TWI776467B - Cleaning chemical supply device and cleaning unit - Google Patents

Cleaning chemical supply device and cleaning unit Download PDF

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TWI776467B
TWI776467B TW110113498A TW110113498A TWI776467B TW I776467 B TWI776467 B TW I776467B TW 110113498 A TW110113498 A TW 110113498A TW 110113498 A TW110113498 A TW 110113498A TW I776467 B TWI776467 B TW I776467B
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chemical solution
cleaning
flow rate
diw
chemical
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TW202143322A (en
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豊増富士彥
丸山徹
國澤淳次
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日商荏原製作所股份有限公司
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67011Apparatus for manufacture or treatment
    • H01L21/67017Apparatus for fluid treatment
    • H01L21/67028Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
    • H01L21/6704Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
    • H01L21/67051Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40Mixing liquids with liquids; Emulsifying
    • B01F23/49Mixing systems, i.e. flow charts or diagrams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20Measuring; Control or regulation
    • B01F35/22Control or regulation
    • B01F35/221Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211Amount of delivered fluid during a period
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67011Apparatus for manufacture or treatment
    • H01L21/67017Apparatus for fluid treatment
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/67005Apparatus not specifically provided for elsewhere
    • H01L21/67242Apparatus for monitoring, sorting or marking
    • H01L21/67253Process monitoring, e.g. flow or thickness monitoring

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
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  • Cleaning By Liquid Or Steam (AREA)

Abstract

本發明提供一種能夠靈活地因應稀釋比例的變更、且能夠抑制裝置尺寸的大型化的清洗藥液供給裝置、清洗藥液的供給方法及清洗單元,清洗藥液供給裝置具有:第1直列式混合器(72),用於將第1清洗藥液供給到清洗裝置(200);第2直列式混合器(73),用於將第2清洗藥液供給到基板清洗裝置(200);第1藥液CLC箱(120),用於對供給到第1直列式混合器(72)的第1藥液的流量進行控制;第2藥液CLC箱(130),用於對供給到第2直列式混合器(73)的第2藥液的流量進行控制;以及DIWCLC箱(110),用於對供給到第1直列式混合器(72)或第2直列式混合器(73)的稀釋水的流量進行控制,且清洗藥液供給裝置構成為:將稀釋水的供給目的地從第1直列式混合器(72)切換到第2直列式混合器(73),或從第2直列式混合器(73)切換到第1直列式混合器(72)。 The present invention provides a cleaning chemical solution supply device, a cleaning chemical solution supply method, and a cleaning unit that can flexibly respond to changes in dilution ratios and can suppress an increase in device size, wherein the cleaning chemical solution supply device includes: a first in-line mixing a device (72) for supplying the first cleaning chemical to the cleaning device (200); a second in-line mixer (73) for supplying the second cleaning chemical to the substrate cleaning device (200); the first The chemical liquid CLC tank (120) is used to control the flow rate of the first chemical liquid supplied to the first in-line mixer (72); the second chemical liquid CLC tank (130) is used to supply the second in-line mixer (72). control the flow rate of the second chemical solution in the mixer (73); and a DIWCLC tank (110) for diluting water supplied to the first inline mixer (72) or the second inline mixer (73) and the cleaning chemical solution supply device is configured to switch the supply destination of the dilution water from the first inline mixer (72) to the second inline mixer (73), or from the second inline mixer The mixer (73) is switched to the first in-line mixer (72).

Description

清洗藥液供給裝置及清洗單元 Cleaning chemical supply device and cleaning unit

本發明涉及一種清洗藥液供給裝置及清洗單元。 The invention relates to a cleaning liquid medicine supply device and a cleaning unit.

CMP(Chemical Mechanical Polishing:化學機械研磨)裝置具有:研磨裝置,該研磨裝置用於對形成有半導體晶片的半導體基板的表面進行研磨;以及清洗裝置,該清洗裝置用於將清洗藥液供給到由研磨裝置研磨後的半導體基板並對其進行清洗。該清洗裝置通過對藥液混合DIW(De-Ionized Water:去離子水)等稀釋水,而製成清洗藥液(稀釋後的藥液),用清洗藥液對半導體基板進行清洗(例如,參照專利文獻1)。 A CMP (Chemical Mechanical Polishing) apparatus includes: a polishing device for polishing the surface of a semiconductor substrate on which a semiconductor wafer is formed; and a cleaning device for supplying a cleaning chemical solution to a The polishing apparatus grinds and cleans the semiconductor substrate after polishing. In this cleaning apparatus, diluted water such as DIW (De-Ionized Water) is mixed with the chemical solution to prepare a cleaning chemical solution (diluted chemical solution), and the semiconductor substrate is cleaned with the cleaning chemical solution (for example, refer to Patent Document 1).

在使用清洗藥液的清洗裝置中,以往使用清洗藥液供給裝置,其具有將藥液的流量計和DIW的流量計排列成一對而構成的直列(in-line)式的流量計。這些藥液的流量計和DIW的流量計包含CLC(Closed Loop Controller:閉環控制器),對各自的流量進行反饋控制,以使藥液流量和DIW流量成為一定的比例。由此,按一定比例稀釋後的藥液被供給到清洗裝置的清洗槽內。 Among the cleaning apparatuses using the cleaning chemical solution, a cleaning chemical solution supply device has been conventionally used, which has an in-line type flowmeter configured by arranging a chemical solution flowmeter and a DIW flowmeter as a pair. These chemical liquid flowmeters and DIW flowmeters include CLC (Closed Loop Controller: closed loop controller), and feedback control is performed on the respective flow rates so that the chemical liquid flow rate and the DIW flow rate become a constant ratio. As a result, the chemical solution diluted in a certain ratio is supplied into the cleaning tank of the cleaning device.

在以往的藥液供給裝置中,在一個箱內收納有藥液的流量計、DIW的流量計、以及將流量被控制的藥液和DIW混合的直列式攪拌器。即,一個DIW的流量計被設計成與一個藥液的流量計組合,一個箱的大小被設計成僅收納兩個流量計的大小。 In a conventional chemical solution supply device, a flowmeter for the chemical solution, a flowmeter for DIW, and an in-line agitator for mixing the chemical solution and DIW whose flow rates are controlled are housed in one tank. That is, one DIW flowmeter is designed to be combined with one chemical liquid flowmeter, and one box is designed to accommodate only two flowmeters.

近年來,在設於CMP裝置的清洗裝置中,要求這樣的處理:交替使用酸性的藥液和鹼性的藥液,對半導體基板進行清洗。如上所述,由於以往的清洗裝置的箱被設成僅收納兩個流量計,因此,在所述箱內可僅收納兩種藥液的流量計,可在所述箱內增加設置DIW的流量計。因此,在以往的藥液供給裝置中,在箱內配置藥液用的兩個流量計,且通過各自的流量計而供給預先被稀釋的兩種清洗藥液。 In recent years, in a cleaning apparatus provided in a CMP apparatus, a process of cleaning a semiconductor substrate by alternately using an acidic chemical solution and an alkaline chemical solution has been demanded. As described above, since the tank of the conventional cleaning apparatus is configured to accommodate only two flow meters, only two types of flow meters for chemical solutions can be accommodated in the tank, and the flow rate of the DIW can be increased in the tank. count. Therefore, in the conventional chemical solution supply device, two flow meters for the chemical solution are arranged in the tank, and two types of cleaning chemical solutions diluted in advance are supplied by the respective flow meters.

但是,在使用預先被稀釋的兩種清洗藥液的藥液供給裝置中,當清洗藥液的稀釋比例隨著製程參數(process recipe)的變更而變更時,必須準備不同的稀釋比例的清洗藥液。即,該藥液供給裝置不能靈活地因應製程參數的變更。 However, in a chemical solution supply device using two types of cleaning chemical solutions diluted in advance, when the dilution ratio of the cleaning chemical solution is changed according to the change of the process recipe, it is necessary to prepare cleaning chemicals with different dilution ratios. liquid. That is, the chemical solution supply device cannot flexibly respond to changes in process parameters.

另一方面,若使用上述的直列式流量計,則只要變更藥液的流量計和DIW的流量計的流量設定值,就可因應稀釋比例隨著製程參數的變更而發生的變更。但是,為了將兩種藥液供給到清洗裝置,必須準備兩個直列式流量計。在該情況下,由於對兩個直列式流量計分別設置DIW的流量計,因此,存在藥液供給裝置大型化的問題。 On the other hand, if the above-mentioned in-line flowmeter is used, the change of the dilution ratio due to the change of the process parameters can be accommodated only by changing the flow rate setting values of the flowmeter of the chemical solution and the flowmeter of the DIW. However, in order to supply two kinds of chemical solutions to the cleaning device, two in-line flowmeters must be prepared. In this case, since a DIW flowmeter is provided for each of the two in-line flowmeters, there is a problem that the size of the chemical solution supply device is increased.

然而,作為藥液的流量計及DIW的流量計,一般使用差壓式流量計(孔板流量計:orifice flowmeter)。差壓式流量計是,在通過流體的路徑上配置節流孔,根據差壓而測定該流體的體積流量(流速)。差壓式流量計的測定範圍,即是可由CLC控制的流量範圍,在構造上決定於節流孔的直徑。即,孔板流量計的測定範圍一般是,最大最小流量比為1:9,以成為例如30ml/min至300ml/min。因此,可由藥液的流量計及DIW的流量計控制的流量範圍,在構造上是預先確定的範圍。 However, as the flowmeter of the chemical solution and the flowmeter of the DIW, a differential pressure flowmeter (orifice flowmeter) is generally used. In a differential pressure flowmeter, an orifice is arranged in a passage through which a fluid passes, and the volume flow rate (flow velocity) of the fluid is measured from a differential pressure. The measurement range of the differential pressure flowmeter, that is, the flow rate range that can be controlled by the CLC, is determined by the diameter of the orifice in structure. That is, the measurement range of the orifice flowmeter is generally 1:9 at the maximum and minimum flow rate ratio, for example, 30 ml/min to 300 ml/min. Therefore, the flow rate range that can be controlled by the flowmeter of the chemical solution and the flowmeter of the DIW is a predetermined range in terms of structure.

在以往的清洗藥液供給裝置中,當清洗藥液的稀釋比例、或者清洗藥液的供給流量因製程參數的變更而變更時,存在如下情況:所需的藥液及DIW的流量未落入可由當前選定的藥液流量計及DIW流量計控制的流量範圍。在該情況下,通過再選定藥液流量計及DIW流量計,並更換成可控制的流量範圍的流量計,來因應製程參數的變更。因此,在變更後的製程參數中所需的藥液及DIW的流量未落入藥液流量計及DIW流量計的流量範圍的情況下,每次製程參數有變更時就必須更換藥液流量計及DIW流量計,花費了工夫。 In the conventional cleaning chemical supply device, when the dilution ratio of the cleaning chemical or the supply flow rate of the cleaning chemical is changed due to changes in the process parameters, there are cases where the flow rates of the required chemical and DIW do not fall within the The flow range that can be controlled by the currently selected chemical liquid flowmeter and DIW flowmeter. In this case, by reselecting the chemical liquid flowmeter and the DIW flowmeter, and replacing it with a flowmeter within a controllable flow rate range, it is possible to respond to changes in process parameters. Therefore, if the flow rate of the chemical solution and DIW required in the changed process parameters does not fall within the flow range of the chemical solution flowmeter and the DIW flowmeter, the chemical solution flowmeter must be replaced every time the process parameters are changed. And DIW flowmeter, it took time.

在CMP裝置的清洗裝置中,清洗藥液不僅用於基板的清洗,而且還對等待清洗的基板(接下來被清洗的基板)用於防止基板的氧化。在以往的CMP裝置的清洗處理中,基板的清洗和清洗的等待不同時進行。即,基板清洗的期間,基板未被搬送到等待場所。但是,近年來為了提高處理的處理量(throughput),要求同時進行基板的清洗和清洗的等待的處理。在同時進行基板的清洗和清洗的等待的情況下,由於分別使用清洗藥液,因此,需要比以往多的流量的藥液及DIW。此外,要求還可因應供給小流量的藥液及DIW的處理。再者,在可由以往的藥液的流量計及DIW的流量計控制的流量範圍中,不能因應多種處理。 In a cleaning apparatus of a CMP apparatus, the cleaning chemical is used not only for cleaning the substrate, but also for preventing oxidation of the substrate to be cleaned (substrate to be cleaned next). In the cleaning process of the conventional CMP apparatus, the cleaning of the substrate and the waiting for cleaning are not performed simultaneously. That is, during the cleaning of the substrate, the substrate is not conveyed to the waiting place. However, in recent years, in order to increase the throughput of the process, it is required to perform the cleaning of the substrate and the process of waiting for the cleaning at the same time. When the cleaning of the substrate and the waiting for cleaning are performed at the same time, since the cleaning chemical solution is used separately, a larger flow rate of the chemical solution and DIW is required than before. In addition, it is also possible to supply a small flow of chemical solution and DIW processing according to requirements. Furthermore, in the flow rate range that can be controlled by the conventional chemical liquid flowmeter and the DIW flowmeter, it cannot accommodate various processes.

專利文獻1:日本特開2009-54959號公報 Patent Document 1: Japanese Patent Laid-Open No. 2009-54959

本發明是為解決上述問題中的至少一個問題而做成的,其目的之一是,提供一種清洗藥液供給裝置及清洗藥液供給方法,可靈活地因應稀釋比例的變更,且可抑制裝置尺寸的大型化。 The present invention is made to solve at least one of the above-mentioned problems, and one of its objects is to provide a cleaning chemical solution supply device and a cleaning chemical solution supply method, which can flexibly respond to changes in the dilution ratio, and can suppress the device increase in size.

本發明的其他目的之一是,不更換流量計就可在寬大的流量範圍供給藥液及DIW。 Another object of the present invention is to supply chemical solution and DIW in a wide flow rate range without replacing the flow meter.

根據本發明的一方式,提供一種清洗藥液供給裝置。該清洗藥液供給裝置用於將清洗藥液供給到基板清洗裝置,該清洗藥液供給裝置具有:第1混合部,該第1混合部用於將對第1藥液和稀釋水進行混合所得到的第1清洗藥液供給到所述基板清洗裝置;第2混合部,該第2混合部用於將對第2藥液和稀釋水進行混合所得到的第2清洗藥液供給到所述基板清洗裝置;第1藥液控制部,該第1藥液控制部用於對供給到所述第1混合部的所述第1藥液的流量進行控制;第2藥液控制部,該第2藥液控制部用於對供給到所述第2混合部的所述第2藥液的流量進行控制;稀釋水控制部,該稀釋水控制部用於對供給到所述第1混合部或所述第2混合部的所述稀釋水的流量進行控制;以及稀釋水供給切換部,該稀釋水供給切換部將所述稀釋水的供給目的地從所述第1混合部切換到所述第2混合部、或者從所述第2混合部切換到所述第1混合部。 According to one aspect of the present invention, there is provided a cleaning chemical solution supply device. The cleaning chemical solution supply device is used for supplying the cleaning chemical solution to the substrate cleaning device, and the cleaning chemical solution supply device has a first mixing unit for mixing the first chemical solution and the dilution water. The obtained first cleaning chemical solution is supplied to the substrate cleaning apparatus; and a second mixing unit for supplying a second cleaning chemical solution obtained by mixing the second chemical solution and dilution water to the substrate cleaning device; a substrate cleaning apparatus; a first chemical solution control unit for controlling the flow rate of the first chemical solution supplied to the first mixing unit; a second chemical solution control unit for the first chemical solution control unit 2. A chemical solution control unit for controlling the flow rate of the second chemical solution supplied to the second mixing unit; a dilution water control unit for controlling the flow rate of the second chemical solution supplied to the first mixing unit or the dilution water control unit. controlling the flow rate of the dilution water in the second mixing unit; and a dilution water supply switching unit that switches the supply destination of the dilution water from the first mixing unit to the first mixing unit 2 mixing units, or switching from the second mixing unit to the first mixing unit.

根據本發明的一方式,在所述清洗藥液供給裝置中,所述第1藥液控制部構成為,在所述第2清洗藥液供給到所述基板清洗裝置的期間,停止供給所述第1藥液,所述第2藥液控制部構成為,在所述第1清洗藥液供給到所述基板清洗裝置的期間,停止供給所述第2藥液。 According to an aspect of the present invention, in the cleaning chemical solution supply device, the first chemical solution control unit is configured to stop supplying the second cleaning chemical solution to the substrate cleaning device while the second cleaning chemical solution is being supplied to the substrate cleaning device. The first chemical solution, and the second chemical solution control unit is configured to stop supplying the second chemical solution while the first cleaning chemical solution is being supplied to the substrate cleaning apparatus.

根據本發明的另一方式,在所述清洗藥液供給裝置中,所述稀釋水供給切換部構成為,在所述第1藥液控制部將所述第1藥液供給到所述第1混合部的期間,將所述稀釋水向第1混合部供給,在所述第2藥液控制部將所述第2藥液供給到所述第2混合部的期間,將所述稀釋水向第2混合部供給。 According to another aspect of the present invention, in the cleaning chemical solution supply device, the dilution water supply switching unit is configured to supply the first chemical solution to the first chemical solution control unit in the first chemical solution control unit During the mixing part, the dilution water is supplied to the first mixing part, and the dilution water is supplied to the second mixing part while the second chemical solution control part is supplying the second chemical to the second mixing part. The second mixing unit supplies.

根據本發明的另一方式,所述清洗藥液供給裝置具有:第1藥液供給源,該第1藥液供給源將第1藥液供給到所述第1藥液控制部;第2藥液供給源,該第2藥液供給源將第2藥液供給到所述第2藥液控制部;第1藥液入口閥, 該第1藥液入口閥設在連接所述第1藥液供給源和所述第1藥液控制部的管路上;以及第2藥液入口閥,該第2藥液入口閥設在連接所述第2藥液供給源和所述第2藥液控制部的管路上。 According to another aspect of the present invention, the cleaning chemical solution supply device includes: a first chemical solution supply source that supplies the first chemical solution to the first chemical solution control unit; a second chemical solution supply source a liquid supply source, the second chemical liquid supply source supplies the second chemical liquid to the second chemical liquid control part; the first chemical liquid inlet valve, The first chemical solution inlet valve is provided on the pipeline connecting the first chemical solution supply source and the first chemical solution control unit; and the second chemical solution inlet valve is provided at the connection place on the pipeline between the second chemical solution supply source and the second chemical solution control unit.

根據本發明的另一方式,在所述清洗藥液供給裝置中,所述第1藥液及所述第2藥液中,一方是鹼性的藥液,另一方是酸性的藥液。 According to another aspect of the present invention, in the cleaning chemical solution supply device, one of the first chemical solution and the second chemical solution is an alkaline chemical solution and the other is an acidic chemical solution.

根據本發明的另一方式,提供一種清洗藥液供給方法。該清洗藥液供給方法用於將清洗藥液供給到基板清洗裝置,該清洗藥液供給方法具有如下工序:對第1藥液的流量進行控制的工序;對稀釋水的流量進行控制的工序;將所述第1藥液和所述稀釋水供給到第1混合部、並使所述第1藥液和所述稀釋水混合的工序;第1供給工序,該第1供給工序將對所述稀釋水和所述第1藥液進行混合所得到的第1清洗藥液供給到所述基板清洗裝置;對第2藥液的流量進行控制的工序;將所述稀釋水的供給目的地從所述第1混合部切換到第2混合部的工序;將所述第2藥液和所述稀釋水供給到所述第2混合部、並使所述第2藥液和所述稀釋水混合的工序;以及第2供給工序,該第2供給工序將與所述稀釋水混合所得到的第2清洗藥液供給到所述基板清洗裝置。 According to another aspect of the present invention, a cleaning chemical solution supply method is provided. The cleaning chemical solution supply method is used for supplying the cleaning chemical solution to a substrate cleaning apparatus, and the cleaning chemical solution supply method includes the following steps: a step of controlling the flow rate of the first chemical solution; and a step of controlling the flow rate of the dilution water; a step of supplying the first chemical solution and the dilution water to the first mixing unit and mixing the first chemical solution and the dilution water; the steps of supplying a first cleaning chemical solution obtained by mixing dilution water and the first chemical solution to the substrate cleaning apparatus; controlling the flow rate of the second chemical solution; changing the supply destination of the dilution water from any The process of switching the first mixing part to the second mixing part; supplying the second chemical solution and the dilution water to the second mixing part, and mixing the second chemical solution and the dilution water steps; and a second supply step of supplying a second cleaning chemical solution obtained by mixing with the dilution water to the substrate cleaning apparatus.

根據本發明的另一方式,在所述清洗藥液供給方法中,所述第1供給工序具有如下工序:在所述第2供給工序中所述第2清洗藥液供給到所述基板清洗裝置的期間,停止供給所述第1清洗藥液;所述第2供給工序具有如下工序:在所述第1供給工序中所述第1清洗藥液供給到所述清洗裝置的期間,停止供給所述第2清洗藥液。 According to another aspect of the present invention, in the cleaning chemical solution supply method, the first supplying step includes a step of supplying the second cleaning chemical solution to the substrate cleaning apparatus in the second supplying step During the period of time, the supply of the first cleaning chemical is stopped; the second supplying step includes a step of stopping supplying all the cleaning chemicals while the first cleaning chemical is being supplied to the cleaning device in the first supplying step. Describe the second cleaning solution.

根據本發明的另一方式,在所述藥液供給方法中,所述第1藥液及所述第2藥液中,一方是鹼性的藥液,另一方是酸性的藥液。 According to another aspect of the present invention, in the chemical liquid supply method, one of the first chemical liquid and the second chemical liquid is an alkaline chemical liquid, and the other is an acidic chemical liquid.

根據本發明的另一方式,提供一種清洗單元。該清洗單元具有:對基板進行清洗的基板清洗裝置;以及將清洗藥液供給到所述基板清洗裝 置的清洗藥液供給裝置,所述基板清洗裝置具有:將清洗藥液供給到所述基板的噴嘴;以及對供給到所述基板的所述清洗藥液的流量進行測定的第1超聲波流量計,所述第1超聲波流量計配置在比所述噴嘴的位置低的位置。 According to another aspect of the present invention, a cleaning unit is provided. The cleaning unit includes: a substrate cleaning device for cleaning a substrate; and supplying a cleaning chemical to the substrate cleaning device A cleaning chemical solution supply device provided, the substrate cleaning device has: a nozzle for supplying the cleaning chemical solution to the substrate; and a first ultrasonic flowmeter for measuring the flow rate of the cleaning chemical solution supplied to the substrate , the first ultrasonic flowmeter is arranged at a position lower than the position of the nozzle.

根據本發明的另一方式,在所述清洗單元中,所述第1超聲波流量計構成為,通過所述第1超聲波流量計的清洗藥液的流動方向朝向鉛垂方向。 According to another aspect of the present invention, in the cleaning unit, the first ultrasonic flowmeter is configured such that a flow direction of the cleaning chemical solution passing through the first ultrasonic flowmeter faces a vertical direction.

根據本發明的另一方式,在所述清洗單元中,所述清洗藥液供給裝置具有:混合部,該混合部用於將對藥液和稀釋水進行混合所得到的清洗藥液供給到所述基板清洗裝置;藥液流量控制部,該藥液流量控制部對所述藥液的流量進行控制,並將所述藥液供給到所述混合部;以及稀釋水流量控制部,該稀釋水流量控制部對所述稀釋水的流量進行控制,並將所述稀釋水供給到所述混合部,所述藥液流量控制部及所述稀釋水流量控制部分別具有第2超聲波流量計及第3超聲波流量計,所述第2超聲波流量計及所述第3超聲波流量計配置在比所述噴嘴的位置低的位置。 According to another aspect of the present invention, in the cleaning unit, the cleaning chemical solution supply device includes a mixing unit for supplying the cleaning chemical solution obtained by mixing the chemical solution and the dilution water to the cleaning unit. the substrate cleaning apparatus; a chemical solution flow control unit that controls the flow rate of the chemical solution and supplies the chemical solution to the mixing unit; and a dilution water flow control unit that The flow rate control unit controls the flow rate of the dilution water and supplies the dilution water to the mixing unit, and the chemical solution flow rate control unit and the dilution water flow rate control unit have a second ultrasonic flowmeter and a second ultrasonic flowmeter, respectively. 3. The ultrasonic flowmeter, wherein the second ultrasonic flowmeter and the third ultrasonic flowmeter are arranged at a position lower than the position of the nozzle.

根據本發明的另一方式,在所述清洗單元中,所述第2超聲波流量計及所述第3超聲波流量計配置成,在所述第2超聲波流量計中流動的稀釋水的流動方向和通過所述第3超聲波流量計的藥液的流動方向朝向鉛垂方向。 According to another aspect of the present invention, in the cleaning unit, the second ultrasonic flowmeter and the third ultrasonic flowmeter are arranged so that the flow direction of the dilution water flowing in the second ultrasonic flowmeter is the same as the flow direction of the dilution water flowing in the second ultrasonic flowmeter. The flow direction of the chemical solution passing through the third ultrasonic flowmeter faces the vertical direction.

根據本發明的一方式,提供一種清洗單元。該清洗單元具有:對基板進行清洗的基板清洗裝置;以及將清洗藥液供給到所述基板清洗裝置的清洗藥液供給裝置。所述基板清洗裝置具有:對基板進行清洗的清洗部;以及等待部,該等待部配置等待要由所述清洗部進行清洗的基板,且將清洗藥液供給到等待中的基板。所述清洗藥液供給裝置具有:混合部,該混合部用於將對藥液和稀釋水進行混合所得到的清洗藥液供給到所述清洗部及所述等待部;藥液流量控制部,該藥液流量控制部對所述藥液的流量進行控制,並將所述藥液 供給到所述混合部;以及稀釋水流量控制部,該稀釋水流量控制部對所述稀釋水的流量進行控制,並將所述稀釋水供給到所述混合部。所述藥液流量控制部具有第1藥液流量控制部和第2藥液流量控制部,且所述藥液流量控制部構成為,將流量由所述第1藥液流量控制部及/或所述第2藥液流量控制部控制後的藥液供給到所述混合部。所述第1藥液流量控制部構成為,能夠在第1範圍將流量控制。所述第2藥液流量控制部構成為,能夠在一部分與所述第1範圍重疊的第2範圍將流量控制。所述稀釋水流量控制部具有第1稀釋水流量控制部和第2稀釋水流量控制部,且所述稀釋水流量控制部構成為,將流量由所述第1稀釋水流量控制部及/或所述第2稀釋水流量控制部控制後的稀釋水供給到所述混合部。所述第1稀釋水流量控制部構成為,能夠在第3範圍將流量控制,所述第2稀釋水流量控制部構成為,能夠在一部分與所述第3範圍重疊的第4範圍將流量控制。 According to one aspect of the present invention, a cleaning unit is provided. The cleaning unit includes: a substrate cleaning device for cleaning the substrate; and a cleaning chemical solution supply device for supplying a cleaning chemical solution to the substrate cleaning device. The substrate cleaning apparatus includes a cleaning unit that cleans a substrate, and a waiting unit that arranges a substrate waiting to be cleaned by the cleaning unit and supplies a cleaning chemical to the waiting substrate. The cleaning chemical solution supplying device includes: a mixing part for supplying cleaning chemical solution obtained by mixing chemical solution and dilution water to the cleaning part and the waiting part; and a chemical solution flow control part, The medicinal solution flow control unit controls the flow rate of the medicinal solution, and controls the medicinal solution supplied to the mixing unit; and a dilution water flow control unit that controls the flow rate of the dilution water and supplies the dilution water to the mixing unit. The chemical solution flow rate control unit includes a first chemical solution flow rate control unit and a second chemical solution flow rate control unit, and the chemical solution flow rate control unit is configured to control the flow rate from the first chemical solution flow rate control unit and/or The chemical solution controlled by the second chemical solution flow rate control unit is supplied to the mixing unit. The first chemical solution flow rate control unit is configured to be able to control the flow rate within the first range. The second chemical solution flow rate control unit is configured to be capable of controlling the flow rate in a second range partially overlapping the first range. The dilution water flow rate control unit includes a first dilution water flow rate control unit and a second dilution water flow rate control unit, and the dilution water flow rate control unit is configured to control the flow rate from the first dilution water flow rate control unit and/or the dilution water flow rate control unit. The dilution water controlled by the second dilution water flow control unit is supplied to the mixing unit. The first dilution water flow control unit is configured to be capable of controlling the flow rate in a third range, and the second dilution water flow rate control unit is configured to be capable of controlling the flow rate in a fourth range partially overlapping the third range. .

根據本發明的另一方式,在所述清洗單元中,同時進行所述清洗部中的基板的清洗、和向所述等待部中的基板供給清洗藥液。 According to another aspect of the present invention, in the cleaning unit, cleaning of the substrate in the cleaning section and supply of a cleaning chemical to the substrate in the waiting section are performed simultaneously.

根據本發明的另一方式,在所述清洗單元中,所述清洗部具有:上表面清洗部,該上表面清洗部構成為,將清洗藥液供給到基板的上表面;以及下表面清洗部,該下表面清洗部構成為,將清洗藥液供給到基板的下表面。 According to another aspect of the present invention, in the cleaning unit, the cleaning unit includes: an upper surface cleaning unit configured to supply cleaning chemicals to the upper surface of the substrate; and a lower surface cleaning unit , and the lower surface cleaning unit is configured to supply cleaning chemicals to the lower surface of the substrate.

採用本發明,可提供一種清洗藥液供給裝置及清洗藥液供給方法,可靈活地因應稀釋比例的變更,且可抑制裝置尺寸的大型化。 According to the present invention, a cleaning chemical solution supply device and a cleaning chemical solution supply method can be provided, which can flexibly respond to changes in the dilution ratio, and can suppress an increase in the size of the device.

採用本發明,不更換流量計,就可在寬大的流量範圍供給藥液及DIW。 According to the present invention, the liquid medicine and DIW can be supplied in a wide flow range without replacing the flow meter.

10:DIW供給源 10: DIW supply source

20:第1藥液供給源 20: The first chemical supply source

30:第2藥液供給源 30: Second chemical supply source

50:藥液共用箱 50: liquid medicine sharing box

51,51a:第1藥液入口閥 51, 51a: 1st chemical inlet valve

52:壓力計 52: Manometer

60:藥液共用箱 60: liquid medicine sharing box

61,61a:第2藥液入口閥 61,61a: 2nd chemical inlet valve

62:壓力計 62: Manometer

72,72a:第1直列式混合器 72, 72a: 1st in-line mixer

73,73a:第2直列式混合器 73, 73a: 2nd in-line mixer

81:DIW供給配管 81: DIW supply piping

82:DIW分歧配管 82: DIW branch piping

83:第1DIW配管 83: 1st DIW piping

84:第2DIW配管 84: 2nd DIW piping

86:DIW供給閥86 86: DIW supply valve 86

87:DIW壓力調節器 87: DIW pressure regulator

88:DIW壓力計 88: DIW pressure gauge

91:配管 91: Piping

92:配管 92: Piping

93:第1藥液配管 93: The first chemical solution piping

94:第2藥液配管 94: Second chemical liquid piping

96:第1清洗藥液配管 96: 1st cleaning liquid piping

97:第2清洗藥液配管 97: 2nd cleaning liquid piping

100:藥液供給裝置 100: liquid medicine supply device

110:DIWCLC箱 110: DIWCLC box

111:CLC 111: CLC

111a,111b,121a,121b:DIWCLC 111a, 111b, 121a, 121b: DIWCLC

113a,113b,123a,123b:藥液CLC 113a, 113b, 123a, 123b: Liquid CLC

112:第1DIW供給閥 112: 1st DIW supply valve

113:第2DIW供給閥 113: 2nd DIW supply valve

115,116:直列式混合器 115, 116: Inline mixers

120:第1藥液CLC箱 120: The first liquid medicine CLC box

121:CLC 121: CLC

122:第1藥液供給閥 122: The first chemical supply valve

130:第2藥液CLC箱 130: The second liquid medicine CLC box

131:CLC 131: CLC

132:第2藥液供給閥 132: Second chemical supply valve

200:清洗裝置 200: Cleaning device

210:DIW清洗部220 210: DIW Cleaning Section 220

220:藥液清洗部 220: Liquid cleaning department

221,241:等待部 221, 241: Waiting Department

222,242:上表面清洗部 222,242: Upper surface cleaning department

223,243:下表面清洗部 223,243: Lower Surface Cleaning Department

225,227,229:流量表 225, 227, 229: Flow meters

230:清洗槽 230: Cleaning tank

231a,232a,233a:噴嘴 231a, 232a, 233a: Nozzle

圖1是表示第1實施方式的藥液供給裝置的概略前視圖。 FIG. 1 is a schematic front view showing a chemical solution supply device according to the first embodiment.

圖2是第1實施方式的藥液供給裝置的藥液供給流程圖。 FIG. 2 is a flow chart of supply of a chemical solution by the chemical solution supply device according to the first embodiment.

圖3是第2實施方式的藥液供給裝置的藥液供給流程圖。 FIG. 3 is a flow chart of supply of a chemical solution by the chemical solution supply device according to the second embodiment.

圖4是表示第3實施方式的清洗單元所具有的藥液供給裝置的概略側視圖。 4 is a schematic side view showing a chemical solution supply device included in a cleaning unit according to a third embodiment.

圖5是表示第3實施方式的清洗單元所具有的清洗裝置的概略立體圖。 5 is a schematic perspective view showing a cleaning device included in a cleaning unit according to a third embodiment.

圖6是第3實施方式的清洗單元的概略圖。 6 is a schematic diagram of a cleaning unit according to a third embodiment.

圖7是表示第4實施方式的清洗單元所具有的藥液供給裝置的概略側視圖。 7 is a schematic side view showing a chemical solution supply device included in the cleaning unit according to the fourth embodiment.

圖8是第4實施方式的清洗單元的概略圖。 FIG. 8 is a schematic diagram of a cleaning unit according to a fourth embodiment.

圖9是表示第4實施方式的清洗單元的DIW及藥液的供給處理的程序圖。 FIG. 9 is a flow chart showing the DIW and chemical solution supply processing in the cleaning unit according to the fourth embodiment.

下面,參照隨說明書附上的圖式,來說明本發明的實施方式。在下面說明的圖式中,對於相同或類似的結構要素,標上相同或類似的符號而省略重複說明。另外,在對下面說明的單獨的結構要素進行任意組合的發明中,也包含本發明作為對象的技術思想。 Hereinafter, embodiments of the present invention will be described with reference to the drawings attached to the specification. In the drawings described below, the same or similar components are assigned the same or similar symbols, and repeated descriptions are omitted. In addition, the technical idea of the present invention is also included in the invention in which the individual constituent elements described below are arbitrarily combined.

<第1實施方式> <First Embodiment>

下面,參照圖式來說明本發明的第1實施方式。圖1是表示本發明第1實施方式的藥液供給裝置的概略前視圖。本實施方式的藥液供給裝置構 成為,可將例如鹼性的藥液即第1藥液和例如酸性的藥液即第2藥液供給到CMP裝置所具有的清洗裝置。如圖1所示,第1實施方式的藥液供給裝置100具有:殼體101;DIWCLC箱110(稀釋水控制部);第1藥液CLC箱120(第1藥液控制部);以及第2藥液CLC箱130(第2藥液控制部)。DIWCLC箱110對DIW(稀釋水)的供給進行控制。第1藥液CLC箱120對第1藥液的供給進行控制。第2藥液CLC箱130對第2藥液的供給進行控制。 Next, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view showing a chemical solution supply device according to a first embodiment of the present invention. The chemical solution supply device structure of the present embodiment It is possible to supply, for example, a first chemical liquid, which is an alkaline chemical liquid, and a second chemical liquid, such as an acidic chemical liquid, to the cleaning device included in the CMP apparatus. As shown in FIG. 1 , the chemical solution supply device 100 according to the first embodiment includes: a casing 101; a DIWCLC tank 110 (dilution water control unit); a first chemical solution CLC tank 120 (first chemical solution control unit); 2. Chemical liquid CLC tank 130 (second chemical liquid control unit). The DIWCLC tank 110 controls the supply of DIW (dilution water). The first chemical solution CLC tank 120 controls the supply of the first chemical solution. The second chemical solution CLC tank 130 controls the supply of the second chemical solution.

藥液供給裝置100還具有複數個藥液共用箱(共用箱:utility box)50或60,它們用於將來自第1藥液供給源20及第2藥液供給源30(參照圖2及圖3)的藥液導入藥液供給裝置100。在圖示的例子中,六個藥液共用箱50或60設於藥液供給裝置100,但是這是一例子而已,根據清洗裝置的規格,藥液共用箱50或60的數量也可適當變更。 The chemical solution supply device 100 further includes a plurality of chemical solution common boxes (utility boxes) 50 or 60 for supplying the chemical solution from the first chemical solution supply source 20 and the second chemical solution supply source 30 (see FIG. 2 and FIG. 2 ). 3) The medicinal solution is introduced into the medicinal solution supply device 100 . In the illustrated example, six chemical solution common tanks 50 or 60 are provided in the chemical solution supply device 100, but this is only an example, and the number of the chemical solution common tanks 50 or 60 may be appropriately changed according to the specifications of the cleaning device. .

DIWCLC箱110、第1藥液CLC箱120、第2藥液CLC箱130和複數個藥液共用箱50或60被收納在殼體101內。 The DIWCLC tank 110 , the first chemical liquid CLC tank 120 , the second chemical liquid CLC tank 130 , and the plurality of chemical liquid common tanks 50 or 60 are accommodated in the casing 101 .

DIWCLC箱110構成為,將來自後述的DIW供給源10的DIW供給到後述的第1直列式混合器72或72a或第2直列式混合器73或73a(參照圖2及圖3)。另外,DIWCLC箱110可將DIW的流量控制成根據反饋控制而設定的流量。 The DIWCLC tank 110 is configured to supply DIW from a DIW supply source 10 described later to a first inline mixer 72 or 72a or a second inline mixer 73 or 73a described later (see FIGS. 2 and 3 ). In addition, the DIWCLC tank 110 can control the flow rate of DIW to the flow rate set according to the feedback control.

第1藥液CLC箱120構成為,將來自第1藥液供給源20的第1藥液供給到後述的第1直列式混合器72或72a(參照圖2及圖3)。另外,第1藥液CLC箱120可將第1藥液的流量控制成根據反饋控制而設定的流量。 The 1st chemical|medical solution CLC tank 120 is comprised so that the 1st chemical|medical solution from the 1st chemical|medical solution supply source 20 may be supplied to the 1st in-line mixer 72 or 72a (refer FIG. 2 and FIG. 3) mentioned later. In addition, the first chemical liquid CLC tank 120 can control the flow rate of the first chemical liquid to a flow rate set by feedback control.

同樣,第2藥液CLC箱130構成為,將來自第2藥液供給源30的第2藥液供給到後述的第2直列式混合器73或73a(參照圖2及圖3)。另外,第2藥液CLC箱130可將第2藥液的流量控制成根據反饋控制而設定的流量。 Similarly, the 2nd chemical|medical solution CLC tank 130 is comprised so that the 2nd chemical|medical solution from the 2nd chemical|medical solution supply source 30 may be supplied to the 2nd in-line mixer 73 or 73a (refer FIG. 2 and FIG. 3) mentioned later. In addition, the second chemical liquid CLC tank 130 can control the flow rate of the second chemical liquid to a flow rate set by feedback control.

雖未圖示,但藥液供給裝置100具有對DIW、第1藥液或第2藥液進行輸送用的配管、閥和壓力計等。詳細結構在圖2及圖3中進行說明。 Although not shown, the chemical solution supply device 100 includes piping, a valve, a pressure gauge, and the like for transporting the DIW, the first chemical solution, or the second chemical solution. The detailed structure is explained in FIG. 2 and FIG. 3 .

圖2是本發明第1實施方式的藥液供給裝置100的藥液供給流程圖。如圖所示,藥液供給裝置100構成為,分別通過噴嘴而與用於供給DIW的DIW供給源10流體連通,與用於供給第1藥液的第1藥液供給源20流體連通,以及與用於供給第2藥液的第2藥液供給源30流體連通。另外,藥液供給裝置100構成為,與清洗裝置200(基板清洗裝置)進行流體連通。具體來說,藥液供給裝置100構成為與清洗裝置200進行流體連通,以使得能夠將稀釋後的第1藥液(第1清洗藥液)及稀釋後的第2藥液(第2清洗藥液)供給到清洗裝置200。 FIG. 2 is a flow chart of supply of the chemical solution by the chemical solution supply device 100 according to the first embodiment of the present invention. As shown in the figure, the chemical solution supply device 100 is configured to be in fluid communication with a DIW supply source 10 for supplying DIW, a first chemical solution supply source 20 for supplying a first chemical solution, and It is in fluid communication with the second chemical solution supply source 30 for supplying the second chemical solution. In addition, the chemical solution supply device 100 is configured to be in fluid communication with the cleaning device 200 (substrate cleaning device). Specifically, the chemical solution supply device 100 is configured to be in fluid communication with the cleaning device 200 so that the diluted first chemical solution (first cleaning chemical solution) and the diluted second chemical solution (second cleaning chemical solution) can be liquid) is supplied to the cleaning device 200.

清洗裝置200具有:DIW清洗部210,該DIW清洗部210用DIW對由研磨裝置研磨後的半導體基板等清洗對象物進行清洗;以及藥液清洗部220,該藥液清洗部220用稀釋後的藥液(清洗藥液)對由研磨裝置研磨後的半導體基板等清洗對象物進行清洗。DIW清洗部210由例如超聲波水清洗部和其它的DIW清洗部等構成。藥液清洗部220由例如輥型清洗部等構成。該DIW清洗部210和藥液清洗部220共存於同一的清洗槽230內。 The cleaning apparatus 200 includes a DIW cleaning unit 210 that cleans a cleaning object such as a semiconductor substrate polished by the polishing apparatus with DIW, and a chemical cleaning unit 220 that uses a diluted chemical solution. The chemical solution (cleaning chemical solution) cleans a cleaning object such as a semiconductor substrate polished by a polishing apparatus. The DIW cleaning unit 210 is constituted by, for example, an ultrasonic water cleaning unit, other DIW cleaning units, and the like. The chemical-solution cleaning unit 220 is constituted by, for example, a roll-type cleaning unit or the like. The DIW cleaning unit 210 and the chemical solution cleaning unit 220 coexist in the same cleaning tank 230 .

藥液供給裝置100具有:第1直列式混合器72(相當於第1混合部的一例子);第2直列式混合器73(相當於第2混合部的一例子);第1藥液CLC箱120;第2藥液CLC箱130;以及DIWCLC箱110。第1直列式混合器72將第1藥液和DIW混合而生成第1清洗藥液。第2直列式混合器73將第2藥液和DIW混合而生成第2清洗藥液。第1藥液CLC箱120對從第1藥液供給源20供給到第1直列式混合器72的第1藥液的流量進行控制。第2藥液CLC箱130對從第2藥液供給源30供給到第2直列式混合器73的第2藥液的流量進行控制。DIWCLC箱110對從DIW供給源10供給到第1直列式混合器72或第2直列式混合器73的DIW的流量進行控制。 The chemical solution supply device 100 includes: a first in-line mixer 72 (corresponding to an example of a first mixing unit); a second in-line mixer 73 (corresponding to an example of a second mixing unit); and a first chemical solution CLC tank 120 ; second chemical liquid CLC tank 130 ; and DIWCLC tank 110 . The first inline mixer 72 mixes the first chemical solution and DIW to generate the first cleaning chemical solution. The second in-line mixer 73 mixes the second chemical solution and DIW to generate the second cleaning chemical solution. The first chemical solution CLC tank 120 controls the flow rate of the first chemical solution supplied from the first chemical solution supply source 20 to the first inline mixer 72 . The second chemical liquid CLC tank 130 controls the flow rate of the second chemical liquid supplied from the second chemical liquid supply source 30 to the second in-line mixer 73 . The DIWCLC tank 110 controls the flow rate of DIW supplied from the DIW supply source 10 to the first inline mixer 72 or the second inline mixer 73 .

第1直列式混合器72構成為,將所生成的第1清洗藥液供給到藥液清洗部220。同樣,第2直列式混合器73構成為,將所生成的第2清洗藥液供給到藥液清洗部220。 The first in-line mixer 72 is configured to supply the generated first cleaning chemical to the chemical cleaning unit 220 . Similarly, the second in-line mixer 73 is configured to supply the generated second cleaning chemical to the chemical cleaning unit 220 .

DIWCLC箱110具有:第1DIW供給閥112;第2DIW供給閥113;以及CLC(Closed Loop Controller:閉環控制器)111。通過打開第1DIW供給閥112,稀釋用DIW從DIW供給源10被供給到第1直列式混合器72。通過打開第2DIW供給閥113,稀釋用DIW從DIW供給源10被供給到第2直列式混合器73。CLC111對供給到第1DIW供給閥112及第2DIW供給閥113的流量進行調節。另外,CLC111對流動於CLC111的DIW的流量進行測定。CLC111基於該測定結果,而對CLC111的內部控制閥的開度進行調節(反饋控制),以使在CLC111內流動的DIW的流量成為所期望的流量。 The DIWCLC tank 110 includes a first DIW supply valve 112 , a second DIW supply valve 113 , and a CLC (Closed Loop Controller) 111 . By opening the first DIW supply valve 112 , the DIW for dilution is supplied from the DIW supply source 10 to the first inline mixer 72 . By opening the second DIW supply valve 113 , the DIW for dilution is supplied from the DIW supply source 10 to the second inline mixer 73 . The CLC 111 adjusts the flow rates supplied to the first DIW supply valve 112 and the second DIW supply valve 113 . In addition, CLC111 measures the flow rate of DIW flowing in CLC111. Based on this measurement result, CLC 111 adjusts (feedback control) the opening degree of the internal control valve of CLC 111 so that the flow rate of DIW flowing in CLC 111 becomes a desired flow rate.

DIWCLC箱110,通過關閉第2DIW供給閥113並打開第1DIW供給閥112而將DIW供給到第1直列式混合器72。另一方面,DIWCLC箱110通過關閉第1DIW供給閥112並打開第2DIW供給閥113而將DIW供給到第2直列式混合器73。即,DIWCLC箱110、第1DIW供給閥112及第2DIW供給閥113,作為在第1直列式混合器72與第2直列式混合器73之間切換DIW的供給目的地的稀釋水供給切換部發揮功能。 The DIWCLC tank 110 supplies DIW to the first inline mixer 72 by closing the second DIW supply valve 113 and opening the first DIW supply valve 112 . On the other hand, the DIWCLC tank 110 supplies DIW to the second inline mixer 73 by closing the first DIW supply valve 112 and opening the second DIW supply valve 113 . That is, the DIWCLC tank 110 , the first DIW supply valve 112 , and the second DIW supply valve 113 function as a dilution water supply switching unit that switches the supply destination of DIW between the first inline mixer 72 and the second inline mixer 73 . Function.

第1藥液CLC箱120具有:第1藥液供給閥122,該第1藥液供給閥122用於將第1藥液從第1藥液供給源20供給到第1直列式混合器72;以及CLC121,該CLC121對流動於第1藥液供給閥122的第1藥液的流量進行測定。CLC121對流動於CLC121的第1藥液的流量進行測定。CLC121基於該測定結果,而對CLC121的內部控制閥的開度進行調節(反饋控制),以使在CLC121內流動的第1藥液的流量成為所期望的流量。 The first chemical solution CLC tank 120 includes a first chemical solution supply valve 122 for supplying the first chemical solution from the first chemical solution supply source 20 to the first inline mixer 72; and a CLC 121 that measures the flow rate of the first chemical solution flowing through the first chemical solution supply valve 122 . The CLC121 measures the flow rate of the first chemical solution flowing in the CLC121. Based on the measurement result, the CLC 121 adjusts (feedback control) the opening of the internal control valve of the CLC 121 so that the flow rate of the first chemical solution flowing in the CLC 121 becomes a desired flow rate.

第2藥液CLC箱130具有:第2藥液供給閥132,該第2藥液供給閥132用於將第2藥液從第2藥液供給源30供給到第2直列式混合器73;以及CLC131,該CLC131對流動於第2藥液供給閥122的第2藥液的流量進行測定。CLC131對流動於CLC131的第2藥液的流量進行測定。CLC131基於該測定結果,而對CLC131的內部控制閥的開度進行調節(反饋控制),以使在CLC131內流動的第2藥液的流量成為所期望的流量。 The second chemical solution CLC tank 130 includes a second chemical solution supply valve 132 for supplying the second chemical solution from the second chemical solution supply source 30 to the second inline mixer 73; and a CLC 131 that measures the flow rate of the second chemical solution flowing through the second chemical solution supply valve 122 . The CLC131 measures the flow rate of the second chemical solution flowing in the CLC131. Based on the measurement result, the CLC 131 adjusts (feedback control) the opening of the internal control valve of the CLC 131 so that the flow rate of the second chemical solution flowing in the CLC 131 becomes a desired flow rate.

另外,藥液供給裝置100具有藥液共用箱50、和藥液共用箱60。藥液共用箱50將來自第1藥液供給源20的第1藥液導入到第1藥液CLC箱120的CLC121。藥液共用箱60將來自第2藥液供給源30的第2藥液導入到第2藥液CLC箱130的CLC131。 In addition, the chemical solution supply device 100 includes a chemical solution common tank 50 and a chemical solution common tank 60 . The chemical solution common tank 50 introduces the first chemical solution from the first chemical solution supply source 20 to the CLC 121 of the first chemical solution CLC tank 120 . The chemical solution common tank 60 introduces the second chemical solution from the second chemical solution supply source 30 to the CLC 131 of the second chemical solution CLC tank 130 .

藥液共用箱50設在連接第1藥液供給源20和第1藥液CLC箱120的CLC121的配管91上,且具有將第1藥液供給到配管91的第1藥液入口閥51、和對配管91內的流體壓力進行計測的壓力計52。第1藥液入口閥51由例如未圖示的控制裝置進行開閉控制。 The chemical solution common tank 50 is provided on the piping 91 connecting the first chemical solution supply source 20 and the CLC 121 of the first chemical solution CLC tank 120, and has a first chemical solution inlet valve 51 for supplying the first chemical solution to the piping 91, and the pressure gauge 52 that measures the fluid pressure in the piping 91 . The opening and closing control of the first chemical solution inlet valve 51 is performed by, for example, a control device not shown.

同樣,藥液共用箱60設在連接第2藥液供給源30和第2藥液CLC箱130的CLC131的配管92上,且具有將第2藥液供給到配管92的第2藥液入口閥61、和對配管92內的流體壓力進行計測的壓力計62。第2藥液入口閥61由例如未圖示的控制裝置進行開閉控制。 Similarly, the chemical solution common tank 60 is provided on the piping 92 connecting the second chemical solution supply source 30 and the CLC 131 of the second chemical solution CLC tank 130 , and has a second chemical solution inlet valve for supplying the second chemical solution to the piping 92 . 61 , and a pressure gauge 62 for measuring the fluid pressure in the piping 92 . The opening and closing of the second chemical solution inlet valve 61 is controlled by, for example, a control device not shown.

藥液供給裝置100具有一端與DIW供給源10連接、另一端與清洗裝置200的DIW清洗部210連接的DIW供給配管81。DIW供給配管81設有:DIW供給閥86;DIW壓力調節器87;以及DIW壓力計88。DIW供給閥86通過被開閉而對DIW從DIW供給源10向DIW供給配管81的供給進行控制。DIW壓力調節器87對DIW從DIW供給配管81向DIW清洗部210的供給壓力進行調節。DIW壓力計88對通過DIW供給配管81內部的DIW的壓力進行計測。 The chemical solution supply device 100 has a DIW supply pipe 81 whose one end is connected to the DIW supply source 10 and the other end is connected to the DIW cleaning unit 210 of the cleaning device 200 . The DIW supply piping 81 is provided with: a DIW supply valve 86 ; a DIW pressure regulator 87 ; and a DIW pressure gauge 88 . The DIW supply valve 86 is opened and closed to control the supply of DIW from the DIW supply source 10 to the DIW supply pipe 81 . The DIW pressure regulator 87 adjusts the supply pressure of DIW from the DIW supply pipe 81 to the DIW cleaning unit 210 . The DIW pressure gauge 88 measures the pressure of DIW passing through the inside of the DIW supply pipe 81 .

在DIW供給配管81上的DIW供給閥86與DIW壓力調節器87之間連接DIW分歧配管82,該DIW分歧配管82的一端與DIWCLC箱110的CLC111連接。CLC111連接有:與第1直列式混合器72流體連通的第1DIW配管83;以及與第2直列式混合器73流體連通的第2DIW配管84。第1DIW供給閥112設在第1DIW配管83上,且在將DIW供給到第1直列式混合器72的情況下而被開閉控制。第2DIW供給閥113設在第2DIW配管84上,且在將DIW供給到第2直列式混合器73的情況下而被開閉控制。 A DIW branch pipe 82 is connected between the DIW supply valve 86 on the DIW supply pipe 81 and the DIW pressure regulator 87 , and one end of the DIW branch pipe 82 is connected to the CLC 111 of the DIWCLC tank 110 . The CLC 111 is connected to the first DIW piping 83 which is in fluid communication with the first inline mixer 72 and the second DIW piping 84 which is in fluid communication with the second inline mixer 73 . The first DIW supply valve 112 is provided in the first DIW piping 83 , and is controlled to open and close when supplying DIW to the first inline mixer 72 . The second DIW supply valve 113 is provided in the second DIW piping 84 , and is controlled to open and close when DIW is supplied to the second inline mixer 73 .

在第1藥液CLC箱120的CLC121上連接與第1直列式混合器72流體連通的第1藥液配管93。第1藥液供給閥122設在第1藥液配管93上,且在將第1藥液供給到第1直列式混合器72的情況下而被開閉控制。在第1直列式混合器72上連接第1清洗藥液配管96,該第1清洗藥液配管96的一端與藥液清洗部220連接。 To the CLC 121 of the first chemical solution CLC tank 120 is connected the first chemical solution piping 93 which is in fluid communication with the first inline mixer 72 . The first chemical solution supply valve 122 is provided in the first chemical solution pipe 93 , and is controlled to open and close when the first chemical solution is supplied to the first inline mixer 72 . A first cleaning chemical solution pipe 96 is connected to the first in-line mixer 72 , and one end of the first cleaning chemical solution pipe 96 is connected to the chemical solution cleaning unit 220 .

在第2藥液CLC箱130的CLC131上連接與第2直列式混合器73流體連通的第2藥液配管94。第2藥液供給閥132設在第2藥液配管94上,且在將第2藥液供給到第2直列式混合器73的情況下而被開閉控制。在第2直列式混合器73上連接第2清洗藥液配管97,該第2清洗藥液配管97的一端與藥液清洗部220連接。 To the CLC 131 of the second chemical solution CLC tank 130 is connected a second chemical solution pipe 94 which is in fluid communication with the second inline mixer 73 . The second chemical solution supply valve 132 is provided in the second chemical solution pipe 94 , and is controlled to open and close when the second chemical solution is supplied to the second in-line mixer 73 . A second cleaning chemical solution pipe 97 is connected to the second in-line mixer 73 , and one end of the second cleaning chemical solution pipe 97 is connected to the chemical solution cleaning unit 220 .

DIWCLC箱110的CLC111、第1藥液CLC箱120的CLC121及第2藥液CLC箱130的CLC131構成為,可從未圖示的控制裝置接收表示規定的流量值的信號。基於該流量值,控制CLC111、CLC121及CLC131的內部控制閥的開度。 The CLC 111 of the DIWCLC tank 110, the CLC 121 of the first chemical solution CLC tank 120, and the CLC 131 of the second chemical solution CLC tank 130 are configured to receive a signal representing a predetermined flow rate value from a control device not shown. Based on this flow rate value, the opening degrees of the internal control valves of CLC111, CLC121, and CLC131 are controlled.

下面,說明圖2所示的藥液供給裝置100中的藥液供給處理。當將第1清洗藥液供給到清洗裝置200的藥液清洗部220時,首先,藥液共用箱50 的第1藥液入口閥51打開。由第1藥液CLC箱120的CLC121調節第1藥液的流量,規定流量的第1藥液從第1藥液供給源20被供給到第1直列式混合器72。 Next, the chemical solution supply process in the chemical solution supply device 100 shown in FIG. 2 will be described. When supplying the first cleaning chemical solution to the chemical solution cleaning unit 220 of the cleaning device 200 , first, the chemical solution common tank 50 The first chemical solution inlet valve 51 is opened. The flow rate of the first chemical solution is adjusted by the CLC 121 of the first chemical solution CLC tank 120 , and the first chemical solution at a predetermined flow rate is supplied from the first chemical solution supply source 20 to the first inline mixer 72 .

當DIW供給配管81上的DIW供給閥86打開時,DIW就從DIW供給源10被供給到DIWCLC箱110的CLC111。通過打開第1DIW供給閥112,從而DIW從DIWCLC箱110被供給到第1直列式混合器72。此時,預先關閉第2DIW供給閥113。 When the DIW supply valve 86 on the DIW supply pipe 81 is opened, DIW is supplied from the DIW supply source 10 to the CLC 111 of the DIWCLC tank 110 . By opening the first DIW supply valve 112 , DIW is supplied from the DIWCLC tank 110 to the first inline mixer 72 . At this time, the second DIW supply valve 113 is closed in advance.

DIW與供給到第1直列式混合器72的第1藥液混合。由此生成的第1清洗藥液經由第1清洗藥液配管96而被供給到藥液清洗部220。 DIW is mixed with the first chemical solution supplied to the first inline mixer 72 . The first cleaning chemical solution thus produced is supplied to the chemical solution cleaning unit 220 via the first cleaning chemical solution piping 96 .

在第1清洗藥液供給到藥液清洗部220的期間,停止第2藥液向第2直列式混合器73的供給。具體來說,藥液共用箱60的第2藥液入口閥61及/或第2藥液CLC箱130的第2藥液供給閥132被關閉。由此,第2清洗藥液不供給到藥液清洗部220,僅第1清洗藥液供給到藥液清洗部220。 While the first cleaning chemical is supplied to the chemical cleaning unit 220 , the supply of the second chemical to the second in-line mixer 73 is stopped. Specifically, the second chemical liquid inlet valve 61 of the chemical liquid common tank 60 and/or the second chemical liquid supply valve 132 of the second chemical liquid CLC tank 130 are closed. Accordingly, the second cleaning chemical solution is not supplied to the chemical solution cleaning unit 220 , and only the first cleaning chemical solution is supplied to the chemical solution cleaning unit 220 .

在本實施方式的藥液供給裝置100中,可交替供給第1清洗藥液和第2清洗藥液。當從第1清洗藥液切換到第2清洗藥液時,將DIWCLC箱110的第1DIW供給閥112關閉,並打開第2DIW供給閥113。由此,DIW從DIWCLC箱110被供給到第2直列式混合器73。接著,將藥液共用箱60的第2藥液入口閥61打開。由第2藥液CLC箱130的CLC131調節第2藥液的流量,且規定流量的第2藥液從第2藥液供給源30被供給到第2直列式混合器73。DIW與供給到第2直列式混合器73的第2藥液混合。由此生成的第2清洗藥液通過第2清洗藥液配管97而被供給到藥液清洗部220。 In the chemical solution supply device 100 of the present embodiment, the first cleaning chemical solution and the second cleaning chemical solution can be alternately supplied. When switching from the first cleaning chemical solution to the second cleaning chemical solution, the first DIW supply valve 112 of the DIWCLC tank 110 is closed, and the second DIW supply valve 113 is opened. Thereby, DIW is supplied from the DIWCLC tank 110 to the second inline mixer 73 . Next, the second chemical solution inlet valve 61 of the chemical solution common tank 60 is opened. The flow rate of the second chemical solution is adjusted by the CLC 131 of the second chemical solution CLC tank 130 , and a predetermined flow rate of the second chemical solution is supplied from the second chemical solution supply source 30 to the second inline mixer 73 . The DIW is mixed with the second chemical solution supplied to the second in-line mixer 73 . The second cleaning chemical solution thus produced is supplied to the chemical solution cleaning unit 220 through the second cleaning chemical solution piping 97 .

在第2清洗藥液供給到藥液清洗部220的期間,停止第1藥液向第1直列式混合器72的供給。具體來說,藥液共用箱50的第1藥液入口閥51及/或第1藥液CLC箱120的第1藥液供給閥122被關閉。由此,第1清洗藥液不供給到藥液清洗部220,僅第2清洗藥液供給到藥液清洗部220。 While the second cleaning chemical is supplied to the chemical cleaning unit 220 , the supply of the first chemical to the first inline mixer 72 is stopped. Specifically, the first chemical solution inlet valve 51 of the chemical solution common tank 50 and/or the first chemical solution supply valve 122 of the first chemical solution CLC tank 120 are closed. Accordingly, the first cleaning chemical solution is not supplied to the chemical solution cleaning unit 220 , and only the second cleaning chemical solution is supplied to the chemical solution cleaning unit 220 .

另外,當從第2清洗藥液切換到第1清洗藥液時,DIWCLC箱110的第2DIW供給閥113被關閉,第1DIW供給閥112被打開。另外,藥液共用箱50的第1藥液入口閥51被打開,第1藥液CLC箱120的第1藥液供給閥122被打開。另外,藥液共用箱60的第2藥液入口閥61及/或第2藥液供給閥132被關閉。由此,第2清洗藥液不供給到藥液清洗部220,僅第1清洗藥液供給到藥液清洗部220。 In addition, when switching from the second cleaning chemical solution to the first cleaning chemical solution, the second DIW supply valve 113 of the DIWCLC tank 110 is closed, and the first DIW supply valve 112 is opened. In addition, the first chemical solution inlet valve 51 of the chemical solution common tank 50 is opened, and the first chemical solution supply valve 122 of the first chemical solution CLC tank 120 is opened. In addition, the second chemical solution inlet valve 61 and/or the second chemical solution supply valve 132 of the chemical solution common tank 60 are closed. Accordingly, the second cleaning chemical solution is not supplied to the chemical solution cleaning unit 220 , and only the first cleaning chemical solution is supplied to the chemical solution cleaning unit 220 .

另外,在本實施方式中,由第1藥液CLC箱120及第2藥液CLC箱130控制流量的第1藥液及第2藥液的流量範圍,例如分別是30ml/min以上、300ml/min以下。另外,由DIWCLC箱110控制流量的DIW的流量範圍,例如是200ml/min以上、2000ml/min以下。因此,第1藥液或第2藥液與DIW的稀釋比例是1:1以上、1:65以下。 In addition, in the present embodiment, the flow rate ranges of the first chemical liquid and the second chemical liquid whose flow rates are controlled by the first chemical liquid CLC tank 120 and the second chemical liquid CLC tank 130 are, for example, 30 ml/min or more and 300 ml/min, respectively. min or less. In addition, the flow rate range of DIW whose flow rate is controlled by the DIWCLC tank 110 is, for example, 200 ml/min or more and 2000 ml/min or less. Therefore, the dilution ratio of the first chemical solution or the second chemical solution and DIW is 1:1 or more and 1:65 or less.

如以上說明那樣,本實施方式的藥液供給裝置100具有DIWCLC箱110,該DIWCLC箱110對從DIW供給源10供給到第1直列式混合器72或第2直列式混合器73的DIW的流量進行控制。另外,藥液供給裝置100在第1直列式混合器72與第2直列式混合器73之間對DIW的供給目的地進行切換。因此,通過對供給到第1直列式混合器72及第2直列式混合器73的DIW的流量進行控制,可靈活地因應第1藥液及第2藥液的稀釋比例的變更。 As described above, the chemical solution supply device 100 of the present embodiment includes the DIWCLC tank 110 for the flow rate of DIW supplied from the DIW supply source 10 to the first inline mixer 72 or the second inline mixer 73 Take control. In addition, the chemical solution supply device 100 switches the supply destination of DIW between the first inline mixer 72 and the second inline mixer 73 . Therefore, by controlling the flow rates of DIW supplied to the first inline mixer 72 and the second inline mixer 73, it is possible to flexibly respond to changes in the dilution ratio of the first chemical solution and the second chemical solution.

在本實施方式中,由於可用共同的DIWCLC箱110進行第1藥液和第2藥液的稀釋,因此,不必像以往技術那樣設置兩個DIW的流量計,可抑制藥液供給裝置100的大型化。換言之,由於相比於以往技術可減少DIW的流量計,因此,因此可削減裝置成本。 In the present embodiment, since the dilution of the first chemical solution and the second chemical solution can be performed by the common DIWCLC tank 110, it is not necessary to provide two DIW flow meters as in the prior art, and the large size of the chemical solution supply device 100 can be suppressed. change. In other words, since the DIW flowmeter can be reduced as compared with the conventional technology, the device cost can be reduced.

在以往技術那樣用兩個DIW的流量計對第1藥液和第2藥液進行稀釋的情況下,由於兩個DIW的流量計的誤差(儀器誤差)不同,因此,即使設定相同的稀釋比例來稀釋第1藥液和第2藥液,也有可能因所述儀器誤差而不成 為相同的稀釋比例。相對於此,在本實施方式的藥液供給裝置100中,由於用共同的DIWCLC箱110對第1藥液和第2藥液進行稀釋,因此,可消除因DIWCLC箱110的儀器誤差所引起的第1藥液和第1藥液的稀釋比例的差異。 When diluting the first chemical solution and the second chemical solution with two DIW flowmeters as in the prior art, since the errors (instrument errors) of the two DIW flowmeters are different, even if the same dilution ratio is set to dilute the first liquid and the second liquid, it may not be possible due to the error of the instrument for the same dilution ratio. On the other hand, in the chemical solution supply device 100 of the present embodiment, since the first chemical solution and the second chemical solution are diluted by the common DIWCLC tank 110, the error caused by the instrument error of the DIWCLC tank 110 can be eliminated. The difference in the dilution ratio of the first chemical solution and the first chemical solution.

另外,在本實施方式的藥液供給裝置100中,第1清洗藥液供給到清洗裝置200的藥液清洗部200的期間,停止供給第2藥液,第2清洗藥液供給到藥液清洗部220的期間,停止供給第1藥液。因此,可防止鹼性藥液即第1藥液和酸性藥液即第2藥液在清洗裝置200的清洗中產生混合的現象,可防止因鹼性藥液和酸性藥液的混合所引起的有毒氣體的產生。 In addition, in the chemical solution supply device 100 of the present embodiment, while the first cleaning chemical solution is supplied to the chemical solution cleaning unit 200 of the cleaning device 200, the supply of the second chemical solution is stopped, and the second cleaning chemical solution is supplied to the chemical solution cleaning During the period of section 220, the supply of the first chemical solution is stopped. Therefore, it is possible to prevent the phenomenon in which the first chemical solution, which is an alkaline chemical solution, and the second chemical solution, which is an acidic solution, are mixed during the cleaning of the cleaning device 200, and the phenomenon caused by the mixing of the alkaline chemical solution and the acidic chemical solution can be prevented. Generation of toxic gases.

<第2實施方式> <Second Embodiment>

下面,說明本發明的第2實施方式的藥液供給裝置。圖3是本發明第2實施方式的藥液供給裝置100的藥液供給流程圖。另外,第2實施方式的藥液供給裝置100的概略前視圖,由於是與圖1所示的藥液供給裝置100的概略前視圖相同的,因此省略說明。 Next, a chemical solution supply device according to a second embodiment of the present invention will be described. FIG. 3 is a flow chart of the supply of the chemical solution by the chemical solution supply device 100 according to the second embodiment of the present invention. In addition, since the schematic front view of the chemical|medical solution supply apparatus 100 of 2nd Embodiment is the same as the schematic front view of the chemical|medical solution supply apparatus 100 shown in FIG. 1, description is abbreviate|omitted.

第2實施方式與第1實施方式相比,清洗裝置200分別各有兩個DIW清洗部和藥液清洗部,這一點不相同。相伴於此,藥液供給裝置100的DIWCLC箱110、第1藥液CLC箱120及第2藥液CLC箱130分別各有兩個CLC,這一點也與第1實施方式不同。其它的閥及藥液共用箱的數量、配管結構也與第1實施方式不同。下面,以不同於第1實施方式的部分為中心進行說明,對於與第1實施方式相同的結構,標上相同的符號而省略說明。 The second embodiment is different from the first embodiment in that the cleaning apparatus 200 has two DIW cleaning units and two chemical solution cleaning units, respectively. Along with this, the DIWCLC tank 110 , the first chemical liquid CLC tank 120 , and the second chemical liquid CLC tank 130 of the chemical liquid supply device 100 each have two CLCs, which is also different from the first embodiment. The number of other valves and the chemical solution common tank and the piping structure are also different from those of the first embodiment. Hereinafter, the parts different from those of the first embodiment will be mainly described, and the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

如圖3所示,藥液供給裝置100構成為,通過配管而與供給DIW用的DIW供給源10a流體連通。清洗裝置200具有:DIW清洗部210a,該DIW清洗部210a用DIW對由研磨裝置研磨後的半導體基板等清洗對象物進行清洗;以及藥液清洗部220a,該藥液清洗部220a用稀釋後的藥液(清洗藥液)對由研磨裝置研磨後的半導體基板等清洗對象物進行清洗。DIW清洗部210a與DIW清洗部 210相同地由例如超聲波水清洗部或其它的DIW清洗部等構成。藥液清洗部220a與藥液清洗部220相同地由例如輥型清洗部等構成。該DIW清洗部210a和藥液清洗部220a共存於同一的清洗槽230a內。 As shown in FIG. 3, the chemical|medical solution supply apparatus 100 is comprised so that it may fluidly communicate with the DIW supply source 10a for supplying DIW through piping. The cleaning apparatus 200 includes a DIW cleaning unit 210a that cleans a cleaning object such as a semiconductor substrate polished by the polishing apparatus with DIW, and a chemical cleaning unit 220a that uses diluted The chemical solution (cleaning chemical solution) cleans a cleaning object such as a semiconductor substrate polished by a polishing apparatus. DIW cleaning section 210a and DIW cleaning section 210 is similarly constituted by, for example, an ultrasonic water cleaning unit or another DIW cleaning unit. The chemical-solution cleaning unit 220a is constituted by, for example, a roll-type cleaning unit or the like similarly to the chemical-solution cleaning unit 220 . The DIW cleaning unit 210a and the chemical solution cleaning unit 220a coexist in the same cleaning tank 230a.

藥液供給裝置100具有:第1直列式混合器72a(第1混合部),該第1直列式混合器72a將第1藥液和DIW混合而生成第1清洗藥液;以及第2直列式混合器73a(第2混合部),該第2直列式混合器73a將第2藥液和DIW混合而生成第2清洗藥液。第1藥液CLC箱120構成為,對從第1藥液供給源20供給到第1直列式混合器72a的第1藥液的流量進行控制。第2藥液CLC箱130構成為,對從第2藥液供給源30供給到第2直列式混合器73a的第2藥液的流量進行控制。DIWCLC箱110構成為,對從DIW供給源10a供給到第1直列式混合器72a或第2直列式混合器73a的DIW的流量進行控制。 The chemical solution supply device 100 includes: a first in-line mixer 72a (first mixing part) that mixes the first chemical solution and DIW to generate the first cleaning chemical solution; and a second in-line type mixer 72a The mixer 73a (2nd mixing part) which mixes the 2nd chemical|medical solution and DIW, and this 2nd in-line mixer 73a produces|generates the 2nd cleaning chemical|medical solution. The first chemical solution CLC tank 120 is configured to control the flow rate of the first chemical solution supplied from the first chemical solution supply source 20 to the first in-line mixer 72a. The second chemical solution CLC tank 130 is configured to control the flow rate of the second chemical solution supplied from the second chemical solution supply source 30 to the second in-line mixer 73a. The DIWCLC tank 110 is configured to control the flow rate of DIW supplied from the DIW supply source 10a to the first inline mixer 72a or the second inline mixer 73a.

第1直列式混合器72a構成為,將所生成的第1清洗藥液供給到藥液清洗部220a。同樣,第2直列式混合器73a構成為,將所生成的第2清洗藥液供給到藥液清洗部220a。 The first in-line mixer 72a is configured to supply the generated first cleaning chemical to the chemical cleaning unit 220a. Similarly, the second in-line mixer 73a is configured to supply the generated second cleaning chemical to the chemical cleaning unit 220a.

DIWCLC箱110具有:第1DIW供給閥112a;第2DIW供給閥113a;以及CLC111a。第1DIW供給閥112a將稀釋用DIW從DIW供給源10a供給到第1直列式混合器72a。第2DIW供給閥113a將稀釋用DIW從DIW供給源10a供給到第2直列式混合器73a。CLC111a對供給到第1DIW供給閥112a及第2DIW供給閥113a的流量進行調節。CLC111a對流動於CLC111a的DIW的流量進行測定。CLC111a基於該測定結果而對CLC11a的內部控制閥的開度進行調節(反饋控制),以使在CLC11a內流動的DIW的流量成為所期望的流量。 The DIWCLC tank 110 includes: a first DIW supply valve 112a; a second DIW supply valve 113a; and a CLC 111a. The first DIW supply valve 112a supplies the DIW for dilution from the DIW supply source 10a to the first inline mixer 72a. The second DIW supply valve 113a supplies the DIW for dilution from the DIW supply source 10a to the second inline mixer 73a. The CLC 111a adjusts the flow rates supplied to the first DIW supply valve 112a and the second DIW supply valve 113a. CLC111a measures the flow rate of DIW flowing in CLC111a. The CLC 111a adjusts (feedback control) the opening degree of the internal control valve of the CLC 11a based on the measurement result so that the flow rate of the DIW flowing in the CLC 11a becomes a desired flow rate.

DIWCLC箱110通過關閉第2DIW供給閥113a並打開第1DIW供給閥112a而將DIW供給到第1直列式混合器72a。另一方面,DIWCLC箱110通過關閉第1DIW供給閥112a並打開第2DIW供給閥113a而將DIW供給到第2直列式混合 器73a。即,DIWCLC箱110、第1DIW供給閥112a及第2DIW供給閥113a,作為在第1直列式混合器72a與第2直列式混合器73a之間對DIW的供給目的地進行切換的稀釋水供給切換部發揮功能。 The DIWCLC tank 110 supplies DIW to the first inline mixer 72a by closing the second DIW supply valve 113a and opening the first DIW supply valve 112a. On the other hand, the DIWCLC tank 110 supplies DIW to the second in-line mixing by closing the first DIW supply valve 112a and opening the second DIW supply valve 113a device 73a. That is, the DIWCLC tank 110, the first DIW supply valve 112a, and the second DIW supply valve 113a serve as dilution water supply switching for switching the supply destination of DIW between the first inline mixer 72a and the second inline mixer 73a Department functions.

第1藥液CLC箱120具有:第1藥液供給閥122a,該第1藥液供給閥122a將第1藥液從第1藥液供給源20供給到第1直列式混合器72a;以及CLC121a,該CLC121a對流動於第1藥液供給閥122a的第1藥液的流量進行測定。CLC121a基於該測定結構而對CLC121a的內部控制閥的開度進行調節(反饋控制),以使在CLC121a內流動的第1藥液的流量成為所期望的流量。 The first chemical solution CLC tank 120 includes a first chemical solution supply valve 122a for supplying the first chemical solution from the first chemical solution supply source 20 to the first in-line mixer 72a, and a CLC 121a , the CLC 121a measures the flow rate of the first chemical solution flowing through the first chemical solution supply valve 122a. The CLC 121 a adjusts (feedback control) the opening degree of the internal control valve of the CLC 121 a based on this measurement structure so that the flow rate of the first chemical solution flowing in the CLC 121 a becomes a desired flow rate.

第2藥液CLC箱130具有:第2藥液供給閥132a,該第2藥液供給閥132a將第2藥液從第2藥液供給源30供給到第2直列式混合器73a;以及CLC131a,該CLC131a對流動於第2藥液供給閥132a的第2藥液的流量進行測定。CLC131a基於該測定結構而對CLC131a的內部控制閥的開度進行調節(反饋控制),以使在CLC131a內流動的第2藥液的流量成為所期望的流量。 The second chemical solution CLC tank 130 includes a second chemical solution supply valve 132a for supplying the second chemical solution from the second chemical solution supply source 30 to the second in-line mixer 73a, and a CLC 131a , the CLC 131a measures the flow rate of the second chemical solution flowing through the second chemical solution supply valve 132a. Based on this measurement structure, the CLC 131a adjusts (feedback control) the opening degree of the internal control valve of the CLC 131a so that the flow rate of the second chemical solution flowing in the CLC 131a becomes a desired flow rate.

另外,藥液供給裝置100具有藥液共用箱50a和藥液共用箱60a。藥液共用箱50a將來自第1藥液供給源20的第1藥液導入到第1藥液CLC箱120的CLC121a。藥液共用箱60a將來自第2藥液供給源30的第2藥液導入到第2藥液CLC箱130的CLC131a。 Moreover, the chemical|medical solution supply apparatus 100 has the chemical|medical solution common tank 50a and the chemical|medical solution common tank 60a. The chemical solution common tank 50 a introduces the first chemical solution from the first chemical solution supply source 20 to the CLC 121 a of the first chemical solution CLC tank 120 . The chemical solution common tank 60 a introduces the second chemical solution from the second chemical solution supply source 30 to the CLC 131 a of the second chemical solution CLC tank 130 .

藥液共用箱50a具有:第1藥液入口閥51a,該第1藥液入口閥51a設在連接第1藥液供給源20和第1藥液CLC箱120的CLC121a的配管91a上;以及壓力計52a,該壓力計52a對配管91a內的流體壓力進行計測。第1藥液入口閥51a由例如未圖示的控制裝置開閉控制,且將第1藥液供給到配管91a。 The chemical solution common tank 50a includes a first chemical solution inlet valve 51a provided on the piping 91a connecting the first chemical solution supply source 20 and the CLC 121a of the first chemical solution CLC tank 120, and a pressure The pressure gauge 52a measures the fluid pressure in the piping 91a. The first chemical solution inlet valve 51a is opened and closed by, for example, a control device not shown, and supplies the first chemical solution to the piping 91a.

同樣,藥液共用箱60a具有:第2藥液入口閥61a,該第2藥液入口閥61a設在連接第2藥液供給源30和第2藥液CLC箱130的CLC131a的配管92a上; 以及壓力計62a,該壓力計62a對配管92a內的流體壓力進行計測。第2藥液入口閥61a由例如未圖示的控制裝置開閉控制,且將第2藥液供給到配管92a。 Similarly, the chemical solution common tank 60a has a second chemical solution inlet valve 61a provided on the piping 92a connecting the second chemical solution supply source 30 and the CLC 131a of the second chemical solution CLC tank 130; And the pressure gauge 62a which measures the fluid pressure in the piping 92a. The second chemical solution inlet valve 61a is opened and closed by, for example, a control device not shown, and supplies the second chemical solution to the piping 92a.

藥液供給裝置100具有一端與DIW供給源10a連接、另一端與清洗裝置200的DIW清洗部310a連接的DIW供給配管81a。在DIW供給配管81a上設有:DIW供給閥86a;DIW壓力調節器87a;以及DIW壓力計88a。DIW供給閥86a通過被開閉而對DIW從DIW供給源10a向DIW供給配管81a的供給進行控制。DIW壓力調節器87a對DIW從DIW供給配管81a向DIW清洗部210a的供給壓力進行控制。DIW壓力計88a對通過DIW供給配管81a內部的DIW的壓力進行計測。 The chemical solution supply device 100 has a DIW supply pipe 81 a having one end connected to the DIW supply source 10 a and the other end connected to the DIW cleaning unit 310 a of the cleaning device 200 . The DIW supply piping 81a is provided with: a DIW supply valve 86a; a DIW pressure regulator 87a; and a DIW pressure gauge 88a. The DIW supply valve 86a is opened and closed to control the supply of DIW from the DIW supply source 10a to the DIW supply pipe 81a. The DIW pressure regulator 87a controls the supply pressure of DIW from the DIW supply pipe 81a to the DIW cleaning unit 210a. The DIW pressure gauge 88a measures the pressure of DIW passing through the inside of the DIW supply pipe 81a.

在DIW供給配管81a上的DIW供給閥86a與DIW壓力調節器87a之間連接DIW分歧配管82a,該分歧配管82a的一端與DIWCLC箱110的CLC111a連接。在CLC111a上連接有:與第1直列式混合器72a流體連通的第1DIW配管83a;和與第2直列式混合器73a流體連通的第2DIW配管84a。第1DIW供給閥112a設在第1DIW配管83a上,且在DIW供給到第1直列式混合器72a的情況下被開閉控制。第2DIW供給閥113a設在第2DIW配管84a上,且在DIW供給到第2直列式混合器73a的情況下被開閉控制。 A DIW branch pipe 82a is connected between the DIW supply valve 86a on the DIW supply pipe 81a and the DIW pressure regulator 87a, and one end of the branch pipe 82a is connected to the CLC 111a of the DIWCLC tank 110. Connected to the CLC 111a are: a first DIW pipe 83a that is in fluid communication with the first inline mixer 72a; and a second DIW pipe 84a that is in fluid communication with the second inline mixer 73a. The first DIW supply valve 112a is provided in the first DIW piping 83a, and is controlled to open and close when DIW is supplied to the first inline mixer 72a. The second DIW supply valve 113a is provided in the second DIW piping 84a, and is controlled to open and close when DIW is supplied to the second inline mixer 73a.

在第1藥液CLC箱120的CLC121a上連接與第1直列式混合器72a流體連通的第1藥液配管93a。第1藥液供給閥122a設在第1藥液配管93a上,且在第1藥液供給到第1直列式混合器72a的情況下被開閉控制。在第1直列式混合器72a上連接第1清洗藥液配管96a,該第1清洗藥液配管96a的一端與藥液清洗部220a連接。 To the CLC 121a of the first chemical solution CLC tank 120, a first chemical solution pipe 93a that is in fluid communication with the first inline mixer 72a is connected. The first chemical solution supply valve 122a is provided in the first chemical solution pipe 93a, and is controlled to open and close when the first chemical solution is supplied to the first in-line mixer 72a. A first cleaning chemical solution pipe 96a is connected to the first in-line mixer 72a, and one end of the first cleaning chemical solution pipe 96a is connected to the chemical solution cleaning unit 220a.

在第2藥液CLC箱130的CLC131a上連接與第2直列式混合器73a流體連通的第2藥液配管94a。第2藥液供給閥132a設在第2藥液配管94a上,且在第2藥液供給到第2直列式混合器73a的情況下被開閉控制。在第2直列式混合器73a 上連接第2清洗藥液配管97a,該第2清洗藥液配管97a的一端與藥液清洗部220a連接。 To the CLC 131a of the second chemical solution CLC tank 130, a second chemical solution pipe 94a that is in fluid communication with the second inline mixer 73a is connected. The second chemical solution supply valve 132a is provided in the second chemical solution pipe 94a, and is controlled to open and close when the second chemical solution is supplied to the second in-line mixer 73a. In the second inline mixer 73a A second cleaning chemical solution pipe 97a is connected to the top, and one end of the second cleaning chemical solution pipe 97a is connected to the chemical solution cleaning part 220a.

DIWCLC箱110的CLC111a、第1藥液CLC箱120的CLC121a及第2藥液CLC箱130的CLC131a構成為,可從未圖示的控制裝置接收表示規定的流量值的信號。基於該流量值,控制CLC111a、CLC121a及CLC131a的內部控制閥的開度。 The CLC 111a of the DIWCLC tank 110, the CLC 121a of the first chemical solution CLC tank 120, and the CLC 131a of the second chemical solution CLC tank 130 are configured to receive a signal representing a predetermined flow rate value from a control device not shown. Based on this flow rate value, the opening degrees of the internal control valves of CLC111a, CLC121a, and CLC131a are controlled.

下面,說明圖3所示的藥液供給裝置100中的藥液供給處理。在第2實施方式的藥液供給裝置100中,如第1實施方式中說明的那樣,構成為,可將第1清洗藥液或第2清洗藥液供給到藥液清洗部220,且也可將第1清洗藥液或第2清洗藥液供給到藥液清洗部220a。第1清洗藥液或第2清洗藥液供給到藥液清洗部220的處理,由於是與第1實施方式相同的,因此省略說明,對第1清洗藥液或第2清洗藥液供給到藥液清洗部220a的處理進行說明。 Next, the chemical solution supply process in the chemical solution supply device 100 shown in FIG. 3 will be described. In the chemical solution supply device 100 according to the second embodiment, as described in the first embodiment, the first cleaning chemical solution or the second cleaning chemical solution can be supplied to the chemical solution cleaning unit 220, and the chemical solution cleaning unit 220 may be The first cleaning chemical solution or the second cleaning chemical solution is supplied to the chemical solution cleaning unit 220a. The process of supplying the first cleaning chemical solution or the second cleaning chemical solution to the chemical solution cleaning unit 220 is the same as that of the first embodiment, so the description is omitted, and the first cleaning chemical solution or the second cleaning chemical solution is supplied to the chemical solution The processing of the liquid cleaning unit 220a will be described.

當將第1清洗藥液供給到清洗裝置200的藥液清洗部220a時,首先,藥液共用箱50a的第1藥液入口閥51a打開。由第1藥液CLC箱120的CLC121a調節第1藥液的流量,規定流量的第1藥液從第1藥液供給源20被供給到第1直列式混合器72a。 When the first cleaning chemical solution is supplied to the chemical solution cleaning unit 220a of the cleaning device 200, first, the first chemical solution inlet valve 51a of the chemical solution common tank 50a is opened. The flow rate of the first chemical solution is adjusted by the CLC 121 a of the first chemical solution CLC tank 120 , and the first chemical solution at a predetermined flow rate is supplied from the first chemical solution supply source 20 to the first inline mixer 72 a.

DIW供給配管81a上的DIW供給閥86a打開,DIW從DIW供給源10a被供給到DIWCLC箱110的CLC111a。通過打開第1DIW供給閥112a,DIW從DIWCLC箱110被供給到第1直列式混合器72a。此時,預先關閉第2DIW供給閥113a。 The DIW supply valve 86a on the DIW supply pipe 81a is opened, and DIW is supplied from the DIW supply source 10a to the CLC 111a of the DIWCLC tank 110. By opening the first DIW supply valve 112a, DIW is supplied from the DIWCLC tank 110 to the first inline mixer 72a. At this time, the second DIW supply valve 113a is closed in advance.

DIW與供給到第1直列式混合器72a的第1藥液混合。由此生成的第1清洗藥液經由第1清洗藥液配管96a而被供給到藥液清洗部220a。 DIW is mixed with the first chemical solution supplied to the first inline mixer 72a. The thus-produced first cleaning chemical solution is supplied to the chemical solution cleaning unit 220a via the first cleaning chemical solution piping 96a.

在第1清洗藥液供給到藥液清洗部220a的期間,停止第2藥液向第2直列式混合器73a的供給。具體來說,藥液共用箱60a的第2藥液入口閥61a及 /或第2藥液CLC箱130的第2藥液供給閥132a被關閉。由此,第2清洗藥液不供給到藥液清洗部220a,僅第1清洗藥液供給到藥液清洗部220a。 While the first cleaning chemical solution is being supplied to the chemical solution cleaning unit 220a, the supply of the second chemical solution to the second in-line mixer 73a is stopped. Specifically, the second chemical solution inlet valve 61a of the chemical solution common tank 60a and the /or the second chemical solution supply valve 132a of the second chemical solution CLC tank 130 is closed. As a result, the second cleaning chemical is not supplied to the chemical cleaning portion 220a, and only the first cleaning chemical is supplied to the chemical cleaning portion 220a.

在第2實施方式的藥液供給裝置100中,不僅對藥液清洗部220,而且對藥液清洗部22a也能夠交替供給第1清洗藥液和第2清洗藥液。當從第1清洗藥液切換到第2清洗藥液時,將DIWCLC箱110的第1DIW供給閥112a關閉,並打開第2DIW供給閥113a。由此,DIW從DIWCLC箱110被供給到第2直列式混合器73a。 In the chemical solution supply device 100 according to the second embodiment, not only the chemical solution cleaning unit 220 but also the chemical solution cleaning unit 22a can alternately supply the first cleaning chemical solution and the second cleaning chemical solution. When switching from the first cleaning chemical solution to the second cleaning chemical solution, the first DIW supply valve 112a of the DIWCLC tank 110 is closed, and the second DIW supply valve 113a is opened. Thereby, DIW is supplied from the DIWCLC tank 110 to the 2nd in-line mixer 73a.

另外,藥液共用箱60a的第2藥液入口閥61a打開。由第2藥液CLC箱130的CLC131a調節第2藥液的流量,且規定流量的第2藥液從第2藥液供給源30被供給到第2直列式混合器73a。DIW與供給到第2直列式混合器73a的第2藥液混合。由此生成的第2清洗藥液經由第2清洗藥液配管97a而被供給到藥液清洗部220a。 In addition, the second chemical liquid inlet valve 61a of the chemical liquid common tank 60a is opened. The flow rate of the second chemical liquid is adjusted by the CLC 131 a of the second chemical liquid CLC tank 130 , and the second chemical liquid at a predetermined flow rate is supplied from the second chemical liquid supply source 30 to the second inline mixer 73 a. DIW is mixed with the second chemical solution supplied to the second inline mixer 73a. The second cleaning chemical solution thus produced is supplied to the chemical solution cleaning unit 220a via the second cleaning chemical solution piping 97a.

在第2清洗藥液供給到藥液清洗部220a的期間,停止第1藥液向第1直列式混合器72a的供給。具體來說,藥液共用箱50a的第1藥液入口閥51a及/或第1藥液CLC箱120的第1藥液供給閥122a被關閉。由此,第1清洗藥液不供給到藥液清洗部220a,僅第2清洗藥液供給到藥液清洗部220a。 While the second cleaning chemical solution is being supplied to the chemical solution cleaning unit 220a, the supply of the first chemical solution to the first inline mixer 72a is stopped. Specifically, the first chemical solution inlet valve 51a of the chemical solution common tank 50a and/or the first chemical solution supply valve 122a of the first chemical solution CLC tank 120 are closed. As a result, the first cleaning chemical is not supplied to the chemical cleaning portion 220a, and only the second cleaning chemical is supplied to the chemical cleaning portion 220a.

另外,當從第2清洗藥液切換到第1清洗藥液時,DIWCLC箱110的第2DIW供給閥113a被關閉,第1DIW供給閥112a被打開。另外,藥液共用箱50a的第1藥液入口閥51a被打開,第1藥液CLC箱120的第1藥液供給閥122a被打開。另外,藥液共用箱60a的第2藥液入口閥61a及/或第2藥液供給閥132a被關閉。由此,第2清洗藥液不供給到藥液清洗部220a,僅第1清洗藥液供給到藥液清洗部220a。 In addition, when switching from the second cleaning chemical solution to the first cleaning chemical solution, the second DIW supply valve 113a of the DIWCLC tank 110 is closed, and the first DIW supply valve 112a is opened. Moreover, the 1st chemical|medical solution inlet valve 51a of the chemical|medical solution common tank 50a is opened, and the 1st chemical|medical solution supply valve 122a of the 1st chemical|medical solution CLC tank 120 is opened. Moreover, the 2nd chemical|medical solution inlet valve 61a and/or the 2nd chemical|medical solution supply valve 132a of the chemical|medical solution common tank 60a are closed. As a result, the second cleaning chemical is not supplied to the chemical cleaning portion 220a, and only the first cleaning chemical is supplied to the chemical cleaning portion 220a.

另外,在本實施方式中,由第1藥液CLC箱120的CLC121、121a及第2藥液CLC箱130的CLC131、131a控制流量的第1藥液及第2藥液的流量範 圍,例如分別是30ml/min以上、300ml/min以下。另外,由DIWCLC箱110的CLC111、111a控制流量的DIW的流量範圍,例如分別是200ml/min以上、2000ml/min以下。因此,第1藥液或第2藥液與DIW的稀釋比例是1:1以上、1:65以下。 In addition, in the present embodiment, the flow rate range of the first chemical liquid and the second chemical liquid whose flow is controlled by the CLCs 121 and 121a of the first chemical liquid CLC tank 120 and the CLCs 131 and 131a of the second chemical liquid CLC tank 130 The circumferences are, for example, 30 ml/min or more and 300 ml/min or less, respectively. In addition, the flow rate range of the DIW whose flow rate is controlled by the CLCs 111 and 111a of the DIWCLC box 110 is, for example, 200 ml/min or more and 2000 ml/min or less, respectively. Therefore, the dilution ratio of the first chemical solution or the second chemical solution and DIW is 1:1 or more and 1:65 or less.

第2實施方式的藥液供給裝置100具有與第1實施方式的藥液供給裝置100相同的優點。除此之外,第2實施方式的藥液供給裝置100可對兩個藥液清洗部220、220a交替供給第1清洗藥液和第2清洗藥液。 The chemical solution supply device 100 of the second embodiment has the same advantages as those of the chemical solution supply device 100 of the first embodiment. In addition, the chemical solution supply device 100 according to the second embodiment can alternately supply the first cleaning chemical solution and the second cleaning chemical solution to the two chemical solution cleaning units 220 and 220a.

在第2實施方式中,說明了將第1清洗藥液及第2清洗藥液供給到兩個藥液清洗部220、220a的結構,但並不限於此,也可構成為將第1清洗藥液及第2清洗藥液供給到三個以上的藥液清洗部。在該情況下,只要在DIWCLC箱110、第1藥液CLC箱120及第2藥液CLC箱130上增加與藥液清洗部對應數量的CLC即可。 In the second embodiment, the configuration in which the first cleaning chemical and the second cleaning chemical are supplied to the two chemical cleaning units 220 and 220a has been described, but the present invention is not limited to this, and the first cleaning chemical may be The liquid and the second cleaning chemical are supplied to the three or more chemical cleaning sections. In this case, it is sufficient to increase the number of CLCs corresponding to the chemical solution cleaning units to the DIWCLC tank 110 , the first chemical solution CLC tank 120 , and the second chemical solution CLC tank 130 .

另外,在第1實施方式及第2實施方式中,以第1藥液為鹼性藥液、以第2藥液為酸性藥液進行了說明,但也可以與此相反地將第1藥液作為酸性藥液,而將第2藥液作為鹼性藥液。 In addition, in the first and second embodiments, the first chemical liquid is described as the alkaline chemical liquid and the second chemical liquid is used as the acidic chemical liquid, but the first chemical liquid may be used conversely. As the acidic chemical solution, the second chemical solution was used as the alkaline chemical solution.

<第3實施方式> <Third Embodiment>

下面,說明本發明的第3實施方式的清洗單元。圖4是表示第3實施方式的清洗單元所具有的藥液供給裝置的概略側視圖。藥液供給裝置構成為,可將例如氫氟酸和氨等藥液供給到用於清洗CMP裝置各部分的清洗裝置。 Next, a cleaning unit according to a third embodiment of the present invention will be described. 4 is a schematic side view showing a chemical solution supply device included in a cleaning unit according to a third embodiment. The chemical solution supply device is configured to supply chemical solutions such as hydrofluoric acid and ammonia to the cleaning device for cleaning each part of the CMP apparatus.

如圖4所示,本實施方式的藥液供給裝置100具有:框架102;以及藥液稀釋箱140,該藥液稀釋箱140用DIW(稀釋水)對藥液進行稀釋,並用於供給稀釋後的藥液(清洗藥液)。在圖示的例子中,四個藥液稀釋箱140設於藥液供給裝置100,但這是一例子而已,根據清洗裝置的規格,也可適當變更藥液 稀釋箱140的數量。如圖示所示,藥液稀釋箱140被收納在框架102內。藥液稀釋箱140構成為,對來自後述的DIW供給源10的DIW和來自藥液供給源40的藥液進行混合,並可將清洗藥液供給到清洗裝置200(參照圖6)。雖未圖示,但藥液供給裝置100具有用於輸送DIW或藥液的配管、閥和壓力計等。在圖6中詳細說明它們。 As shown in FIG. 4 , the chemical solution supply device 100 of the present embodiment includes: a frame 102; liquid medicine (cleaning liquid medicine). In the illustrated example, four chemical solution dilution tanks 140 are provided in the chemical solution supply device 100, but this is only an example, and the chemical solution may be appropriately changed according to the specifications of the cleaning device Number of dilution tanks 140. As shown in the figure, the chemical solution dilution tank 140 is accommodated in the frame 102 . The chemical solution dilution tank 140 is configured to mix the DIW from the DIW supply source 10 described later and the chemical solution from the chemical solution supply source 40 to supply the cleaning chemical solution to the cleaning device 200 (see FIG. 6 ). Although not shown, the chemical solution supply device 100 includes piping, a valve, a pressure gauge, and the like for feeding DIW or a chemical solution. They are detailed in FIG. 6 .

圖5是表示第3實施方式的清洗單元所具有的清洗裝置的概略立體圖。清洗裝置是使用從圖4所示的藥液供給裝置100供給的清洗藥液來對半導體基板及CMP裝置各部分進行清洗用的裝置。 5 is a schematic perspective view showing a cleaning device included in a cleaning unit according to a third embodiment. The cleaning apparatus is an apparatus for cleaning the semiconductor substrate and each part of the CMP apparatus using the cleaning chemical solution supplied from the chemical solution supply device 100 shown in FIG. 4 .

如圖5所示,清洗裝置200具有:框架201;藥液清洗部220,該藥液清洗部220用清洗藥液對半導體基板等進行清洗;以及複數個藥液供給箱250,該複數個藥液供給箱250將清洗藥液供給到藥液清洗部220。在圖示的例子中,清洗裝置200例示了四個藥液清洗部220、和兩個藥液供給箱250,但這是一例子而已,根據清洗裝置200的規格也可適當變更它們的數量。 As shown in FIG. 5 , the cleaning apparatus 200 includes: a frame 201; a chemical cleaning unit 220 for cleaning a semiconductor substrate and the like with a cleaning chemical; and a plurality of chemical supply tanks 250 for cleaning The liquid supply tank 250 supplies the cleaning chemical to the chemical cleaning unit 220 . In the illustrated example, the cleaning device 200 illustrates four chemical solution cleaning units 220 and two chemical solution supply tanks 250 , but this is only an example, and the number may be appropriately changed according to the specifications of the cleaning device 200 .

雖未圖示,但清洗裝置200具有用於輸送DIW或藥液的配管、閥和壓力計等。在圖6中詳細說明它們。藥液供給箱250具有流量表(flow meter),用於測定供給到藥液清洗部220的清洗藥液的流量(參照圖6)。作為該流量表,以往使用了根據流體的差壓來測定流量的孔板流量計。但是,近年來,開發了可測定清洗藥液的流量的超聲波流量計。超聲波流量計與孔板流量計相比,由於流量的測定範圍寬大,因此在本實施方式中,作為藥液供給箱250所具有的流量表,採用超聲波流量計。 Although not shown, the cleaning apparatus 200 includes piping, a valve, a pressure gauge, and the like for conveying DIW or a chemical solution. They are detailed in FIG. 6 . The chemical solution supply tank 250 has a flow meter for measuring the flow rate of the cleaning chemical solution supplied to the chemical solution cleaning unit 220 (see FIG. 6 ). As this flow meter, an orifice flow meter that measures the flow rate based on the differential pressure of the fluid has been conventionally used. However, in recent years, ultrasonic flowmeters that can measure the flow rate of cleaning chemicals have been developed. Compared with the orifice flowmeter, the ultrasonic flowmeter has a wider measurement range of the flow rate. Therefore, in the present embodiment, an ultrasonic flowmeter is used as the flowmeter included in the chemical solution supply tank 250 .

另一方面,超聲波流量計基於在配管內傳送的超聲波來測定流量,因此,當配管內存在氣泡時,超聲波會產生散射,難以進行正確的測定。因此,在本實施方式中,將藥液供給箱250所具有的流量表的位置設置得比清 洗藥液供給到藥液清洗部220的噴嘴的位置低。由此,流量表的配管內的氣泡容易向噴嘴移動,抑制配管內的氣泡滯留在流量表內的現象。 On the other hand, the ultrasonic flowmeter measures the flow rate based on the ultrasonic waves propagating in the piping. Therefore, when air bubbles are present in the piping, the ultrasonic waves are scattered, and it is difficult to perform accurate measurement. Therefore, in the present embodiment, the position of the flow meter included in the chemical solution supply tank 250 is set to be clearer The position of the nozzle through which the chemical solution is supplied to the chemical solution cleaning unit 220 is low. Thereby, the air bubbles in the piping of the flow meter are easily moved to the nozzle, and the phenomenon that the air bubbles in the piping remain in the flow meter is suppressed.

另外,在本實施方式中,流量表構成為,通過藥液供給箱250所具有的流量表的清洗藥液的流動方向朝向鉛垂方向。另外,流量表構成為,通過流量表的清洗藥液從下向上流動。由此,由於流量表的配管內的氣泡向上方移動,因此,進一步抑制配管內的氣泡滯留在流量表內的現象。 In addition, in the present embodiment, the flow meter is configured such that the flow direction of the cleaning chemical solution passing through the flow meter provided in the chemical solution supply tank 250 faces the vertical direction. In addition, the flow meter is configured so that the cleaning chemical liquid passing through the flow meter flows upward from the bottom. Thereby, since the air bubbles in the piping of the flow meter move upward, the phenomenon that the air bubbles in the piping remain in the flow meter is further suppressed.

接著,說明本實施方式的清洗單元。圖6是第3實施方式的清洗單元的概略圖。如圖示所示,清洗單元具有:圖4所示的藥液供給裝置100(相當於清洗藥液供給裝置的一例子);以及圖5所示的清洗裝置200(相當於基板清洗裝置的一例子)。另外,在圖6中,例示了圖4所示的四個藥液稀釋箱140中的一個,並例示了圖5所示的兩個藥液供給箱250中的一個及四個藥液清洗部220中的一個。 Next, the cleaning unit of the present embodiment will be described. 6 is a schematic diagram of a cleaning unit according to a third embodiment. As shown in the figure, the cleaning unit includes: a chemical solution supply device 100 shown in FIG. 4 (corresponding to an example of a cleaning chemical solution supply device); and a cleaning device 200 shown in FIG. 5 (corresponding to an example of a substrate cleaning device) example). In addition, in FIG. 6, one of the four chemical solution dilution tanks 140 shown in FIG. 4 is exemplified, and one of the two chemical solution supply tanks 250 shown in FIG. one of 220.

藥液供給裝置100構成為,分別經由配管而使用於供給DIW的DIW供給源10與用於供給例如氫氟酸或氨等藥液的藥液供給源40流體連通。另外,藥液供給裝置100構成為與清洗裝置200流體連通。具體而言,藥液供給裝置100以能夠將DIW及稀釋後的藥液供給到清洗裝置200的方式與清洗裝置200流體連通。 The chemical solution supply device 100 is configured such that a DIW supply source 10 for supplying DIW and a chemical solution supply source 40 for supplying a chemical solution such as hydrofluoric acid or ammonia are in fluid communication with each other via pipes. In addition, the chemical solution supply device 100 is configured to be in fluid communication with the cleaning device 200 . Specifically, the chemical solution supply device 100 is in fluid communication with the cleaning device 200 so that the DIW and the diluted chemical solution can be supplied to the cleaning device 200 .

清洗裝置200具有:DIW清洗部210,該DIW清洗部210使用DIW清洗對象物;以及藥液清洗部220,該藥液清洗部220使用稀釋後的藥液(清洗藥液)而對清洗對象物進行清洗。DIW清洗部210由例如超聲波水清洗部或其它的DIW清洗部等構成,用DIW對由CMP裝置研磨後的半導體基板等的清洗對象物即CMP裝置的各部分進行清洗。藥液清洗部220由例如輥型清洗部或筆型清洗部構成,對由CMP裝置研磨後的半導體基板等的清洗對象物進行清洗。 The cleaning apparatus 200 includes a DIW cleaning unit 210 that cleans an object using DIW, and a chemical solution cleaning unit 220 that uses a diluted chemical solution (cleaning chemical solution) for cleaning the object wash. The DIW cleaning unit 210 includes, for example, an ultrasonic water cleaning unit or another DIW cleaning unit, and uses DIW to clean each part of the CMP apparatus, which is a cleaning object such as a semiconductor substrate polished by the CMP apparatus. The chemical cleaning unit 220 is constituted by, for example, a roll-shaped cleaning unit or a pen-shaped cleaning unit, and cleans a cleaning object such as a semiconductor substrate polished by a CMP apparatus.

藥液供給裝置100具有藥液稀釋箱140,該藥液稀釋箱140用DIW(稀釋水)對藥液進行稀釋,且用於將稀釋後的藥液(清洗藥液)供給到清洗裝置200的藥液清洗部220。 The chemical solution supply device 100 has a chemical solution dilution tank 140 for diluting the chemical solution with DIW (dilution water) and for supplying the diluted chemical solution (cleaning chemical solution) to the cleaning device 200. The chemical solution cleaning unit 220 .

藥液稀釋箱140具有:直列式混合器115(相當於混合部的一例子);DIWCLC111c(相當於稀釋水流量控制部的一例子);以及藥液CLC113c(相當於藥液流量控制部的一例子)。直列式混合器115將藥液和DIW混合而生成清洗藥液。DIWCLC111c對從DIW供給源10供給到直列式混合器115的DIW的流量進行調節。藥液CLC113c對從藥液供給源40供給到直列式混合器115的藥液的流量進行調節。直列式混合器115構成為,將所生成的清洗藥液供給到藥液清洗部220。 The chemical solution dilution tank 140 includes: an inline mixer 115 (corresponding to an example of a mixing section); DIWCLC 111c (corresponding to an example of a dilution water flow control section); and a chemical liquid CLC 113c (corresponding to an example of a chemical liquid flow control section) example). The in-line mixer 115 mixes the chemical solution and DIW to generate the cleaning chemical solution. The DIWCLC 111c adjusts the flow rate of DIW supplied from the DIW supply source 10 to the inline mixer 115 . The chemical liquid CLC 113c adjusts the flow rate of the chemical liquid supplied from the chemical liquid supply source 40 to the in-line mixer 115 . The in-line mixer 115 is configured to supply the generated cleaning chemical to the chemical cleaning unit 220 .

藥液稀釋箱140還具有DIW供給閥112c,該DIW供給閥112c用於將稀釋用DIW從DIW供給源10供給到直列式混合器115。DIWCLC111c包含超聲波流量計(相當於第3超聲波流量計的一例子),用於測定流動於DIWCLC111c的DIW的流量。DIWCLC111c基於流量的測定結果而對內部的控制閥的開度進行調節(反饋控制),以使在DIWCLC111c內流動的DIW的流量成為所期望的流量。 The chemical solution dilution tank 140 further has a DIW supply valve 112 c for supplying DIW for dilution from the DIW supply source 10 to the inline mixer 115 . The DIWCLC 111c includes an ultrasonic flowmeter (corresponding to an example of the third ultrasonic flowmeter), and measures the flow rate of the DIW flowing in the DIWCLC 111c. The DIWCLC 111c adjusts (feedback control) the opening degree of the internal control valve based on the measurement result of the flow rate so that the flow rate of DIW flowing in the DIWCLC 111c becomes a desired flow rate.

藥液稀釋箱140還具有藥液供給閥114c,該藥液供給閥114c用於將藥液從藥液供給源40供給到直列式混合器115。藥液CLC113c包含超聲波流量計(相當於第2超聲波流量計的一例子),用於測定流動於藥液CLC113c的藥液的流量。藥液CLC113c基於流量的測定結果而對內部的控制閥的開度進行調節(反饋控制),以使在藥液CLC113c內流動的藥液的流量成為所期望的流量。 The chemical solution dilution tank 140 further includes a chemical solution supply valve 114 c for supplying the chemical solution from the chemical solution supply source 40 to the in-line mixer 115 . The chemical liquid CLC113c includes an ultrasonic flowmeter (corresponding to an example of the second ultrasonic flowmeter), and measures the flow rate of the chemical liquid flowing in the chemical liquid CLC113c. The chemical liquid CLC 113c adjusts (feedback control) the opening degree of the internal control valve based on the measurement result of the flow rate so that the flow rate of the chemical liquid flowing in the chemical liquid CLC 113c becomes a desired flow rate.

另外,藥液稀釋箱140具有:設在連接藥液供給源40和藥液CLC113c的配管91c上的藥液入口閥51c;及對配管91c內的流體壓力進行計測的壓力計52c。藥液入口閥51c通過例如未圖示的控制裝置而被開閉控制。 In addition, the chemical solution dilution tank 140 includes a chemical solution inlet valve 51c provided on the piping 91c connecting the chemical solution supply source 40 and the chemical solution CLC 113c, and a pressure gauge 52c for measuring the fluid pressure in the piping 91c. The chemical solution inlet valve 51c is opened and closed by, for example, a control device not shown.

藥液供給裝置100具有DIW供給配管81b,該供給配管81b的一端與DIW供給源10連接,另一端與清洗裝置200的DIW清洗部210連接。在DIW供給配管81b上設有DIW供給閥86b、DIW壓力調節器87b和DIW壓力計88b。通過DIW供給閥86b被開閉,從而控制DIW從DIW供給源10向DIW供給配管81b的供給。DIW壓力調節器87b對DIW從DIW供給配管81b向DIW清洗部210的供給壓力進行調節。DIW壓力計88b對DIW供給配管81b的內部的壓力進行計測。 The chemical solution supply device 100 includes a DIW supply pipe 81b, one end of which is connected to the DIW supply source 10, and the other end is connected to the DIW cleaning unit 210 of the cleaning device 200. The DIW supply pipe 81b is provided with a DIW supply valve 86b, a DIW pressure regulator 87b, and a DIW pressure gauge 88b. When the DIW supply valve 86b is opened and closed, the supply of DIW from the DIW supply source 10 to the DIW supply pipe 81b is controlled. The DIW pressure regulator 87b adjusts the supply pressure of DIW from the DIW supply pipe 81b to the DIW cleaning unit 210 . The DIW pressure gauge 88b measures the pressure inside the DIW supply pipe 81b.

DIW供給配管81b上的DIW供給閥86b與DIW壓力調節器87b之間連接DIW分歧配管82c,該分歧配管82c的一端與DIWCLC111c連接。在DIWCLC111c上連接與直列式混合器115流體連通的DIW配管83c。DIW供給閥112c設在DIW配管83c上,且在將DIW供給到直列式混合器115的情況下被開閉控制。 A DIW branch pipe 82c is connected between the DIW supply valve 86b on the DIW supply pipe 81b and the DIW pressure regulator 87b, and one end of the branch pipe 82c is connected to the DIWCLC 111c. The DIW piping 83c which is in fluid communication with the inline mixer 115 is connected to the DIWCLC 111c. The DIW supply valve 112c is provided in the DIW piping 83c, and is controlled to open and close when supplying DIW to the inline mixer 115 .

在藥液稀釋箱140的藥液CLC113c上連接與直列式混合器115流體連通的藥液配管84c。藥液供給閥114c設在藥液配管84c上,將藥液供給到藥液配管84c內。在直列式混合器115上連接清洗藥液配管96b,該清洗藥液配管96b的一端與清洗裝置200連接。 To the chemical liquid CLC 113c of the chemical liquid dilution tank 140, a chemical liquid pipe 84c which is in fluid communication with the in-line mixer 115 is connected. The chemical solution supply valve 114c is provided in the chemical solution pipe 84c, and supplies the chemical solution into the chemical solution pipe 84c. A cleaning chemical solution pipe 96 b is connected to the inline mixer 115 , and one end of the cleaning chemical solution pipe 96 b is connected to the cleaning device 200 .

藥液稀釋箱140的DIWCLC111c及藥液CLC113c構成為,可從未圖示的控制裝置接收表示規定的流量值的信號。基於該流量值來控制DIWCLC111c及藥液CLC113c的內部控制閥的開度。 The DIWCLC 111c and the chemical solution CLC 113c of the chemical solution dilution tank 140 are configured to receive a signal indicating a predetermined flow rate value from a control device (not shown). The opening degrees of the internal control valves of the DIWCLC 111c and the chemical solution CLC 113c are controlled based on the flow rate value.

清洗裝置200的藥液清洗部220具有:上表面清洗部222,該上表面清洗部222將清洗藥液供給到研磨後的基板的上表面對其進行清洗;以及下表面清洗部223,該下表面清洗部223將清洗藥液供給到研磨後的基板的下表面對其進行清洗。除此之外,藥液清洗部220具有等待部221,該等待部221配置等待要由上表面清洗部222及下表面清洗部223進行清洗的基板。上表面清洗部222及下表面清洗部223作為對一張基板的上表面和下表面同時進行清洗的基板 清洗部發揮功能。等待部221將清洗藥液供給到等待中的基板,以防止等待中的基板產生氧化的現象。 The chemical solution cleaning unit 220 of the cleaning device 200 includes: an upper surface cleaning unit 222 that supplies cleaning chemical solution to the upper surface of the polished substrate to clean it; and a lower surface cleaning unit 223 that cleans the lower surface of the substrate. The surface cleaning unit 223 supplies cleaning chemicals to the lower surface of the polished substrate to clean it. In addition to this, the chemical solution cleaning unit 220 has a waiting unit 221 that arranges a substrate waiting to be cleaned by the upper surface cleaning unit 222 and the lower surface cleaning unit 223 . The upper surface cleaning unit 222 and the lower surface cleaning unit 223 serve as substrates for simultaneously cleaning the upper surface and the lower surface of one substrate The cleaning section functions. The waiting unit 221 supplies cleaning chemicals to the waiting substrate to prevent oxidation of the waiting substrate.

清洗裝置200具有:清洗藥液供給配管231;清洗藥液供給配管232;以及清洗藥液供給配管233。清洗藥液供給配管231使清洗藥液配管96c和等待部221流體連通。清洗藥液供給配管232使清洗藥液配管96c和上表面清洗部222流體連通。清洗藥液供給配管233使清洗藥液配管96c和下表面清洗部223流體連通。 The cleaning device 200 includes: a cleaning chemical solution supply pipe 231 ; a cleaning chemical solution supply pipe 232 ; and a cleaning chemical solution supply pipe 233 . The cleaning chemical liquid supply pipe 231 fluidly communicates the cleaning chemical liquid pipe 96c and the waiting portion 221 . The cleaning chemical solution supply pipe 232 fluidly communicates the cleaning chemical solution pipe 96c and the upper surface cleaning unit 222 . The cleaning chemical solution supply pipe 233 fluidly communicates the cleaning chemical solution pipe 96c and the lower surface cleaning part 223 .

在清洗藥液供給配管231上設有:用於將清洗藥液供給到等待部221的清洗藥液供給閥224;以及對所供給的清洗藥液的流量進行計測的流量表225。在清洗藥液供給配管232上設有:用於將清洗藥液供給到上表面清洗部222的清洗藥液供給閥226;以及對所供給的清洗藥液的流量進行計測的流量表227。在清洗藥液供給配管233上設有:用於將清洗藥液供給到下表面清洗部223的清洗藥液供給閥228;以及對所供給的清洗藥液的流量進行計測的流量表229。流量表225、227、229及清洗藥液供給閥224、226、228被收納在藥液供給箱250內。清洗藥液供給閥224、清洗藥液供給閥226及清洗藥液供給閥228由例如未圖示的控制裝置進行開閉控制。 The cleaning chemical solution supply pipe 231 is provided with a cleaning chemical solution supply valve 224 for supplying the cleaning chemical solution to the waiting portion 221, and a flow meter 225 for measuring the flow rate of the supplied cleaning chemical solution. The cleaning chemical supply pipe 232 is provided with a cleaning chemical supply valve 226 for supplying the cleaning chemical to the upper surface cleaning unit 222, and a flow meter 227 for measuring the flow rate of the supplied cleaning chemical. The cleaning chemical supply pipe 233 is provided with a cleaning chemical supply valve 228 for supplying the cleaning chemical to the lower surface cleaning unit 223, and a flow meter 229 for measuring the flow rate of the supplied cleaning chemical. The flow meters 225 , 227 , and 229 and the cleaning chemical solution supply valves 224 , 226 , and 228 are accommodated in the chemical solution supply tank 250 . The cleaning chemical solution supply valve 224 , the cleaning chemical solution supply valve 226 , and the cleaning chemical solution supply valve 228 are opened and closed by, for example, a control device not shown.

清洗藥液供給配管231的下游側端部具有噴嘴231a,該噴嘴231a用於將清洗藥液供給到等待部221。另外,清洗藥液供給配管232的下游側端部具有噴嘴232a,該噴嘴232a用於將清洗藥液供給到上表面清洗部222。此外,清洗藥液供給配管233的下游側端部具有噴嘴233a,該噴嘴233a用於將清洗藥液供給到下表面清洗部223。 The downstream end portion of the cleaning chemical solution supply pipe 231 has a nozzle 231 a for supplying the cleaning chemical solution to the waiting portion 221 . In addition, the downstream end portion of the cleaning chemical solution supply pipe 232 has a nozzle 232 a for supplying the cleaning chemical solution to the upper surface cleaning portion 222 . Further, the downstream end portion of the cleaning chemical solution supply pipe 233 has a nozzle 233 a for supplying the cleaning chemical solution to the lower surface cleaning portion 223 .

如圖5中說明的那樣,藥液供給箱250內的流量表225、227、229分別是超聲波流量計(相當於第1超聲波流量計的一例子)。對於這些流量表225、227、229,為了更準確地測定清洗藥液的流量,而在本實施方式中將所 對應的流量表225、227、229的位置設置得比噴嘴231a、232a、233a的各個位置低。由此,流量表225、227、229的配管內的氣泡容易向噴嘴231a、232a、233a移動,抑制配管內的氣泡滯留在流量表225、227、229內的現象。 As described in FIG. 5 , the flow meters 225 , 227 , and 229 in the chemical solution supply tank 250 are respectively an ultrasonic flowmeter (corresponding to an example of a first ultrasonic flowmeter). These flow meters 225 , 227 , and 229 are used in this embodiment to measure the flow rate of the cleaning chemical solution more accurately. The positions of the corresponding flow meters 225, 227, 229 are set lower than the respective positions of the nozzles 231a, 232a, 233a. Thereby, the air bubbles in the pipes of the flow meters 225, 227, and 229 are easily moved to the nozzles 231a, 232a, and 233a, and the phenomenon that the air bubbles in the pipes remain in the flow meters 225, 227, and 229 is suppressed.

另外,如圖5中也說明的那樣,流量表225、227、229構成為,通過流量表225、227、229的清洗藥液的流動方向朝向鉛垂方向。即,如圖6所示,通過流量表225、227、229的配管以朝向鉛垂方向的狀態而沿上下方向排列。另外,以通過流量表225、227、229的清洗藥液從下向上流動的狀態,而構成流量表225、227、229及清洗藥液供給配管231、232、233。由此,由於流量表225、227、229內的氣泡向上方移動,因此,進一步抑制氣泡滯留在流量表225、227、229內的現象。 Moreover, as also demonstrated in FIG. 5, the flow meters 225, 227, 229 are comprised so that the flow direction of the washing|cleaning chemical|medical solution which passes through the flow meters 225, 227, 229 becomes a vertical direction. That is, as shown in FIG. 6 , the pipes passing through the flow meters 225 , 227 , and 229 are aligned in the vertical direction in a state of being oriented in the vertical direction. In addition, the flow meters 225 , 227 , 229 and the cleaning chemical supply pipes 231 , 232 , and 233 are configured in a state in which the cleaning chemical passing through the flow meters 225 , 227 , and 229 flows from bottom to top. Thereby, since the air bubbles in the flow meters 225, 227, and 229 move upward, the phenomenon that the air bubbles remain in the flow meters 225, 227, and 229 is further suppressed.

另外,此處的所謂「鉛垂方向」,不僅是完全的鉛垂方向,也包含相對於鉛垂方向具有稍許角度的方向。換言之,「鉛垂方向」也包含如下情況:通過流量表225、227、229的氣泡不滯留地可向上方移動的程度地、使通過流量表225、227、229的清洗藥液的流動方向相對於鉛垂方向具有稍許角度。 In addition, the so-called "vertical direction" here includes not only a complete vertical direction but also a direction having a slight angle with respect to the vertical direction. In other words, the "vertical direction" also includes a case where the flow directions of the cleaning chemicals passing through the flow meters 225, 227, and 229 are opposite to the extent that the air bubbles passing through the flow meters 225, 227, and 229 can move upward without being retained. There is a slight angle in the vertical direction.

在本實施方式中,DIWCLC111c及藥液CLC113c的位置與藥液供給箱250的流量表225、227、229相同地,低於噴嘴231a、232a、233a的各個位置。由此,DIWCLC111c及藥液CLC113c所具有的超聲波流量計內的氣泡就容易向噴嘴231a、232a、233a移動,抑制氣泡滯留在超聲波流量計內的現象。 In the present embodiment, the positions of the DIWCLC 111c and the chemical solution CLC 113c are lower than the respective positions of the nozzles 231a, 232a, and 233a, like the flow meters 225, 227, and 229 of the chemical solution supply tank 250. As a result, the bubbles in the ultrasonic flowmeters included in the DIWCLC 111c and the chemical solution CLC113c easily move to the nozzles 231a, 232a, and 233a, and the phenomenon that the bubbles remain in the ultrasonic flowmeter is suppressed.

另外,在圖6的例子中,在DIWCLC111c及藥液CLC113c中流動的DIW及藥液的流動方向是橫向(水平方向)。但是,也可使這些流動方向朝向鉛垂方向地構成DIWCLC111c及藥液CLC113c。在該情況下,由於DIWCLC111c及藥液CLC113c的超聲波流量計內的氣泡向上方移動,因此,可進一步抑制氣泡滯留在超聲波流量計內的現象。 In addition, in the example of FIG. 6, the flow direction of the DIW and the chemical liquid flowing in the DIWCLC 111c and the chemical liquid CLC 113c is the lateral direction (horizontal direction). However, the DIWCLC 111c and the chemical liquid CLC 113c may be configured such that these flow directions are directed to the vertical direction. In this case, since the air bubbles in the ultrasonic flowmeter of the DIWCLC 111c and the chemical solution CLC113c move upward, the phenomenon that the air bubbles remain in the ultrasonic flowmeter can be further suppressed.

如以上說明的那樣,由於流量表225、227、229是超聲波流量計,因此,相比於以往技術可將包含其的藥液供給箱250小型化。另外,由於通過流量表225、227、229的清洗藥液的流動方向是鉛垂方向,因此,可將包含流量表225、227、229在內的藥液供給箱250配置在清洗裝置200的圖5所示的位置。此外,藥液供給箱250的位置比噴嘴231a、232a、233a的各個位置低。因此,不會使裝置尺寸大型化,可進行抑制了氣泡所引起的測定誤差後的流量測定。 As described above, since the flow meters 225 , 227 , and 229 are ultrasonic flow meters, the chemical solution supply tank 250 including them can be reduced in size compared to the conventional technology. In addition, since the flow direction of the cleaning chemical solution passing through the flow meters 225, 227, and 229 is the vertical direction, the chemical solution supply tank 250 including the flow meters 225, 227, and 229 can be arranged in the cleaning device 200 in the drawing. 5 in the position shown. In addition, the position of the chemical solution supply tank 250 is lower than the respective positions of the nozzles 231a, 232a, and 233a. Therefore, it is possible to perform flow measurement in which measurement errors due to air bubbles are suppressed without increasing the size of the apparatus.

以上,說明了本發明的第1實施方式至第3實施方式,但上述的發明的實施方式是用於容易理解本發明的實施方式,不限定本發明。本發明可不脫離其宗旨地進行變更、改進,且對於本發明當然包含其等價物。另外,在能解決上述問題的至少一部分的範圍、或者獲得至少一部分效果的範圍內,可對申請專利範圍及說明書中記載的各結構要素進行任意組合或省略。 The first to third embodiments of the present invention have been described above, but the above-described embodiments of the present invention are for facilitating understanding of the present invention and do not limit the present invention. The present invention can be changed and improved without departing from the gist of the present invention, and it is a matter of course that the present invention includes the equivalents thereof. In addition, within the range where at least part of the above-mentioned problems can be solved, or the range where at least part of the effects can be obtained, the respective components described in the scope of the claims and the specification can be arbitrarily combined or omitted.

具體來說,也可對第1實施方式至第3實施方式的各個特點部分進行置換或組合。例如,在作為第1實施方式的CLC111、121、131(參照圖2)的流量計而採用了超聲波流量計的情況下,也可將CLC111、121、131的位置設置得比將清洗藥液供給到藥液清洗部220的噴嘴的位置低。另外,也可取代第1實施方式或第2實施方式的清洗裝置200(參照圖2及圖3),而採用第3實施方式的清洗裝置200(參照圖6)。另外,例如,也可取代第3實施方式的藥液供給裝置100(參照圖6),而採用第1實施方式或第2實施方式的藥液供給裝置100(參照圖2及圖3)。 Specifically, each characteristic part of the first to third embodiments may be replaced or combined. For example, when an ultrasonic flowmeter is used as the flowmeter of the CLCs 111 , 121 , and 131 (refer to FIG. 2 ) of the first embodiment, the positions of the CLCs 111 , 121 and 131 may be set at a higher level than the supply of the cleaning chemical solution. The position of the nozzle to the chemical solution cleaning unit 220 is low. In addition, the cleaning device 200 (see FIG. 6 ) of the third embodiment may be used instead of the cleaning device 200 (see FIGS. 2 and 3 ) according to the first embodiment or the second embodiment. In addition, for example, the chemical solution supply device 100 (refer to FIG. 6 ) of the third embodiment may be replaced with the chemical solution supply device 100 (refer to FIGS. 2 and 3 ) of the first embodiment or the second embodiment.

<第4實施方式> <4th Embodiment>

下面,參照附圖來說明本發明的第4實施方式。圖7是表示本實施方式的清洗單元所具有的藥液供給裝置的概略側視圖。藥液供給裝置構成為,可將例如氫氟酸或氨等藥液供給到對CMP裝置各部分進行清洗用的清洗裝 置。如圖7所示,本實施方式的藥液供給裝置100具有:殼體10;以及複數個藥液稀釋箱150或160,該複數個藥液稀釋箱150或160用DIW(稀釋水)對藥液進行稀釋,並用於供給稀釋後的藥液(稀釋藥液)。在圖示的例子中,四個藥液稀釋箱150或160設於藥液供給裝置100,但是這是一例子而已,根據清洗裝置的規格,藥液稀釋箱150或160的數量也可適當變更。如圖所示,藥液稀釋箱150或160被收納在殼體101內。 Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a schematic side view showing a chemical solution supply device included in the cleaning unit of the present embodiment. The chemical solution supply device is configured to supply a chemical solution such as hydrofluoric acid or ammonia to a cleaning device for cleaning various parts of the CMP apparatus. set. As shown in FIG. 7 , the chemical solution supply device 100 of the present embodiment includes: a casing 10; The liquid is diluted and used to supply the diluted drug solution (diluted drug solution). In the illustrated example, four chemical solution dilution tanks 150 or 160 are provided in the chemical solution supply device 100, but this is only an example, and the number of the chemical solution dilution tanks 150 or 160 may be appropriately changed according to the specifications of the cleaning device. . As shown in the figure, the chemical solution dilution tank 150 or 160 is accommodated in the casing 101 .

藥液稀釋箱150或160構成為,將來自後述的DIW供給源10的DIW和來自藥液供給源20或藥液供給源30的藥液混合,並可將稀釋藥液供給到清洗裝置200(參照圖8)。 The chemical solution dilution tank 150 or 160 is configured to mix the DIW from the DIW supply source 10 described later and the chemical solution from the chemical solution supply source 20 or the chemical solution supply source 30, and can supply the diluted chemical solution to the cleaning device 200 ( Refer to Figure 8).

雖未圖示,但藥液供給裝置100具有用於輸送DIW或藥液的配管、閥和壓力計等。在圖8中詳細說明。 Although not shown, the chemical solution supply device 100 includes piping, a valve, a pressure gauge, and the like for feeding DIW or a chemical solution. Details are shown in FIG. 8 .

圖8是本發明實施方式的清洗單元的概略圖。如圖所示,清洗單元具有:圖7所示的藥液供給裝置100(清洗藥液供給裝置);以及清洗裝置200(基板清洗裝置),該清洗裝置200用於利用從藥液供給裝置100供給的清洗藥液而對基板及CMP裝置的各部分進行清洗。 8 is a schematic diagram of a cleaning unit according to an embodiment of the present invention. As shown in the figure, the cleaning unit includes: a chemical solution supply device 100 (cleaning chemical solution supply device) shown in FIG. The supplied cleaning chemical solution cleans the substrate and each part of the CMP apparatus.

藥液供給裝置100構成為,分別經由配管而與用於供給DIW的DIW供給源10流體連通,與例如供給氫氟酸或氨等藥液的藥液供給源20流體連通,及與用於供給同樣的藥液的藥液供給源30流體連通。另外,藥液供給裝置100構成為,與清洗裝置200流體連通。具體來說,藥液供給裝置100構成為,以能夠將DIW及稀釋後的藥液供給到清洗裝置200方式與清洗裝置200流體連通。 The chemical solution supply device 100 is configured to be in fluid communication with a DIW supply source 10 for supplying DIW, in fluid communication with a chemical solution supply source 20 for supplying chemical solutions such as hydrofluoric acid or ammonia, and The medicinal solution supply source 30 of the same medicinal solution is in fluid communication. In addition, the chemical solution supply device 100 is configured to be in fluid communication with the cleaning device 200 . Specifically, the chemical solution supply device 100 is configured to be in fluid communication with the cleaning device 200 so that the DIW and the diluted chemical solution can be supplied to the cleaning device 200 .

清洗裝置200具有:DIW清洗部210,該DIW清洗部210用DIW對由CMP裝置研磨後的半導體基板等的清洗對象物即CMP裝置的各部分進行清洗;第1藥液清洗部220及第2藥液清洗部240,該第1藥液清洗部220及第2藥液 清洗部240用稀釋後的藥液(清洗藥液)對由CMP裝置研磨後的半導體基板等的清洗對象物進行清洗。DIW清洗部210由例如超聲波水清洗部或其它的DIW清洗部等構成。第1藥液清洗部220由例如輥型清洗部構成,第2藥液清洗部240由例如筆型清洗部構成。 The cleaning apparatus 200 includes: a DIW cleaning unit 210 that cleans each part of the CMP apparatus, which is an object to be cleaned, such as a semiconductor substrate polished by the CMP apparatus, by using DIW; a first chemical solution cleaning unit 220 and a second The chemical solution cleaning part 240, the first chemical solution cleaning part 220 and the second chemical solution The cleaning unit 240 cleans a cleaning object such as a semiconductor substrate polished by a CMP apparatus with a diluted chemical solution (cleaning chemical solution). The DIW cleaning unit 210 is constituted by, for example, an ultrasonic water cleaning unit, another DIW cleaning unit, or the like. The first chemical solution cleaning unit 220 is constituted by, for example, a roller-shaped cleaning unit, and the second chemical solution cleaning unit 240 is constituted by, for example, a pen-shaped cleaning unit.

藥液供給裝置100具有:第1藥液稀釋箱150,該第1藥液稀釋箱150用DIW(稀釋水)對藥液進行稀釋,並用於將稀釋後的藥液(稀釋藥液)供給到清洗裝置200的第1藥液清洗部220;及第2藥液稀釋箱160,該第2藥液稀釋箱160用DIW(稀釋水)對藥液進行稀釋,並用於將稀釋後的藥液供給到清洗裝置200的第2藥液清洗部240。 The chemical solution supply device 100 includes a first chemical solution dilution tank 150 for diluting the chemical solution with DIW (dilution water) and for supplying the diluted chemical solution (diluted chemical solution) to the first chemical solution dilution tank 150 . a first chemical solution cleaning part 220 of the cleaning device 200; and a second chemical solution dilution tank 160 for diluting the chemical solution with DIW (dilution water) and supplying the diluted chemical solution to the second chemical solution cleaning unit 240 of the cleaning device 200 .

第1藥液稀釋箱150具有:將藥液和DIW混合而生成清洗藥液的直列式混合器115(混合部);對從DIW供給源10供給到直列式混合器115的DIW的流量進行調節的DIWCLC(Closed Loop Controller:閉環控制器)111a(第1稀釋水流量控制部)及DIWCLC111b(第2稀釋水流量控制部);以及對從藥液供給源20供給到直列式混合器115的藥液的流量進行調節的藥液CLC113a(第1藥液流量控制部)及藥液CLC113b(第2藥液流量控制部)。直列式混合器115構成為,將所生成的清洗藥液供給到第1藥液清洗部220。 The first chemical solution dilution tank 150 includes an inline mixer 115 (mixing unit) that mixes the chemical solution and DIW to generate cleaning chemical solution, and adjusts the flow rate of DIW supplied from the DIW supply source 10 to the inline mixer 115 DIWCLC (Closed Loop Controller: closed loop controller) 111a (first dilution water flow control part) and DIWCLC 111b (second dilution water flow control part); The chemical liquid CLC 113a (first chemical liquid flow control unit) and the chemical liquid CLC 113b (second chemical liquid flow control unit) for adjusting the flow rate of the liquid. The inline mixer 115 is configured to supply the generated cleaning chemical solution to the first chemical solution cleaning unit 220 .

第1藥液稀釋箱150還具有兩個DIW供給閥112a、112b,該兩個DIW供給閥112a、112b用於將稀釋用DIW從DIW供給源10分別供給到直列式混合器115。DIWCLC111a、111b分別對流動於DIWCLC111a、111b的DIW的流量進行測定,基於測定結果而對內部的控制閥的開度進行調節(反饋控制),以使在DIWCLC111a、111b內流動的DIW的流量成為所期望的流量。 The first chemical solution dilution tank 150 further includes two DIW supply valves 112 a and 112 b for supplying DIW for dilution from the DIW supply source 10 to the inline mixer 115 , respectively. The DIWCLCs 111a and 111b measure the flow rates of the DIW flowing in the DIWCLCs 111a and 111b, respectively, and adjust the opening of the internal control valve based on the measurement results (feedback control) so that the flow rates of the DIW flowing in the DIWCLCs 111a and 111b become the same. desired traffic.

第1藥液稀釋箱150還具有藥液供給閥114a、114b,該藥液供給閥114a、114b用於將藥液從藥液供給源20分別供給到直列式混合器115。藥液CLC113a、113b分別對流動於藥液CLC113a、113b的藥液的流量進行測定,基 於測定結果而對內部的控制閥的開度進行調節(反饋控制),以使在藥液CLC113a、113b內流動的藥液的流量成為所期望的流量。 The first chemical solution dilution tank 150 further includes chemical solution supply valves 114a and 114b for supplying the chemical solution from the chemical solution supply source 20 to the inline mixer 115, respectively. The chemical liquids CLC113a and 113b measure the flow rates of the chemical liquids flowing in the chemical liquids CLC113a and 113b, respectively. Based on the measurement result, the opening degree of the internal control valve is adjusted (feedback control) so that the flow rate of the chemical solution flowing in the chemical solution CLCs 113a and 113b becomes a desired flow rate.

另外,第1藥液稀釋箱150設在連接藥液供給源20和藥液CLC113a的配管91a上,並具有:將藥液供給到配管91a的藥液入口閥51a;以及對配管91a內的流體壓力進行計測的壓力計52a。同樣,第1藥液稀釋箱150設在連接藥液供給源20和藥液CLC113b的配管91b上,並具有:將藥液供給到配管91b的藥液入口閥51b;以及對配管91b內的流體壓力進行計測的壓力計52b。藥液入口閥51a、51b由例如未圖示的控制裝置進行開閉控制。 In addition, the first chemical solution dilution tank 150 is provided on the pipe 91a connecting the chemical liquid supply source 20 and the chemical liquid CLC 113a, and has: a chemical liquid inlet valve 51a for supplying the chemical liquid to the pipe 91a; The pressure gauge 52a for measuring the pressure. Similarly, the first chemical dilution tank 150 is provided on the pipe 91b connecting the chemical supply source 20 and the chemical CLC 113b, and has a chemical inlet valve 51b for supplying the chemical to the pipe 91b; The pressure gauge 52b for measuring the pressure. The chemical solution inlet valves 51a and 51b are controlled to open and close, for example, by a control device not shown.

第2藥液稀釋箱160具有與第1藥液稀釋箱150類似的結構。即,第2藥液稀釋箱160具有:將藥液和DIW混合而生成清洗藥液的直列式混合器116(混合部);對從DIW供給源10供給到直列式混合器116的DIW的流量進行調節的兩個DIWCLC(Closed Loop Controller:閉環控制器)121a、121b;以及對從藥液供給源30供給到直列式混合器116的藥液的流量進行調節的兩個藥液CLC123a、123b。直列式混合器116構成為,將所生成的清洗藥液供給到第2藥液清洗部240。 The second chemical solution dilution tank 160 has a structure similar to that of the first chemical solution dilution tank 150 . That is, the second chemical solution dilution tank 160 includes the inline mixer 116 (mixing unit) that mixes the chemical solution and DIW to generate the cleaning chemical solution, and the flow rate of the DIW supplied from the DIW supply source 10 to the inline mixer 116 Two DIWCLCs (Closed Loop Controllers) 121a and 121b for adjustment, and two chemical liquid CLCs 123a and 123b for adjusting the flow rate of the chemical liquid supplied from the chemical liquid supply source 30 to the in-line mixer 116 . The inline mixer 116 is configured to supply the generated cleaning chemical solution to the second chemical solution cleaning unit 240 .

第2藥液稀釋箱160還具有兩個DIW供給閥122a、122b,該兩個DIW供給閥122a、122b用於將稀釋用DIW從DIW供給源10分別供給到直列式混合器116。DIWCLC121a、121b分別對流動於DIWCLC121a、121b的DIW的流量進行測定,基於測定結果而對內部的控制閥的開度進行調節(反饋控制),以使在DIWCLC121a、121b內流動的DIW的流量成為所期望的流量。 The second chemical solution dilution tank 160 further includes two DIW supply valves 122 a and 122 b for supplying the DIW for dilution from the DIW supply source 10 to the inline mixer 116 , respectively. The DIWCLCs 121a and 121b measure the flow rates of the DIW flowing in the DIWCLCs 121a and 121b, respectively, and adjust the opening of the internal control valve based on the measurement results (feedback control) so that the flow rates of the DIW flowing in the DIWCLCs 121a and 121b become the same. desired traffic.

第2藥液稀釋箱160還具有藥液供給閥124a、124b,該藥液供給閥124a、124b用於將藥液從藥液供給源30分別供給到直列式混合器116。藥液CLC123a、123b分別對流動於藥液CLC123a、123b的藥液的流量進行測定,基 於測定結構而對內部的控制閥的開度進行調節(反饋控制),以使在藥液CLC123a、123內流動的藥液的流量成為所期望的流量。 The second chemical solution dilution tank 160 further includes chemical solution supply valves 124 a and 124 b for supplying the chemical solution from the chemical solution supply source 30 to the in-line mixer 116 , respectively. The chemical liquids CLC123a and 123b measure the flow rates of the chemical liquids flowing in the chemical liquids CLC123a and 123b, respectively. In the measurement structure, the opening degree of the internal control valve is adjusted (feedback control) so that the flow rate of the chemical solution flowing in the chemical solution CLCs 123a and 123 becomes a desired flow rate.

另外,第2藥液稀釋箱160設在連接藥液供給源30和藥液CLC123a的配管92a上,並具有:將藥液供給到配管92a的藥液入口閥61a;以及對配管92a內的流體壓力進行計測的壓力計62a。同樣,第2藥液稀釋箱160設在連接藥液供給源30和藥液CLC123b的配管92b上,並具有:將藥液供給到配管92b的藥液入口閥61b;以及對配管92b內的流體壓力進行計測的壓力計62b。藥液入口閥61a、61b由例如未圖示的控制裝置進行開閉控制。 In addition, the second chemical solution dilution tank 160 is provided on the pipe 92a connecting the chemical liquid supply source 30 and the chemical liquid CLC 123a, and has: a chemical liquid inlet valve 61a for supplying the chemical liquid to the pipe 92a; A pressure gauge 62a for measuring pressure. Similarly, the second chemical dilution tank 160 is provided on the pipe 92b connecting the chemical supply source 30 and the chemical CLC 123b, and has a chemical inlet valve 61b for supplying the chemical to the pipe 92b; A pressure gauge 62b for measuring pressure. The chemical solution inlet valves 61a and 61b are controlled to open and close by, for example, a control device not shown.

藥液供給裝置100具有DIW供給配管81,該DIW供給配管81的一端與DIW供給源10連接,另一端與清洗裝置200的DIW清洗部210連接。在DIW供給配管81上設有:DIW供給閥86,該DIW供給閥86用於將DIW從DIW供給源10供給到DIW供給配管81;DIW壓力調節器87,該DIW壓力調節器87用於對DIW從DIW供給配管81向DIW清洗部210的供給壓力進行調節;以及DIW壓力計88,該DIW壓力計88對通過DIW供給配管81的內部的DIW的壓力進行計測。 The chemical solution supply device 100 includes a DIW supply pipe 81 , one end of which is connected to the DIW supply source 10 and the other end is connected to the DIW cleaning unit 210 of the cleaning device 200 . The DIW supply piping 81 is provided with: a DIW supply valve 86 for supplying DIW from the DIW supply source 10 to the DIW supply piping 81; and a DIW pressure regulator 87 for The DIW supply pressure from the DIW supply pipe 81 to the DIW cleaning unit 210 is adjusted; and the DIW pressure gauge 88 measures the pressure of the DIW passing through the DIW supply pipe 81 .

在DIW供給配管81上的DIW供給閥86與DIW壓力調節器87之間連接DIW分歧配管82a,該DIW分歧配管82a的一端與DIWCLC111a連接。在DIWCLC111a上連接與直列式混合器115流體連通的DIW配管83a。DIW供給閥112a設在DIW配管83a上,且在將DIW供給到直列式混合器115的情況下被開閉控制。同樣,在DIW供給配管81上的DIW供給閥86與DIW壓力調節器87之間連接DIW分歧配管82b,該DIW分歧配管82b的一端與DIWCLC111b連接。在DIWCLC111b上連接與直列式混合器115流體連通的DIW配管83b。DIW供給閥112b設在DIW配管83b上,且在將DIW供給到直列式混合器115的情況下被開閉控制。DIWCLC111b及DIW供給閥112b以相對於DIWCLC111a及DIW供給閥112a為並列關係的狀態而配置在DIW供給源10與直列式混合器115之間。 A DIW branch pipe 82a is connected between the DIW supply valve 86 on the DIW supply pipe 81 and the DIW pressure regulator 87, and one end of the DIW branch pipe 82a is connected to the DIWCLC 111a. The DIW piping 83a which is in fluid communication with the inline mixer 115 is connected to the DIWCLC 111a. The DIW supply valve 112a is provided in the DIW piping 83a, and is controlled to open and close when supplying DIW to the inline mixer 115 . Similarly, a DIW branch pipe 82b is connected between the DIW supply valve 86 on the DIW supply pipe 81 and the DIW pressure regulator 87, and one end of the DIW branch pipe 82b is connected to the DIWCLC 111b. The DIW piping 83b which is in fluid communication with the inline mixer 115 is connected to the DIWCLC 111b. The DIW supply valve 112b is provided in the DIW piping 83b, and is controlled to open and close when supplying DIW to the inline mixer 115 . The DIWCLC 111b and the DIW supply valve 112b are arranged between the DIW supply source 10 and the inline mixer 115 in a state of being in a parallel relationship with the DIWCLC 111a and the DIW supply valve 112a.

在第1藥液稀釋箱150的藥液CLC113a上連接與直列式混合器115流體連通的藥液配管85a。藥液供給閥114a設在藥液配管85a上,將藥液供給到藥液配管85a內。在直列式混合器115上連接清洗藥液配管96,該清洗藥液配管96的一端與清洗裝置200連接。在第1藥液稀釋箱150的藥液CLC113b上連接與直列式和其115流體連通的藥液配管85b。藥液供給閥114b設在藥液配管85b上,將藥液供給到藥液配管85b內。藥液入口閥51b、壓力計52b、藥液CLC113b及藥液供給閥114b,以相對於藥液入口閥51a、壓力計52a、藥液CLC113a及藥液供給閥114a為並列關係的狀態而配置在藥液供給源20與直列式混合器115之間。 The chemical liquid piping 85a which is in fluid communication with the in-line mixer 115 is connected to the chemical liquid CLC 113a of the first chemical liquid dilution tank 150 . The chemical solution supply valve 114a is provided in the chemical solution pipe 85a, and supplies the chemical solution into the chemical solution pipe 85a. A cleaning chemical solution pipe 96 is connected to the inline mixer 115 , and one end of the cleaning chemical solution pipe 96 is connected to the cleaning device 200 . To the chemical liquid CLC 113b of the first chemical liquid dilution tank 150, a chemical liquid pipe 85b which is in fluid communication with the in-line type and the chemical liquid pipe 85b is connected. The chemical solution supply valve 114b is provided in the chemical solution pipe 85b, and supplies the chemical solution into the chemical solution pipe 85b. The chemical liquid inlet valve 51b, the pressure gauge 52b, the chemical liquid CLC 113b, and the chemical liquid supply valve 114b are arranged in a parallel relationship with the chemical liquid inlet valve 51a, the pressure gauge 52a, the chemical liquid CLC 113a, and the chemical liquid supply valve 114a. Between the chemical solution supply source 20 and the in-line mixer 115 .

另外,在DIW供給配管81上的DIW供給閥86與DIW壓力調節器87之間連接DIW分歧配管75a,該DIW分歧配管75a的一端與DIWCLC121a連接。在DIWCLC121a上連接與直列式混合器116流體連通的DIW配管76a。DIW供給閥122a設在DIW配管76a上,且在將DIW供給到直列式混合器116的情況下被開閉控制。同樣,在DIW供給配管81上的DIW供給閥86與DIW壓力調節器87之間連接DIW分歧配管75b,該DIW分歧配管75b的一端與DIWCLC121b連接。在DIWCLC121b上連接與直列式混合器116流體連通的DIW配管76b。DIW供給閥122b設在DIW配管76b上,且在將DIW供給到直列式混合器116的情況下被開閉控制。DIWCLC121b及DIW供給閥122b,以相對於DIWCLC121a及DIW供給閥122a為並列關係的狀態而配置在DIW供給源10與直列式混合器116之間。 In addition, a DIW branch pipe 75a is connected between the DIW supply valve 86 on the DIW supply pipe 81 and the DIW pressure regulator 87, and one end of the DIW branch pipe 75a is connected to the DIWCLC 121a. The DIW piping 76a which is in fluid communication with the inline mixer 116 is connected to the DIWCLC 121a. The DIW supply valve 122a is provided in the DIW piping 76a, and is controlled to open and close when supplying DIW to the inline mixer 116 . Similarly, a DIW branch pipe 75b is connected between the DIW supply valve 86 on the DIW supply pipe 81 and the DIW pressure regulator 87, and one end of the DIW branch pipe 75b is connected to the DIWCLC 121b. The DIW piping 76b in fluid communication with the inline mixer 116 is connected to the DIWCLC 121b. The DIW supply valve 122b is provided in the DIW piping 76b, and is controlled to open and close when supplying DIW to the inline mixer 116 . The DIWCLC 121b and the DIW supply valve 122b are arranged between the DIW supply source 10 and the in-line mixer 116 in a state of parallel relationship with the DIWCLC 121a and the DIW supply valve 122a.

在第2藥液稀釋箱160的藥液CLC123a上連接與直列式混合器116流體連通的藥液配管74a。藥液供給閥124a設在藥液配管74a上,將藥液供給到藥液配管74a內。在直列式混合器116上連接清洗藥液配管97,該清洗藥液配管97的一端與清洗裝置200連接。在第2藥液稀釋箱160的藥液CLC123b上連接與直列式混合器116流體連通的藥液配管74b。藥液供給閥124b設在藥液配管74b 上,將藥液供給到藥液配管74b內。藥液入口閥61b、壓力計62b、藥液CLC123b及藥液供給閥124b,以相對於藥液入口閥61a、壓力計62a、藥液CLC123a及藥液供給閥124a為並列關係的狀態而配置在藥液供給源30與直列式混合器116之間。 The chemical liquid piping 74a which is in fluid communication with the in-line mixer 116 is connected to the chemical liquid CLC 123a of the second chemical liquid dilution tank 160 . The chemical solution supply valve 124a is provided in the chemical solution pipe 74a, and supplies the chemical solution into the chemical solution pipe 74a. A cleaning chemical solution pipe 97 is connected to the inline mixer 116 , and one end of the cleaning chemical solution pipe 97 is connected to the cleaning device 200 . The chemical liquid piping 74b which is in fluid communication with the in-line mixer 116 is connected to the chemical liquid CLC 123b of the second chemical liquid dilution tank 160 . The chemical solution supply valve 124b is provided in the chemical solution pipe 74b Above, the chemical liquid is supplied into the chemical liquid pipe 74b. The chemical liquid inlet valve 61b, the pressure gauge 62b, the chemical liquid CLC 123b, and the chemical liquid supply valve 124b are arranged in a parallel relationship with the chemical liquid inlet valve 61a, the pressure gauge 62a, the chemical liquid CLC 123a, and the chemical liquid supply valve 124a. Between the chemical liquid supply source 30 and the in-line mixer 116 .

第1藥液稀釋箱150的DIWCLC111a、111b及藥液CLC113a、113b、和第2藥液稀釋箱160的DIWCLC121a、121b及藥液CLC123a、123b構成為,可從未圖示的控制裝置接收表示規定的流量值的信號。基於該流量值而控制DIWCLC111a、111b及藥液CLC113a、113b和DIWCLC121a、121b及藥液CLC123a、123b的內部控制閥的開度。 The DIWCLCs 111a and 111b and the chemical liquids CLCs 113a and 113b of the first chemical solution dilution tank 150 and the DIWCLCs 121a and 121b and the chemical liquids CLCs 123a and 123b of the second chemical liquid dilution tank 160 are configured so as to be able to receive indication rules from a control device (not shown) signal of the flow value. The opening degrees of the internal control valves of the DIWCLCs 111a and 111b, the chemical solutions CLCs 113a and 113b, and the DIWCLCs 121a and 121b and the chemical solutions CLCs 123a and 123b are controlled based on this flow rate value.

清洗裝置200的第1藥液清洗部220具有:上表面清洗部222(清洗部),該上表面清洗部222將清洗藥液供給到研磨後的基板的上表面對其進行清洗;下表面清洗部223(清洗部),該下表面清洗部223將清洗藥液供給到研磨後的基板的下表面對其進行清洗;以及等待部221,該等待部221配置等待要由上表面清洗部222及下表面清洗部223清洗的基板。上表面清洗部222及下表面清洗部223作為對一張基板的上表面和下表面同時進行清洗的基板清洗部發揮功能。等待部221將清洗藥液供給到等待中的基板,以防止等待中的基板產生氧化的現象。 The first chemical solution cleaning unit 220 of the cleaning apparatus 200 includes an upper surface cleaning unit 222 (cleaning unit) that supplies cleaning chemical solution to the upper surface of the polished substrate to clean it; lower surface cleaning part 223 (cleaning part), the lower surface cleaning part 223 supplies the cleaning chemical solution to the lower surface of the polished substrate to clean it; The substrate cleaned by the lower surface cleaning unit 223 . The upper surface cleaning unit 222 and the lower surface cleaning unit 223 function as a substrate cleaning unit that simultaneously cleans the upper surface and the lower surface of one substrate. The waiting unit 221 supplies cleaning chemicals to the waiting substrate to prevent oxidation of the waiting substrate.

清洗裝置200具有:清洗藥液供給配管231,該清洗藥液供給配管231使清洗藥液配管96和等待部221流體連通;清洗藥液供給配管232,該清洗藥液供給配管232使清洗藥液配管96和上表面清洗部222流體連通;以及清洗藥液供給配管233,該清洗藥液供給配管233使清洗藥液配管96和下表面清洗部223流體連通。 The cleaning device 200 includes: a cleaning chemical solution supply pipe 231 which fluidly communicates the cleaning chemical solution pipe 96 and the waiting part 221; and a cleaning chemical solution supply pipe 232 which makes the cleaning chemical solution The piping 96 is in fluid communication with the upper surface cleaning part 222;

在清洗藥液供給配管231上設置:清洗藥液供給閥224,該清洗藥液供給閥224用於將清洗藥液供給到等待部221;以及流量表225,該流量表 225對所供給的清洗藥液的流量進行計測。在清洗藥液供給配管232上設置:清洗藥液供給閥226,該清洗藥液供給閥226用於將清洗藥液供給到上表面清洗部222;以及流量表227,該流量表227對所供給的清洗藥液的流量進行計測。在清洗藥液供給配管233上設置:清洗藥液供給閥228,該清洗藥液供給閥228用於將清洗藥液供給到下表面清洗部223;以及流量表229,該流量表229對所供給的清洗藥液的流量進行計測。清洗藥液供給閥224、清洗藥液供給閥226及清洗藥液供給閥228由例如未圖示的控制裝置進行開閉控制。 The cleaning chemical solution supply piping 231 is provided with: a cleaning chemical solution supply valve 224 for supplying the cleaning chemical solution to the waiting part 221; and a flow meter 225 for supplying the cleaning chemical solution 225 measures the flow rate of the supplied cleaning chemical solution. The cleaning chemical solution supply piping 232 is provided with: a cleaning chemical solution supply valve 226 for supplying the cleaning chemical solution to the upper surface cleaning part 222; and a flow meter 227 for supplying the cleaning chemical solution 227 The flow rate of the cleaning solution was measured. The cleaning chemical solution supply piping 233 is provided with: a cleaning chemical solution supply valve 228 for supplying the cleaning chemical solution to the lower surface cleaning part 223; and a flow meter 229 for supplying the cleaning chemical solution 229 The flow rate of the cleaning solution was measured. The cleaning chemical solution supply valve 224 , the cleaning chemical solution supply valve 226 , and the cleaning chemical solution supply valve 228 are opened and closed by, for example, a control device not shown.

清洗裝置200的第2藥液清洗部240具有:上表面清洗部242(清洗部),該上表面清洗部242將清洗藥液供給到研磨後的基板的上表面對其進行清洗;下表面清洗部243(清洗部),該下表面清洗部243將清洗藥液供給到研磨後的基板的下表面對其進行清洗;以及等待部241,該等待部241配置等待要由上表面清洗部242及下表面清洗部243進行清洗的基板。上表面清洗部242及下表面清洗部243作為對一張基板的上表面和下表面同時進行清洗的基板清洗部而發揮功能。 The second chemical solution cleaning unit 240 of the cleaning apparatus 200 includes an upper surface cleaning unit 242 (cleaning unit) that supplies cleaning chemical solution to the upper surface of the polished substrate to clean it; lower surface cleaning part 243 (cleaning part), the lower surface cleaning part 243 supplies the cleaning chemical solution to the lower surface of the ground substrate to clean it; The lower surface cleaning unit 243 cleans the substrate. The upper surface cleaning unit 242 and the lower surface cleaning unit 243 function as a substrate cleaning unit that simultaneously cleans the upper surface and the lower surface of one substrate.

清洗裝置200具有:清洗藥液供給配管251,該清洗藥液供給配管251使清洗藥液配管97和等待部241流體連通;清洗藥液供給配管252,該清洗藥液供給配管252使清洗藥液配管97和上表面清洗部242流體連通;以及清洗藥液供給配管253,該清洗藥液供給配管253使清洗藥液配管97和下表面清洗部243流體連通。 The cleaning device 200 includes: a cleaning chemical solution supply pipe 251 which fluidly communicates the cleaning chemical solution pipe 97 and the waiting part 241; and a cleaning chemical solution supply pipe 252 which allows the cleaning chemical solution The piping 97 is in fluid communication with the upper surface cleaning part 242;

在清洗藥液供給配管251上設置:清洗藥液供給閥244,該清洗藥液供給閥244用於將清洗藥液供給到等待部241;以及流量表245,該流量表245對所供給的清洗藥液的流量進行計測。在清洗藥液供給配管252上設置:清洗藥液供給閥246,該清洗藥液供給閥246用於將清洗藥液供給到上表面清洗部242;以及流量表247,該流量表247對所供給的清洗藥液的流量進行計測。在 清洗藥液供給配管253上設置:清洗藥液供給閥248,該清洗藥液供給閥248用於將清洗藥液供給到下表面清洗部243;以及流量表249,該流量表249對所供給的清洗藥液的流量進行計測。清洗藥液供給閥244、清洗藥液供給閥246及清洗藥液供給閥248由例如未圖示的控制裝置進行開閉控制。 The cleaning chemical solution supply piping 251 is provided with: a cleaning chemical solution supply valve 244 for supplying the cleaning chemical solution to the waiting part 241; and a flow meter 245 for supplying cleaning chemicals The flow rate of the liquid medicine is measured. The cleaning chemical solution supply piping 252 is provided with: a cleaning chemical solution supply valve 246 for supplying the cleaning chemical solution to the upper surface cleaning part 242; and a flow meter 247 for supplying the cleaning chemical solution 247 The flow rate of the cleaning solution was measured. exist The cleaning chemical solution supply piping 253 is provided with: a cleaning chemical solution supply valve 248 for supplying the cleaning chemical solution to the lower surface cleaning part 243; and a flow meter 249 for supplying a The flow rate of the cleaning solution is measured. The cleaning chemical solution supply valve 244 , the cleaning chemical solution supply valve 246 , and the cleaning chemical solution supply valve 248 are opened and closed by, for example, a control device not shown.

在本實施方式的藥液供給裝置100中,為了在寬大的流量範圍供給藥液,可由藥液CLC113a及藥液CLC123a控制的藥液的流量範圍構成為,不同於可由藥液CLC113b及藥液CLC123b控制的藥液的流量範圍。具體來說,例如構成為,藥液CLC113a及藥液CLC123a在較低流量的流量範圍(第1範圍)可控制藥液流量,藥液CLC113b及藥液CLC123b在較高流量的流量範圍(第2範圍)可控制藥液流量,且藥液CLC113a及藥液CLC123a可控制的流量範圍和藥液CLC113b及藥液CLC123b可控制的流量範圍作成一部分重疊。 In the chemical solution supply apparatus 100 of the present embodiment, in order to supply the chemical solution in a wide flow rate range, the flow rate range of the chemical solution controllable by the chemical solution CLC113a and the chemical solution CLC123a is configured to be different from that which can be controlled by the chemical solution CLC113b and the chemical solution CLC123b The flow range of the controlled liquid medicine. Specifically, for example, the chemical liquid CLC113a and the chemical liquid CLC123a are configured to control the flow rate of the chemical liquid in the flow rate range of the lower flow rate (the first range), and the chemical liquid CLC113b and the chemical liquid CLC123b in the flow rate range of the higher flow rate (the second range). range) can control the flow rate of the medicinal liquid, and the flow range that can be controlled by the medicinal liquid CLC113a and the medicinal liquid CLC123a is partially overlapped with the controllable flow range of the medicinal liquid CLC113b and the medicinal liquid CLC123b.

在本實施方式的藥液供給裝置100中,藥液CLC113a及藥液CLC123a可控制的流量範圍是30mL/min以上、300mL/min以下,藥液CLC113b及藥液CLC123b可控制的流量範圍是250mL/min以上、2500mL/min以下。因此,可用藥液CLC113a及藥液CLC113b供給到直列式混合器115的藥液的流量範圍成為30mLming以上、2800mL/min以下。同樣,可用藥液CLC123a及藥液CLC123b供給到直列式混合器116的藥液的流量範圍成為30mL/min以上、2800mL/min以下。 In the chemical solution supply device 100 of the present embodiment, the controllable flow rate range of the chemical liquid CLC113a and the chemical liquid CLC123a is 30 mL/min or more and 300 mL/min or less, and the controllable flow rate range of the chemical liquid CLC113b and the chemical liquid CLC 123b is 250 mL/min. min or more and 2500mL/min or less. Therefore, the range of the flow rate of the chemical solution that can be supplied to the in-line mixer 115 by the chemical solution CLC113a and the chemical solution CLC113b is 30 mLming or more and 2800 mL/min or less. Similarly, the range of the flow rate of the chemical solutions that can be supplied to the in-line mixer 116 is 30 mL/min or more and 2800 mL/min or less.

另外,在本實施方式的藥液供給裝置100中,構成為,為了在寬大的流量範圍供給DIW,可由DIWCLC111a及DIWCLC121a控制的DIW的流量範圍,不同於可由DIWCLC111b及DIWCLC121b控制的DIW的流量範圍。具體來說,例如構成為,DIWCLC111a及DIWCLC121a在較低流量的流量範圍(第3範圍)可控制DIW流量,DIWCLC111b及DIWCLC121b在較高流量的流量範圍 (第4範圍)可控制DIW流量,DIWCLC111a及DIWCLC121a可控制的流量範圍與DIWCLC111b及DIWCLC121b可控制的流量範圍作成一部分重疊。 In addition, in the chemical solution supply device 100 of the present embodiment, in order to supply DIW in a wide flow rate range, the flow rate range of DIW controllable by DIWCLC 111a and DIWCLC 121a is different from the flow rate range of DIW controllable by DIWCLC 111b and DIWCLC 121b. Specifically, for example, DIWCLC 111a and DIWCLC 121a can control the DIW flow rate in a flow rate range (third range) of a relatively low flow rate, and DIWCLC 111b and DIWCLC 121b are configured in a flow rate range of a relatively high flow rate. (Fourth range) The DIW flow rate can be controlled, and the flow rate range that can be controlled by DIWCLC111a and DIWCLC121a is partially overlapped with the flow rate range that can be controlled by DIWCLC111b and DIWCLC121b.

在本實施方式的藥液供給裝置100中,DIWCLC111a及DIWCLC121a可控制的流量範圍是200mL/min以上、2000mL/min以下,DIWCLC111b及DIWCLC121b可控制的流量範圍是400mL/min以上、4000mL/min以下。因此,可用DIWCLC111a及DIWCLC111b供給到直列式混合器115的DIW的流量範圍成為200mLming以上、6000mL/min以下。同樣,可用DIWCLC121a及DIWCLC121b供給到直列式混合器116的DIW的流量範圍成為200mL/min以上、600mL/min以下。 In the chemical solution supply device 100 of the present embodiment, the controllable flow rate range of DIWCLC 111a and DIWCLC 121a is 200 mL/min or more and 2000 mL/min or less, and the controllable flow rate range of DIWCLC 111b and DIWCLC 121b is 400 mL/min or more and 4000 mL/min or less. Therefore, the flow rate range of the DIW supplied to the in-line mixer 115 with the DIWCLC 111a and the DIWCLC 111b is 200 mLming or more and 6000 mL/min or less. Similarly, the flow rate range of the DIW supplied to the in-line mixer 116 using DIWCLC 121a and DIWCLC 121b is 200 mL/min or more and 600 mL/min or less.

在本實施方式中,由於藥液的流量範圍是30mL/min以上、2800mL/min以下,DIW的流量範圍是200mL/min以上、6000mL/min以下,因此,藥液與DIW的稀釋比例的範圍成為1:1以上、1:200以下(藥液:DIW)。 In the present embodiment, since the flow rate range of the chemical solution is 30 mL/min or more and 2800 mL/min or less, and the flow rate range of DIW is 200 mL/min or more and 6000 mL/min or less, the range of the dilution ratio of the chemical solution and DIW is 1:1 or more, 1:200 or less (medicine solution: DIW).

在藥液和DIW的CLC中,一般使用差壓式流量計(孔板流量計)。在使用孔板流量計的CLC中,已知的是,由於控制範圍的流量越小,小孔的直徑就越小,因此,相對於流量的壓力損失就大,另一方面,控制範圍的流量越小,控制精度就越好。同樣,已知的是,由於控制範圍的流量越大,小孔的直徑就越大,因此,相對於流量的壓力損失小,另一方面,控制範圍的流量越大,控制精度就越差。 In CLC of chemical liquid and DIW, a differential pressure flowmeter (orifice flowmeter) is generally used. In CLC using an orifice plate flowmeter, it is known that since the smaller the flow rate in the control range, the smaller the diameter of the orifice, the pressure loss relative to the flow rate is large, and on the other hand, the flow rate in the control range is larger. The smaller the value, the better the control accuracy. Also, it is known that since the larger the flow rate in the control range, the larger the diameter of the orifice, the pressure loss relative to the flow rate is small, on the other hand, the larger the flow rate in the control range, the worse the control accuracy.

因此,在本實施方式的藥液供給裝置100中,當將較低流量的藥液或DIW供給到清洗裝置200時,使用可在較低流量的流量範圍控制的藥液CLC113a及藥液CLC123a或DIWCLC111a及DIWCLC121a。由此,能以高的控制精度供給低流量的藥液或DIW。另一方面,當將較高流量的藥液或DIW供給到清洗裝置200時,使用可在較高流量的流量範圍控制的藥液CLC113b及藥液CLC123b或DIWCLC111b及DIWCLC121b。由此,可降低壓力損失來供給高流 量的藥液或DIW。另外,在該情況下控制精度稍許變差,但是,由於所供給的藥液或DIW是高流量,因此,該影響相比於低流量的情況較小。 Therefore, in the chemical solution supply device 100 of the present embodiment, when supplying the chemical solution or DIW with a relatively low flow rate to the cleaning device 200, the chemical solution CLC113a and the chemical solution CLC123a or DIWCLC111a and DIWCLC121a. As a result, a low flow rate of chemical solution or DIW can be supplied with high control accuracy. On the other hand, when supplying the chemical solution or DIW with a relatively high flow rate to the cleaning device 200, the chemical liquid CLC113b and the chemical liquid CLC123b or the DIWCLC111b and DIWCLC121b which can be controlled in the flow rate range of the relatively high flow rate are used. Thereby, the pressure loss can be reduced and a high flow can be supplied amount of liquid medicine or DIW. In addition, in this case, the control accuracy is slightly deteriorated, but since the supplied chemical solution or DIW has a high flow rate, this influence is smaller than that in the case of a low flow rate.

從直列式混合器115、116供給的清洗藥液不僅在上表面清洗部222、242及下表面清洗部223、243中用於基板的清洗,而且還對於在等待部221、241中等待清洗的基板(下一清洗的基板)用於防止基板的氧化。在本實施方式的藥液供給裝置100中,通過同時進行基板的清洗和清洗的等待而提高清洗處理的處理量。在同時進行基板的清洗和清洗的等待的情況下,由於在各個處理中使用清洗藥液,因此,需要高流量的藥液及DIW。因此,在本實施方式中,如上述那樣構成為,使用可控制的流量範圍為一部分重疊的兩個CLC,而可將藥液或DIW供給到清洗裝置200。此處,可控制的流量範圍為一部分重疊的兩個CLC的流量範圍是,一方是較低的流量,另一方是較高的流量。因此,通過使用低流量的流量範圍的CLC而可因應低流量的藥液或DIW的供給處理。另外,通過使用高流量的流量範圍的CLC而可因應高流量的藥液或DIW的供給處理。此外,由於通過同時使用兩個CLC而可將累積了可由兩個CLC控制的流量後的流量供給到清洗裝置200,因此,還可因應像同時進行基板的清洗和清洗的等待的處理那樣的、尤其是需要高流量的清洗藥液的處理。 The cleaning chemicals supplied from the in-line mixers 115 and 116 are used not only for cleaning the substrates in the upper surface cleaning parts 222 and 242 and the lower surface cleaning parts 223 and 243 , but also for cleaning the substrates waiting in the waiting parts 221 and 241 for cleaning. The substrate (substrate to be cleaned next) is used to prevent oxidation of the substrate. In the chemical solution supply device 100 of the present embodiment, the cleaning of the substrate and the waiting for cleaning are performed simultaneously, thereby increasing the throughput of the cleaning process. When the cleaning of the substrate and the waiting for cleaning are performed at the same time, since the cleaning chemical solution is used in each process, a high-flow chemical solution and DIW are required. Therefore, in the present embodiment, as described above, the chemical solution or DIW can be supplied to the cleaning device 200 using two CLCs whose controllable flow rate ranges partially overlap. Here, the controllable flow rate range is the flow rate range of two CLCs partially overlapping, one being the lower flow rate and the other being the higher flow rate. Therefore, by using the CLC in the flow rate range of the low flow rate, it is possible to cope with the supply process of the chemical solution or the DIW of the low flow rate. In addition, by using a CLC with a high flow rate range, it is possible to handle a high flow rate of chemical solution or DIW supply. In addition, by using the two CLCs at the same time, the flow rate obtained by accumulating the flow rate controllable by the two CLCs can be supplied to the cleaning device 200 , and therefore, it is possible to cope with processes such as simultaneous cleaning of the substrate and waiting for cleaning. In particular, it is necessary to process high-flow cleaning chemicals.

下面,說明圖8所示的清洗單元的DIW及藥液的供給處理。圖9是表示圖8所示的清洗單元的DIW及藥液的供給處理的程序圖。另外,從圖8所示的第2藥液稀釋箱160供給到第2藥液清洗部240的DIW及藥液的供給處理,由於是與從第1藥液稀釋箱150供給到第1藥液清洗部220的DIW及藥液的供給處理相同的,因此在此處省略說明。 Next, the DIW and the supply process of the chemical solution in the cleaning unit shown in FIG. 8 will be described. FIG. 9 is a flow chart showing the DIW and chemical solution supply processing in the cleaning unit shown in FIG. 8 . In addition, the supply process of DIW and the chemical solution supplied from the second chemical solution dilution tank 160 to the second chemical solution cleaning unit 240 shown in FIG. Since the DIW of the cleaning unit 220 and the supply process of the chemical solution are the same, the description is omitted here.

當將藥液供給到圖8所示的清洗裝置200的第1藥液清洗部220時,首先,第1藥液稀釋箱150的藥液入口閥51a及藥液入口閥51b打開。由第1藥液稀釋箱150的藥液CLC113a及藥液CLC113b來分別調節藥液的流量,規定流 量的藥液從藥液供給源20被供給到直列式混合器115。如圖9所示,在本實施方式中,在步驟1中,藥液CLC113a及藥液CLC113b供給400mL/min的流量的藥液。 When the chemical solution is supplied to the first chemical solution cleaning unit 220 of the cleaning device 200 shown in FIG. 8 , first, the chemical solution inlet valve 51a and the chemical solution inlet valve 51b of the first chemical solution dilution tank 150 are opened. The flow rate of the chemical liquid is adjusted by the chemical liquid CLC 113a and the chemical liquid CLC 113b of the first chemical liquid dilution tank 150, and the flow rate is predetermined. The amount of the chemical solution is supplied from the chemical solution supply source 20 to the inline mixer 115 . As shown in FIG. 9 , in the present embodiment, in step 1, the chemical liquid CLC 113a and the chemical liquid CLC 113b are supplied with the chemical liquid at a flow rate of 400 mL/min.

同樣,DIW供給配管81上的DIW供給閥86打開,DIW從DIW供給源10被供給到第1藥液稀釋箱150的DIWCLC111a及DIWCLC111b。DIWCLC111a及DIWCLC111b分別對DIW的流量進行調節。通過打開DIW供給閥112a、112b,從而規定流量的DIW從DIWCLC111a及DIWCLC111b被供給到直列式混合器115。如圖9所示,在本實施方式中,在步驟1中,DIWCLC111a及DIWCLC111b供給2100mL/min的流量的DIW。 Similarly, the DIW supply valve 86 on the DIW supply pipe 81 is opened, and DIW is supplied from the DIW supply source 10 to the DIWCLC 111 a and DIWCLC 111 b of the first chemical solution dilution tank 150 . DIWCLC111a and DIWCLC111b respectively adjust the flow rate of DIW. By opening the DIW supply valves 112a and 112b, DIW at a predetermined flow rate is supplied to the inline mixer 115 from the DIWCLC 111a and the DIWCLC 111b. As shown in FIG. 9 , in the present embodiment, in Step 1, DIWCLC 111a and DIWCLC 111b supply DIW at a flow rate of 2100 mL/min.

供給到直列式混合器115的藥液與DIW混合。由此生成的清洗藥液經由清洗藥液配管96而被供給到第1藥液清洗部220。 The chemical solution supplied to the in-line mixer 115 is mixed with DIW. The cleaning chemical solution thus produced is supplied to the first chemical solution cleaning unit 220 via the cleaning chemical solution piping 96 .

為了將清洗藥液供給到第1藥液清洗部220中的上表面清洗部222及下表面清洗部223,清洗藥液供給閥226及清洗藥液供給閥228被打開。由此,如圖9的步驟1所示,上表面清洗部222及下表面清洗部223將清洗藥液供給到基板,清洗基板的上表面及下表面。 In order to supply the cleaning chemical solution to the upper surface cleaning part 222 and the lower surface cleaning part 223 of the first chemical solution cleaning part 220, the cleaning chemical solution supply valve 226 and the cleaning chemical solution supply valve 228 are opened. As a result, as shown in step 1 of FIG. 9 , the upper surface cleaning unit 222 and the lower surface cleaning unit 223 supply cleaning chemicals to the substrate to clean the upper and lower surfaces of the substrate.

為了防止在等待部221中等待清洗的另外的基板產生氧化的現象,第1藥液清洗部220還必須將清洗藥液供給到等待部221。因此,清洗藥液供給閥224被打開。由此,如圖9的步驟1所示,等待部221將清洗藥液供給到基板。通過清洗藥液被供給到基板,從而基板表面被弄濕而不會與空氣接觸,因此,可防止基板表面的氧化。 In order to prevent oxidation of another substrate waiting to be cleaned in the waiting part 221 , the first chemical solution cleaning part 220 must also supply the cleaning chemical solution to the waiting part 221 . Therefore, the cleaning chemical solution supply valve 224 is opened. Thereby, as shown in step 1 of FIG. 9 , the waiting unit 221 supplies the cleaning chemical solution to the substrate. By supplying the cleaning chemicals to the substrate, the surface of the substrate is wetted and does not come into contact with the air, so that oxidation of the surface of the substrate can be prevented.

如圖9的步驟2所示,上表面清洗部222及下表面清洗部223接著步驟1而將清洗藥液供給到基板。另一方面,在等待部221中,在正在等待的基板表面充分被弄濕的情況下,如步驟2所示,停止供給清洗藥液。即,第1藥液清洗部220的清洗藥液供給閥224被關閉。 As shown in step 2 of FIG. 9 , the upper surface cleaning unit 222 and the lower surface cleaning unit 223 supply cleaning chemicals to the substrate following step 1 . On the other hand, in the waiting section 221, when the surface of the waiting substrate is sufficiently wet, as shown in step 2, the supply of the cleaning chemical is stopped. That is, the cleaning chemical solution supply valve 224 of the first chemical solution cleaning unit 220 is closed.

同時,在步驟2中,由第1藥液稀釋箱150的藥液CLC113a及藥液CLC113b來分別調節藥液的流量。即,與停止等待部221供給的清洗藥液的量相應地減少藥液的流量。如圖9所示,在本實施方式中,在步驟2中,藥液CLC113a及藥液CLC113b供給50mL/min的流量的藥液。 At the same time, in step 2, the flow rate of the chemical solution is adjusted by the chemical solution CLC 113a and the chemical solution CLC 113b in the first chemical solution dilution tank 150, respectively. That is, the flow rate of the chemical solution is reduced in accordance with the amount of the cleaning chemical solution supplied from the stop standby unit 221 . As shown in FIG. 9 , in the present embodiment, in step 2, the chemical liquid CLC 113a and the chemical liquid CLC 113b are supplied with the chemical liquid at a flow rate of 50 mL/min.

同樣,在步驟2中,由第1藥液稀釋箱150的DIWCLC111a及DIWCLC111b來分別調節DIW的流量。即,與停止等待部221供給的清洗藥液的量相應地減少DIW的流量。如圖9所示,在本實施方式中,在步驟2中,DIWCLC111a及DIWCLC111b供給1350mL/min的流量的DIW。 Similarly, in step 2, the flow rate of DIW is adjusted by DIWCLC 111a and DIWCLC 111b of the first chemical solution dilution tank 150, respectively. That is, the flow rate of the DIW is decreased according to the amount of the cleaning chemical solution supplied from the stop standby unit 221 . As shown in FIG. 9 , in the present embodiment, in step 2, DIWCLC 111a and DIWCLC 111b supply DIW at a flow rate of 1350 mL/min.

在圖9所示的步驟3及步驟4中,進行清洗後的基板的搬送動作、及清洗後的基板的DIW沖洗動作等。 In step 3 and step 4 shown in FIG. 9 , the conveying operation of the cleaned substrate, the DIW rinsing operation of the cleaned substrate, and the like are performed.

接著,在步驟5至步驟8中,進行與步驟1至步驟4相同的工序。具體來說,用上表面清洗部222及下表面清洗部223對另外基板進行清洗,且使接下來被清洗的另外基板在等待部221等待(步驟5)。停止供給等待部221中的清洗藥液,減少DIW及藥液的流量(步驟6)。搬送清洗後的基板,進行DIW的沖洗動作等(步驟7及步驟8)。 Next, in step 5 to step 8, the same process as step 1 to step 4 is performed. Specifically, the other substrate is cleaned by the upper surface cleaning unit 222 and the lower surface cleaning unit 223, and another substrate to be cleaned next is made to wait in the waiting unit 221 (step 5). The supply of the cleaning chemical solution in the waiting unit 221 is stopped, and the flow rates of the DIW and the chemical solution are reduced (step 6). The cleaned substrate is transported, and the DIW rinsing operation and the like are performed (steps 7 and 8).

如以上說明那樣,在本實施方式的清洗單元中,具有:可控制的流量範圍互相一部分重疊的DIWCLC111a及DIWCLC111b;以及可控制的流量範圍互相一部分重疊的藥液CLC113a及藥液CLC113b,因此,可將可控制的流量範圍作成寬大範圍。因此,在具有對基板進行清洗的上表面清洗部222及下表面清洗部223、和預先使要清洗的基板等待的等待部221的清洗裝置200中,可同時進行如下動作:由上表面清洗部222及下表面清洗部223對基板進行的清洗;以及由等待部221向等待中的基板進行的清洗藥液的供給,與以往技術相比可提高清洗處理的處理量。另外,採用本實施方式的清洗單元,還可因應需要低流量的處理。 As described above, in the cleaning unit of the present embodiment, there are DIWCLC 111a and DIWCLC 111b whose controllable flow rate ranges partially overlap each other, and chemical liquid CLC 113a and chemical liquid CLC 113b whose controllable flow rate ranges partially overlap each other. The controllable flow range is made into a wide range. Therefore, in the cleaning apparatus 200 having the upper surface cleaning unit 222 and the lower surface cleaning unit 223 for cleaning the substrate, and the waiting unit 221 for waiting for the substrate to be cleaned in advance, the following operations can be simultaneously performed: The cleaning of the substrate by the 222 and the lower surface cleaning unit 223 , and the supply of the cleaning chemical to the waiting substrate by the waiting unit 221 can increase the throughput of the cleaning process compared to the prior art. In addition, according to the cleaning unit of the present embodiment, it is also possible to deal with the need for a low flow rate.

另外,本實施方式的清洗單元的藥液供給裝置100構成為,具有第1藥液稀釋箱150、和第2藥液稀釋箱160,但是,根據清洗裝置200的結構,既可僅具有第1藥液稀釋箱150,也可進一步具有另外的藥液稀釋箱。 In addition, although the chemical solution supply device 100 of the cleaning unit of the present embodiment is configured to include the first chemical solution dilution tank 150 and the second chemical solution dilution tank 160, depending on the configuration of the cleaning device 200, only the first chemical solution may be provided. The chemical liquid dilution tank 150 may further include another chemical liquid dilution tank.

以上,說明了本發明的實施方式,但上述的發明的實施方式是用於容易理解本發明的實施方式,不限定本發明。本發明可不脫離其宗旨地進行變更、改進,且對於本發明當然包含其等價物(equivalent)。另外,在能解決上述問題的至少一部分的範圍、或者獲得至少一部分效果的範圍內,可對申請專利範圍及說明書中記載的各結構要素進行任意組合或省略。 As mentioned above, although embodiment of this invention was described, the above-mentioned embodiment of invention is an embodiment for easy understanding of this invention, and does not limit this invention. The present invention can be changed and improved without departing from the gist, and it is a matter of course that the present invention includes its equivalents. In addition, within the range where at least part of the above-mentioned problems can be solved, or the range where at least part of the effects can be obtained, the respective components described in the scope of the claims and the specification can be arbitrarily combined or omitted.

10:DIW供給源 10: DIW supply source

20:第1藥液供給源 20: The first chemical supply source

30:第2藥液供給源 30: Second chemical supply source

50:藥液共用箱 50: liquid medicine sharing box

51:第1藥液入口閥 51: 1st liquid medicine inlet valve

52:壓力計 52: Manometer

60:藥液共用箱 60: liquid medicine sharing box

61:第2藥液入口閥 61: 2nd chemical liquid inlet valve

62:壓力計 62: Manometer

72:第1直列式混合器 72: 1st in-line mixer

73:第2直列式混合器 73: 2nd in-line mixer

81:DIW供給配管 81: DIW supply piping

82:DIW分歧配管 82: DIW branch piping

83:第1DIW配管 83: 1st DIW piping

84:第2DIW配管 84: 2nd DIW piping

86:DIW供給閥86 86: DIW supply valve 86

87:DIW壓力調節器 87: DIW pressure regulator

88:DIW壓力計 88: DIW pressure gauge

91:配管 91: Piping

92:配管 92: Piping

93:第1藥液配管 93: The first chemical solution piping

94:第2藥液配管 94: Second chemical liquid piping

96:第1清洗藥液配管 96: 1st cleaning liquid piping

97:第2清洗藥液配管 97: 2nd cleaning liquid piping

100:藥液供給裝置 100: liquid medicine supply device

110:DIWCLC箱 110: DIWCLC box

111:CLC 111: CLC

112:第1DIW供給閥 112: 1st DIW supply valve

113:第2DIW供給閥 113: 2nd DIW supply valve

120:第1藥液CLC箱 120: The first liquid medicine CLC box

121:CLC 121: CLC

122:第1藥液供給閥 122: The first chemical supply valve

130:第2藥液CLC箱 130: The second liquid medicine CLC box

131:CLC 131: CLC

132:第2藥液供給閥 132: Second chemical supply valve

200:清洗裝置 200: Cleaning device

210:DIW清洗部220 210: DIW Cleaning Section 220

220:藥液清洗部 220: Liquid cleaning department

230:清洗槽 230: Cleaning tank

Claims (6)

一種清洗單元,具有:清洗基板的基板清洗裝置;以及將清洗藥液供給到所述基板清洗裝置的清洗藥液供給裝置, 所述基板清洗裝置具有清洗基板的清洗部; 所述清洗藥液供給裝置具有: 第1配管,該第1配管將藥液從藥液供給源導入; 第2配管,該第2配管從所述第1配管分歧,將所述藥液從所述藥液供給源導入; 混合部,該混合部用於將對藥液和稀釋水進行混合所得到的清洗藥液供給到所述清洗部; 第1藥液流量控制部,該第1藥液流量控制部對所述第1配管內的所述藥液的流量進行控制,並將所述藥液供給到所述混合部; 第2藥液流量控制部,該第2藥液流量控制部對所述第2配管內的所述藥液的流量進行控制,並將所述藥液供給到所述混合部; 第3配管,該第3配管將稀釋水從稀釋水供給源導入; 第1稀釋水流量控制部,該第1稀釋水流量控制部對所述第3配管內的所述稀釋水的流量進行控制; 第4配管,該第4配管從所述第3配管分歧,將所述稀釋水從所述稀釋水供給源導入;以及 第2稀釋水流量控制部,該第2稀釋水流量控制部對所述第4配管內的所述稀釋水的流量進行控制; 所述第1藥液流量控制部構成為能夠在第1範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述第2藥液流量控制部構成為能夠在一部分與所述第1範圍重疊的第2範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述第1稀釋水流量控制部構成為能夠在第3範圍將流量控制,並構成為將流量控制後的稀釋水供給到所述混合部; 所述第2稀釋水流量控制部構成為能夠在一部分與所述第3範圍重疊的第4範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述清洗單元構成為從所述清洗藥液供給裝置之所述混合部,能夠將流量控制後的所述清洗藥液供給到所述基板清洗裝置。A cleaning unit comprising: a substrate cleaning device for cleaning a substrate; and a cleaning chemical solution supply device for supplying a cleaning chemical solution to the substrate cleaning device, The substrate cleaning device has a cleaning part for cleaning the substrate; The cleaning liquid supply device has: a first piping for introducing the chemical solution from the chemical solution supply source; a second piping that branches from the first piping to introduce the chemical solution from the chemical solution supply source; a mixing part, the mixing part is used for supplying the cleaning chemical solution obtained by mixing the chemical solution and the dilution water to the cleaning part; a first chemical solution flow control unit that controls the flow rate of the chemical solution in the first piping and supplies the chemical solution to the mixing unit; a second chemical solution flow control unit that controls the flow rate of the chemical solution in the second piping and supplies the chemical solution to the mixing unit; a third piping that introduces dilution water from a dilution water supply source; a first dilution water flow control unit that controls the flow rate of the dilution water in the third piping; a fourth pipe that branches from the third pipe to introduce the dilution water from the dilution water supply source; and a second dilution water flow control unit that controls the flow rate of the dilution water in the fourth piping; The first chemical solution flow rate control unit is configured to be capable of controlling the flow rate within a first range, and configured to supply the flow rate-controlled chemical solution to the mixing unit; The second chemical solution flow control unit is configured to be capable of controlling the flow rate in a second range partially overlapping the first range, and configured to supply the flow rate-controlled chemical solution to the mixing unit; The first dilution water flow control unit is configured to be capable of controlling the flow rate in a third range, and configured to supply the dilution water after the flow rate control to the mixing unit; The second dilution water flow control unit is configured to be capable of controlling the flow rate in a fourth range partially overlapping the third range, and configured to supply the flow-controlled chemical solution to the mixing unit; The cleaning unit is configured to be capable of supplying the cleaning chemical solution whose flow rate has been controlled to the substrate cleaning device from the mixing section of the cleaning chemical solution supplying device. 如請求項1所述的清洗單元,其中,所述基板清洗裝置具有等待部,該等待部配置等待要由所述清洗部進行清洗的基板,且將清洗藥液供給到等待中的基板。The cleaning unit according to claim 1, wherein the substrate cleaning apparatus includes a waiting unit that arranges substrates waiting to be cleaned by the cleaning unit and supplies cleaning chemicals to the waiting substrates. 如請求項2所述的清洗單元,其中,同時進行由所述清洗部清洗基板、以及由所述等待部向基板供給清洗藥液。The cleaning unit according to claim 2, wherein the cleaning of the substrate by the cleaning unit and the supply of the cleaning chemical solution to the substrate by the waiting unit are performed simultaneously. 如請求項1至3中任一項所述的清洗單元,其中,所述清洗部具有:上表面清洗部,該上表面清洗部構成為,將清洗藥液供給到基板的上表面;以及下表面清洗部,該下表面清洗部構成為,將清洗藥液供給到基板的下表面。The cleaning unit according to any one of claims 1 to 3, wherein the cleaning unit includes: an upper surface cleaning unit configured to supply cleaning chemicals to the upper surface of the substrate; and a lower surface cleaning unit A surface cleaning unit, the lower surface cleaning unit is configured to supply a cleaning chemical solution to the lower surface of the substrate. 如請求項1至3中任一項所述的清洗單元,其中,具有控制裝置,該控制裝置對所述第1藥液流量控制部、所述第2藥液流量控制部、所述第1稀釋水流量控制部、及所述第2稀釋水流量控制部,分別傳送表示規定流量値的信號; 所述第1藥液流量控制部、所述第2藥液流量控制部、所述第1稀釋水流量控制部、及所述第2稀釋水流量控制部各自具有根據所述規定流量値能夠調整開度的閥。The cleaning unit according to any one of claims 1 to 3, further comprising a control device that controls the first chemical solution flow rate control unit, the second chemical solution flow rate control unit, and the first chemical solution flow rate control unit. The dilution water flow control unit and the second dilution water flow control unit respectively transmit a signal representing a predetermined flow value; The first chemical solution flow rate control unit, the second chemical solution flow rate control unit, the first dilution water flow rate control unit, and the second dilution water flow rate control unit each have an adjustable flow rate value according to the predetermined flow rate. opening valve. 一種清洗藥液供給裝置,其具有: 第1配管,該第1配管將藥液從藥液供給源導入; 第2配管,該第2配管從所述第1配管分歧,將所述藥液從所述藥液供給源導入; 混合部,該混合部用於將對藥液和稀釋水進行混合所得到的清洗藥液供給到基板清洗裝置的清洗部; 第1藥液流量控制部,該第1藥液流量控制部對所述第1配管內的所述藥液的流量進行控制,並將所述藥液供給到所述混合部; 第2藥液流量控制部,該第2藥液流量控制部對所述第2配管內的所述藥液的流量進行控制,並將所述藥液供給到所述混合部; 第3配管,該第3配管將稀釋水從稀釋水供給源導入; 第1稀釋水流量控制部,該第1稀釋水流量控制部對所述第3配管內的所述稀釋水的流量進行控制; 第4配管,該第4配管從所述第3配管分歧,將稀釋水從所述稀釋水供給源導入;以及 第2稀釋水流量控制部,該第2稀釋水流量控制部對所述第4配管內的所述稀釋水的流量進行控制; 所述第1藥液流量控制部構成為能夠在第1範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述第2藥液流量控制部構成為能夠在一部分與所述第1範圍重疊的第2範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述第1稀釋水流量控制部構成為能夠在第3範圍將流量控制,並構成為將流量控制後的稀釋水供給到所述混合部; 所述第2稀釋水流量控制部構成為能夠在一部分與所述第3範圍重疊的第4範圍將流量控制,並構成為將流量控制後的藥液供給到所述混合部; 所述清洗藥液供給裝置構成為能夠將流量控制後的所述清洗藥液,從所述混合部供給到裝置外。A cleaning medicinal liquid supply device, which has: a first piping for introducing the chemical solution from the chemical solution supply source; a second piping that branches from the first piping to introduce the chemical solution from the chemical solution supply source; a mixing part, the mixing part is used for supplying the cleaning chemical solution obtained by mixing the chemical solution and the dilution water to the cleaning part of the substrate cleaning device; a first chemical solution flow control unit that controls the flow rate of the chemical solution in the first piping and supplies the chemical solution to the mixing unit; a second chemical solution flow control unit that controls the flow rate of the chemical solution in the second piping and supplies the chemical solution to the mixing unit; a third piping that introduces dilution water from a dilution water supply source; a first dilution water flow control unit that controls the flow rate of the dilution water in the third piping; a fourth pipe that branches from the third pipe to introduce dilution water from the dilution water supply source; and a second dilution water flow control unit that controls the flow rate of the dilution water in the fourth piping; The first chemical solution flow rate control unit is configured to be capable of controlling the flow rate within a first range, and configured to supply the flow rate-controlled chemical solution to the mixing unit; The second chemical solution flow control unit is configured to be capable of controlling the flow rate in a second range partially overlapping the first range, and configured to supply the flow rate-controlled chemical solution to the mixing unit; The first dilution water flow control unit is configured to be capable of controlling the flow rate in a third range, and configured to supply the dilution water after the flow rate control to the mixing unit; The second dilution water flow control unit is configured to be capable of controlling the flow rate in a fourth range partially overlapping the third range, and configured to supply the flow-controlled chemical solution to the mixing unit; The cleaning chemical solution supply device is configured to be capable of supplying the cleaning chemical solution after flow rate control to the outside of the device from the mixing unit.
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