WO2007122994A1 - 基板洗浄装置,基板洗浄方法,基板処理装置 - Google Patents
基板洗浄装置,基板洗浄方法,基板処理装置 Download PDFInfo
- Publication number
- WO2007122994A1 WO2007122994A1 PCT/JP2007/057527 JP2007057527W WO2007122994A1 WO 2007122994 A1 WO2007122994 A1 WO 2007122994A1 JP 2007057527 W JP2007057527 W JP 2007057527W WO 2007122994 A1 WO2007122994 A1 WO 2007122994A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- edge
- wafer
- cleaning
- gas
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 225
- 238000004140 cleaning Methods 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims description 57
- 238000010438 heat treatment Methods 0.000 claims abstract description 77
- 238000012545 processing Methods 0.000 claims description 114
- 239000007789 gas Substances 0.000 claims description 98
- 238000012546 transfer Methods 0.000 claims description 60
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 54
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 27
- 239000001569 carbon dioxide Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 230000001678 irradiating effect Effects 0.000 claims description 16
- 229920002313 fluoropolymer Polymers 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 8
- 235000012431 wafers Nutrition 0.000 description 216
- 229920000642 polymer Polymers 0.000 description 45
- 230000008569 process Effects 0.000 description 44
- 230000007423 decrease Effects 0.000 description 39
- 230000007246 mechanism Effects 0.000 description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 18
- 238000002144 chemical decomposition reaction Methods 0.000 description 17
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 15
- 229910052731 fluorine Inorganic materials 0.000 description 15
- 239000001301 oxygen Substances 0.000 description 15
- 230000007723 transport mechanism Effects 0.000 description 15
- 238000002474 experimental method Methods 0.000 description 11
- 238000005530 etching Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 238000001020 plasma etching Methods 0.000 description 7
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 229910052724 xenon Inorganic materials 0.000 description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02082—Cleaning product to be cleaned
- H01L21/02087—Cleaning of wafer edges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus 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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67115—Apparatus for thermal treatment mainly by radiation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S134/00—Cleaning and liquid contact with solids
- Y10S134/902—Semiconductor wafer
Definitions
- Substrate cleaning apparatus substrate cleaning method, substrate processing apparatus
- the present invention relates to a substrate cleaning apparatus for cleaning an end portion of a substrate such as a semiconductor wafer or a liquid crystal substrate.
- the present invention relates to a substrate cleaning method and a substrate processing apparatus.
- a semiconductor wafer for example, a semiconductor wafer (hereinafter also simply referred to as “wafer”).
- the wafer is subjected to an etching process, a film forming process, and the like, and the wafer processing may cause unwanted deposits to adhere to the edge of the wafer.
- a CF-based film is deposited on the wafer surface using CF-based gas.
- the CF film may continue to the edge of the wafer surface force and further adhere to the back of the edge.
- Patent Document 1 JP-A-5-102101
- Patent Document 2 Japanese Patent Laid-Open No. 10-242098
- Patent Document 1 describes a method for removing a fluorocarbon polymer on a wafer by applying ultraviolet light to the wafer and generating a plasma of nitrogen monoxide and nitrogen.
- the film for example, low-k film: Low-K film
- the film may be damaged by the generation of plasma. It is desirable to remove deposits on the edge of the wafer without damaging it.
- Patent Document 2 includes a holding unit that rotatably holds a wafer and an ultraviolet ray generating unit that irradiates a part of the wafer periphery with ultraviolet rays, and a part of the wafer periphery (when holding the wafer).
- the apparatus which removes the foreign material adhering to the convex-concave part of this is described.
- the UV light from the UV generator can only irradiate part of the wafer edge, so in order to clean the entire periphery of the wafer edge, the wafer must be rotated while being rotated little by little. . This takes time to remove the deposits.
- the force required to adjust the rotation axis of the holding part and the center of the wafer or to adjust the position of the UV generating part increases the number of control steps required.
- the present invention has been made in view of such a problem, and an object of the present invention is to make the entire periphery of the substrate end without polishing the substrate end or generating plasma. It is an object of the present invention to provide a substrate cleaning apparatus and the like that can perform cleaning at once with simple control. Means for solving the problem
- a substrate cleaning apparatus for removing deposits (for example, fluorocarbon polymer) adhering to an end portion of a substrate.
- a mounting table for a heating means for heating the end of the substrate; an ultraviolet irradiation means for irradiating ultraviolet light toward the end of the substrate; and a gas (for example, at least oxygen atoms) on the end surface of the substrate.
- Flow forming means for forming a flow of gas), wherein the heating means, the ultraviolet irradiation means, and the flow forming means are arranged so as to surround the substrate in the vicinity of the end of the substrate.
- the entire periphery of the edge of the substrate is heated at once by the heating means, and the substrate
- the entire circumference of the edge of the plate can be irradiated with ultraviolet rays at once by the ultraviolet irradiation means, and the flow of the gas can be formed on the surface of the edge over the entire circumference of the edge of the substrate by the flow forming means.
- the deposits attached to the edge of the substrate can be vaporized and removed by a chemical decomposition reaction. According to this, since the edge of the substrate is not polished, there is no need to treat dust generated by polishing. In addition, since no plasma is generated, the film (eg Low-K film) formed on the substrate is not damaged.
- the ultraviolet irradiating means includes, for example, an ultraviolet lamp arranged in a ring shape around the entire periphery in the vicinity of the end of the substrate.
- An ultraviolet lamp may be composed of, for example, a single ultraviolet lamp formed in an annular shape, or a plurality of ultraviolet lamps may be arranged in an annular shape. With such an ultraviolet lamp, it is possible to irradiate the entire periphery of the substrate edge with ultraviolet rays at once.
- the heating means includes, for example, a heating lamp arranged in an annular shape in the vicinity of the edge of the substrate, and an annular cover member provided so as to cover the heating lamp and opened on the substrate side.
- the inner surface of the cover member is formed of a member that can reflect the light of the heating lamp, and is configured in such a shape that the reflected light is concentrated on the end of the substrate. According to this, since the entire periphery of the substrate edge can be irradiated with light at one time and heated, the heating time can be shortened.
- the heating lamp is composed of a halogen lamp, so that it can be heated more effectively locally by radiant heat from far infrared rays.
- the flow forming means includes, for example, a discharge pipe arranged in an annular shape over the entire circumference of the substrate end portion inside the substrate end portion, and the substrate end portion outside the substrate end portion. And a suction pipe arranged in an annular shape over the entire circumference.
- the discharge pipe and the suction pipe are each constituted by an annular pipe, and the discharge pipe is formed with a discharge port for discharging gas along the circumference thereof, and the suction pipe is provided along the circumference thereof.
- an inlet for sucking gas is formed.
- the discharge port and the suction port respectively You may comprise by the slit provided along the periphery of each piping, and you may comprise by many holes provided along the periphery of each said piping.
- the discharge pipe force is discharged toward the end of the board and sucked in by the suction pipe to form a gas flow that goes to the outside of the inner force of the board over the entire periphery of the end surface of the board. can do.
- the suction pipe may be provided with a concentration sensor for detecting a concentration of a reaction product gas generated by a chemical reaction caused by an adhering matter adhering to the end of the substrate.
- a concentration sensor is, for example, a sensor that detects the concentration of carbon dioxide generated when the fluorocarbon polymer attached to the edge of the substrate is removed.
- the heating means may include a heater arranged in an annular shape on the back side of the entire periphery of the end portion of the substrate, so that the entire periphery of the substrate end portion is heated by the heater. This makes it possible to heat the entire periphery of the substrate edge at once.
- a shielding plate arranged so as to surround the edge of the substrate may be provided. This shielding plate blocks the ultraviolet rays from the ultraviolet irradiation means and prevents it from hitting the surface on the substrate. In addition, this shielding plate prevents the gas from the flow forming means from flowing around the substrate, so that the gas flow can be efficiently formed at the edge of the substrate.
- a substrate cleaning method for a substrate cleaning apparatus for removing deposits attached to an end of a substrate wherein the substrate cleaning apparatus includes: A heating means for heating an end portion of the substrate placed on a mounting table, an ultraviolet irradiation means for irradiating ultraviolet rays toward the end portion of the substrate, and a gas flow are formed on the end surface of the substrate.
- the flow forming means is arranged to surround the substrate in the vicinity of the edge of the substrate, and when the substrate edge is cleaned by the substrate cleaning apparatus, the heating means After the heating of the substrate is started, the ultraviolet irradiation means starts irradiating the edge of the substrate with ultraviolet rays, and the flow forming means forms a gas flow on the surface of the substrate edge, thereby A base characterized by cleaning A plate cleaning method is provided.
- cleaning of the entire periphery of the substrate end can be performed at a time with simple control.
- the substrate edge can be cleaned in a short time.
- the irradiation of ultraviolet rays is started, and a gas flow is formed on the surface of the substrate edge, so that the substrate edge rises to a certain temperature before the ultraviolet irradiation starts.
- the efficiency of the chemical decomposition reaction for removing the kimono can be increased.
- the flow forming means includes, for example, a discharge pipe disposed annularly inside the substrate end portion, and a suction pipe disposed annularly outside the substrate end portion.
- the suction pipe is provided with a concentration sensor for detecting the concentration of carbon dioxide generated when the fluorocarbon polymer adhering to the end of the substrate is removed, and during the cleaning of the end of the substrate.
- the concentration sensor may monitor the concentration of carbon dioxide sucked into the suction pipe, and the cleaning of the substrate edge may be terminated when the concentration of carbon dioxide falls below a predetermined threshold value.
- a processing unit including a plurality of processing chambers for processing a substrate in a vacuum pressure atmosphere, and the substrate is connected to the processing unit.
- a substrate processing apparatus having a transfer unit having a transfer chamber for delivering the substrate in an atmospheric pressure atmosphere to a substrate storage container for storing the substrate, wherein the substrate processing apparatus is connected to the transfer chamber and has an atmospheric pressure atmosphere.
- a cleaning chamber for removing deposits adhering to the end portion of the substrate, and the cleaning chamber includes a heating means for heating the end portion of the substrate placed on a mounting table, and an end portion of the substrate.
- An ultraviolet irradiation means for irradiating ultraviolet rays toward the substrate and a flow forming means for forming a gas flow on the end surface of the substrate are arranged so as to surround the substrate in the vicinity of the end of the substrate.
- a substrate processing apparatus is provided.
- the ultraviolet irradiation means includes a low-pressure mercury lamp arranged in an annular shape in the vicinity of the edge of the substrate.
- a processing unit including a plurality of processing chambers for processing a substrate in a vacuum pressure atmosphere, and the substrate is connected to the processing unit.
- the substrate is delivered to and from the substrate storage container for storing the substrate in an atmospheric pressure atmosphere.
- a substrate processing apparatus having a transfer unit having a transfer chamber, wherein one of the plurality of process chambers is a cleaning chamber for removing deposits adhering to the edge of the substrate in a vacuum pressure atmosphere;
- the cleaning chamber includes a heating unit that heats an end portion of the substrate placed on a mounting table, an ultraviolet irradiation unit that irradiates ultraviolet rays toward the end portion of the substrate, and a gas on the surface of the end portion of the substrate.
- a substrate processing apparatus characterized in that a flow forming means for forming a flow is arranged so as to surround the substrate in the vicinity of an end portion of the substrate.
- the ultraviolet irradiation means includes an excimer lamp arranged in an annular shape in the vicinity of the end portion of the substrate.
- FIG. 1 is a cross-sectional view showing a configuration example of a substrate processing apparatus according to a first embodiment of the present invention.
- FIG. 2 is an explanatory diagram for explaining a process in which a deposit such as a CF polymer adheres to the wafer edge.
- FIG. 3 is an enlarged cross-sectional view of the edge of the wafer when a plasma etching process is performed on the wafer surface using a CF-based gas.
- FIG. 4 is an enlarged cross-sectional view of the wafer edge when a CF-based film is formed on the wafer surface by a CVD method using CF-based gas.
- FIG. 5 is a perspective view showing an external configuration example of a cleaning chamber according to the embodiment.
- FIG. 6 is a partial cross-sectional view of a cleaning chamber that works in the same embodiment.
- FIG. 7 A graph showing the amount of F decrease when a CF polymer adhering to a wafer is irradiated with ultraviolet rays for a predetermined time while changing the wafer temperature.
- FIG. 8 A graph showing the amount of C decrease when the CF polymer adhering to the wafer is irradiated with ultraviolet rays for a predetermined time while changing the wafer temperature.
- FIG. 9 A graph showing the amount of F decrease when the CF polymer adhering to the wafer is irradiated with ultraviolet rays for a predetermined time while changing the oxygen concentration of the gas. [10] This is a graph of the amount of C decrease when the CF polymer adhering to the wafer is irradiated with ultraviolet rays for a predetermined time while changing the oxygen concentration of the gas.
- FIG. 11 is a graph showing the decrease in C and F when the oxygen concentration of the gas is changed within a range of 21% or less and the CF film on the wafer is irradiated with ultraviolet rays for a predetermined time.
- FIG. 12 is a flowchart showing a specific example of a cleaning process that works on the same embodiment.
- FIG. 13 A perspective view showing an external configuration example of a cleaning chamber according to the second embodiment of the present invention.
- FIG. 14 is a partial cross-sectional view of a cleaning chamber that works on the same embodiment.
- Linear motor drive mechanism 180 Processing unit side transport mechanism 182 Base
- FIG. 1 is a cross-sectional view showing a schematic configuration of a substrate processing apparatus according to a first embodiment of the present invention.
- the substrate processing apparatus 100 includes a plurality of processing chambers for performing various processes such as a film forming process and an etching process on a substrate such as a semiconductor wafer (hereinafter also simply referred to as “wafer”) W in a vacuum pressure atmosphere. And a transport unit 120 for transporting Ueno and W to / from the processing unit 110.
- the transport unit 120 is configured as shown in FIG. 1, for example.
- the transfer unit 120 has a transfer chamber 130 for transferring wafers between a substrate storage container, for example, a cassette container 132 (132A to 132C) described later and a processing unit 110.
- the transfer chamber 130 is formed in a box shape having a substantially polygonal cross section.
- a plurality of cassette bases 131 (131A to 131C) are arranged in parallel on one side surface constituting the long side of the polygonal section in the transfer chamber 130.
- Each of these cassette stands 131A to 131C is configured to be able to place cassette containers 132A to 132C as an example of a substrate storage container.
- each cassette container 132 (132A to 132C), for example, by holding the end of the wafer W by the holding unit, for example, a maximum of 25 wafers W can be placed in multiple stages at equal pitches and accommodated.
- the inside has a sealed structure filled with, for example, an N gas atmosphere.
- the transfer chamber 130 is configured such that the wafer W can be transferred into and out of the transfer chamber 130 via a gate valve 133 (133A to 133C).
- the number of cassette stands 131 and cassette containers 132 is not limited to the case shown in Fig. 1.
- a cleaning chamber 200 as an example of a substrate cleaning apparatus is connected to the side surface of the transfer chamber 130.
- a cleaning process is performed on a wafer W that has been subjected to a predetermined process such as etching or film formation to remove unwanted deposits attached to the end of the wafer W (for example, the bevel). Is called. Details of the configuration of the cleaning chamber 200 will be described later.
- An end of the transfer chamber 130 that is, one side surface forming a short side having a substantially polygonal cross section, includes a rotary mounting table 138 and an optical sensor 139 for optically detecting the peripheral edge of the wafer W.
- An orienter (bri-alignment stage) 136 is provided as a positioning device. In this orienter 136, for example, the orientation flat of the wafer W is detected and aligned.
- a transfer unit side transfer mechanism (transfer chamber transfer mechanism) 170 for transferring the wafer W along the longitudinal direction (the arrow direction shown in FIG. 1) is provided.
- a base 172 to which the transfer unit-side transfer mechanism 170 is fixed is supported so as to be slidable on a guide rail 174 provided in the center of the transfer chamber 130 along the length direction.
- Each of the base 172 and the guide rail 174 is provided with a linear motor mover and stator.
- a linear motor drive mechanism 176 for driving the linear motor is provided at the end of the guide rail 174.
- a controller 300 is connected to the linear motor drive mechanism 176. As a result, the linear motor drive mechanism 176 is driven based on the control signal from the control unit 300, and the transfer unit side transfer mechanism 170 moves along the guide rail 174 in the direction of the arrow together with the base 172. .
- the transfer unit side transfer mechanism 170 is composed of a double arm mechanism having two picks 173A and 173B, so that two wafers W can be handled at a time.
- the wafer W when the wafer W is loaded / unloaded into / from the cassette container 132, the orienter 136, each load lock chamber 160M, 160N, etc., the wafer W can be loaded / unloaded.
- the number of picks of the transport unit side transport mechanism 170 is not necessarily limited to the above, and for example, a single arm mechanism having only one pick may be used.
- the processing unit 110 is formed, for example, on Ueno and W around a common transfer chamber 150 formed in a polygon (for example, a hexagon) as shown in FIG.
- Multiple processing chambers 140 first to sixth processing chambers 140A to 140F
- load lock chambers 1 60M, 160N that perform predetermined processing such as processing (for example, plasma CVD processing) and etching processing (for example, plasma etching processing) It is configured with airtight connection.
- Each of the processing chambers 140A to 140F is a process previously stored in a storage medium of the control unit 300 or the like. Based on the recipe, for example, the wafer W is subjected to, for example, the same kind of processing or different kinds of processing.
- a mounting table 142 (142A to 142F) for mounting the wafer W is provided. Note that the number of processing rooms 140 is not limited to the case shown in FIG.
- the common transfer chamber 150 transfers wafers W between the processing chambers 140A to 140F as described above, or between the processing chambers 140A to 140F and the first and second load lock chambers 160M and 160N. Has a function to carry in and out.
- the common transfer chamber 150 is formed in a polygonal shape (for example, a hexagonal shape), and the processing chambers 140 (140A to 140F) are connected to the surroundings via gate valves 144 (144A to 144F), respectively.
- the tips of the first and second load lock chambers 160M and 160N are connected to each other through gate valves (vacuum pressure side gate valves) 154M and 154N, respectively.
- the base ends of the first and second load lock chambers 160M and 160N are connected to the other side of the transfer chamber 130 through the gate valves (atmospheric pressure side gate valves) 162M and 162N, respectively, forming the long side of a substantially polygonal cross section. Connected! Speak.
- gate valves atmospheric pressure side gate valves
- the first and second load lock chambers 160M and 160N have a function of temporarily holding the wafer W and adjusting the pressure to pass to the next stage.
- delivery tables 164M and 164N on which the wafer W can be placed are provided.
- the space between the common transfer chamber 150 and each of the processing chambers 140A to 140F and the space between the common transfer chamber 150 and each of the load lock chambers 160M and 160N are airtight. It is configured to be openable and closable and is made into a cluster tool so that it can communicate with the common transfer chamber 150 as needed. Further, the first and second load lock chambers 160M and 160N and the transfer chamber 130 can be opened and closed in an airtight manner.
- a processing unit side transfer mechanism (common transfer chamber transfer mechanism) 180 is provided, which is composed of, for example, an articulated arm configured to be able to bend, lift, and turn.
- the processing unit side transport mechanism 180 is rotatably supported by the base 182.
- the base 182 is configured to be slidable on, for example, a slide drive motor (not shown) on the guide rail 184 disposed in the common transfer chamber 150 over the distal end side. .
- the base 182 is connected with a flexible arm 186 for passing wiring such as a motor for turning the arm.
- the load lock chambers 160M and 160N and the processing chambers 140A are moved by sliding the processing unit side transport mechanism 180 along the guide rail 184. Access to ⁇ 140F.
- the processing unit side transport mechanism 180 when the processing unit side transport mechanism 180 is accessed to the load lock chambers 160M and 160N and the processing chambers 140A and 140F arranged opposite to each other, the processing unit side transport mechanism 180 is moved along the guide rail 184. Located near the base end of the common transfer chamber 150. Further, when the processing unit side transport mechanism 180 is accessed to the four processing chambers 140B to 140E, the processing unit side transport mechanism 180 is positioned along the guide rail 184 closer to the front end side of the common transport chamber 150. As a result, it is possible to access all the load lock chambers 160M and 160N and the processing chambers 140A to 140F connected to the common transfer chamber 150 by one processing unit side transfer mechanism 180.
- the processing unit side transport mechanism 180 has two picks 183A and 183B, and can handle two wafers W at a time.
- the configuration of the processing unit side transport mechanism 180 is not limited to the above, and may be configured by two transport mechanisms.
- a first transfer mechanism consisting of an articulated arm configured to be able to bend, raise, lower, and swivel near the proximal end of the common transfer chamber 150, and bend, lift, and lower, bendable toward the distal end of the common transfer chamber 150.
- a second transport mechanism composed of a multi-joint arm configured may be provided.
- the number of picks of the processing unit side transport mechanism 180 is not limited to two, and for example, it may have only one pick.
- the substrate processing apparatus 100 includes the control of the transfer unit side transfer mechanism 170, the process unit side transfer mechanism 180, each gate knob 133, 144, 154, 162, the orienter 136, the cleaning chamber 200, etc.
- a control unit 300 that controls the operation of the entire processing apparatus is provided.
- the control unit includes a central processing unit (CPU) that constitutes the main unit, a memory that stores programs and recipes, and a storage medium such as a hard disk.
- Substrate processing The apparatus 100 is operated by the control unit 300 based on a predetermined program. For example, the UE and W transported from any of the cassette containers 132A to 132C by the transport unit side transport mechanism 170 are transported to the orienter 136, transferred to the rotary mounting table 138 of the orienter 136, and positioned there. The The positioned wafer W is unloaded from the orienter 136 and loaded into the load lock chamber 160M or 160N. At this time, if the processing completion wafer W in which all necessary processing has been completed is in the load lock chamber 160M or 160N, the processing completion UE and W are unloaded, and then the unprocessed wafer W is loaded.
- the wafer W loaded into the load lock chamber 160M or 160N is unloaded from the load lock chamber 160M or 160N by the processing unit side transfer mechanism 180, and loaded into the processing chamber 140 where the wafer W is processed.
- the process is executed.
- the processed wafer W that has been processed in the processing chamber 140 is unloaded from the processing chamber 140 by the processing unit side transfer mechanism 180.
- the wafer W is loaded into another processing chamber 140 where the next processing is performed, and the mounting table constituting the lower electrode. Place wafer W on 142.
- a predetermined processing gas is introduced from a single head constituting the upper electrode facing the lower electrode, and a predetermined high-frequency power is applied to each of the electrodes to convert the processing gas into plasma. Then, predetermined processing such as etching and film formation is performed on the wafer W by the plasma.
- an undesired deposit P As shown in FIG. 2, since the upper portion of the mounting table 142 is generally slightly smaller than the diameter of the wafer W, when the wafer W is mounted on the mounting table 142, the end of the wafer W is mounted over the entire circumference. It protrudes from the mounting table 142. On the mounting table 142, for example, a focus ring 146 formed in a ring shape so as to surround the periphery of the wafer W is disposed in order to alleviate the discontinuity of the bias potential in the wafer W plane.
- the inner peripheral surface of the focus ring 146 is slightly larger than the diameter of the wafer W so as not to contact the wafer W, there is no gap between the end surface of the wafer W and the inner peripheral surface of the focus ring 146. There are some gaps. For this reason, etching, film formation, etc.
- the plasma of the processing gas also enters the gap between the wafer W and the focus ring 146, and undesired deposits adhere to the back side (for example, the bevel portion) of the wafer W. Sometimes. In some cases, the focus ring 146 may not be provided, but in that case as well, undesired deposits may adhere to the edge of the wafer W.
- FIG. 3 is an enlarged cross-sectional view of the end portion of the wafer W when a plasma etching process is performed on the wafer surface with, for example, a fluorocarbon (CF) gas as a processing gas.
- CF fluorocarbon
- a by-product (depot) which is a fluorocarbon polymer (CF polymer)
- CF polymer fluorocarbon polymer
- FIG. 4 is an enlarged cross-sectional view of the edge of the wafer W when a CF-based film is formed on the wafer surface by a CVD method using, for example, a CF-based gas as a processing gas.
- the CF film produced by the CVD method continues the surface force of the wafer W to the edge of the edge, and further to the back side (for example, the back side of the edge including the bevel).
- the CF film Q at the edge of the wafer W is the part that should originally be formed, so it is generated and adhered by plasma etching as described above. It is an unwanted deposit as well as a by-product.
- deposits for example, CF polymer P or CF film
- Q is one of the yield factors of semiconductor devices formed on wafer W.
- the wafer W is returned to one of the cassette containers 132A to 132C, the wafer edge comes into contact with the holding part in the cassette container. If it adheres to the surface, there is a risk that the yield of the semiconductor device to be manufactured will decrease. Therefore, it is necessary to remove such deposits on the edge of the wafer by cleaning.
- the wafer W that has been processed in each processing chamber 140 is transferred to the cleaning chamber 200 via the load lock chamber 160M or 160N, and the cleaning chamber 200 After cleaning the wafer edge, return to the original cassette containers 132A to 132C. Since the deposits on the wafer edge are removed by such a cleaning process, the wafer edge adheres when the wafer W is returned to, for example, the cassette containers 132A to 132C. An object can be prevented from peeling off.
- the cleaning process in the cleaning chamber 200 will be described with reference to FIG.
- the CF polymer P for example, adheres to the edge of the wafer, W
- the CF polymer P is heated while heating the edge of the wafer W to a predetermined temperature (eg, about 200 ° C).
- a flow of gas containing oxygen (O 2) is irradiated.
- the generated active oxygen (O) undergoes a decomposition reaction with the carbon (C) of the CF polymer P as shown in the chemical reaction formula (2) below, so that carbon dioxide (CO) and fluorine (F )become.
- CO carbon dioxide
- F fluorine
- the CF polymer P is removed by vaporization by chemical decomposition reaction.
- the removal speed is also increased.
- the chemical decomposition reaction for removing the deposit was explained by taking the CF polymer P adhered to the wafer edge by the etching process as shown in Fig. 3 as an example.
- the CF film Q attached to the edge of the wafer by the film formation process basically consists of C atoms and F nuclear power, and can be removed by the same chemical decomposition reaction as above.
- the wafer edge is heated, By irradiating ultraviolet rays and generating a gas flow containing oxygen (o),
- a cleaning process is performed to remove deposits (for example, CF polymer) adhering to the wafer edge.
- deposits for example, CF polymer
- the wafer edge is not polished, so that it is possible to save time and effort for processing dust generated by polishing, and there is no problem of contamination due to such dust.
- the film eg, Low-K film
- the cleaning process that is powerful in this embodiment is optimal for cleaning the edge of the wafer W on which a low-K film or the like is formed.
- the cleaning chamber 200 is provided with a container 202.
- a mounting table 204 on which the wafer W is placed, and a cleaning mechanism 206 for cleaning the end of the wafer W (for example, the back side of the bevel). is provided.
- the cleaning mechanism 206 is configured as shown in FIGS. 5 and 6, for example.
- FIG. 5 is a diagram showing an outline of the appearance when the cleaning mechanism 206 is viewed at an obliquely lower force
- FIG. 6 is a longitudinal sectional view of the vicinity of the end portions of the UE and W in the cleaning mechanism 206.
- the cleaning mechanism 206 is configured in an annular shape as shown in FIGS. 1 and 5, and is disposed so as to surround the entire periphery of the end portion of the wafer W placed on the mounting table 204. As a result, the entire periphery of the edge of the wafer W can be cleaned at a time, so the cleaning time can be shortened.
- the cleaning mechanism 206 includes a heating means 210 that heats the edge of the wafer W, an ultraviolet irradiation means 220 that irradiates ultraviolet light toward the edge of the wafer W,
- the surface of the edge of the wafer W (for example, O gas) is ejected toward the edge of the wafer W (for example, O gas)
- a flow forming means 230 for forming a gas flow on the surface of the bevel part).
- the heating means 210 includes a heating lamp 212 that heats the end portion of the wafer W by irradiating light toward the end portion of the wafer W.
- the heating lamp 212 is annularly arranged in the vicinity of the edge of the wafer W over the entire circumference. For example, as shown in FIG. It is located outside the edge and slightly below the wafer w. With this arrangement, the edge of the wafer W (eg, the back side of the bevel) can be directly irradiated with light and heated. By heating the edge of the wafer W, the deposit (for example, CF polymer) P attached to the edge of the wafer W is also heated.
- the deposit for example, CF polymer
- the heating lamp 212 may be constituted by, for example, a single heating lamp formed in an annular shape, or a plurality of heating lamps may be arranged in an annular shape. As a result, the entire circumference of the edge of the wafer W can be irradiated with light at one time and heated, so the heating time can be shortened.
- the heating lamp 212 is composed of, for example, a far infrared lamp such as a halogen lamp or an infrared lamp (IR lamp). Further, since the heating means 210 irradiates light toward the edge of the wafer W, only the edge of the wafer W can be locally heated. In this regard, the halogen lamp is more suitable as the heating means 210 because it can be more effectively locally heated by far-infrared radiation heat.
- the heating means 210 includes an annular cover member 214 that is provided so as to cover the heating lamp 212 and is open on the wafer W side.
- the cover member 214 shown in FIG. 6 is a specific example in a case where the cover member 214 is configured to cover from the upper part of the heating lamp 212 to the lower part through the outer part.
- the cover member 214 is preferably made of a member that can reflect the light of the heating lamp 212 on its inner surface, such as stainless steel.
- the cover member 214 is preferably configured to have a shape in which a part of the light of the heating lamp 212 reflected by the inner surface of the cover member 214 is concentrated on the end portion (for example, the bevel portion) of the wafer W.
- the light from the heating lamp 212 is not only directly irradiated to the end of the wafer W, but also reflected by the inner surface of the cover member 214 and concentrated on the end of the wafer W. Therefore, the edge of the wafer W can be efficiently heated locally. Further, since the light from the heating lamp 212 can be prevented from hitting the surface on the wafer W by the cover member 214, the film formed on the surface of the wafer and the wafer is not damaged.
- the heating temperature is set to a temperature at which a chemical decomposition reaction (for example, the above chemical reaction formula (2)) that removes at least the deposit (for example, CF polymer) occurs.
- the heating temperature is preferably set to about 250 ° C or lower.
- the chemical decomposition reaction according to the chemical reaction equation (2) above is performed. In order to proceed, it is preferable to set the temperature to 280 ° C or higher.
- the chemical decomposition reaction according to the above chemical reaction formula (2) is sufficiently advanced even at about 250 ° C or lower by irradiating ultraviolet rays. Can do. Therefore, for example, the above chemical decomposition reaction occurs even at about 25 ° C (room temperature).
- the higher the heating temperature the faster the reaction and the faster the deposits can be removed from the edge of the wafer, so the heating temperature is preferably higher than normal temperature.
- the heating temperature is preferably set to 150 ° C or lower, and may be set to 100 ° C or lower.
- the heating temperature may be set according to the film quality (heat resistance) on the wafer! For Ueno and W with low heat resistance and a film (eg resist film) formed, the heating temperature is set to 150 ° C or lower (or 100 ° C or lower), for example. For the wafer W on which the low dielectric constant film (Low-K film) is formed, the heating temperature may be set to about 200 ° C. to 250 ° C., for example. As a result, regardless of the quality of the film formed on the wafer W, deterioration of the film can be prevented and the time required for the cleaning process can be shortened.
- the film quality heat resistance
- CF-based polymer adhering to the wafer W is squeezed with a CF-based gas (for example, CF gas).
- a CF-based gas for example, CF gas
- the reconic oxide film When the reconic oxide film is plasma-etched, it adheres to the wafer W, and its CF polymer film thickness is approximately 9 nm.
- the amount of C before UV irradiation is approximately 20% of the entire CF polymer
- the amount of F before UV irradiation is approximately 60% of the entire CF polymer.
- Figures 7 and 8 show the amount of decrease in percentage based on the amount of C and F before UV irradiation.
- the amount of F before UV irradiation when the amount of F before UV irradiation is 0%, it decreases smoothly to 300 seconds at 25 ° C. For example, it decreases by approximately 6% after 60 seconds and decreases to approximately 15% after 300 seconds.
- C decreases only to about 32% even after 300 seconds at 25 ° C, but already decreases to about 32% at 60 seconds at 150 ° C, and further at 60 seconds at 200 ° C. Decrease by more than 40% over 32%.
- increasing the temperature from 150 ° C to 200 ° C or more is particularly effective in reducing C.
- the ultraviolet irradiation means 220 includes an ultraviolet lamp (UV lamp) 222, for example.
- the ultraviolet ray lamp 222 is disposed on the back side of the bevel portion of the wafer W at a position where ultraviolet rays can be irradiated.
- the ultraviolet lamp 222 is placed immediately below the bevel portion of the wafer W at a position separated by a predetermined distance (for example, several mm).
- a predetermined distance for example, several mm.
- the ultraviolet lamp 222 may be constituted by, for example, a single ultraviolet lamp formed in an annular shape, or a plurality of ultraviolet lamps may be arranged in an annular shape. As a result, it is possible to irradiate the edge of the wafer W at once, so that the time for removing the deposits can be shortened.
- the ultraviolet lamp 222 is, for example, a xenon (Xe) excimer lamp (wavelength 172 nm), low-pressure water, Various lamps such as silver lamps (wavelengths of about 185 nm and about 254 nm) can be used.
- Xe xenon
- Various lamps such as silver lamps (wavelengths of about 185 nm and about 254 nm) can be used.
- the UV lamp 222 which emits UV light with a short wavelength, so that the distance from the deposit is shorter.
- an ultraviolet lamp 222 having a relatively long ultraviolet wavelength for example, a low-pressure mercury lamp.
- an ultraviolet lamp 222 having a relatively short ultraviolet wavelength for example, a xenon (Xe) excimer lamp.
- the flow forming means 230 is provided with a discharge pipe 232 and a suction pipe 234 constituted by an annular pipe, and a gas is discharged from the discharge pipe 232 toward the end of the wafer W and sucked through the suction pipe 234. It forms a gas flow along the edge surface (eg, behind the bevel).
- the discharge pipe 232 is arranged annularly over the entire circumference of the wafer end inside the wafer end, and the suction pipe 234 is arranged annularly over the entire circumference of the wafer end outside the wafer end.
- the discharge pipe 232 is arranged on the lower side of the wafer W placed on the stage 204 so as to surround the entire circumference of the stage 204, and the suction pipe 234 is placed in the cover member 214.
- C It is arranged so as to surround the entire circumference of the end of w.
- the suction pipe 234 is not necessarily provided in the cover member 214. If the gas flow can be formed on the surface of the wafer end with the discharge pipe 232, the suction pipe 234 may be provided at any position near the wafer end. That's right.
- Gas for example, O gas
- O gas is discharged to the discharge pipe 232 toward the end surface of the wafer W.
- a discharge port 233 is formed.
- the discharge port 233 is provided along the entire circumference of the discharge pipe 232.
- the discharge port 233 may be configured by a single slit provided along the circumference of the discharge pipe 232, or may be configured by a number of holes provided over the entire circumference along the circumference of the discharge pipe 232.
- the suction pipe 234 is formed with a suction port 235 for sucking gas at a position substantially opposite to the discharge pipe 232.
- the suction pipe 234 is connected to, for example, a pump (not shown) (for example, an exhaust pump). Even if the suction port is 235 mm, it is provided along the entire circumference of the suction pipe 234.
- the suction port 235 may be constituted by a single slit provided along the circumference of the suction pipe 234, or may be constituted by a plurality of holes provided along the circumference of the suction pipe 234. But ⁇ .
- gas for example, O gas
- O gas can be discharged and sucked at a time toward the entire circumference of the end portions of Ueno and W.
- the entire periphery of the edge of the wafer W is
- the gas discharged from the discharge pipe 232 may be any gas that generates active oxygen (O) that decomposes the deposits on the wafer W, for example, the CF polymer P, that is, a gas containing at least oxygen atoms. .
- Such gas is preferably O gas.
- the O concentration is preferably
- the O gas concentration is 1% to 3%.
- a very low concentration of about is preferred.
- Gas and inert gas e.g N gas
- a mixed gas in which the O 2 concentration is adjusted to about 1% to 3% by adjusting the mixing ratio of 2 2 may be used.
- Na Air (atmosphere) also contains O at a certain concentration (eg, about 21%), so instead of O gas,
- ozone (o) is also purple by the chemical reaction formula (1).
- ozone gas can be used instead of o gas.
- Figure 9 is a graph showing the amount of decrease in F in the CF polymer
- Figure 10 is a graph showing the amount of decrease in C in the CF polymer.
- the decrease in F and C was measured when the flow rate was 1. OlZmin and 1.5 lZmin. Of these, for the flow rate 1. OlZmin, a gas flow was formed using dry air, and for the flow rate 1.5 lZmin, a gas flow was formed only by suction.
- the wafer used in this experiment is the same as that used in the experiments in Figs. 7 and 8, and the wafer temperature is 25 ° C (room temperature).
- the O concentration is not necessarily 100%.
- CF polymer can be removed if a gas flow is formed even at a low concentration of about 21%. It can also be seen that if a gas flow can be formed even at low concentrations, the CF polymer can be removed by gas inhalation alone.
- Fig. 1 1 shows O concentrations of 0% (no oxygen), 1%, 3%, 7%, 10%, 15% and 21%, respectively. In this way, the O concentration and the CF-based film of the CF film
- the surface analysis of the sample wafer after the above treatment was performed in order to measure the decrease of the CF film.
- the surface is irradiated with an electron beam at an angle of about 5 °, and based on the electron spectrum emitted by this, all the atoms contained in the region up to a predetermined depth of the surface force (underlying Si and O And the ratio of C and F of CF film to C and F of CF film was measured. Therefore, according to the graph shown in Fig. 11, as the ratio of C and F to the whole atom decreases, C and F decrease, and the CF film decreases.
- the amount of decrease in C and F increases, especially when the O concentration is about 1 to 3%.
- the CF polymer can be removed more efficiently by forming the flow.
- the concentration of CO is determined by the chemical decomposition reaction of CF polymer P, which is an adhering substance on wafer W (see above).
- a reaction product gas concentration sensor 1 for detecting the CO concentration in the suction pipe 234 is used.
- a concentration sensor 236 is provided as an example, and the CO concentration is monitored by the concentration sensor 236 for the cleaning process starting force at the wafer edge. Specifically, the concentration sensor 236 is connected to the control unit 300,
- the control unit 300 monitors the CO concentration. And the CO concentration is below a certain threshold.
- the cleaning process is terminated at the end.
- the end point of the wafer edge cleaning process can be detected with high accuracy, so that the efficiency of the cleaning process is improved and the deposits can be reliably removed in a shorter time.
- FIG. 12 is a flowchart showing a specific example of the cleaning process according to the first embodiment.
- the heating lamp 212 is turned on in step S110 to start heating the wafer edge, and in step S120, a predetermined time (for example, several seconds) is started. Wait for the progress.
- a predetermined time for example, several seconds
- the predetermined time is preferably determined according to the set temperature at the wafer edge. For example, the higher the set temperature, the longer the predetermined time.
- step S 130 the ultraviolet lamp 222 is turned on to irradiate the wafer edge with ultraviolet light, and the flow forming means 230 is turned on to turn the gas on the wafer edge surface (for example, O gas).
- the gas on the wafer edge surface for example, O gas
- step S140 the CO concentration is measured by the concentration sensor 236, and then in step S150.
- step S140 If it is determined that the concentration is not less than the predetermined threshold, the process returns to step S140, and the CO concentration is less than the predetermined threshold.
- step S160 If it is determined that there is, the heating lamp 212 is turned off in step S160.
- step S170 the ultraviolet lamp 222 is turned off, the flow forming means 230 is turned off, and the series of cleaning processes is completed.
- the entire circumference of the wafer edge is heated at once by the heating lamp 212, and active oxygen (O) is generated by the ultraviolet rays irradiated to the entire circumference of the wafer edge by the ultraviolet lamp 222.
- This active oxygen (O) causes a chemical decomposition reaction of the chemical reaction formula (1) above, and the deposit (CF polymer) around the entire edge of the wafer is removed at once.
- the cleaning chamber 200 that is useful for the first embodiment, the deposits on the entire periphery of the wafer edge.
- the wafer edge can be cleaned in a very short time.
- FIG. 13 is a view showing an outline of the appearance of the cleaning mechanism 206 of the cleaning chamber that is applied to the second embodiment when the oblique lower force is also seen
- FIG. 14 is a longitudinal section near the edge of the wafer W in the cleaning mechanism 206.
- the cleaning mechanism 206 is also arranged so as to surround the end portion of the wafer W placed on the mounting table 204 in the circumferential direction. As a result, the entire periphery of the edge of the wafer W can be cleaned at a time, so that the cleaning time can be shortened.
- an annular heater 250 is arranged on the back side of the end of the wafer W, and the end of the wafer W is Is to be heated.
- an induction heater is used as the heater 250.
- the shielding plate 240 is arranged so as to surround the periphery of the wafer W.
- the ultraviolet rays from the ultraviolet irradiation means 220 are blocked and can be prevented from hitting the surface of Ueno and W.
- the configuration of the ultraviolet irradiation means 220 is the same as that shown in FIG.
- the structure of the flow forming means 230 is almost the same as that shown in FIG. 6, but the discharge pipe 232 shown in FIG. 14 is arranged below the heater 250 and is located at the end of the wafer W (for example, on the back side of the bevel).
- a discharge port 233 is provided so as to discharge gas toward.
- the suction pipe 234 is disposed below the shielding plate 240 and is provided with a suction port 235 force S so that a gas flow is formed on the end surface of the wafer (for example, the back side of the bevel portion).
- step S110 the heater 250 is turned on instead of the heating lamp 212, and in step S160, the heater 250 is turned off instead of the heating lamp 212.
- active oxygen (o) is generated by the ultraviolet rays irradiated to the entire periphery of the wafer end by the ultraviolet lamp 222.
- This active oxygen (O) causes a chemical decomposition reaction of the above chemical reaction formula (1). Therefore, the deposit (CF polymer) around the entire edge of the wafer is removed at once.
- the cleaning chamber 200 which is effective in the first and second embodiments, is connected to the transfer chamber 130 of the substrate processing apparatus 100, and the case where the wafer edge cleaning process is performed in an atmospheric pressure atmosphere will be described.
- the cleaning chamber 200 it is not necessarily limited to this.
- an ultraviolet light source having a long wavelength such as a low pressure mercury lamp is used as the ultraviolet irradiation means 220. It is preferable to use it.
- the wafer edge cleaning process is performed in a vacuum atmosphere, so that the ultraviolet irradiation means 220 is, for example, xenon (Xe) excimer It is preferable to use an ultraviolet light source with a short wavelength such as a lamp.
- Xe xenon
- the present invention can be applied to a substrate cleaning apparatus, a substrate cleaning method, and a substrate processing apparatus for cleaning an end portion of a substrate such as a semiconductor wafer or a liquid crystal substrate.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
- Cleaning In General (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800002147A CN101313389B (zh) | 2006-04-20 | 2007-04-04 | 基板清洗装置 |
US12/297,746 US20090065027A1 (en) | 2006-04-20 | 2007-04-04 | Substrate cleaning apparatus, substrate cleaning method, and substrate treatment apparatus |
US13/558,876 US8945412B2 (en) | 2006-04-20 | 2012-07-26 | Substrate cleaning apparatus, substrate cleaning method, and substrate processing apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006116327 | 2006-04-20 | ||
JP2006-116327 | 2006-04-20 | ||
JP2007-074326 | 2007-03-22 | ||
JP2007074326A JP4994074B2 (ja) | 2006-04-20 | 2007-03-22 | 基板洗浄装置,基板洗浄方法,基板処理装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/297,746 A-371-Of-International US20090065027A1 (en) | 2006-04-20 | 2007-04-04 | Substrate cleaning apparatus, substrate cleaning method, and substrate treatment apparatus |
US13/558,876 Division US8945412B2 (en) | 2006-04-20 | 2012-07-26 | Substrate cleaning apparatus, substrate cleaning method, and substrate processing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007122994A1 true WO2007122994A1 (ja) | 2007-11-01 |
Family
ID=38624900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/057527 WO2007122994A1 (ja) | 2006-04-20 | 2007-04-04 | 基板洗浄装置,基板洗浄方法,基板処理装置 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20090065027A1 (ja) |
JP (1) | JP4994074B2 (ja) |
KR (1) | KR101012886B1 (ja) |
CN (1) | CN101313389B (ja) |
WO (1) | WO2007122994A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102436138A (zh) * | 2011-07-12 | 2012-05-02 | 上海华力微电子有限公司 | 一种紫外线掩模板干法清洗设备 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5048552B2 (ja) * | 2007-03-22 | 2012-10-17 | 東京エレクトロン株式会社 | 基板洗浄装置及び基板処理装置 |
JP5478145B2 (ja) * | 2009-08-18 | 2014-04-23 | 東京エレクトロン株式会社 | ポリマー除去装置およびポリマー除去方法 |
US8603292B2 (en) * | 2009-10-28 | 2013-12-10 | Lam Research Corporation | Quartz window for a degas chamber |
US8584612B2 (en) * | 2009-12-17 | 2013-11-19 | Lam Research Corporation | UV lamp assembly of degas chamber having rotary shutters |
US8492736B2 (en) | 2010-06-09 | 2013-07-23 | Lam Research Corporation | Ozone plenum as UV shutter or tunable UV filter for cleaning semiconductor substrates |
JP5937456B2 (ja) * | 2012-08-07 | 2016-06-22 | 東京エレクトロン株式会社 | 基板洗浄装置および基板洗浄ユニット |
JP6211884B2 (ja) * | 2013-10-10 | 2017-10-11 | 株式会社ディスコ | ウェーハの加工方法 |
KR101575129B1 (ko) * | 2014-01-13 | 2015-12-08 | 피에스케이 주식회사 | 기판 이송 장치 및 방법, 그리고 기판 처리 장치 |
JP6705083B2 (ja) * | 2016-02-01 | 2020-06-03 | サムコ株式会社 | プラズマ洗浄装置およびプラズマ洗浄方法 |
DE102017108076A1 (de) * | 2017-04-13 | 2018-10-18 | Ist Metz Gmbh | Vorrichtung zur Oberflächenbehandlung von Objekten |
KR102433558B1 (ko) * | 2019-07-11 | 2022-08-19 | 세메스 주식회사 | 기판 처리 장치 및 기판 처리 방법 |
KR102288382B1 (ko) * | 2019-09-20 | 2021-08-11 | 대전대학교 산학협력단 | 플라즈마에칭공정상의 l-fc 제거 방법 및 그 시스템 |
CN111508820B (zh) * | 2020-03-25 | 2021-07-16 | 长江存储科技有限责任公司 | 清洗方法 |
US11798799B2 (en) * | 2021-08-09 | 2023-10-24 | Applied Materials, Inc. | Ultraviolet and ozone clean system |
WO2024101144A1 (ja) * | 2022-11-07 | 2024-05-16 | 東京エレクトロン株式会社 | 基板処理装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01204426A (ja) * | 1988-02-10 | 1989-08-17 | Nec Corp | 固体表面清浄化方法およびその装置 |
JPH0332022A (ja) * | 1989-06-29 | 1991-02-12 | Hitachi Ltd | 有機物除去装置 |
JPH10242098A (ja) * | 1997-03-03 | 1998-09-11 | Miyazaki Oki Electric Co Ltd | ウエハ清浄化装置及びウエハ清浄化方法 |
JP2003035962A (ja) * | 2001-07-23 | 2003-02-07 | Tokyo Electron Ltd | 基板処理方法およびそのシステム |
JP2003218007A (ja) * | 2002-01-22 | 2003-07-31 | Tokyo Electron Ltd | 基板処理装置及び基板処理方法 |
JP2003234303A (ja) * | 2002-02-07 | 2003-08-22 | Dainippon Screen Mfg Co Ltd | 熱処理装置 |
JP2004096086A (ja) * | 2002-07-08 | 2004-03-25 | Tokyo Electron Ltd | 処理装置及び処理方法 |
JP2006049870A (ja) * | 2004-07-09 | 2006-02-16 | Sekisui Chem Co Ltd | 基材外周処理方法及び装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5246526A (en) * | 1989-06-29 | 1993-09-21 | Hitachi, Ltd. | Surface treatment apparatus |
JPH05102101A (ja) | 1991-02-15 | 1993-04-23 | Fujitsu Ltd | 半導体装置の製造方法 |
KR100257279B1 (ko) * | 1996-06-06 | 2000-06-01 | 이시다 아키라 | 주변노광장치 및 방법 |
TW385488B (en) * | 1997-08-15 | 2000-03-21 | Tokyo Electron Ltd | substrate processing device |
JP4245743B2 (ja) * | 1999-08-24 | 2009-04-02 | 株式会社半導体エネルギー研究所 | エッジリンス装置およびエッジリンス方法 |
US7038173B2 (en) * | 2002-02-07 | 2006-05-02 | Dainippon Screen Mfg. Co., Ltd. | Thermal processing apparatus and thermal processing method |
US20050260771A1 (en) * | 2002-07-08 | 2005-11-24 | Mitsuaki Iwashita | Processing device and processing method |
US7091612B2 (en) * | 2003-10-14 | 2006-08-15 | Infineon Technologies Ag | Dual damascene structure and method |
US7642649B2 (en) * | 2003-12-01 | 2010-01-05 | Texas Instruments Incorporated | Support structure for low-k dielectrics |
US7404874B2 (en) * | 2004-06-28 | 2008-07-29 | International Business Machines Corporation | Method and apparatus for treating wafer edge region with toroidal plasma |
EP1801861B1 (en) * | 2004-07-09 | 2012-10-03 | Sekisui Chemical Co., Ltd. | Method and device for treating outer periphery of a substrate |
US20080017613A1 (en) * | 2004-07-09 | 2008-01-24 | Sekisui Chemical Co., Ltd. | Method for processing outer periphery of substrate and apparatus thereof |
JP4276614B2 (ja) * | 2004-11-25 | 2009-06-10 | 住友ゴム工業株式会社 | 空気入りタイヤ |
US7396412B2 (en) * | 2004-12-22 | 2008-07-08 | Sokudo Co., Ltd. | Coat/develop module with shared dispense |
-
2007
- 2007-03-22 JP JP2007074326A patent/JP4994074B2/ja not_active Expired - Fee Related
- 2007-04-04 CN CN2007800002147A patent/CN101313389B/zh not_active Expired - Fee Related
- 2007-04-04 US US12/297,746 patent/US20090065027A1/en not_active Abandoned
- 2007-04-04 KR KR1020087025454A patent/KR101012886B1/ko not_active IP Right Cessation
- 2007-04-04 WO PCT/JP2007/057527 patent/WO2007122994A1/ja active Application Filing
-
2012
- 2012-07-26 US US13/558,876 patent/US8945412B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01204426A (ja) * | 1988-02-10 | 1989-08-17 | Nec Corp | 固体表面清浄化方法およびその装置 |
JPH0332022A (ja) * | 1989-06-29 | 1991-02-12 | Hitachi Ltd | 有機物除去装置 |
JPH10242098A (ja) * | 1997-03-03 | 1998-09-11 | Miyazaki Oki Electric Co Ltd | ウエハ清浄化装置及びウエハ清浄化方法 |
JP2003035962A (ja) * | 2001-07-23 | 2003-02-07 | Tokyo Electron Ltd | 基板処理方法およびそのシステム |
JP2003218007A (ja) * | 2002-01-22 | 2003-07-31 | Tokyo Electron Ltd | 基板処理装置及び基板処理方法 |
JP2003234303A (ja) * | 2002-02-07 | 2003-08-22 | Dainippon Screen Mfg Co Ltd | 熱処理装置 |
JP2004096086A (ja) * | 2002-07-08 | 2004-03-25 | Tokyo Electron Ltd | 処理装置及び処理方法 |
JP2006049870A (ja) * | 2004-07-09 | 2006-02-16 | Sekisui Chem Co Ltd | 基材外周処理方法及び装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102436138A (zh) * | 2011-07-12 | 2012-05-02 | 上海华力微电子有限公司 | 一种紫外线掩模板干法清洗设备 |
Also Published As
Publication number | Publication date |
---|---|
KR101012886B1 (ko) | 2011-02-08 |
US20120298132A1 (en) | 2012-11-29 |
US8945412B2 (en) | 2015-02-03 |
CN101313389A (zh) | 2008-11-26 |
JP4994074B2 (ja) | 2012-08-08 |
CN101313389B (zh) | 2010-06-09 |
US20090065027A1 (en) | 2009-03-12 |
JP2007311768A (ja) | 2007-11-29 |
KR20080109033A (ko) | 2008-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4994074B2 (ja) | 基板洗浄装置,基板洗浄方法,基板処理装置 | |
JP5371854B2 (ja) | 基板処理装置および基板処理方法 | |
KR102166974B1 (ko) | 에칭 후 폴리머의 제거 및 하드마스크 제거의 향상을 위한 방법 및 하드웨어 | |
US6620251B2 (en) | Substrate processing method and substrate processing apparatus | |
KR100320585B1 (ko) | 레지스트 처리장치 | |
US6098637A (en) | In situ cleaning of the surface inside a vacuum processing chamber | |
TW200811916A (en) | Cluster tool for advanced front-end processing | |
US20070196011A1 (en) | Integrated vacuum metrology for cluster tool | |
US20070134821A1 (en) | Cluster tool for advanced front-end processing | |
KR20080037565A (ko) | 열 프로세스에 의한 에칭된 챔버로부터 할로겐 잔류물들을제거하기 위한 통합 방법 | |
US20080047577A1 (en) | Substrate Cleaning Device and Cleaning Method Thereof | |
US20150136186A1 (en) | System for processing substrates with two or more ultraviolet light sources that provide different wavelengths of light | |
US20230230811A1 (en) | Surface modification for metal-containing photoresist deposition | |
JP5048552B2 (ja) | 基板洗浄装置及び基板処理装置 | |
US20080230096A1 (en) | Substrate cleaning device and substrate processing apparatus | |
TW200426898A (en) | Substrate processing system and manufacturing method of semiconductor device | |
JP2004096086A (ja) | 処理装置及び処理方法 | |
TWI753353B (zh) | 基板處理方法以及基板處理裝置 | |
TW200403751A (en) | Processing unit and processing method | |
TWI660434B (zh) | 基板處理方法及基板處理裝置 | |
JP4299638B2 (ja) | 基板処理装置および基板処理方法 | |
TWI538086B (zh) | 用於基板處理器真空室中抑制氧化物生長的系統及方法 | |
US20090143894A1 (en) | Bevel/backside polymer removing method and device, substrate processing apparatus and storage medium | |
JP7307861B2 (ja) | 半導体製造方法及び半導体製造装置 | |
WO2024053386A1 (ja) | 基板処理システム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780000214.7 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07740963 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020087025454 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12297746 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07740963 Country of ref document: EP Kind code of ref document: A1 |