TW202117465A - Positioning device, exposure device and article manufacturing method capable of measuring the position of a mounting table with high accuracy - Google Patents

Positioning device, exposure device and article manufacturing method capable of measuring the position of a mounting table with high accuracy Download PDF

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TW202117465A
TW202117465A TW109134697A TW109134697A TW202117465A TW 202117465 A TW202117465 A TW 202117465A TW 109134697 A TW109134697 A TW 109134697A TW 109134697 A TW109134697 A TW 109134697A TW 202117465 A TW202117465 A TW 202117465A
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mounting table
positioning device
original plate
wall portion
plate
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TW109134697A
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Chinese (zh)
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TWI811569B (en
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本間将人
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日商佳能股份有限公司
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
    • G03F7/7085—Detection arrangement, e.g. detectors of apparatus alignment possibly mounted on wafers, exposure dose, photo-cleaning flux, stray light, thermal load
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/70691—Handling of masks or workpieces
    • G03F7/70716—Stages
    • G03F7/70725—Stages control
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/70691—Handling of masks or workpieces
    • G03F7/707—Chucks, e.g. chucking or un-chucking operations or structural details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/70691—Handling of masks or workpieces
    • G03F7/70716—Stages
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/70691—Handling of masks or workpieces
    • G03F7/70775—Position control, e.g. interferometers or encoders for determining the stage position
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70—Microphotolithographic exposure; Apparatus therefor
    • G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
    • G03F7/70858—Environment aspects, e.g. pressure of beam-path gas, temperature
    • G03F7/70866—Environment aspects, e.g. pressure of beam-path gas, temperature of mask or workpiece
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
    • G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
    • G03F9/7003—Alignment type or strategy, e.g. leveling, global alignment
    • G03F9/7019—Calibration
    • 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
    • H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Computer Hardware Design (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Atmospheric Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Abstract

The present invention provides a technology that is advantageous for measuring the position of a mounting table with high accuracy. A positioning device for positioning a plate, which includes a mounting table capable of holding the plate and moving in a first direction; and a measuring part that emits light in the first direction, and measures the position of the mounting table in the first direction based on the light reflected by a reflecting member provided on the upper surface of the mounting table; the mounting table has a wall part between the plate and the reflecting member in the first direction, this wall part is used for reducing an intrusion of the gas around the plate into an optical path of the measuring part due to the movement of the mounting table in the first direction, and the wall part is configured to have an upper end that is higher than the upper surface of the plate, and is arranged separately from the plate and the reflecting member.

Description

定位裝置、曝光裝置及物品之製造方法Positioning device, exposure device and article manufacturing method

本發明涉及對板進行定位的定位裝置、包括該定位裝置的曝光裝置以及物品的製造方法。The present invention relates to a positioning device for positioning a board, an exposure device including the positioning device, and a manufacturing method of an article.

作為在液晶面板或半導體器件的製造工序(光刻工序)中使用的裝置之一，已知一邊使原版與基板相對地掃描一邊對基板進行曝光的曝光裝置。在這樣的曝光裝置中，為了在基板上高精度地形成圖案，要求提高保持原版、基板的載置台的定位精度，為此需要高精度地測量載置台的位置。 在載置台的位置的測量中，一般能夠使用雷射干涉儀，但在雷射干涉儀中，由於測量光路上的氣體的溫度、壓力、濕度等的波動而引起的測量光路上的折射率的變化可能成為測量精度的降低(測量誤差)的主要原因。例如，在原版中，由於在基板的曝光中被照明而溫度上升，因此若在原版上產生的熱隨著原版載置台的移動而向周圍擴展並侵入到測量光路，則原版載置台的位置的測量精度可能降低。另外，為了防止原版的模糊，有時用比其周圍低濕度的氣體(吹掃氣體)充滿原版的配置空間。即使在這種情況下，若低濕度的氣體隨著原版載置台的移動而侵入到測量光路，則原版載置台的位置的測量精度也可能降低。 在專利文獻1中公開了一種具備干涉儀的測量裝置，該干涉儀朝向設置於載置台的側面的反射鏡射出光，接受由反射鏡反射的光與參照光的干涉光而檢測載置台的位置。在專利文獻1所公開的測量裝置中，用於將從氣體吹出部朝向載置台吹出的氣體向干涉儀的光路整流而高效地引導的構造體(整流板)被設置成，從上下夾置該光路的一部分以及反射鏡。 先前技術文獻 專利文獻 專利文獻1：日本特開2012-209401號公報 發明之概要 發明所欲解決之課題 如專利文獻1所公開的那樣，在反射鏡和結構體設置於載置台的側面的結構中，隨著載置台的移動，載置臺上(例如原版上)的氣體有時會流入載置台的側面。在該情況下，在載置台的側面的附近的測量光路上，由從氣體吹出部吹出並被構造體引導的氣體和從載置臺上流動來的氣體產生紊流(氣體的波動)，載置台的位置的測量精度可能降低。As one of the apparatuses used in the manufacturing process (photolithography process) of a liquid crystal panel or a semiconductor device, an exposure apparatus that exposes the substrate while scanning the original plate facing the substrate is known. In such an exposure apparatus, in order to form a pattern on a substrate with high accuracy, it is required to improve the positioning accuracy of a mounting table that holds the original plate and the substrate. For this reason, the position of the mounting table must be measured with high accuracy. In the measurement of the position of the mounting table, generally a laser interferometer can be used, but in a laser interferometer, the measurement of the refractive index on the optical path caused by the fluctuation of the temperature, pressure, humidity, etc. of the gas on the measurement optical path Variation may become the main reason for the decrease in measurement accuracy (measurement error). For example, in the original plate, the temperature rises due to illumination during the exposure of the substrate. Therefore, if the heat generated on the original plate expands to the surroundings as the original plate stage moves and penetrates into the measurement optical path, the position of the original plate stage The measurement accuracy may be reduced. In addition, in order to prevent blurring of the original plate, sometimes a gas (purge gas) with lower humidity than its surroundings is used to fill the original plate's arrangement space. Even in this case, if low-humidity gas intrudes into the measurement optical path along with the movement of the original plate mounting table, the measurement accuracy of the position of the original plate mounting table may decrease. Patent Document 1 discloses a measuring device equipped with an interferometer that emits light toward a mirror provided on the side surface of a mounting table, receives interference light between the light reflected by the mirror and the reference light, and detects the position of the mounting table . In the measurement device disclosed in Patent Document 1, a structure (rectification plate) for rectifying and efficiently guiding the gas blown from the gas blowing portion toward the mounting table to the optical path of the interferometer is provided so that the rectifier plate is sandwiched from above and below. Part of the optical path and the mirror. Prior art literature Patent literature Patent Document 1: Japanese Patent Application Publication No. 2012-209401 Summary of the invention The problem to be solved by the invention As disclosed in Patent Document 1, in a structure in which a mirror and a structure are provided on the side of the mounting table, as the mounting table moves, gas on the mounting table (for example, the original plate) may flow into the mounting table. side. In this case, in the measurement optical path near the side surface of the mounting table, the gas blown out from the gas blowing part and guided by the structure and the gas flowing from the mounting table generate turbulence (gas fluctuations), and carry The measurement accuracy of the position of the setting table may be reduced.

因此，本發明的目的在於提供一種有利於用於高精度地測量載置台的位置的技術。 解決問題之技術手段 為了實現上述目的，作為本發明的一技術方案的定位裝置，是對板進行定位的定位裝置，其特徵在於，該定位裝置包括：載置台，能夠保持前述板並在第1方向上移動；以及測量部，在前述第1方向上射出光，並基於由設置於前述載置台的上表面之上的反射構件反射的光，測量前述載置台在前述第1方向上的位置，前述載置台在前述第1方向上的前述板與前述反射構件之間具有壁部，該壁部用於減少因前述載置台向前述第1方向的移動而前述板的周圍的氣體侵入到前述測量部的光路的情形，前述壁部構成為其上端比前述板的上表面高，且與前述板以及前述反射構件分離地配置。 本發明的進一步的目的或其它的技術方案能夠通過以下參照附圖說明的優選的實施方式來明確。 發明之效果 根據本發明，例如能夠提供一種有利於用於高精度地測量載置台的位置的技術。Therefore, an object of the present invention is to provide a technique that is advantageous for measuring the position of a mounting table with high accuracy. Technical means to solve the problem In order to achieve the above-mentioned object, the positioning device as a technical solution of the present invention is a positioning device for positioning a board, characterized in that the positioning device includes: a mounting table capable of holding the aforementioned board and moving in a first direction; and The measuring unit emits light in the first direction, and measures the position of the mounting table in the first direction based on the light reflected by the reflecting member provided on the upper surface of the mounting table. The mounting table is in the first direction. There is a wall between the plate and the reflecting member in the first direction, and the wall is used to reduce the intrusion of gas around the plate into the optical path of the measuring part due to the movement of the mounting table in the first direction The wall portion is configured such that its upper end is higher than the upper surface of the plate, and is arranged separately from the plate and the reflecting member. The further purpose of the present invention or other technical solutions can be clarified by the preferred embodiments described below with reference to the accompanying drawings. Effect of invention According to the present invention, for example, it is possible to provide a technique that is advantageous for measuring the position of the mounting table with high accuracy.

以下，參照附圖詳細說明實施方式。此外，以下的實施方式並不限定權利要求書所涉及的發明。在實施方式中記載有多個特徵，但這些多個特徵未必都是發明所必須的特徵，另外，多個特徵也可以任意地組合。並且，在附圖中，對相同或同樣的結構標注相同的附圖標記，並省略重複的說明。 [第1實施方式] [曝光裝置的結構] 對本發明的第1實施方式進行說明。圖1是表示本實施方式的曝光裝置100的整體結構的概略圖。本實施方式的曝光裝置100是通過一邊掃描原版M和基板W一邊對基板W進行曝光，從而將原版M的圖案轉印到基板上的步進掃描方式的曝光裝置。這樣的曝光裝置100也被稱為掃描曝光裝置或掃描器。在本實施方式中，原版M例如是石英制的掩模(標線片)，形成有要向基板W中的多個投射區域的每一個轉印的電路圖案。另外，基板W是塗敷有光抗蝕劑的晶圓，能夠使用例如單晶矽基板等。 曝光裝置100能夠包括照明光學系統IO、能夠保持原版M並移動的原版載置台11、投影光學系統PO、能夠保持基板W並移動的基板載置台21、以及控制部CNT。控制部CNT例如由具有CPU、記憶體的計算機構成，並且與裝置內的各部電連接，統一控制裝置整體的動作。在此，在以下的說明中，將與從照明光學系統IO射出並向原版M入射的光的光軸平行的軸向設為Z軸方向，將在與該光軸垂直的面內相互正交的2個軸向設為X軸方向以及Y軸方向。 照明光學系統IO將從水銀燈、ArF準分子雷射、KrF準分子雷射等光源LS射出的光整形為例如帶狀或圓弧狀的狹縫光，利用該狹縫光對原版M的一部分進行照明。透過了原版M的一部分的光作為反映了該原版M的一部分的圖案的圖案光入射到投影光學系統PO。投影光學系統PO具有規定的投影倍率，通過圖案光將原版M的圖案投影到基板上(具體而言，基板上的抗蝕劑)。原版M和基板W分別由原版載置台11和基板載置台21保持，且分別配置在經由投影光學系統PO光學共軛的位置(投影光學系統PO的物體面和像面)上。控制部CNT一邊使原版載置台11以及基板載置台21相互同步一邊以與投影光學系統PO的投影倍率對應的速度比進行相對掃描(在本實施方式中，將原版M以及基板W的掃描方向設為Y軸方向(第1方向))。由此，能夠將原版M的圖案轉印到基板上。 [定位裝置的結構] 接著，對進行板的定位的定位裝置進行說明。在本實施方式中，對作為板進行原版M的定位的定位裝置10進行說明，但在作為板進行基板W的定位的情況下也能夠應用同樣的結構的定位裝置。 圖2是表示本實施方式的定位裝置10A的結構的概略圖。圖2(a)表示定位裝置10A的側視圖，圖2(b)表示定位裝置10A的俯視圖。定位裝置10A例如能夠包括：原版載置台11，能夠保持原版M並至少在Y軸方向(第1方向)上移動；以及測量部12，對Y軸方向上的原版載置台11的位置進行測量。 測量部12例如由雷射干涉儀構成，向設置於原版載置台11的反射構件13(反射鏡)射出光，基於來自該反射構件13的反射光與參照光的干涉，能夠測量Y軸方向上的原版載置台11的位置。在圖2所示的例子中，多個(2個)測量部12在X軸方向上分離地配置。這樣，通過使用多個測量部12，也能夠測量在θ方向(繞Z軸的旋轉方向)上的原版載置台11的旋轉。另外，反射構件13能夠設置在原版載置台11的上表面S上。在本實施方式的情況下，如圖2所示，反射構件13由從原版載置台11的上表面S向+Z方向突出的支承部16支承。在此，所謂原版載置台11的上表面S，例如是原版載置台11中的包括保持原版M的保持面的面。 在定位裝置10A中，若在從測量部12射出的光的光路(測量光路)12a中產生氣體的溫度、濕度等的波動(氛圍波動)，則因此測量光路12a的折射率變化，有時產生測量精度的降低(測量誤差)。因此，在本實施方式的定位裝置10A中，能夠設置吹出用於使測量光路12a的氛圍穩定化的氣體14a的吹出部14。吹出部14例如能夠以在測量部12的測量光路12a中形成沿著Y軸方向的氣體的流動的方式朝向原版載置台11吹出氣體。從吹出部14吹出的氣體14a除了使測量光路12a的氛圍穩定化之外，有時還用於防止原版M的模糊或冷卻原版載置台11。作為從吹出部14吹出的氣體14a，例如可以使用清潔空氣、清潔乾燥空氣、氮氣等溫度、濕度被保持(調整)為規定範圍內的清潔的氣體。 另外，由於原版M在基板W的曝光中被照明而溫度上升，因此當在原版M上產生的熱隨著原版載置台11的移動而向周圍擴散並侵入到測量光路12a時，測量部12對原版載置台11的位置的測量精度可能降低。另外，為了防止原版M的模糊，有時用比其周圍低濕度的氣體(吹掃氣體)充滿原版M的配置空間。即使在這種情況下，若低濕度的氣體隨著原版載置台11的移動而侵入到測量光路，則測量部12對原版載置台11的位置的測量精度也可能降低。另外，以下有時將來自原版M的帶有熱量的氣體和供給到原版M的配置空間的氣體(吹掃氣體)統稱為“原版M的周圍氣體”。 因此，在本實施方式的定位裝置10A中，在原版載置台11的上表面S的反射構件13(支承部16)與原版M之間設置有壁部17。通過這樣設置壁部17，能夠減少伴隨著原版載置台11的移動而原版M的周圍氣體移動並侵入到測量光路12a的情形。具體而言，如圖3所示，當原版載置台11按照箭頭標記V移動時，原版M的周圍氣體開始向朝向測量光路12a的方向(-X方向)移動。可是，開始移動的原版M的周圍氣體如箭頭標記A所示碰撞到壁部17，其移動方向(流動的朝向)被改變為遠離測量光路12a的方向。因此，能夠減少(防止)原版M的周圍氣體侵入到測量光路12a的情形。 壁部17構成為其高度(Z軸方向)高於原版M的上表面。壁部17的高度越高，越能夠將原版M的周圍氣體的移動方向引導(變換)為遠離測量光路12a的方向，使該周圍氣體的流動與測量光路12a之間的距離增加。這樣，若使原版M的周圍氣體的流動與測量光路12a之間的距離增加，則能夠減少原版M的周圍氣體侵入到測量光路12a的情形。並且，在該情況下，能夠利用從吹出部14吹出的氣體14a使原版M的周圍氣體的流動從測量光路12a進一步分離，因此能夠進一步減少原版M的周圍氣體侵入到測量光路12a的情形。 另外，壁部17的寬度(X軸方向的長度)可以為原版M的寬度(X軸方向的長度)以上。壁部17的寬度越寬，越能夠將移動的原版M的周圍氣體向遠離測量光路12a的方向引導而使該周圍氣體的流動與測量光路12a之間的距離增加。另外，X軸方向能夠定義為在與原版載置台11的上表面S平行的面內垂直於掃描方向(X軸方向、第1方向)的方向(第2方向)。在此，如上所述，壁部17的高度越高越好，壁部17的寬度越寬越好，但壁部17的高度和寬度例如能夠根據原版載置台11的尺寸或原版載置台11能夠移動的空間的尺寸來決定。 從Z軸方向觀察(俯視時)，壁部17不限於矩形形狀，也可以具有能夠增加改變原版M的周圍氣體的移動方向的效果的其它的形狀。圖4(a)～(d)表示壁部17的形狀例。圖4(a)所示的壁部17具有X軸方向側的端部向遠離原版M的方向(+Y方向)折彎成“L” 字狀的形狀。圖4(b)所示的壁部17具有X軸方向側的端部向朝向原版M的方向(-Y方向)折彎成“L”字狀的形狀。图4(c)所示的壁部17具有X轴方向侧的端部向遠離原版M的方向(+Y方向)折彎成“く”字状的形状。圖4(d)所示的壁部17具有X軸方向側的側面傾斜的形狀(即，俯視時的形狀具有梯形形狀)。另外，壁部17的形狀並不限定於具有曲率或厚度局部不同等圖4所示的形狀。另外，在利用壁部17處的空氣阻力而對原版載置台11的移動造成影響的情況下，也可以將壁部17設為傾斜形狀，以使得該空氣阻力比期望值小。 另一方面，從吹出部14吹出的氣體14a的流動也能夠通過壁部17而變化。如上所述，為了使測量光路12a的氛圍穩定化而減少測量精度的降低，氣體14a被供給到測量光路12a。因此，若在測量光路12a中氣體14a的流動局部地變化，則在該部分，折射率變化，測量精度可能降低。例如，當從吹出部14吹出的氣體14a碰撞到壁部17時，在壁部17的附近，氣體14a的流動可能發生變化。另外，壁部17附近的氣體14a隨著原版載置台11的移動而被壁部17推出或拉拽，因此有時成為紊亂的流動(紊流)。若在測量光路12a中產生這樣的氣體14a的流動的變化、紊流，則可能引起測量精度的降低。 因此，本實施方式的壁部17在Y軸方向上與反射構件13(支承部16)分離地配置。例如，壁部17可以在Y軸方向上配置於比原版M與反射構件13(支承部16)的中間位置靠原版側(板側)的位置。這樣，通過將壁部17與反射構件13 (支承部16)分離配置，能夠降低壁部17的附近的氣體14a的流動的變化、紊流對測量測光路12a造成的影響，能夠減少測量精度的降低。並且，通過壁部17而使氣體14a的流動發生變化的方向成為遠離測量光路12a的方向，因此通過這樣的變化後的氣體14a的流動，能夠增加使越過壁部17而來的原版M的周圍氣體遠離測量光路12a的效果。 接著，對通過模擬來確認在原版M與反射構件13(支承部16)之間設置壁部17的效果的結果進行說明。在模擬中，將原版M的尺寸設為152mm×152mm。另外，將壁部17設為180mm寬度(X軸方向的長度)以及26mm高度，設置於距原版載置台11的上表面S的原版M的端部35mm的位置。在該情況下，在基板W的曝光中原版M的溫度上升1.4℃時，與未設置壁部17的情況相比，成為由原版M的溫度引起的測量光路12a的波動改善了45％的結果。 如上所述，在本實施方式的定位裝置10A中，在原版載置台11的上表面的原版M與反射構件13之間設置有壁部17。另外，壁部17構成為其上端比原版M的上表面高，與原版M和反射構件13(支承部16)分離地配置。根據該結構，能夠減少在曝光中在原版M產生的熱、對原版M供給的吹掃氣體等原版M的周圍氣體侵入到測量部12的測量光路12a的情形。因此，能夠降低由測量光路12a的氛圍波動引起的測量部12的測量誤差，高精度地對原版M進行定位。在此，在本實施方式的結構中，也可以調換測量部12和反射構件13的位置。即，在本實施方式中，在原版載置台11的上表面S設置了反射構件13，但也可以在原版載置台11的上表面S設置測量部12。 [第2實施方式] 對本發明的第2實施方式進行說明。本實施方式是基本上延續了第1實施方式的實施方式，但在還具有包圍測量部12的測量光路12a的一部分的罩構件18這一點上與第1實施方式不同。以下，對具有罩構件18的本實施方式的定位裝置10B進行說明。 圖5是表示本實施方式的定位裝置10B的結構的概略圖。圖5(a)表示定位裝置10B的側視圖，圖5(b)表示定位裝置10B的俯視圖。本實施方式的原版載置台11在其上表面S具有包圍(覆蓋)測量光路12a的一部分的罩構件18。為了進一步降低越過壁部17而來的原版M的周圍氣體對測量光路12a造成的影響，即，為了調整在原版載置台11上的氣體的流動而實現測量光路12a的氛圍的穩定化而能夠設置罩構件18。 本實施方式的罩構件18能夠以在罩構件18與壁部17之間形成間隙19的方式配置於原版載置台11的上表面S。通過這樣從壁部17隔開間隙19地配置罩構件18，能夠使從吹出部14吹出並通過了罩構件18的氣體14a從該間隙19排出，並沿著壁部17流動。即，能夠進一步增加使越過壁部17移動來的原版M的周圍氣體遠離測量光路12a的效果。 罩構件18與壁部17之間的間隙19越窄，越能夠增加從該間隙19排出的氣體14a的流速，增加使原版M的周圍氣體遠離測量光路12a的效果。另一方面，若使間隙19變窄，則從吹出部14吹出的氣體14a在罩構件18的內部停滯，有時引起測量光路12a的氛圍波動。因此，本實施方式的罩構件18在X軸方向側的側面具有用於排出通過內部的氣體的開口部18a。開口部18a可以形成在壁部17側，優選可以形成在Y軸方向上的反射構件13與壁部17之間。另外，優選開口部18a在Y軸方向上配置在盡可能遠離反射構件13的位置。這是為了即使原版M的周圍氣體越過壁部17而從開口部18a侵入到罩構件18的內部，也減少對測量光路12a造成影響的情況。 在此，罩構件18也可以與壁部17一體地構成。在該情況下，也能夠相對於該一體構成的構件形成與間隙19以及開口部18a對應的開口、切口等。另外，開口部18a也可以與罩構件18和壁部17之間的間隙19的狹窄無關地形成。並且，如圖5所示，本實施方式的罩構件18構成為包圍在X軸方向上分離配置的多個反射構件13(測量光路12a)，但不限於此，也可以構成為分別包圍多個反射構件13的每一個。 如上所述，本實施方式的定位裝置10B具有相對於壁部17隔開間隙19地設置於原版載置台11的上表面S的罩構件18。另外，罩構件18也可以具有形成於X軸方向側的側面的開口部18a。根據該結構，能夠使從吹出部14吹出並通過了罩構件18的氣體14a從該間隙19排出，並沿著壁部17流動，因此能夠進一步減少原版M的周圍氣體侵入到測量部12的測量光路12a的情形。 [第3實施方式] 對本發明的第3實施方式進行說明。在本實施方式中，對構成為向配置有原版M的空間(以下稱為原版M的配置空間)供給吹掃氣體的定位裝置10C的結構例進行說明。另外，本實施方式只要沒有特別提及，則基本上延續第1～第2實施方式。 圖6是表示本實施方式的定位裝置10C的結構的概略圖。圖6(a)表示定位裝置10C的側視圖，圖6(b)表示定位裝置10C的俯視圖。本實施方式的定位裝置10C例如在向原版M的配置空間供給吹掃氣體(作為一例為低濕度的氣體)的情況下是有用的。 本實施方式的定位裝置10C構成為使原版載置台11在第1面構件31與第2面構件32之間移動。第1面構件31例如是被照明光學系統IO支承並在XY方向上擴展的構件，第2面構件32例如是被投影光學系統PO支承並在XY方向上擴展的構件。第1面構件31和第2面構件32以相對於原版載置台11的間隙盡可能變窄的方式配置。由此，能夠減少供給到原版M的配置空間的吹掃氣體33從第1面構件31與原版載置台11的間隙、以及第2面構件32與原版載置台11的間隙脫出。 另外，原版載置台11具有反射構件13(支承部16)、壁部17、罩構件18以及間隙規定構件34。反射構件13(支承部16)及壁部17如在第1～第2實施方式中說明的那樣設置在原版載置台11的上表面S上。如在第2實施方式中說明的那樣，罩構件18以相對於壁部17形成間隙19的方式設置於原版載置台11的上表面S，在X軸方向側的側面具有開口部18a。並且，在本實施方式的情況下，罩構件18能夠以相對於第1面構件31形成窄間隙的方式構成為與壁部17相同的高度。間隙限定構件34是用於相對於第1面構件31形成窄間隙的構件，以原版M的配置空間為基準(中心)而配置在壁部17以及罩構件18的相反側(原版M的配置空間的-Y方向側)。間隙限定構件34能夠構成為與壁部17以及罩構件18相同的高度。 這樣，通過構成原版載置台11，能夠減少供給到原版M的配置空間的吹掃氣體33脫出的情形。另外，能夠減少吹掃氣體33經由壁部17與第1面構件31之間的間隙以及壁部17與罩構件18之間的間隙而侵入到測量光路12a的情形。在此，優選罩構件18的開口部18a的面積(總面積)大於壁部17與罩構件18的間隙的面積(總面積)。這是因為，在本實施方式的結構中，由於氣體14a難以從壁部17與罩構件18的間隙排出，因此在罩構件18的內部氣體14a停滯，容易引起測量光路12a的氛圍波動。另外，開口部18a可以在Y軸方向上形成在反射構件13與壁部17之間。在該情況下，開口部18a優選在Y軸方向上形成於盡可能遠離反射構件13的位置。這是為了在反射構件13附近的測量光路12a中抑制氣體14a的急劇的流速變化，降低測量光路12a的氛圍波動。 [第4實施方式] 對本發明的第5實施方式進行說明。在本實施方式中，對構成為原版載置台11包括粗動載置台11a和微動載置台11b的定位裝置10D的結構例進行說明。需要說明的是，本實施方式只要沒有特別提及，則基本延續第1實施方式。另外，本實施方式也可以應用包括在第2實施方式中說明的罩構件18的結構和/或包括在第3實施方式中說明的第1面構件31和第2面構件32的結構。 圖7是表示本實施方式的定位裝置10D的結構的概略圖。圖7(a)表示定位裝置10D的側視圖，圖7(b)表示定位裝置10D的俯視圖。本實施方式的定位裝置10D中的原版載置台11能夠包括粗動載置台11a和微動載置台11b。 粗動載置台11a具有用於相對於基座41至少在Y軸方向上相對移動的驅動機構42(致動器)。並且，Y軸方向上的粗動載置台11a的位置由第2測量部43測量。第2測量部43例如由雷射干涉儀構成，朝向設置於粗動載置台11a的反射構件44射出光，基於來自該反射構件44的反射光與參照光的干涉，能夠測量Y軸方向上的粗動載置台11a的位置。在圖7中，示出了第2測量部43的測量光路43a。在此，在本實施方式中，反射構件44設置於粗動載置台11a的側面，但也可以設置於粗動載置台11a的上表面。 另外，微動載置台11b具有用於保持原版M並且相對於粗動載置台11a至少在Y軸方向上相對移動的驅動機構45 (致動器)。在本實施方式的情況下，反射構件13(支承部16)以及壁部17設置於微動載置台11b的上表面S。並且，壁部17以在反射構件13(支承部16)與原版M之間與反射構件13及原版M分離的方式被微動載置台11b支承。 在此，如圖8所示，壁部17也可以不由微動載置台11b支承，而由粗動載置台11a支承。圖8是表示壁部17被粗動載置台11a支承的結構的定位裝置10E的結構的概略圖。圖8(a)表示定位裝置10E的側視圖，圖8(b)表示定位裝置10E的俯視圖。在圖8所示的定位裝置10E中，壁部17經由支承構件46被粗動載置台11a支承。具體而言，壁部17以在反射構件13(支承部16)與原版M之間與反射構件13及原版M分離的方式，經由支承構件46由粗動載置台11b支承。 根據本實施方式的定位裝置10D～10E的結構，也能夠減少原版M的周圍氣體侵入到測量部12的測量光路12a的情形。因此，能夠降低由於測量光路12a中的氛圍波動而引起的測量部12的測量誤差，從而能夠高精度地對原版M進行定位。 [物品的製造方法的實施方式] 本發明的實施方式的物品的製造方法例如適合於製造半導體器件等微器件、具有微細構造的元件等物品。本實施方式的物品的製造方法包括：使用上述曝光裝置在塗敷於基板的感光劑上形成潛像圖案的工序(對基板進行曝光的工序)；以及對在該工序中形成有潛像圖案的基板進行顯影(加工)的工序。而且，該製造方法包括其它的公知的工序(氧化、成膜、蒸鍍、摻雜、平坦化、蝕刻、抗蝕劑剝離、切割、接合、封裝等)。本實施方式的物品的製造方法與以往的方法相比，在物品的性能、品質、生產率、生產成本中的至少1個方面是有利的。 本發明並不限定於上述實施方式，能夠在不脫離發明的精神和範圍的情況下進行各種變更和變形。因此，為了公開發明的範圍而添加權利要求。Hereinafter, embodiments will be described in detail with reference to the drawings. In addition, the following embodiments do not limit the invention according to the claims. Although multiple features are described in the embodiment, these multiple features are not necessarily all essential features of the invention, and multiple features may be combined arbitrarily. In addition, in the drawings, the same or similar structures are denoted by the same reference numerals, and repeated descriptions are omitted. [First Embodiment] [Structure of Exposure Device] The first embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing the overall structure of an exposure apparatus 100 according to this embodiment. The exposure apparatus 100 of this embodiment is a step-and-scan exposure apparatus that transfers the pattern of the original plate M to the substrate by exposing the substrate W while scanning the original plate M and the substrate W. Such an exposure device 100 is also called a scanning exposure device or a scanner. In the present embodiment, the original plate M is, for example, a mask (reticle) made of quartz, and a circuit pattern to be transferred to each of the plurality of projection regions on the substrate W is formed. In addition, the substrate W is a wafer coated with a photoresist, and, for example, a single crystal silicon substrate or the like can be used. The exposure apparatus 100 can include an illumination optical system 10, an original plate mounting table 11 capable of holding and moving the original plate M, a projection optical system PO, a substrate mounting table 21 capable of holding and moving a substrate W, and a control unit CNT. The control unit CNT is composed of, for example, a computer having a CPU and a memory, and is electrically connected to each unit in the device to collectively control the operation of the entire device. Here, in the following description, the axis parallel to the optical axis of the light emitted from the illumination optical system 10 and incident on the original plate M is referred to as the Z-axis direction, and will be orthogonal to each other in a plane perpendicular to the optical axis. The two axial directions of is referred to as the X-axis direction and the Y-axis direction. The illumination optical system IO shapes the light emitted from the light source LS such as mercury lamps, ArF excimer lasers, KrF excimer lasers, etc. into, for example, strip-shaped or arc-shaped slit light, and uses the slit light to perform a part of the original plate M. illumination. The light that has passed through a part of the original plate M is incident on the projection optical system PO as pattern light reflecting the pattern of the part of the original plate M. The projection optical system PO has a predetermined projection magnification, and projects the pattern of the original plate M onto the substrate (specifically, the resist on the substrate) by pattern light. The original plate M and the substrate W are held by the original plate mounting table 11 and the substrate mounting table 21, respectively, and are respectively arranged at positions that are optically conjugate via the projection optical system PO (the object surface and the image surface of the projection optical system PO). The control unit CNT performs relative scanning at a speed ratio corresponding to the projection magnification of the projection optical system PO while synchronizing the original plate mounting table 11 and the substrate mounting table 21 with each other (in this embodiment, the scanning direction of the original plate M and the substrate W is set It is the Y-axis direction (first direction)). Thus, the pattern of the original plate M can be transferred to the substrate. [Structure of Positioning Device] Next, the positioning device for positioning the board will be described. In this embodiment, the positioning device 10 that performs positioning of the original plate M as a board will be described, but when positioning the substrate W as a board, a positioning device of the same structure can be applied. FIG. 2 is a schematic diagram showing the structure of the positioning device 10A of the present embodiment. Fig. 2(a) shows a side view of the positioning device 10A, and Fig. 2(b) shows a plan view of the positioning device 10A. The positioning device 10A can include, for example, an original plate mounting table 11 capable of holding the original plate M and moving at least in the Y-axis direction (first direction), and a measuring unit 12 that measures the position of the original plate mounting table 11 in the Y-axis direction. The measuring unit 12 is composed of, for example, a laser interferometer, and emits light to the reflecting member 13 (reflector) provided on the original plate stage 11. Based on the interference of the reflected light from the reflecting member 13 and the reference light, the measurement in the Y-axis direction is possible. The position of the original plate mounting table 11. In the example shown in FIG. 2, a plurality (two) of measurement units 12 are separately arranged in the X-axis direction. In this way, by using a plurality of measurement units 12, it is also possible to measure the rotation of the original plate mounting table 11 in the θ direction (the rotation direction around the Z axis). In addition, the reflective member 13 can be provided on the upper surface S of the original plate mounting table 11. In the case of this embodiment, as shown in FIG. 2, the reflection member 13 is supported by a support portion 16 protruding from the upper surface S of the original plate mounting table 11 in the +Z direction. Here, the upper surface S of the original plate mounting table 11 is, for example, the surface of the original plate mounting table 11 including the holding surface that holds the original plate M. In the positioning device 10A, if fluctuations (ambient fluctuations) of the temperature and humidity of the gas occur in the optical path (measurement optical path) 12a of the light emitted from the measurement unit 12, the refractive index of the measurement optical path 12a may change, which may cause Decrease in measurement accuracy (measurement error). Therefore, in the positioning device 10A of the present embodiment, it is possible to provide the blowing unit 14 that blows out the gas 14a for stabilizing the atmosphere of the measurement optical path 12a. The blowing section 14 can blow the gas toward the original plate mounting table 11 so as to form a flow of gas along the Y-axis direction in the measurement optical path 12a of the measuring section 12, for example. In addition to stabilizing the atmosphere of the measurement optical path 12a, the gas 14a blown out from the blowing part 14 is sometimes used to prevent blur of the original plate M or to cool the original plate mounting table 11. As the gas 14a blown out from the blowing part 14, for example, a clean gas whose temperature and humidity are maintained (adjusted) within a predetermined range, such as clean air, clean dry air, and nitrogen, can be used. In addition, since the original plate M is illuminated during the exposure of the substrate W and the temperature rises, when the heat generated on the original plate M diffuses to the surroundings along with the movement of the original plate mounting table 11 and intrudes into the measuring optical path 12a, the measuring section 12 responds to The measurement accuracy of the position of the original plate mounting table 11 may be reduced. In addition, in order to prevent blurring of the original plate M, the arrangement space of the original plate M is sometimes filled with a gas (purge gas) with a lower humidity than the surroundings. Even in this case, if a low-humidity gas enters the measurement optical path along with the movement of the original plate mounting table 11, the measurement accuracy of the position of the original plate mounting table 11 by the measuring unit 12 may be reduced. In addition, hereinafter, the gas with heat from the original plate M and the gas (purge gas) supplied to the arrangement space of the original plate M may be collectively referred to as the “ambient gas of the original plate M”. Therefore, in the positioning device 10A of the present embodiment, a wall portion 17 is provided between the reflection member 13 (support portion 16) on the upper surface S of the original plate mounting table 11 and the original plate M. By providing the wall portion 17 in this way, it is possible to reduce the situation in which the surrounding air of the original plate M moves and intrudes into the measurement optical path 12 a accompanying the movement of the original plate mounting table 11. Specifically, as shown in FIG. 3, when the original plate stage 11 moves in accordance with the arrow mark V, the surrounding air of the original plate M starts to move in the direction (-X direction) toward the measurement optical path 12a. However, the surrounding gas of the original plate M that started to move collides with the wall portion 17 as indicated by the arrow mark A, and its moving direction (flow direction) is changed to a direction away from the measuring optical path 12a. Therefore, it is possible to reduce (prevent) the intrusion of surrounding air of the original plate M into the measurement optical path 12a. The wall portion 17 is configured such that its height (in the Z-axis direction) is higher than the upper surface of the original plate M. The higher the height of the wall portion 17 is, the more the movement direction of the surrounding gas of the original plate M can be guided (converted) to a direction away from the measurement optical path 12a, and the distance between the flow of the surrounding gas and the measurement optical path 12a can be increased. In this way, if the distance between the flow of the surrounding gas of the original plate M and the measurement optical path 12a is increased, it is possible to reduce the intrusion of the surrounding gas of the original plate M into the measurement optical path 12a. Furthermore, in this case, the gas 14a blown from the blowing part 14 can further separate the flow of the surrounding gas of the original plate M from the measuring optical path 12a, so that the intrusion of the surrounding gas of the original plate M into the measuring optical path 12a can be further reduced. In addition, the width (length in the X-axis direction) of the wall portion 17 may be greater than or equal to the width (length in the X-axis direction) of the original plate M. The wider the width of the wall portion 17 is, the more the surrounding gas of the moving original plate M can be guided away from the measuring optical path 12a, and the distance between the flow of the surrounding gas and the measuring optical path 12a can be increased. In addition, the X-axis direction can be defined as a direction (second direction) perpendicular to the scanning direction (X-axis direction, first direction) in a plane parallel to the upper surface S of the original plate mounting table 11. Here, as described above, the higher the height of the wall portion 17, the better, and the wider the width of the wall portion 17, the better, but the height and width of the wall portion 17 can be based on the size of the original plate mounting table 11 or the original plate mounting table 11, for example. The size of the moving space is determined. When viewed from the Z-axis direction (when viewed in plan), the wall portion 17 is not limited to a rectangular shape, and may have another shape that can increase the effect of changing the moving direction of the surrounding gas of the original plate M. 4(a) to (d) show examples of the shape of the wall portion 17. The wall portion 17 shown in FIG. 4(a) has a shape in which an end portion on the X-axis direction side is bent in an "L" shape in a direction away from the original plate M (+Y direction). The wall portion 17 shown in FIG. 4(b) has an end portion on the X-axis direction side that is bent into an "L" shape in the direction (-Y direction) toward the original plate M. The wall portion 17 shown in FIG. 4(c) has a shape in which an end portion on the X-axis direction side is bent in a "く" shape in a direction away from the original plate M (+Y direction). The wall portion 17 shown in FIG. 4(d) has a shape in which the side surface on the X-axis direction side is inclined (that is, the shape in a plan view has a trapezoidal shape). In addition, the shape of the wall portion 17 is not limited to the shape shown in FIG. 4 such as a curvature or a partial difference in thickness. In addition, when the air resistance at the wall 17 affects the movement of the original plate mounting table 11, the wall 17 may be formed in an inclined shape so that the air resistance is smaller than a desired value. On the other hand, the flow of the gas 14 a blown out from the blowing part 14 can also be changed by the wall part 17. As described above, in order to stabilize the atmosphere of the measurement optical path 12a and reduce the decrease in measurement accuracy, the gas 14a is supplied to the measurement optical path 12a. Therefore, if the flow of the gas 14a changes locally in the measurement optical path 12a, the refractive index changes in this portion, and the measurement accuracy may be reduced. For example, when the gas 14a blown out from the blowing portion 14 collides with the wall portion 17, the flow of the gas 14a may change in the vicinity of the wall portion 17. In addition, the gas 14a in the vicinity of the wall portion 17 is pushed out or pulled by the wall portion 17 along with the movement of the original plate mounting table 11, and therefore may become a turbulent flow (turbulent flow). If such a change or turbulence in the flow of the gas 14a occurs in the measurement optical path 12a, it may cause a decrease in measurement accuracy. Therefore, the wall part 17 of this embodiment is arrange|positioned separately from the reflection member 13 (support part 16) in the Y-axis direction. For example, the wall portion 17 may be arranged at a position closer to the original plate side (plate side) than an intermediate position between the original plate M and the reflective member 13 (support portion 16) in the Y-axis direction. In this way, by separating the wall portion 17 from the reflecting member 13 (support portion 16), it is possible to reduce the influence of changes in the flow of the gas 14a in the vicinity of the wall portion 17 and the influence of turbulence on the measurement optical path 12a, thereby reducing the measurement accuracy. reduce. In addition, the direction in which the flow of the gas 14a is changed by the wall portion 17 is a direction away from the measuring optical path 12a. Therefore, the flow of the gas 14a after such a change can increase the circumference of the original plate M that passes over the wall portion 17 The effect of the gas being far away from the measuring optical path 12a. Next, the result of confirming the effect of providing the wall part 17 between the original plate M and the reflection member 13 (support part 16) by simulation is demonstrated. In the simulation, the size of the original plate M is set to 152mm×152mm. In addition, the wall portion 17 has a width of 180 mm (length in the X-axis direction) and a height of 26 mm, and is provided at a position 35 mm from the end of the original plate M on the upper surface S of the original plate mounting table 11. In this case, when the temperature of the original plate M rises by 1.4°C during the exposure of the substrate W, the fluctuation of the measurement optical path 12a caused by the temperature of the original plate M is improved by 45% compared with the case where the wall portion 17 is not provided. . As described above, in the positioning device 10A of the present embodiment, the wall portion 17 is provided between the original plate M on the upper surface of the original plate mounting table 11 and the reflective member 13. In addition, the wall portion 17 is configured such that its upper end is higher than the upper surface of the original plate M, and is arranged separately from the original plate M and the reflection member 13 (support portion 16). According to this configuration, it is possible to reduce the intrusion of surrounding gas of the original plate M such as heat generated in the original plate M during exposure and purge gas supplied to the original plate M into the measurement optical path 12 a of the measurement unit 12. Therefore, it is possible to reduce the measurement error of the measurement unit 12 caused by the fluctuation of the atmosphere of the measurement optical path 12a, and it is possible to position the original plate M with high accuracy. Here, in the structure of the present embodiment, the positions of the measuring part 12 and the reflecting member 13 may be exchanged. That is, in the present embodiment, the reflecting member 13 is provided on the upper surface S of the original plate mounting table 11, but the measuring section 12 may be provided on the upper surface S of the original plate mounting table 11. [Second Embodiment] The second embodiment of the present invention will be described. The present embodiment basically continues the first embodiment, but is different from the first embodiment in that it further includes a cover member 18 that surrounds a part of the measurement optical path 12 a of the measurement unit 12. Hereinafter, the positioning device 10B of the present embodiment having the cover member 18 will be described. FIG. 5 is a schematic diagram showing the configuration of the positioning device 10B of the present embodiment. Fig. 5(a) shows a side view of the positioning device 10B, and Fig. 5(b) shows a plan view of the positioning device 10B. The original plate mounting table 11 of this embodiment has, on its upper surface S, a cover member 18 that surrounds (covers) a part of the measurement optical path 12a. It can be installed in order to further reduce the influence of the surrounding air of the original plate M coming across the wall 17 on the measurement optical path 12a, that is, to adjust the flow of gas on the original plate mounting table 11 to stabilize the atmosphere of the measurement optical path 12a. Shield member 18. The cover member 18 of this embodiment can be arranged on the upper surface S of the original plate mounting table 11 so that a gap 19 is formed between the cover member 18 and the wall portion 17. By arranging the cover member 18 with the gap 19 separated from the wall portion 17 in this way, the gas 14 a blown out from the blowing portion 14 and passed through the cover member 18 can be discharged from the gap 19 and flow along the wall portion 17. That is, it is possible to further increase the effect of keeping the surrounding air of the original plate M moving over the wall portion 17 away from the measurement optical path 12a. The narrower the gap 19 between the cover member 18 and the wall portion 17 is, the more the flow rate of the gas 14a discharged from the gap 19 can be increased, and the effect of keeping the surrounding gas of the original plate M away from the measurement optical path 12a can be increased. On the other hand, if the gap 19 is narrowed, the gas 14a blown out from the blowing part 14 stagnates inside the cover member 18, and the atmosphere of the measuring optical path 12a may fluctuate. Therefore, the cover member 18 of the present embodiment has an opening 18a for discharging the gas passing through the inside on the side surface on the X-axis direction side. The opening portion 18a may be formed on the wall portion 17 side, and preferably may be formed between the reflection member 13 and the wall portion 17 in the Y-axis direction. In addition, it is preferable that the opening 18a is arranged at a position as far away from the reflection member 13 as possible in the Y-axis direction. This is to reduce the influence on the measurement optical path 12a even if the ambient air of the original plate M passes over the wall portion 17 and enters the inside of the cover member 18 from the opening portion 18a. Here, the cover member 18 may be formed integrally with the wall portion 17. In this case, it is also possible to form openings, cutouts, etc. corresponding to the gap 19 and the opening portion 18a with respect to the integrated member. In addition, the opening portion 18 a may be formed regardless of the narrowness of the gap 19 between the cover member 18 and the wall portion 17. In addition, as shown in FIG. 5, the cover member 18 of the present embodiment is configured to surround a plurality of reflecting members 13 (measurement optical paths 12a) separately arranged in the X-axis direction, but it is not limited to this, and may be configured to surround a plurality of Each of the reflective members 13. As described above, the positioning device 10B of the present embodiment has the cover member 18 provided on the upper surface S of the original plate mounting table 11 with a gap 19 from the wall portion 17. In addition, the cover member 18 may have an opening 18a formed on the side surface on the X-axis direction side. According to this structure, the gas 14a that has been blown out from the blowing portion 14 and passed through the cover member 18 can be discharged from the gap 19 and flow along the wall portion 17. Therefore, it is possible to further reduce the intrusion of the surrounding gas of the original plate M into the measurement portion 12 The situation of light path 12a. [Third Embodiment] The third embodiment of the present invention will be described. In the present embodiment, a configuration example of the positioning device 10C configured to supply the purge gas to the space in which the original plate M is arranged (hereinafter referred to as the arrangement space of the original plate M) will be described. In addition, this embodiment basically continues the first to second embodiments as long as it is not specifically mentioned. FIG. 6 is a schematic diagram showing the structure of the positioning device 10C of the present embodiment. Fig. 6(a) shows a side view of the positioning device 10C, and Fig. 6(b) shows a plan view of the positioning device 10C. The positioning device 10C of the present embodiment is useful when, for example, a purge gas (a low-humidity gas as an example) is supplied to the arrangement space of the original plate M. The positioning device 10C of this embodiment is configured to move the original plate mounting table 11 between the first surface member 31 and the second surface member 32. The first surface member 31 is, for example, a member supported by the illumination optical system 10 and expanded in the XY direction, and the second surface member 32 is, for example, a member supported by the projection optical system PO and expanded in the XY direction. The first surface member 31 and the second surface member 32 are arranged such that the gap with respect to the original plate mounting table 11 is as narrow as possible. Thereby, it is possible to reduce the purge gas 33 supplied to the arrangement space of the original plate M from coming out of the gap between the first surface member 31 and the original plate mounting table 11 and the gap between the second surface member 32 and the original plate mounting table 11. In addition, the original plate mounting table 11 has a reflection member 13 (support portion 16), a wall portion 17, a cover member 18, and a gap defining member 34. The reflection member 13 (support portion 16) and the wall portion 17 are provided on the upper surface S of the original plate mounting table 11 as described in the first to second embodiments. As described in the second embodiment, the cover member 18 is provided on the upper surface S of the original plate mounting table 11 so as to form a gap 19 with the wall portion 17, and has an opening 18 a on the side surface on the X-axis direction side. In addition, in the case of the present embodiment, the cover member 18 can be configured to have the same height as the wall portion 17 so as to form a narrow gap with the first surface member 31. The gap limiting member 34 is a member for forming a narrow gap with respect to the first surface member 31, and is arranged on the opposite side of the wall 17 and the cover member 18 (the arrangement space of the original plate M) with the arrangement space of the original plate M as a reference (center).的-Y direction side). The gap limiting member 34 can be configured to have the same height as the wall portion 17 and the cover member 18. In this way, by configuring the original plate mounting table 11, it is possible to reduce the escaping of the purge gas 33 supplied to the arrangement space of the original plate M. In addition, it is possible to reduce the intrusion of the purge gas 33 into the measurement optical path 12a via the gap between the wall portion 17 and the first surface member 31 and the gap between the wall portion 17 and the cover member 18. Here, it is preferable that the area (total area) of the opening portion 18a of the cover member 18 is larger than the area (total area) of the gap between the wall portion 17 and the cover member 18. This is because, in the structure of the present embodiment, since the gas 14a is difficult to be discharged from the gap between the wall portion 17 and the cover member 18, the gas 14a stagnates inside the cover member 18, and the atmosphere of the measurement optical path 12a is likely to fluctuate. In addition, the opening portion 18a may be formed between the reflection member 13 and the wall portion 17 in the Y-axis direction. In this case, the opening 18a is preferably formed as far away from the reflection member 13 as possible in the Y-axis direction. This is for suppressing the rapid flow velocity change of the gas 14a in the measuring optical path 12a near the reflection member 13, and reducing the atmospheric fluctuation of the measuring optical path 12a. [Fourth Embodiment] The fifth embodiment of the present invention will be described. In this embodiment, a configuration example of the positioning device 10D configured such that the original plate stage 11 includes the coarse motion stage 11a and the fine motion stage 11b will be described. It should be noted that this embodiment basically continues the first embodiment as long as it is not specifically mentioned. In addition, the present embodiment may also apply the structure including the cover member 18 described in the second embodiment and/or the structure including the first surface member 31 and the second surface member 32 described in the third embodiment. FIG. 7 is a schematic diagram showing the configuration of the positioning device 10D of this embodiment. FIG. 7(a) shows a side view of the positioning device 10D, and FIG. 7(b) shows a plan view of the positioning device 10D. The original plate mounting table 11 in the positioning device 10D of this embodiment can include a coarse motion mounting table 11a and a fine motion mounting table 11b. The coarse motion mounting table 11a has a drive mechanism 42 (actuator) for relative movement with respect to the base 41 at least in the Y-axis direction. In addition, the position of the coarse movement stage 11 a in the Y-axis direction is measured by the second measuring unit 43. The second measurement unit 43 is composed of, for example, a laser interferometer, and emits light toward the reflective member 44 provided on the coarse motion stage 11a. Based on the interference of the reflected light from the reflective member 44 and the reference light, it can measure the Y axis direction. Coarse the position of the mounting table 11a. In FIG. 7, the measurement optical path 43a of the 2nd measurement part 43 is shown. Here, in this embodiment, the reflection member 44 is provided on the side surface of the coarse motion mounting table 11a, but it may be provided on the upper surface of the coarse motion mounting table 11a. In addition, the fine movement stage 11b has a drive mechanism 45 (actuator) for holding the original plate M and relatively moves at least in the Y-axis direction with respect to the coarse movement stage 11a. In the case of the present embodiment, the reflection member 13 (supporting portion 16) and the wall portion 17 are provided on the upper surface S of the fine movement stage 11b. In addition, the wall portion 17 is supported by the fine movement stage 11b so as to be separated from the reflection member 13 and the original plate M between the reflection member 13 (support portion 16) and the original plate M. Here, as shown in FIG. 8, the wall portion 17 may not be supported by the fine movement mounting table 11 b but may be supported by the coarse movement mounting table 11 a. FIG. 8 is a schematic diagram showing the structure of the positioning device 10E having a structure in which the wall portion 17 is supported by the coarse motion mounting table 11a. Fig. 8(a) shows a side view of the positioning device 10E, and Fig. 8(b) shows a plan view of the positioning device 10E. In the positioning device 10E shown in FIG. 8, the wall portion 17 is supported by the coarse motion mounting table 11 a via the support member 46. Specifically, the wall portion 17 is supported by the coarse motion stage 11 b via the support member 46 so as to be separated from the reflection member 13 and the original plate M between the reflection member 13 (support portion 16) and the original plate M. According to the configuration of the positioning devices 10D to 10E of the present embodiment, it is also possible to reduce the intrusion of surrounding air of the original plate M into the measurement optical path 12 a of the measurement unit 12. Therefore, it is possible to reduce the measurement error of the measurement section 12 caused by the fluctuation of the atmosphere in the measurement optical path 12a, so that the original plate M can be positioned with high accuracy. [Implementation of article manufacturing method] The method of manufacturing an article according to the embodiment of the present invention is suitable for manufacturing articles such as micro devices such as semiconductor devices and elements having a fine structure, for example. The method of manufacturing an article of this embodiment includes: a step of forming a latent image pattern on a photosensitive agent coated on a substrate using the above-mentioned exposure device (a step of exposing the substrate); and a step of forming a latent image pattern in this step The process of developing (processing) the substrate. Furthermore, this manufacturing method includes other well-known steps (oxidation, film formation, vapor deposition, doping, planarization, etching, resist stripping, dicing, bonding, packaging, etc.). Compared with the conventional method, the manufacturing method of the article of this embodiment is advantageous in at least one aspect of the performance, quality, productivity, and production cost of the article. The present invention is not limited to the above-mentioned embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, a claim is added in order to disclose the scope of the invention.

10:定位裝置 11:原版載置台 12:測量部 13:反射構件 16:支承部 17:壁部 18:罩構件10: Positioning device 11: Original stage 12: Measurement department 13: reflective member 16: support part 17: Wall 18: cover member

[圖1]是表示曝光裝置的結構的概略圖。 [圖2]是表示第1實施方式的定位裝置的結構的概略圖。 [圖3]是用於說明第1實施方式的定位裝置的效果的圖。 [圖4]是表示壁部的變形例的圖。 [圖5]是表示第2實施方式的定位裝置的結構的概略圖。 [圖6]是表示第3實施方式的定位裝置的結構的概略圖。 [圖7]是表示第4實施方式的定位裝置的結構的概略圖。 [圖8]是表示第4實施方式的定位裝置的變形例的概略圖。[Fig. 1] is a schematic diagram showing the structure of an exposure apparatus. [Fig. 2] is a schematic diagram showing the configuration of the positioning device of the first embodiment. Fig. 3 is a diagram for explaining the effect of the positioning device of the first embodiment. [Fig. 4] is a diagram showing a modification example of the wall portion. Fig. 5 is a schematic diagram showing the structure of a positioning device according to a second embodiment. Fig. 6 is a schematic diagram showing the structure of a positioning device according to a third embodiment. [Fig. 7] is a schematic diagram showing the configuration of a positioning device according to a fourth embodiment. [Fig. 8] is a schematic diagram showing a modification of the positioning device of the fourth embodiment.

10A:定位裝置 10A: Positioning device

11:原版載置台 11: Original stage

12:測量部 12: Measurement department

12a:測量光路 12a: Measuring optical path

13:反射構件 13: reflective member

14:吹出部 14: Blow out part

14a:氣體 14a: Gas

16:支承部 16: support part

17:壁部 17: Wall

S:上表面 S: upper surface

M:原版 M: Original

Claims (13)

一種定位裝置，對板進行定位，其特徵在於， 該定位裝置包括： 載置台，能夠保持前述板並在第1方向上移動；以及 測量部，在前述第1方向上射出光，並基於由設置於前述載置台的上表面之上的反射構件反射的光，測量前述載置台在前述第1方向上的位置， 前述載置台在前述第1方向上的前述板與前述反射構件之間具有壁部，該壁部用於減少因前述載置台向前述第1方向的移動而前述板的周圍的氣體侵入到前述測量部的光路的情形， 前述壁部構成為其上端比前述板的上表面高，且與前述板以及前述反射構件分離地配置。A positioning device for positioning a board, characterized in that: The positioning device includes: A mounting table capable of holding the aforementioned board and moving in the first direction; and The measuring unit emits light in the first direction, and measures the position of the mounting table in the first direction based on the light reflected by the reflecting member provided on the upper surface of the mounting table, The mounting table has a wall between the plate and the reflecting member in the first direction, and the wall is used to reduce the intrusion of gas around the plate into the measurement due to the movement of the mounting table in the first direction The light path of the Ministry, The wall portion is configured such that its upper end is higher than the upper surface of the plate and is arranged separately from the plate and the reflecting member. 如請求項1的定位裝置，其中， 前述壁部在前述第1方向上配置於比前述板與前述反射構件的中間位置靠前述板側的位置。Such as the positioning device of claim 1, wherein The said wall part is arrange|positioned at the said board side rather than the intermediate position of the said board and the said reflection member in the said 1st direction. 如請求項1的定位裝置，其中， 前述反射構件由從前述載置台的上表面突出的支承部支承， 前述壁部與前述支承部分離地配置。Such as the positioning device of claim 1, wherein The reflecting member is supported by a support portion protruding from the upper surface of the mounting table, The wall portion and the support portion are separately arranged. 如請求項1的定位裝置，其中， 前述載置台的上表面是包括保持前述板的保持面的面。Such as the positioning device of claim 1, wherein The upper surface of the mounting table is a surface including a holding surface that holds the plate. 如請求項1的定位裝置，其中， 在與前述載置台的上表面平行的面內垂直於前述第1方向的第2方向上，前述壁部的長度為前述板的長度以上。Such as the positioning device of claim 1, wherein In a second direction perpendicular to the first direction in a plane parallel to the upper surface of the mounting table, the length of the wall portion is greater than or equal to the length of the plate. 如請求項1的定位裝置，其中， 前述載置台具有包圍前述測量部的光路的一部分的罩構件， 在前述罩構件與前述壁部之間形成有用於從前述罩構件的內部排出氣體的間隙。Such as the positioning device of claim 1, wherein The mounting table has a cover member that surrounds a part of the optical path of the measurement section, A gap for discharging gas from the inside of the cover member is formed between the cover member and the wall portion. 如請求項6的定位裝置，其中， 前述罩構件在與前述第1方向垂直的第2方向側的側面具有用於從該罩構件的內部排出氣體的開口部。Such as the positioning device of claim 6, wherein The cover member has an opening for discharging gas from the inside of the cover member on the side surface on the second direction side perpendicular to the first direction. 如請求項7的定位裝置，其中， 前述罩構件在前述第1方向上的前述反射構件與前述壁部之間具有前述開口部。Such as the positioning device of claim 7, in which, The cover member has the opening between the reflection member and the wall in the first direction. 如請求項1的定位裝置，其中， 前述載置台包括：粗動載置台；以及微動載置台，保持前述板並且相對於前述粗動載置台進行相對移動， 前述壁部由前述微動載置台支承。Such as the positioning device of claim 1, wherein The aforementioned mounting table includes: a coarse motion mounting table; and a fine motion mounting table, which holds the plate and moves relative to the coarse motion mounting table, The wall portion is supported by the fine movement mounting table. 如請求項1的定位裝置，其中， 前述載置台包括：粗動載置台；以及微動載置台，保持前述板並且相對於前述粗動載置台進行相對移動， 前述壁部由前述粗動載置台支承。Such as the positioning device of claim 1, wherein The aforementioned mounting table includes: a coarse motion mounting table; and a fine motion mounting table, which holds the plate and moves relative to the coarse motion mounting table, The wall portion is supported by the coarse motion mounting table. 如請求項1的定位裝置，其中， 前述定位裝置還包括吹出部，該吹出部朝向前述載置台吹出氣體，以在前述測量部的光路上形成沿著前述第1方向的氣體的流動。Such as the positioning device of claim 1, wherein The positioning device further includes a blowing portion that blows gas toward the mounting table to form a flow of the gas along the first direction on the optical path of the measuring portion. 一種曝光裝置，一邊掃描原版和基板一邊對前述基板進行曝光，其特徵在於， 該曝光裝置包括如請求項1至11中任一項的定位裝置， 前述定位裝置對作為前述板的前述原版及前述基板的至少一方進行定位。An exposure device for exposing the aforementioned substrate while scanning the original plate and the substrate, and is characterized in that: The exposure device includes the positioning device according to any one of claims 1 to 11, The positioning device positions at least one of the original plate and the substrate as the plate. 一種物品的製造方法，其特徵在於，包括： 使用如請求項12的曝光裝置對基板進行曝光的工序；以及 對在前述工序中進行了曝光的前述基板進行顯影的工序， 從顯影後的前述基板製造物品。An article manufacturing method, characterized in that it comprises: The process of exposing the substrate using the exposure device as in claim 12; and The step of developing the aforementioned substrate exposed in the aforementioned step, An article is manufactured from the aforementioned substrate after development.
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