WO2020175194A1 - 基板処理装置、基板処理方法、及び記憶媒体 - Google Patents
基板処理装置、基板処理方法、及び記憶媒体 Download PDFInfo
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- WO2020175194A1 WO2020175194A1 PCT/JP2020/005872 JP2020005872W WO2020175194A1 WO 2020175194 A1 WO2020175194 A1 WO 2020175194A1 JP 2020005872 W JP2020005872 W JP 2020005872W WO 2020175194 A1 WO2020175194 A1 WO 2020175194A1
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- 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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1619—Apparatus for electroless plating
- C23C18/1628—Specific elements or parts of the apparatus
- C23C18/163—Supporting devices for articles to be coated
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1675—Process conditions
- C23C18/1678—Heating of the substrate
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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
- G03F7/16—Coating processes; Apparatus therefor
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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
- G03F7/16—Coating processes; Apparatus therefor
- G03F7/162—Coating on a rotating support, e.g. using a whirler or a spinner
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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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
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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
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/30—Imagewise removal using liquid means
- G03F7/3021—Imagewise removal using liquid means from a wafer supported on a rotating chuck
- G03F7/3028—Imagewise removal using liquid means from a wafer supported on a rotating chuck characterised by means for on-wafer monitoring of the processing
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- 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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- 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
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
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- 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
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67075—Apparatus for fluid treatment for etching for wet etching
- H01L21/6708—Apparatus for fluid treatment for etching for wet etching using mainly spraying means, e.g. nozzles
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- 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
- H01L21/6715—Apparatus for applying a liquid, a resin, an ink or the like
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- 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
- H01L21/677—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 for conveying, e.g. between different workstations
- H01L21/67739—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 for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
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- 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
- H01L21/683—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 for supporting or gripping
- H01L21/687—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
Definitions
- the present disclosure relates to a substrate processing apparatus, a substrate processing method, and a storage medium.
- Patent Document 1 discloses that a circular substrate is held horizontally and then a substrate holding portion for rotating the substrate about a vertical axis and a film on a peripheral portion of a substrate rotated by the substrate holding portion are removed. Therefore, a liquid processing apparatus including a liquid chemical nozzle for supplying a liquid chemical to the peripheral portion is disclosed. This liquid processing apparatus calculates the amount of deviation between the rotation center of the substrate holding part and the center of the substrate based on the imaging results obtained by imaging a plurality of imaging regions obtained by equally dividing the peripheral edge of the substrate in the circumferential direction. It is equipped with a determination unit for performing.
- Patent Document 1 Japanese Unexamined Patent Publication No. 20 1 3 _ 1 6 8 4 29
- the present disclosure provides a substrate processing apparatus and a substrate processing method that can effectively use a substrate used for adjusting a removal width in a peripheral portion of a coating film.
- a substrate processing apparatus includes a film forming processing unit that forms a film on a surface of a substrate and removes at least a part of the film, and surface information indicating a surface state of the substrate.
- a surface inspection unit for acquiring and a control unit for controlling the film formation processing unit and the surface inspection unit are provided. The control unit controls the formation of the coating film on the surface of the substrate by the film formation processing unit, the removal of the peripheral portion of the coating film by the film formation processing unit, and the state of the surface of the substrate including the coating film whose peripheral portion has been removed.
- the surface inspection unit acquires the surface information shown, and adjusts the removal width of the peripheral portion based on the surface information, and peeling the coating film from which the peripheral portion has been removed by the film formation processing unit. ⁇ 02020/175194 2 (:171?2020/005872
- Node processing forming a coating film on the surface of the substrate by the film forming processing unit, removing the peripheral edge portion by the film forming processing unit with the removal width adjusted in the adjustment processing, and , Run.
- a substrate processing apparatus and a substrate processing method capable of effectively utilizing a substrate used for adjusting a removal width in a peripheral portion of a coating.
- FIG. 1 is a schematic view illustrating a schematic configuration of a substrate processing system.
- FIG. 2 is a schematic view illustrating the internal configuration of the coating and developing apparatus as viewed from the side.
- FIG. 3 is a schematic view illustrating the internal configuration of the coating and developing apparatus as viewed from above.
- FIG. 4 is a schematic view illustrating the configuration of a coating unit.
- FIG. 5 is a schematic view illustrating the configuration of an inspection unit.
- FIG. 6 is a block diagram illustrating a functional configuration of the control device.
- FIG. 7 is a block diagram illustrating a hardware configuration of a control device.
- FIG. 8 is a flow chart showing an example of the adjustment processing procedure.
- FIG. 9 is a flow chart showing an example of a condition setting processing procedure.
- FIG. 10 is a flow chart showing an example of a procedure for correcting operating conditions.
- Fig. 11 Fig. 11 (3) to Fig. 11 ( ⁇ ) are diagrams for explaining the condition of the substrate surface in the adjustment processing procedure.
- Fig. 12 Fig. 12 ( 3 ) to Fig. 12 ( ⁇ ) are diagrams for explaining the condition of the substrate surface in the adjustment processing procedure.
- FIG. 13 is a diagram for explaining the removal width calculated in the adjustment processing procedure.
- the X axis, the vertical axis, and the axis that are orthogonal to each other are specified, and the positive axis direction is the vertical upward direction.
- the substrate processing system 1 is a system that forms a photosensitive film on a substrate, exposes the photosensitive film, and develops the photosensitive film.
- the substrate to be processed is, for example, a semiconductor wafer.
- the wafer is formed in a circular shape.
- Edge of Waha A notch, which is a notch for indicating the orientation of the wafer, may be formed in the substrate.
- the photosensitive film is, for example, a resist film.
- the substrate processing system 1 includes a coating/developing device 2 and an exposure device 3.
- the exposure device 3 performs exposure processing of a resist film (photosensitive film) formed on a wafer (substrate). Specifically, the exposure apparatus 3 irradiates the exposure target portion of the resist film with an energy ray by a method such as immersion exposure.
- the coating/developing device 2 performs a process of forming a resist film on the surface of a wafer (substrate) before the exposure process of the exposure device 3 and a developing process of the resist film after the exposure process.
- the coating/developing device 2 includes a carrier block 4, a processing block 5, an interface block 6, and a control device 100 (control unit).
- the carrier block 4 is for coating and introducing the wafer into the developing device 2 and coating.
- the carrier block 4 can support a plurality of carriers 0 (accommodation section) for wafers and has a built-in transfer device 81 including a transfer arm.
- the carrier accommodates, for example, a plurality of circular wafers.
- the carrier device 1 takes out the wafers from the carrier (3 and transfers them to the processing block 5, receives the wafers from the processing block 5 and returns them into the carrier ⁇ .
- the processing block 5 has a plurality of processing modules 1 1, 1 2, 1 3 and 1 4.
- the treatment module 11 includes a plurality of coating units II 1 and a plurality of heat treatment units. ⁇ 02020/175194 4 (:171?2020/005872
- the processing module 11 forms the lower layer film on the surface of the wafer by the coating unit II 1 and the heat treatment unit II 2.
- the coating unit II 1 of the processing module 11 coats the processing liquid for forming the lower layer film on the wafer.
- the heat treatment unit II 2 of the treatment module 11 performs various heat treatments associated with the formation of the lower layer film.
- the heat treatment unit II 2 has, for example, a heat plate and a cooling plate built therein, and heats the wafer by the heat plate and cools the heated wafer by the cooling plate to perform heat treatment.
- the processing module 12 (deposition processing section) transfers a plurality of coating units II 1, a plurality of heat treatment units 2, a plurality of inspection units II 3 and wafers to these units. It has a built-in transfer device 3 (see also Fig. 3).
- the processing module 12 forms a resist film on the lower layer film by the coating unit II 1 and the heat treatment unit II 2.
- the coating unit II 1 of the processing module 12 forms a coating film 8 on the surface of the wafer by applying the processing liquid for forming the resist film onto the lower layer film. Further, the coating unit II 1 of the processing module 12 removes at least a part of the coating film.
- the coating unit II 1 of the processing module 12 removes the peripheral portion of the coating film after forming the coating film, so that the coating film with the peripheral portion removed (hereinafter referred to as “coating film 8 ”). Form.
- the coating unit II 1 of the processing module 12 coats the coating film with a chemical solution for removing the peripheral portion of the coating film.
- the coating unit II 1 of the processing module 12 may remove the peripheral portion of the coating film over the entire circumference of the wafer.
- the heat treatment unit II 2 of the treatment module 12 performs various heat treatments associated with the formation of the resist film.
- the heat treatment unit II 2 of the processing module 12 forms a resist film by performing heat treatment on the wafer on which the coating film is formed.
- the inspection unit 113 performs processing for inspecting the state of the front surface 3 of the wafer.
- the inspection unit II 3 acquires information indicating the state of the front surface 3 of the wafer (hereinafter referred to as “surface information”).
- surface information indicating the state of the front surface 3 of the wafer
- the coating film [and the resist film may be collectively referred to as a “resist film”.
- the processing module 12 has a plurality of coating units 11 1 (a plurality of processing units) for forming a resist film on the surface 3 of the wafer and removing at least a part of the resist film.
- the processing module 13 incorporates a plurality of coating units II 1, a plurality of heat treatment units II 2 and a transfer device 83 for transferring a wafer to these units.
- the processing module 13 forms an upper layer film on the resist film by the coating unit II 1 and the heat treatment unit II 2.
- the coating unit II 1 of the processing module 13 coats the liquid for forming the upper layer film on the resist film.
- the heat treatment unit 11 2 of the treatment module 13 performs various heat treatments associated with the formation of the upper layer film.
- the processing module 14 incorporates a plurality of coating units II 1, a plurality of heat treatment units II 2, and a transfer device 83 for transferring a wafer to these units.
- the processing module 14 develops the resist film after exposure with the coating unit II 1 and the heat treatment unit II 2.
- the coating unit 11 1 of the processing module 14 performs the developing process of the resist film by applying the developing solution on the surface of the exposed wafer and then rinsing it with the rinse solution.
- the heat treatment unit II 2 of the processing module 14 performs various heat treatments associated with the development processing.
- the heat treatment examples include a heat treatment before the development treatment (Mitsumi: ⁇ 3I, a father, ⁇ 3ri, “0Minami 8 1 ⁇ 6), and a heat treatment after the development treatment (Minor: ⁇ 3, Miho 8 1 ⁇ ) And the like.
- a shelf unit II 10 is provided on the carrier block 4 side in the processing block 5.
- the shelf unit 10 is divided into a plurality of cells arranged vertically.
- a transfer device 7 including a lifting arm is installed near the shelf unit II 10. The transfer device 87 raises and lowers the wafer between the cells of the shelf unit II 10.
- the shelf unit II is provided on the interface block 6 side in the processing block 5.
- shelf unit II 1 1 is provided. Shelf unit II 1 1 can be installed in multiple cells arranged vertically. ⁇ 02020/175194 6 ⁇ (: 171?2020/005872
- the interface block 6 transfers wafers to and from the exposure apparatus 3.
- the interface block 6 has a built-in transfer device 88 including a transfer arm and is connected to the exposure device 3.
- the transfer device 8 transfers the wafer placed on the shelf unit 11 1 1 to the exposure device 3, receives the wafer from the exposure device 3 and returns it to the shelf unit II 1 1.
- the transfer device 3 includes an arm 90, a movable part 91, a moving stage 92, and a movable part 93.
- the arm 90 horizontally supports the wafer to be transported.
- the movable part 91 moves the arm 90 back and forth along the direction in which the plurality of coating units II 1 are arranged (the direction of the vertical axis).
- the movable part 91 includes, for example, a linear actuator that moves the moving stage 92 along the axial direction.
- the movable part 91 may include an electric motor (power source) that generates a rotating torque, and a timing belt that spans a pair of pulleys.
- the timing belt converts the rotational torque generated by the motor into a translational force along the axial direction and transmits the translational force to the moving stage 92, and the moving stage 92 moves along the axial direction.
- the movable part 93 is provided on the moving stage 92 and moves together with the moving stage 92.
- the movable part 93 moves (moves in and out) the arm 90 along a direction (X-axis direction) orthogonal to the direction in which a plurality of coating units II 1 are arranged.
- the movable part 93 includes, for example, a linear actuator that moves the arm 90 along the X-axis direction.
- the movable portion 93 may include an electric motor (power source) that generates a rotating torque, and a timing belt that spans a pair of pulleys. For example, by the timing belt, the rotational torque by the motor is converted into a translational force along the X-axis direction and transmitted to the arm 90, and the arm 90 moves along the X-axis direction.
- the movable part 93 moves the arm 90 back and forth between the standby position and the advanced position.
- the standby position is within the area on the moving stage 92. ⁇ 02020/175194 7 ⁇ (: 171?2020/005872
- Position, and the advance position is a position outside the area on the moving stage 92.
- the movable parts 91, 93 respectively operate based on an operation instruction from the control device 100.
- a signal indicating the stroke amount of the arm 90 is sent to the movable parts 91 and 93 as an operation instruction.
- the amount of stroke of the arm 90 in the vertical axis direction is the movement distance of the arm 90 from the reference position with the end of the movable part 91 close to the shelf unit II 10 as the reference position.
- the stroke amount of the arm 90 in the X-axis direction is the movement distance of the arm 90 from the standby position to the advanced position.
- Each of the movable parts 91 and 93 may have an encoder that outputs a pulse signal corresponding to the amount of rotation of the motor from a predetermined position to the control device 100.
- the control device 100 outputs an operation instruction to the movable parts 9 1 and 9 3 so that the count value of the pulse signal becomes a preset target value (hereinafter referred to as “pulse target value”). To do.
- the coating unit II 1 is a coating solution for forming a resist film on the wafer surface. To form a resist film. Further, the coating unit 111 supplies a chemical solution for removing the resist coating to the peripheral portion of the resist coating to form the resist coating with the peripheral portion removed. The coating unit II 1 may supply a chemical solution for removing the resist film remaining after the peripheral portion has been removed to the surface of the wafer to peel the resist film from the wafer. The term "peeling" as used herein means to remove almost all of the resist film remaining on the surface 3 of the wafer. As shown in FIG. 4, the coating unit 11 1 has a rotation holding unit 20, a treatment liquid supply unit 30 and a chemical liquid supply unit 40.
- the rotation holding unit 20 holds and rotates the wafer.
- the rotation holding unit 20 has a holding unit 21 and a rotation driving unit 22. Holding part
- the rotation drive unit 2 2 uses, for example, an electric motor as a power source to rotate the holding unit 2 1 around the vertical central axis ⁇ 3 !_. ⁇ 02020/175194 8 ⁇ (: 171?2020/005872
- the treatment liquid supply unit 30 supplies the treatment liquid for forming the resist film onto the surface 3 of the wafer.
- the processing liquid supply unit 30 has a nozzle 31, a liquid source 32, a liquid feeding unit 33, and a nozzle moving unit 34.
- the nozzle 31 discharges the processing liquid toward the front surface 3 of the wafer.
- the liquid source 32 contains the treatment liquid and pressure-feeds the treatment liquid to the nozzle 31.
- the liquid feeding part 33 guides the processing liquid from the liquid source 32 to the nozzle 3 1.
- the liquid feeding section 33 has a liquid feeding line !_ 1 and a valve V 1.
- the liquid supply line !_ 1 connects the liquid source 3 2 and the nozzle 3 1.
- the valve V 1 is, for example, an air operation valve, and opens and closes the flow path in the liquid transfer line !_ 1.
- the nozzle moving unit 34 moves the nozzle 31 in the horizontal direction by using an electric motor or the like as a power source. For example, the nozzle moving unit 34 moves the nozzle 3 1 between the central axis (3!_ and the area outside the wafer.
- the valve V 1 and the nozzle moving unit 3 4 move from the control device 100. It operates based on the operation instruction.
- the chemical solution supply unit 40 is the surface of the wafer. Then, a chemical solution for removing the resist film is supplied.
- the chemical liquid is a solvent capable of removing (dissolving) the resist film formed by the processing liquid supplied from the processing liquid supply unit 30. Specific examples of the chemical solution include organic solvents such as thinner.
- the chemical liquid supply unit 40 has a nozzle 41, a liquid source 42, a liquid feeding unit 43, and a nozzle moving unit 44.
- the nozzle 41 discharges the chemical liquid toward the surface 3 of the wafer that is rotating by the rotation holding unit 20.
- the liquid source 42 stores the chemical liquid and pumps the chemical liquid to the nozzle 41 side.
- the liquid feeding unit 43 introduces the chemical liquid from the liquid source 42 to the nozzle 41.
- the liquid feeding section 43 has a liquid feeding line !_ 2 and a valve V 2.
- the liquid supply lines 1-2 connect the liquid source 4 2 and the nozzle 4 1.
- the valve V 2 is, for example, an air operation valve, and opens/closes the flow path in the liquid transfer line !_ 2.
- the valve 2 operates based on an operation instruction from the control device 100.
- the nozzle moving unit 44 moves the nozzle 41 in the horizontal direction by using an electric motor or the like as a power source.
- the nozzle moving unit 4 4 moves the nozzle 4 1 along the radial direction (for example, the axial direction) of the wafer held substantially horizontally when viewed from above. ⁇ 02020/175194 9 ((171?2020/005872
- the nozzle moving unit 44 moves the nozzle 41 along the radial direction of the wafer, so that the position of supplying the chemical solution from the nozzle 41 to the surface 3 changes. Therefore, the removal width of the peripheral edge portion of the resist film removed by the chemical liquid ejected from the nozzle 41 varies depending on the arrangement position of the nozzle 41.
- the nozzle moving unit 44 operates based on an operation instruction from the control device 100.
- the nozzle moving unit 44 may have an encoder that outputs a pulse signal according to the amount of rotation of the motor from a predetermined position to the control device 100. For example, the control device 100 outputs an operation instruction to the nozzle moving unit 44 so that the count value of the pulse signal becomes a preset target value (pulse target value).
- the chemical liquid supply section 40 includes a nozzle for discharging a chemical liquid for removing the peripheral portion of the resist film and a nozzle for discharging a chemical liquid for peeling the resist film from which the peripheral portion has been removed. You may have.
- the liquid chemical for removing the peripheral portion and the liquid easy for stripping the scab may be different from each other. In this case, the easy liquid supply section 40 may have two liquid supply sections and two liquid sources that respectively supply different chemical solutions to the nozzle.
- the inspection unit II 3 acquires image data as surface information indicating the state of the surface 3 by imaging the surface 3 of the wafer.
- the inspection unit 113 uses the notch formed in the wafer to adjust the orientation of the wafer.
- the inspection unit II 3 has a holding unit 51, a rotation drive unit 52, a notch detection unit 5 3 and an imaging unit 5 7 (surface inspection unit).
- the holding portion 51 is The central part of the horizontally arranged wafer is supported with the wafer facing upward, and the wafer is held by suction (for example, vacuum suction).
- the rotary drive unit 52 rotates the holding unit 5 1 about a vertical central axis by using, for example, an electric motor as a power source. This causes the wafer to rotate.
- the notch detector 53 detects the notch of the wafer.
- notch detector 53 detects the notch of the wafer. For example, notch detector
- the reference numeral 5 3 includes a light projecting section 55 and a light receiving section 5 6.
- the transmitter 5 5 is rotating. ⁇ 0 2020/175 194 10 ⁇ (: 171? 2020 /005872
- Light is emitted toward the peripheral edge of the wafer.
- the light projecting unit 55 is arranged above the peripheral portion of the wafer and emits light downward.
- the light receiving section 56 receives the light emitted by the light projecting section 55.
- the light receiving section 56 is arranged below the peripheral edge of the wafer ⁇ / ⁇ / so as to face the light projecting section 55.
- the rotation driving unit 52, the light projecting unit 55, and the light receiving unit 56 operate based on operation instructions from the control device 100.
- the light receiving section 56 outputs light reception information indicating the light reception result to the control device 100. Based on the received light information, the control unit 100 adjusts the notch so that it has a predetermined orientation. That is, the orientation of the wafer is adjusted.
- the imaging unit 57 is the surface of the wafer. Is a camera for capturing an image of at least the peripheral portion of the. For example, when the resist film with the peripheral edge portion removed is formed on the front surface 3 of the wafer, the imaging unit 57 is used to detect the front surface of the wafer in the imaging range including the outer edge of the resist film and the outer edge of the wafer. Image 3
- the image pickup section 57 is arranged above the wafer held by the holding section 51.
- the imaging unit 57 operates according to the operation instruction from the control device 100 and outputs the acquired image data to the control device 100. Based on the image data, the state of the front surface 3 of the wafer is inspected by the controller 100.
- the control device 100 controls each element included in the coating/developing device 2.
- the controller 100 is the surface of the wafer To form a resist film by coating unit II 1 and to remove the peripheral edge of the resist film by coating unit II 1 with a set removal width. Is configured to run. Further, the control device 100 is configured to execute an adjustment process of adjusting the removal width by setting the operating condition of the device that affects the removal width of the peripheral edge portion of the resist film in the process treatment. .. Details of these process treatments and adjustment treatments will be described later.
- control device 100 has a functional configuration as follows: ⁇ 02020/175194 11 11 (:171?2020/005872
- the operation command holding unit 110 stores information on the removal width of the peripheral portion of the resist film (hereinafter referred to as “holding information”).
- This retained information includes setting information (operating conditions) relating to the operation of the device that affects the removal width, and various conditions for executing the adjustment process that were previously input by the operator (worker) or another device. May be.
- the setting information includes the wafer holding position in the rotation holding unit 20 and the arrangement position of the nozzle 41 when removing the peripheral portion.
- the wafer holding position in the rotation holding unit 20 may be determined by the stroke amount of the arm 90 in the axial direction and the stroke amount in the axial direction.
- the execution conditions of the adjustment process include, for example, the target value of the removal width, the upper limit of the number of repetitions, and the limit value of the setting information.
- the removal control unit 101 is configured to perform removal of the peripheral edge portion of the resist coating film by the coating unit II1. Specifically, based on the information indicating the arrangement position of the nozzle 41 stored in the operation command holding unit 110, the removal control unit 101 determines that the nozzle 41 should be arranged at the arrangement position. Control the moving part 4 4. Further, the removal control section 10 1 controls the chemical solution supply section 40 so that the chemical solution for removing the peripheral portion of the resist film is discharged from the nozzle 4 1 arranged at the above arrangement position.
- the carry-in control unit 11 11 is configured to place the wafer on which the resist film has not been formed at a predetermined position of the rotation holding unit 20 by the transfer device 3.
- the carry-in control unit 1111 carries the wafer into the coating unit II 1 based on the information indicating the wafer holding position in the rotation holding unit 20 stored in the operation command holding unit 110, and rotates the wafer.
- the transfer device 3 is controlled so that the wafer is placed at the holding position in the holding unit 20.
- the carry-in control unit 11 1 may control the carrier device 8 3 so that the arm 90 moves by the stroke amount (pulse target value) according to the information indicating the holding position. ⁇ 0 2020/175194 12 12 (:171? 2020 /005872
- the accommodation control unit 102 causes the carrier 0 (the carrier 0 containing the wafer before formation of the resist film to carry out the wafer to be used in the adjustment process from the carrier 0 by the transfer device 8 1).
- the wafer after the film is peeled off is carried into the carrier ⁇ 3 by the carrying devices 8 1 and 8 3 (conveying unit).
- the stripping control section 103 is configured to strip the resist coating, the peripheral portion of which has been removed, by the coating unit 1.
- the peeling control unit 103 controls the nozzle moving unit 4 4 so that the nozzle 4 1 is arranged on the central axis ⁇ !_ of the wafer held by the rotation holding unit 20.
- the peeling control unit 103 controls the chemical liquid supply unit 40 so that the chemical liquid for peeling the resist coating is discharged from the nozzle 41 arranged on the central axis ⁇ 3!_.
- the condition setting unit 104 causes the imaging unit 57 to acquire the surface information indicating the state of the surface 3 of the wafer including the resist film from which the peripheral portion has been removed, and removes the peripheral portion based on the surface information. It is configured to perform width adjustment.
- the condition setting unit 104 has an imaging area 5
- the wafer containing the resist film The image pickup unit 57 is caused to acquire the image data indicating the state.
- the condition setting unit 104 measures the width of the image data from which the peripheral portion has been removed, and adjusts (corrects) the operating conditions of the device that affect the removal width, based on the measured value of the width. This adjusts the removal width of the peripheral portion.
- the state determination unit 105 causes the image pickup unit 57 to acquire image data as surface information indicating the state of the surface 3 of the wafer before the resist film is formed, and based on the image data, the removal width of the wafer is removed. Is configured to perform determining whether it is available for adjustment. For example, the state determination unit 105 causes the imaging unit 57 to image the surface 3 of the wafer in an imaging range that includes the entire surface 3 of the wafer before the coating film 8 is formed. The image pickup section 57 is caused to acquire image data indicating In addition, the state determination unit 105 Based on this image data, it is determined whether or not a film (for example, a resist film) remains on the surface W a of the wafer W. For example, when it is determined that a predetermined amount or more of resist film remains on the surface W a of the wafer W, the state determination unit 105 determines that the wafer W cannot be used for adjusting the removal width. ..
- a film for example, a resist film
- the film formation control unit 106 is configured to form a resist film on the front surface Wa of the wafer W by the coating unit U 1. Specifically, the film formation control unit 106 controls the nozzle moving unit 34 so that the nozzle 31 is arranged on the central axis CL of the wafer W held by the rotation holding unit 20. Further, the film formation control unit 106 controls the processing liquid supply unit 30 so that the processing liquid for forming the resist film is discharged from the nozzle 31 arranged on the central axis C L.
- the control device 100 is composed of one or more control computers.
- the controller 100 has the circuit 120 shown in FIG.
- the circuit 1 2 0 has one or a plurality of processors 1 2 1, a memory 1 2 2, a storage 1 2 3 and an input/output port 1 2 4.
- the storage 123 has a computer-readable storage medium such as a hard disk.
- the storage medium stores a program for causing the control unit 100 to execute the process processing procedure and adjustment processing procedure described later.
- the storage medium may be a removable medium such as a non-volatile semiconductor memory, a magnetic disk or an optical disk.
- the memory 1 2 2 temporarily stores the program read from the storage medium of the storage 1 2 3 and the calculation result by the processor 1 2 1.
- the processor 1 21 configures each functional module described above by executing the above program in cooperation with the memory 1 2 2.
- the input/output port 1 2 4 inputs/outputs an electric signal with a member to be controlled according to a command from the processor 1 2 1.
- each functional module of the control device 100 may be configured by a dedicated logic circuit or an integrated A S C (App l i cat i on Spec i f i c Integ rated C i rcu i t).
- This process procedure consists of forming a resist film on the surface 3 of the wafer by the coating unit II 1 (processing solution supply unit 30) and the removal width of the peripheral part of the resist film adjusted in the adjustment process procedure. And removing the peripheral portion with a coating unit II 1 (chemical solution supply unit 40).
- control device 100 first controls the transfer device 8 1 so as to transfer the wafer to be processed in the carrier 0 to the shelf unit II 10 and processes this wafer. Control the transport device 7 so that it is placed in the cell for module 1 1.
- controller 100 processes the wafers of the shelf unit II 10 into the processing module 1
- the transfer device 83 is controlled to transfer to the coating unit II 1 and the heat treatment unit II 2 in 1. Further, the controller 100 controls the coating unit 1 and the heat treatment unit II 2 so as to form an underlayer film on the surface of this wafer. After that, the control device 100 controls the transfer device 8 3 so that the wafer on which the lower layer film is formed is returned to the shelf unit II 10 and arranges this wafer in the cell for the processing module 12. Control the transport device 7.
- controller 100 processes the wafers on the shelf unit II 1 0 into the processing module 1
- the transfer device 83 is controlled to transfer to the coating unit II 1 and the heat treatment unit II 2 in 2. Further, the control unit 100 controls the coating unit 1 and the heat treatment unit II 2 so as to form a resist film on the lower layer film of this wafer. For example, the control unit 100 controls the coating unit II 1 so as to form a resist film (coating film) by coating a processing liquid for forming a resist film on the lower layer film of the wafer. Then, the control device 100 controls the coating unit 1 so as to remove the peripheral portion of the resist coating by coating the peripheral portion of the resist coating on the wafer with the chemical solution.
- the controller 100 controls the heat treatment unit 2 so as to subject the resist coating (coating film) to heat treatment. After that, the control device 100 ⁇ 02020/175194 15 ⁇ (: 171?2020/005872
- the carrier device 8 3 is controlled so as to be returned to the shelf unit II 10, and the carrier device 87 is controlled so that this wafer is placed in the cell for the processing module 13.
- the control unit 100 controls the transfer unit 3 to transfer the wafer to the inspection unit II 3, and the inspection unit II 3 is used to control the surface condition of the wafer. (Eg strip width) may be inspected.
- controller 100 processes the wafers of the shelf unit II 10 into the processing module 1
- the transfer unit 83 is controlled to transfer to each unit within 3, and the coating unit II 1 and the heat treatment unit II 2 are controlled to form the upper layer film on the resist film of this wafer. After that, the control device 100 controls the transfer device 3 to transfer the wafer to the shelf unit II 1 1.
- control device 100 controls the transfer device 8 so as to send the wafer on the shelf unit II 11 to the exposure device 3.
- control device 100 controls the transfer device 88 so as to receive the exposed wafer from the exposure device 3 and place the wafer in the cell for the processing module 14 in the shelf unit II 1 1.
- control device 100 controls the transfer device 8 3 to transfer the wafer of the shelf unit II 11 to each unit in the processing module 14, and develops on the resist film of this wafer.
- the coating unit 1 and the heat treatment unit 2 are controlled so that the treatment is performed.
- control device 100 controls the transfer device 83 to return the wafer to the shelf unit II 10 and controls the transfer device 7 and the transfer device 1 to return the wafer into the carrier ⁇ . This completes the process processing.
- This adjustment processing procedure consists of forming a resist film on the surface 3 of the wafer by the coating unit II 1 (processing liquid supply unit 30) and coating the peripheral portion of the resist film on the coating unit II 1 (chemical liquid supply unit 4). 0) is included.
- This adjustment processing procedure captures surface information indicating the state of the surface 3 of the wafer containing the resist coating with the peripheral portion removed. ⁇ 02020/175194 16 ⁇ (: 171?2020/005872
- the image area 57 is used to adjust the removal width of the peripheral portion based on the surface information, and the resist film from which the peripheral portion has been removed is peeled off by the coating unit II 1 (chemical solution supply portion 40).
- the control device 100 first executes step 3 0 1.
- the accommodation control unit 102 controls the transfer device 1 so that the wafer for adjustment processing is unloaded from the carrier ⁇ 3. Then, the accommodation control unit 102 controls the transfer device 81 so that the carried-out adjustment processing wafers are arranged in the cells for the processing modules 12 in the shelf unit II 10. After that, the accommodation control unit 102 controls the transfer device 3 to transfer the wafer for adjustment processing placed in the shelf unit II 10 to the inspection unit II 3.
- step 3002. the control device 100 executes step 3002.
- step 3002 the control device 100 executes pre-setting processing.
- the control unit 100 controls the inspection unit II 3 so that the orientation of the wafer for adjustment processing is aligned with a predetermined orientation.
- the control device 100 controls the rotation drive unit 5 2 based on the light reception information from the light receiving unit 5 6 so that the notch formed on the adjustment wafer is oriented in a predetermined direction.
- the orientation of the wafer notch becomes a predetermined orientation (for example, the X-axis negative direction).
- the state determination unit 105 causes the image capturing unit 57 to capture an image of the front surface 3 of the adjustment processing wafer on which the resist film is not formed, and image data indicating the state of the table is displayed. Is acquired by the imaging unit 57.
- the state determination unit 105 determines whether the wafer for adjustment processing can be used for adjustment of the removal width based on this image data.
- the status determination unit 105 is a window for adjustment processing. ⁇ 02020/175194 17 ⁇ (: 171?2020/005872
- control device 100 determines that the wafer for adjustment processing cannot be used to adjust the removal width, it interrupts the execution of the adjustment processing and executes the adjustment processing from the beginning using another wafer. May be.
- step 300 the condition setting unit 104 executes condition setting processing.
- the condition setting unit 104 forms a resist film for testing on the wafer for adjustment process, removes the peripheral edge of the resist film, and then affects the removal width of the device. Adjust the conditions. Details of the condition setting processing in step 303 will be described later.
- step 304 the accommodation control unit 102 controls the transfer devices 8 3 and 8 1 so that the wafer for adjustment processing for which the condition setting processing has been performed is carried into the carrier (3 ).
- step 300 the control device 100 executes step 300.
- step 305 for example, the accommodation control unit 102 removes the wafer for adjustment processing from the carrier (3 and places the wafer for adjustment processing in the cell for the processing module 12 in the shelf unit II 10).
- the transfer apparatus 1 is controlled so that the wafers for adjustment processing are transferred to the coating unit II 1 to be adjusted, and the control apparatus 100 transfers the wafers for adjustment processing placed on the shelf unit II 1 0.
- step 300 the control device 100 executes step 300.
- the peeling control unit 103 sets the surface of the wafer for adjustment processing.
- the chemical solution supply unit 40 of the coating unit 1 to be adjusted is controlled so as to peel off the resist film remaining on the top.
- the surface of the wafer for adjustment processing is The resist film (resist film 8) remains on the.
- the peeling control unit 10 ⁇ 02020/175194 18 ⁇ (: 171?2020/005872
- the nozzle moving unit 4 4 is controlled so that the nozzle 4 1 of the chemical solution supply unit 40 is arranged on the central axis (3 1_) of the wafer for adjustment processing held by the peeling control unit 10.
- 3 controls the valve V 1 of the chemical solution supply unit 40 so that the chemical solution 6 2 for peeling the resist film is discharged from the nozzle 41 arranged on the central axis ⁇ 3 !_.
- the controller 100 may control the rotation driving unit 22 of the rotation holding unit 20 so that the wafer for adjustment processing rotates while the ejection of the liquid is performed. 1 ( ⁇ ), the surface of the wafer for conditioning processing The resist coating is stripped from the.
- step 307 the accommodation control unit 102 controls the transfer devices 8 1 and 8 3 so that the wafer for adjustment processing after the resist film is peeled off is carried into the carrier ⁇ 3.
- step 308 the control unit 100 determines whether the end flag is O.
- the end flag is a flag for determining whether or not to end the adjustment process, and is set in the condition setting process of step 303.
- the end flag is preset to ⁇ before the adjustment process is executed.
- step 308 When it is determined in step 308 that the end flag is ⁇ (step 308: ⁇ 3), the control device 100 executes the processing of steps 301 to 308. repeat.
- step 308 When it is determined in step 308 that the end flag is ⁇ 1 ⁇ ! (step 308: N 0 ), the controller 100 ends the adjustment processing procedure.
- the control device 100 repeats the adjustment processing procedure until it is judged that the end flag is 0 ⁇ 1.
- the wafers for the same adjustment processing are used for the adjustment processing. Therefore, the controller 100 uses the same wafer for adjustment processing to adjust the coating unit II 1 to be adjusted. To be executed repeatedly.
- the controller 100 may execute the adjustment processing in the other coating unit among the plurality of coating units II 1 after the adjustment processing in the coating unit II 1 to be adjusted is executed. ..
- the control unit 100 may execute the process process after all of these adjustment processes are completed. ⁇ 02020/175194 19 ⁇ (: 171?2020/005872
- step 3 1 the control device 100 first executes step 3 1 1.
- step 311 for example, the carry-in control unit 1111 carries the wafer for adjustment processing from the inspection unit II3 to the coating unit II1 to be adjusted, and the rotation holding unit 20 receives the adjustment processing wafer. Control the carrier device 8 to place a wafer for use.
- the carry-in control unit 11 11 is based on the information indicating the wafer holding position in the rotation holding unit 20 stored in the operation command holding unit 1 10 (hereinafter referred to as “holding position information”).
- the wafer is loaded into the coating unit II 1 and the transfer device 8 3 is controlled so that the wafer is placed at the holding position in the rotation holding unit 20.
- the carry-in control unit 11 11 carries the wafer for adjustment processing and places it on the rotation holding unit 20 while the notch orientation adjusted in Step 30 2 is maintained.
- the carrier device 3 may be controlled.
- the carry-in control unit 1 1 1 sets the stroke amount (pulse set value) in the arm axis direction and the arm axis direction of the arm 90 on the basis of the holding position information, thereby performing adjustment processing.
- the transfer device 83 may be controlled so that the wafer is placed at the holding position in the rotary holding unit 20.
- step 312 the film formation control unit 106 controls the surface of the wafer for adjustment processing.
- the processing liquid supply unit 30 is controlled so as to form a resist film on the substrate.
- the film formation control unit 106 is arranged such that the nozzle 31 of the processing liquid supply unit 30 is at the center of the wafer held by the rotation holding unit 20.
- the nozzle moving part 34 is controlled so that it is arranged on the axis (3!_.)
- the film formation control part 106 forms the resist film from the nozzle 3 1 arranged on the central axis ⁇ !_.
- the valve V 1 of the processing liquid supply unit 30 is controlled so as to discharge the processing liquid 6 1.
- the processing wafer 6 1 is rotated so that the adjustment processing wafer is rotated while the processing liquid 6 1 is being discharged.
- the control device 100 may control the rotation driving part 22 of the rotation holding part 20. This allows the surface of the wafer for adjustment processing to be adjusted as shown in FIG. ⁇ 02020/175194 20 20 (: 171-12020/005872
- a resist film (coating film) is formed on 3.
- step 3 13 the removal control unit 101 determines, based on the information indicating the placement position of the nozzle 4 1 stored in the operation command holding unit 1 10 (hereinafter referred to as “placement position information”).
- the nozzle moving unit 4 4 is controlled so that the nozzle 4 1 is placed at the placement position.
- the removal control unit 101 sets the pulse target value in the nozzle moving unit 4 4 based on the arrangement position information, so that the nozzle moving unit 4 1 is arranged at the above-mentioned arrangement position. 4 4 may be controlled.
- step 3 1 4 as shown in Fig. 12 ( ⁇ ), the removal control unit 10 1 discharges the chemical liquid 6 2 for removing the resist film from the nozzle 4 1 arranged at the above arrangement position.
- the valve V 2 of the chemical solution supply section 40 is controlled so that the above operation is performed.
- the controller 100 may control the rotation drive unit 2 2 so that the wafer for adjustment processing rotates while the chemical liquid 62 is being discharged.
- FIG. 11 (3) the peripheral portion of the resist film is removed from the surface 3 of the wafer for adjustment processing.
- the control unit 100 transfers the wafer for adjustment processing including the resist film (coating film 8) whose peripheral portion has been removed to one of the heat treatment units II 2 in the processing module 12 so that the wafer is transferred.
- the device 3 is controlled to control the heat treatment unit 2 so that the resist coating is heat-treated.
- a resist film for testing is formed on the surface 3 of the wafer for adjustment processing.
- the control device 100 controls the transfer device 8 3 to transfer the wafer for adjustment processing to the inspection unit 3.
- Step 3 the control device 100 executes steps 3 15 and 3 16. Step 3
- condition setting unit 104 causes the image pickup unit 57 to acquire image data showing the state of the surface 3 of the wafer for adjustment processing after forming the resist film.
- condition setting unit 10 4 calculates the removal width of the removed peripheral portion based on the image data. For example, as shown in FIG. 13, the condition setting unit 104 uses the image data to determine the circumference at the center 1 of the wafer. ⁇ 0 2020/175 194 21 ⁇ (: 171? 2020 /005872
- condition setting unit 104 may calculate the removal width at the position where the notch is formed as the removal width 8 1.
- the condition setting unit 104 may calculate the average of the removal width ⁇ X I, eight lines 2, eight ones, eight two as the average removal width ⁇ . In addition, the condition setting unit 104 calculates the difference between the removal width ⁇ X 1 and the removal width 8 as the eccentricity value in the X-axis direction, and calculates the removal width 8 1 and the removal width 8 2. The difference may be calculated as the eccentricity value in the direction of the vertical axis.
- the eccentricity values 8 and 8 indicate the degree of deviation (the amount of deviation ⁇ ) between the center 1 of the wafer and the center 2 of the resist film. The values of the eccentricity values 8 and 8 vary depending on the wafer holding position in the rotary holding unit 20 when the peripheral edge is removed.
- step 317 the condition setting unit 104 determines whether the removal width calculated in step 316 (hereinafter referred to as "calculated removal width") is outside the predetermined target range. To do. For example, the condition setting unit 104 obtains the difference (deviation) between the removal width calculated in step 3116 and the target value that is the upper limit of the target range, and checks whether the difference has reached the predetermined level. To judge. As an example, the condition setting unit 104 determines whether the eccentricity values 8 and 8 are larger than the threshold value 1 and whether the deviation 5 between the average removal width ⁇ 8 and the target value is larger than the threshold value 2. You may decide whether or not. The condition setting unit 104 may determine that the calculated removal width is outside the target range when either one of the conditions is satisfied.
- the condition setting unit 104 may determine that the calculated removal width is outside the target range when either one of the conditions is satisfied.
- step 3 17 When it is determined in step 3 17 that the calculated removal width is outside the target range (step 3 17: No. 3), the control device 100 executes step 3 18.
- step 318 the condition setting unit 104 corrects the operating condition that affects the removal width so that the removal width is within the target range (close to the target value). A specific example of the procedure for correcting this operating condition will be described later.
- step 317 it is determined that the calculated removal width is within the target range. ⁇ 02020/175194 22 ⁇ (: 171?2020/005872
- step 3 17 the controller 100 executes step 3 19.
- step 319 the control device 100 sets the end flag to 0 ⁇ 1 ⁇ 1.
- Device 100 sets the end flag to 0 1 ⁇ !. As described above, the control device 100 completes the condition setting process.
- step 318 In this condition setting process, if the calculated removal width is outside the target range in step 317, the operation condition is corrected in step 318, and the end flag does not become 0 ⁇ 1 ⁇ 1. For this reason, step 3 0 1
- the adjustment process including the process of 08 is repeatedly executed. Each time it is repeatedly executed, in step 318, the operating condition is corrected so that the removal width approaches the target value. In other words, the control device 100 repeatedly executes the adjustment processing until the deviation between the removal width (calculated removal width) and the target value reaches a predetermined level.
- Fig. 10 is a flow chart showing an example of the procedure for correcting the operating conditions performed when calculating the eccentricity values 8 and 8 and the average removal width ⁇ in step 3 16.
- step 3 2 the condition setting unit 10 4 increments the variable ! ⁇ indicating the number of repetitions. In other words, the condition setting unit 104 adds 1 to the variable. The variable is set to 0 before the adjustment process is executed.
- step 3 2 2 the condition setting unit 104 determines whether or not the variable is smaller than a predetermined constant (for example, 1 ⁇ ! is an integer of 3 or more). When it is determined in step 3 2 2 that the variable is equal to or larger than the constant 1 ⁇ 1 (step 3 2 2 :N 0 ), the controller 100 executes step 3 30. Step 330 will be described later.
- step 3 2 2 When it is determined in step 3 2 2 that the variable ! ⁇ is smaller than the constant ! ⁇ 1. ⁇ 02020/175194 23 ⁇ (: 171?2020/005872
- Step 3 2 2 (Step 3 2 2 :Y E S) .
- the control unit 100 executes Step 3 2 3.
- step 3 23 for example, the condition setting unit 10 4 determines whether either one of the eccentricity values 8 and 8 is larger than the threshold value 1.
- step 3 2 3 determines whether either one of the eccentricity values 8 and 8 is greater than the threshold value 1 (step 3 2 3 :regular 3)
- the control unit 100 sets the step 3 Execute 2 4 and 3 2 5.
- step 3 2 3 When it is judged in step 3 2 3 that both the eccentricity values 8 and 8 are below the threshold value II 1 (step 3 2 3 :N 0)
- Control unit 100 does not execute steps 3 2 4 and 3 25.
- the condition setting unit 104 determines whether at least one of the eccentricity values 8 and 8 determined to be larger than the threshold value 1 is within the correctable range.
- the correctable range for the eccentricity values 8 and 8 may be stored in advance in the control device 100 (operation command storage unit 110) by the operator (worker). If it is determined in step 3 2 4 that either one of the eccentricity values 8 and 8 is not within the correctable range (step 3 2 4 :N 0 ), the control unit 1 ⁇ ⁇ determines that it is in step 3 3 Execute 0. When it is determined in step 3 2 4 that the eccentricity values 8 and 8 are within the correctable range (step 3 2 4 :regular 3), the control device 100 executes step 3 2 5. ..
- step 3 25 the condition setting unit 104 corrects the holding position information stored in the operation command holding unit 110 according to the eccentricity values 8 and 8. For example, the condition setting unit 104 corrects the holding position information according to the eccentricity values ⁇ X and ⁇ , so that the eccentricity values ⁇ X and ⁇ can approach the target value for the eccentricity value.
- the condition setting unit 104 may correct the holding position information by correcting the pulse target value for the motor included in the movable units 9 1 and 9 3.
- step 326 the condition setting unit 104 determines whether the deviation 5 between the average removal width ⁇ and the target value is larger than the threshold value 2. When it is determined that the deviation 5 is larger than the threshold value 2 in step 3 2 6 (step 3 2 6: Tomi 3), the control device 100 To execute. In steps 3 2 6 ⁇ 02020/175194 24 ⁇ (: 171?2020/005872
- step 3 2 6 :N 0 If it is determined that the deviation 5 is less than or equal to the threshold value 2 (step 3 2 6 :N 0 ), the control unit 1 Do not run.
- step 327 the condition setting unit 104 determines whether the deviation 8 is within the correctable range.
- the correctable range for the deviation 5 may be stored in advance in the control device 100 (motion command holding unit 110) by the operator (worker).
- the controller 100 executes step 330.
- the controller 100 executes step 288.
- step 328 the condition setting unit 104 calculates the correction amount for the arrangement position information of the nozzle 41 according to the deviation 5. For example, the condition setting unit 104 calculates the correction amount so as to shift the arrangement position of the nozzle 41 by the same amount as the value obtained by subtracting the target value by the average removal width ⁇ . Then, in step 329, the condition setting unit 104 corrects the arrangement position information stored in the operation command holding unit 110 using the correction amount calculated in step 328. For example, the condition setting unit 104 may correct the arrangement position information of the nozzle 41 by correcting the pulse target value for the mode in the nozzle moving unit 44 according to the correction amount.
- step 330 the condition setting unit 104 sets the end flag to ⁇ .
- the end flag will be ⁇ 1 ⁇ 1 when the number of repetitions exceeds the set number or when deviation 3 etc. is in the uncorrectable range. It shows that there is.
- the control device 100 completes the operation condition correction process. By performing the correction process of the illustrated operating conditions, the control device 100 causes the adjustment holding process to hold the adjustment holding wafer of the rotation holding unit 20 and the nozzle 41 for discharging the chemical liquid. Adjust the position and.
- control device 100 In the condition setting process and the operation condition correction process, the control device 100 ⁇ 02020/175194 25 ⁇ (: 171?2020/005872
- the average removal width ⁇ may be calculated, and the eccentricity values 8 and 8 may be calculated and the holding position information may be corrected without performing the adjustment of the nozzle position (correction of the arrangement position information) when discharging the chemical liquid. ..
- the control device 100 may calculate the average removal width ⁇ and correct the placement position information without calculating the eccentricity values 8 and 8 and correcting the holding position information.
- the control unit 100 (condition setting unit 10 4) controls whether one of the wafer holding position of the rotation holding unit 20 and the position of the nozzle 4 1 when discharging the chemical liquid is used in the adjustment process.
- the removal width may be adjusted by adjusting.
- the coating/developing apparatus 2 includes the processing module 1 2 (processing liquid supply unit 30 and chemical liquid) that forms the resist film on the surface 3 of the wafer and removes at least a part of the resist film.
- a supply unit 40 an imaging unit 57 that acquires surface information indicating the state of the surface 3 of the wafer, and a control unit 100 that controls the processing module 12 and the imaging unit 57.
- the controller 100 causes the treatment liquid supply unit 30 to form a resist film on the surface 3 of the wafer, removes the peripheral edge portion of the resist film by the chemical liquid supply unit 40, and removes the peripheral edge portion.
- the imaging unit 57 acquires surface information indicating the state of the surface 3 of the wafer including the resist film, adjusts the removal width of the peripheral portion based on the surface information, and removes the resist film from the peripheral portion. Is removed by the chemical solution supply unit 40, a control treatment including is performed, a resist film is formed on the front surface 3 of the wafer by the treatment liquid supply unit 30, and the removal width adjusted by the control treatment is adjusted. To remove the peripheral edge portion by the chemical liquid supply unit 40, and process processing including.
- the substrate treatment method according to the present embodiment is a treatment module 1 2 (treatment liquid supply unit 30 and chemical liquid supply unit 40 that performs formation of a film on the surface 3 of a wafer and removal of at least a part of the film. ) and thereby made form a resist film on the surface 3 of the Uweha by a Rukoto the peripheral portion of the resist film is removed by a chemical solution supply unit 4 0, the surface 3 of the wafer including the resist film peripheral portion is removed ⁇ 02020/175194 26 ⁇ (: 171?2020/005872
- the resist film from which the peripheral portion has been removed in the adjustment processing is peeled off. For this reason, the wafer from which almost all of the resist film has been removed can be used for other processing, so that the wafer used for adjusting the removal width can be effectively used in the coating/developing apparatus 2 and the substrate processing procedure. ..
- the control device 100 repeatedly executes the adjustment process until the deviation between the removal width and the target value reaches a predetermined level.
- a wafer for the adjustment process is required for each repetition.
- the control device 100 repeatedly executes the adjustment processing using the same wafer. By peeling off the resist film on the wafer, the adjustment process can be performed again using the wafer.
- the removal width is repeatedly adjusted using the same wafer, the influence of the individual difference between the wafers in adjusting the removal width is small. Therefore, the removal width can be adjusted with higher accuracy.
- the coating/developing device 2 further includes transport devices 1 and 3 for transporting wafers.
- the control device 100 conveys the carrier for accommodating the wafer on which the film has not yet been formed (the wafer for the adjustment process is carried out from the carrier 3 by the transfer device 1 and the wafer for the adjustment process after the film is peeled off). Carrying in carrier (3) by carrier devices 8 1 and 8 3 ⁇ 0 2020/175 194 27 ⁇ (: 171? 2020 /005872
- the wafer for adjustment processing is put into the carrier O in a reusable state, so that the wafer can be reused easily.
- the coating/developing apparatus 2 further includes a rotation holding unit 20 that holds and rotates the wafer.
- the processing liquid supply unit 30 and the chemical liquid supply unit 40 have a nozzle 41 for discharging the chemical liquid for removing the peripheral portion toward the wafer being rotated by the rotation holding unit 20.
- the controller 100 adjusts the removal width by adjusting at least one of the wafer holding position in the rotation holding unit 20 and the position of the nozzle 41 when discharging the chemical liquid.
- the wafer holding position in the rotary holding unit 20 and the placement position of the nozzle 41 have a great influence on the removal width of the peripheral portion, and therefore, by adjusting at least one of the holding position and the placement position, a higher level can be obtained. It is possible to accurately adjust the removal width.
- the control device 100 causes the imaging unit 57 to acquire the surface information indicating the state of the surface 3 of the wafer before the formation of the resist film, and based on the surface information, Further, it is performed to determine whether the wafer for adjustment processing is available for adjusting the removal width. Depending on the state of the front surface 3 of the wafer, the removal width may not be adjusted accurately.However, in the above configuration, it is determined whether the removal width can be used before adjusting the removal width. It becomes possible to adjust the width with higher accuracy.
- the control unit 100 can execute the adjustment treatment in any one of the plurality of application units II 1 (for example, the application unit II 1 to be adjusted). Good. Specifically, the controller 100 controls the application unit II 1 to be adjusted during the period in which a plurality of application units II 1 excluding the adjustment target application unit II 1 are performing the process treatment. At least one of the adjustment processes ⁇ 02020/175194 28 ⁇ (: 171?2020/005872
- control device 100 executes the process processing and performs a part of the adjustment processing (hereinafter, referred to as “process and adjustment parallel processing”) after all the adjustment processing is completed. It may be executed after shifting to. Alternatively, after the adjustment process is completed for some of the multiple coating units II 1, the parallel process and adjustment processes are executed so that the coating unit II 1 for which the adjustment process has been completed is sequentially processed. Good.
- the processing module 12 has a plurality of coating units 1 for forming a resist film and removing at least a part of the resist film.
- the control unit 10000 controls the application unit II 1 of the plurality of application units II 1 while the process operation is being executed by one of the application units II 1 of the plurality of application units II 1.
- the process processing can be executed without stopping the process processing due to the adjustment processing.
- the control unit 100 may perform the adjustment process in one coating unit II 1 while performing the adjustment process in the other coating unit II 1. Specifically, the control device 100 causes the application unit II 1 (for example, the application unit II 1 to be adjusted) out of the plurality of application units II 1 to execute the adjustment process. During the period, the other coating unit II 1 may be subjected to the conditioning process. The control device 100 uses a plurality of wafers for adjustment processing to cause a plurality of coating units II 1 to execute the adjustment processing in parallel (hereinafter referred to as “parallel processing of adjustment”).
- the control device 100 may perform the adjustment processing performed in the parallel processing of the process and the adjustment according to the modified example 1 by the same method as the parallel processing of the adjustment according to the modified example 2.
- the processing module 12 has a plurality of coating units 1 for forming a resist film and removing at least a part of the resist film.
- the control unit 100 controls the application unit II 1 among the application units II 1 while the adjustment process is being executed by any one of the application units II 1. ⁇ 02020/175194 29 ⁇ (: 171?2020/005872
- the processing module 1 2 is a coating unit 1 (first processing unit) for adjustment for forming a resist film and removing the peripheral portion, and a coating unit different from the coating unit II 1 for adjustment.
- Unit II 1 second treatment unit
- the chemical liquid supply unit 40 of the coating unit II 1 to be adjusted may or may not have the function of stripping the resist film.
- Another coating unit 11 1 may not have the processing liquid supply unit 30 and the chemical liquid supply unit 40 of the coating unit 11 1 may not have the function of removing the peripheral portion.
- the separate coating unit II 1 may be a unit dedicated to stripping the resist film.
- the control device 100 may perform the peeling of the resist film by another coating unit II 1 in the adjustment process for adjusting the removal width in the coating unit II 1 to be adjusted.
- the control unit 100 may execute the parallel processing of the process and adjustment according to Modification 1, You may perform parallel processing of such a mode.
- the processing module 12 includes a coating unit II 1 to be adjusted for forming a resist film and removing the peripheral portion, and another coating unit for peeling the resist film. II 1 and The control device 100 executes the second processing unit to peel off the resist film from which the peripheral edge portion has been removed in the adjustment process for adjusting the removal width in the coating unit II 1 to be adjusted. In this case, peeling of the resist film in the adjustment treatment is performed in another coating unit II 1, so that it is possible to proceed with the treatment in the coating unit II 1 for adjustment processing without waiting for the peeling treatment. ..
- the coating/developing device 2 may be of any type as long as it has a film forming processing unit for forming a resist film and removing the peripheral portion and a control device 100 capable of controlling the film forming processing unit.
- the film formation processing unit is not limited to the above-described configuration, and may have different units for forming a film, removing the peripheral portion, and peeling the film, for example.
- the inspection unit U 3 may be located outside the processing module 12. For example, the inspection unit U3 may be arranged in a part of the carrier block 4 or the shelf unit U10.
- the pre-processing in step S 02 and the acquisition of the surface information in step S 15 may be performed in different inspection units U 3.
- the removal width targeted for the adjustment process is not limited to the removal width in the resist film (resist film R).
- the removal width that is the target of the adjustment process may be the removal width of any film formed on the front surface Wa of the wafer W.
- the substrate to be processed is not limited to a semiconductor wafer, and may be, for example, a glass substrate, a mask substrate, or FPD (FlatPanelDiSpiLay).
- a 3 Transfer device 20 rotation holding part, 30 processing liquid supply part, 40 chemical supply part P, 41 nozzle, 57 imaging part, 100 control device, W wafer, Wa surface.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Robotics (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Coating Apparatus (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Materials For Photolithography (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020217030543A KR20210130200A (ko) | 2019-02-28 | 2020-02-14 | 기판 처리 장치, 기판 처리 방법 및 기억 매체 |
CN202080015127.4A CN113439235B (zh) | 2019-02-28 | 2020-02-14 | 基片处理装置、基片处理方法和存储介质 |
US17/434,160 US11905597B2 (en) | 2019-02-28 | 2020-02-14 | Substrate processing apparatus, substrate processing method and recording medium |
JP2021501953A JP7166427B2 (ja) | 2019-02-28 | 2020-02-14 | 基板処理装置、基板処理方法、及び記憶媒体 |
US18/408,801 US20240141501A1 (en) | 2019-02-28 | 2024-01-10 | Substrate processing method |
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JP2019-035707 | 2019-02-28 | ||
JP2019035707 | 2019-02-28 |
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US17/434,160 A-371-Of-International US11905597B2 (en) | 2019-02-28 | 2020-02-14 | Substrate processing apparatus, substrate processing method and recording medium |
US18/408,801 Division US20240141501A1 (en) | 2019-02-28 | 2024-01-10 | Substrate processing method |
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US (2) | US11905597B2 (ja) |
JP (1) | JP7166427B2 (ja) |
KR (1) | KR20210130200A (ja) |
CN (1) | CN113439235B (ja) |
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2020
- 2020-02-14 US US17/434,160 patent/US11905597B2/en active Active
- 2020-02-14 WO PCT/JP2020/005872 patent/WO2020175194A1/ja active Application Filing
- 2020-02-14 CN CN202080015127.4A patent/CN113439235B/zh active Active
- 2020-02-14 JP JP2021501953A patent/JP7166427B2/ja active Active
- 2020-02-14 KR KR1020217030543A patent/KR20210130200A/ko unknown
- 2020-02-14 TW TW109104674A patent/TW202040639A/zh unknown
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2024
- 2024-01-10 US US18/408,801 patent/US20240141501A1/en active Pending
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US20240141501A1 (en) | 2024-05-02 |
US11905597B2 (en) | 2024-02-20 |
KR20210130200A (ko) | 2021-10-29 |
JPWO2020175194A1 (ja) | 2021-12-16 |
CN113439235B (zh) | 2024-06-14 |
JP7166427B2 (ja) | 2022-11-07 |
CN113439235A (zh) | 2021-09-24 |
TW202040639A (zh) | 2020-11-01 |
US20220145468A1 (en) | 2022-05-12 |
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