WO2011074649A1 - 基板処理装置のメンテナンス方法および安全装置 - Google Patents
基板処理装置のメンテナンス方法および安全装置 Download PDFInfo
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- WO2011074649A1 WO2011074649A1 PCT/JP2010/072706 JP2010072706W WO2011074649A1 WO 2011074649 A1 WO2011074649 A1 WO 2011074649A1 JP 2010072706 W JP2010072706 W JP 2010072706W WO 2011074649 A1 WO2011074649 A1 WO 2011074649A1
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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
- H01L21/0274—Photolithographic processes
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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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- 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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2037—Exposure with X-ray radiation or corpuscular radiation, through a mask with a pattern opaque to that radiation
- G03F7/2039—X-ray radiation
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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
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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
- G03F7/70975—Assembly, maintenance, transport or storage of apparatus
Definitions
- the present invention relates to a maintenance method for a substrate processing apparatus such as an exposure apparatus.
- An exposure apparatus used in a photolithography process for manufacturing a liquid crystal display panel, a semiconductor device, or the like is covered with a chamber so that contaminants or impurities such as dust do not enter the apparatus because fine processing is performed on the substrate. Yes.
- the conventional exposure apparatus is provided with a safety device (interlock mechanism) that stops the drive unit in the exposure apparatus when the chamber door is opened (for example, see Patent Document 1).
- the present invention provides a maintenance method for a substrate processing apparatus capable of checking the drive state of a drive unit provided in a substrate processing apparatus such as an exposure apparatus and ensuring the safety of an operator when performing maintenance. And to provide a safety device.
- a first aspect of the present invention includes a drive unit that performs a predetermined operation for processing a substrate, a partition unit that partitions a drive area in which the drive unit is disposed, and a surrounding area around the drive area, and a drive area And a chamber main body that covers the surrounding area, an X-ray irradiation apparatus that is provided in at least one of the driving area and the surrounding area and that emits soft X-rays, and a processing unit that performs a predetermined process on the substrate.
- This is a maintenance method.
- the substrate processing apparatus maintenance method includes a first step of making the X-ray irradiation apparatus incapable of X-ray irradiation before the first door closing the first opening provided in the chamber body is opened.
- a drive unit that performs a predetermined operation for processing a substrate
- a partition unit that divides a drive area in which the drive unit is disposed, and a surrounding area around the drive area, and a drive area And a chamber main body covering the surrounding area
- an X-ray irradiation apparatus that is provided in at least one of the driving area and the surrounding area and irradiates soft X-rays.
- This safety device of the substrate processing apparatus is in a state in which the X-ray irradiation apparatus cannot perform X-ray irradiation in conjunction with an operation for opening the first door closing the first opening provided in the chamber body.
- a first interlocking mechanism for causing the drive unit to perform a predetermined operation in conjunction with an operation for opening the second door closing the second opening provided in the partitioning part.
- the aspect of the present invention it is possible to check the driving state of a driving unit provided in a substrate processing apparatus such as an exposure apparatus, and to ensure the safety of an operator when performing maintenance.
- FIG. 1 is a perspective view showing an appearance of the substrate processing apparatus EX.
- FIG. 2 is a schematic block diagram of the exposure apparatus FX on which the mask M and the substrate P are transported.
- FIG. 3 is a perspective view of the exposure apparatus FX on which the mask M and the substrate P are conveyed.
- FIG. 4 is a plan view of the substrate processing apparatus EX showing the mask loader MR and the substrate loader PR.
- FIG. 5 is a plan view for explaining the internal configuration of the exposure chamber 10A on the first floor of the substrate processing apparatus EX.
- FIG. 6 is a plan view for explaining the internal configuration of the exposure chamber 10B on the second floor of the substrate processing apparatus EX.
- FIG. 7 is a diagram showing the configuration of the first door DR1, the second door DR2, and the third door DR3.
- FIG. 7A shows the first door DR1, the second door DR2, or the third door DR3 closed.
- FIG. 7B is a diagram illustrating a state in which one door D1 (one door on the right hand side) of the first door DR1, the second door DR2, or the third door DR3 is opened.
- FIG. 8 is an enlarged view showing a state of the operation unit 23 when the first door DR1, the second door DR2, or the third door DR3 is opened.
- FIG. 9 is a circuit schematic diagram for explaining a safety device for stopping the drive unit.
- FIG. 10 is a flowchart showing steps when an operator enters the exposure chamber 10A and maintenance steps.
- FIG. 11 is a flowchart showing steps when an operator leaves the exposure chamber 10A after completing the maintenance.
- FIG. 1 is a perspective view showing an appearance of a substrate processing apparatus EX.
- the vertical direction is the Z-axis direction
- the plane perpendicular to the Z-axis direction is the XY plane.
- the substrate processing apparatus EX has an exposure chamber 10, a mask loader chamber 11, a substrate loader chamber 12, and a control unit 13.
- the exposure chamber 10 houses an exposure apparatus FX (see FIG. 2) that performs an exposure process on the substrate.
- the mask loader chamber 11 houses a mask loader MR (see FIG. 4).
- the substrate loader chamber 12 houses a substrate loader PR (see FIG. 4).
- the control unit 13 controls the substrate processing apparatus EX.
- the exposure chamber 10 is arranged near the center of the substrate processing apparatus EX.
- the mask loader chamber 11 is disposed on the ⁇ Y side of the exposure chamber 10.
- the substrate loader chamber 12 is disposed on the ⁇ X side of the exposure chamber 10.
- the control unit 13 is disposed outside the exposure chamber 10, the mask loader chamber 11, and the substrate loader chamber 12.
- the exposure chamber 10, the mask loader chamber 11, and the substrate loader chamber 12 have a dustproof function that prevents contaminants or impurities in the air from entering the exposure apparatus FX.
- the mask M includes a reticle on which a device pattern to be transferred to the substrate P is formed.
- the substrate P includes, for example, a rectangular substrate having a photosensitive film formed on a base material such as a glass plate and having one side of the base material of about 2000 mm or more.
- FIG. 2 is a schematic block diagram of the exposure apparatus FX on which the mask M and the substrate P are transported. In FIG. 2, for easy understanding, the light source for irradiating the exposure light is omitted.
- FIG. 3 is a perspective view of the exposure apparatus FX on which the mask M and the substrate P are conveyed. In FIG. 3, for ease of understanding, members such as a column holding the mask M and the substrate P are further omitted.
- the exposure apparatus FX has a mask stage MS that can move while holding a mask M on which a pattern to be transferred to the substrate P is formed, and a mask drive motor (not shown) that moves the mask stage MS.
- the exposure apparatus FX has a substrate stage PS that can move while holding the substrate P, and a substrate drive motor (not shown) that moves the substrate stage PS.
- the mask drive motor and the substrate drive motor are composed of, for example, a linear motor.
- the mask stage MS can be moved in the arrow AR1 direction (X-axis direction) by a mask drive motor (not shown).
- the mask stage MS is rotatable in a rotation direction ( ⁇ Z direction) about the Z axis.
- the substrate stage PS can be moved in the direction of the arrow AR2 (X-axis direction) and the direction of the arrow AR3 (Y-axis direction) by a substrate drive motor (not shown). Further, the substrate stage PS is movable in the ⁇ Z direction, the rotation direction around the X axis ( ⁇ X direction), and the rotation direction around the Y axis ( ⁇ Y direction).
- the exposure apparatus FX has an interference length measuring system as a stage measuring apparatus that measures position information of the mask stage MS and the substrate stage PS.
- the interference length measuring system includes a mask laser interference length measuring unit Mk that measures position information of the mask stage MS and a substrate laser interference length measuring unit Pk that measures position information of the substrate stage PS.
- the mask laser interference length measuring unit Mk can measure the position information of the mask stage MS using the measurement mirror 18 disposed on the mask stage MS.
- the substrate laser interference length measuring unit Pk can measure the position information of the substrate stage PS using the measurement mirror 19 arranged on the substrate stage PS.
- the exposure apparatus FX includes a substrate measuring apparatus (not shown) that measures the position of the substrate placed on the substrate stage PS.
- the substrate measuring apparatus detects a measurement pattern provided on the substrate and measures the position of the substrate in the plane direction (at least one of the X direction and the Y direction), and the substrate surface It includes at least one of a surface position measuring device that measures a position in the normal direction (Z direction) of the substrate surface based on reflected light of light incident from an oblique direction.
- the exposure apparatus FX further projects an illumination optical system IL that illuminates the mask M with exposure light from a light source (not shown), and a projection optical apparatus that projects an image of the pattern of the mask M illuminated with the exposure light onto the substrate P. And an optical system PL.
- the projection optical system PL has seven projection modules 14, and the illumination optical system IL has seven illumination modules 15 so as to correspond to the seven projection modules 14.
- the seven projection modules 14 are arranged along the X-axis direction, and four projection modules 14 are arranged in parallel to the three projection modules 14.
- the seven illumination modules 15 have the same arrangement corresponding to the seven projection modules 14.
- the number of projection modules 14 and illumination modules 15 is not limited to seven.
- the projection optical system PL may have eleven projection modules 14 and eleven illumination modules 15.
- the projection region 16 formed by the projection module 14 has a trapezoidal shape having an upper base and a lower base in the direction of the arrow AR4.
- the exposure apparatus FX projects an image of the pattern of the mask M onto the substrate P while moving the mask M and the substrate P synchronously in the directions of the arrows AR1 and AR2.
- the exposure apparatus FX illuminates the mask M with exposure light from the illumination optical system IL.
- the predetermined pattern transmitted through the mask M is projected onto the substrate P via the projection optical system PL.
- the mask M and the substrate P are synchronously moved by the mask stage MS and the substrate stage PS, and a predetermined pattern drawn on the mask M is exposed to the substrate P.
- FIG. 4 is a plan view of the substrate processing apparatus EX showing the mask loader MR and the substrate loader PR.
- the substrate processing apparatus EX shown in FIG. 4 includes a mask loader MR that transports the mask M into the exposure chamber 10 in the mask loader chamber 11. Further, the substrate processing apparatus EX includes a substrate loader PR that transfers the substrate P into the exposure chamber 10 in the substrate loader chamber 12.
- a mask buffer (not shown) is arranged in the mask loader chamber 11, and a plurality of masks M are stored in the mask buffer.
- the mask loader MR has a mask moving hand 81 that can move from the mask loader chamber 11 to the exposure chamber 10 in the + Y-axis direction.
- the mask moving hand 81 holds the mask M taken out from the mask buffer and conveys it into the exposure chamber 10.
- the mask moving hand 81 transports the mask M onto the mask stage MS and places it on the mask stage MS. Further, after the use of the mask M is completed, the mask moving hand 81 moves the mask M from the mask stage MS into the mask loader chamber 11.
- the mask M is stored in the mask buffer.
- the substrate loader PR has a substrate moving mechanism (not shown) that can move from the substrate loader chamber 12 to the exposure chamber 10.
- the substrate moving mechanism transports the substrate P in the substrate loader chamber 12 onto the substrate stage PS in the exposure chamber 10 and places it on the substrate stage PS. After the exposure, the substrate P is transferred again to the exposure chamber 10 by the substrate moving mechanism.
- FIG. 5 is a plan view for explaining the internal configuration of the exposure chamber 10A.
- the exposure chamber 10 ⁇ / b> A includes an outer wall 51 and a partition part 52.
- the partition part 52 divides the drive area DA1 and the surrounding area SA1.
- a drive part (substrate stage PS or the like) of the exposure apparatus FX is arranged in the drive area DA1 surrounded by the partition part 52.
- the surrounding area SA1 provided around the drive area DA1 is an area where the operator can perform maintenance work and observe the drive unit and the like in the drive area DA1.
- the partition part 52 is a panel board which has a grid
- the drive area DA1 is provided with two ionizers 20 as shown in FIG.
- An ionizer 20 as an X-ray irradiation apparatus irradiates soft X-rays to ionize the atmosphere and neutralize static electricity. Since soft X-rays irradiated from the ionizer 20 may adversely affect the human body, it is necessary to prevent the workers from being irradiated with soft X-rays.
- the installation place of the ionizer 20 is not limited only in the drive area DA1, and may be in the surrounding area SA1.
- the outer wall 51 of the exposure chamber 10A is formed with a first opening R1 (see FIG. 7B) for an operator to enter and leave, and a first door DR1 that closes the first opening R1 is formed. Is provided. Three first openings R1 are formed in the outer wall 51, and each is provided with a first door DR1 (first doors DR11, DR12, and DR13).
- the first door DR11 is provided on the outer wall 51 on the ⁇ Y side, and the first doors DR12 and DR13 are disposed on the outer wall 51 on the + Y side.
- the partition 52 is formed with a second opening R2 (see FIG. 7B) for an operator to enter and leave, and a second door DR2 is provided to close the second opening R2. It has been.
- Six second openings R2 are formed in the partition 52, and second doors DR2 (second doors DR21 to DR26) are provided in each of them.
- the second doors DR21 to DR23 are provided in the + Y side partition 52, and the second doors DR24 to DR26 are disposed in the ⁇ Y side partition 52.
- the first door DR1 (first door DR11 to DR13) and the second door DR2 (second door DR21 to DR26) stop the operation of driving units such as the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR.
- driving units such as the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR.
- an interlock mechanism is provided as a safety device that makes the operation impossible. This interlock mechanism will be described later.
- a second return button 31 is provided in the vicinity of the first door DR1 (for example, a range within 1 m).
- a first return button 21 is provided in the vicinity of the second door DR2 (for example, a range within 1 m).
- the first return button 21 is disposed on the drive area DA1 side near the second door DR2, and the second return button 31 is disposed on the surrounding area SA1 side near the first door DR1.
- the first return button 21 includes first return buttons 21a to 21f that are provided for the second doors DR21 to DR26 and can be identified.
- the second return button 21 includes second return buttons 31a to 31c that are provided for the first doors DR11 to DR13 and can be identified.
- the first return button 21 returns the drive units such as the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR arranged in the drive area DA1 from the interlock operation state (that is, the operation cannot be performed). Button to release the state).
- the second return button 31 is a button for returning the ionizer 20 from the interlock operating state (that is, releasing the state in which soft X-rays cannot be irradiated).
- FIG. 6 is a plan view for explaining the internal configuration of the exposure chamber 10B.
- the exposure chamber 10 ⁇ / b> B includes an outer wall 61 and a partition 62.
- the partition unit 62 separates the drive area DA2 and the surrounding area SA2.
- a drive unit (mask stage MS or the like) of the exposure apparatus FX is arranged in the drive area DA2 surrounded by the partition 62.
- the surrounding area SA2 provided around the drive area DA2 is an area where the operator can perform maintenance work and observe the drive unit of the drive area DA2.
- the partition part 62 has a grid
- the partition 62 is formed with a third opening R3 (see FIG. 7B) for an operator to enter and leave the drive area DA2 from the surrounding area SA2, and closes the third opening R3.
- a third door DR3 is provided.
- Three third openings R3 are formed in the partition 62, and a third door DR3 (second doors DR31 to DR33) is provided for each.
- the third doors DR31 and DR32 are provided in the + Y side partition 62, and the third door DR33 is disposed in the ⁇ Y side partition 62.
- a third return button 41 is provided in the vicinity of the third door DR3 (for example, within a range of 1 m).
- the third return button 41 is disposed on the side of the drive area DA2 near the third door DR3.
- the third return button 41 includes third return buttons 41a to 41c that are provided for each of the third doors DR31 to DR33 and can be identified.
- FIG. 7 (a) is a front view showing a state in which the first door DR1, the second door DR2, or the third door DR3 is closed.
- FIG. 7B is a front view showing a state in which the right side door D1 of the first door DR1, the second door DR2, or the third door DR3 is opened.
- the first door DR1 will be described as a representative.
- the first door DR1 is a double door comprising a single door D1 and a single door D2. Moreover, the operation part 23 divided into the single door D1 and the single door D2 is provided in the center part of the height direction of the 1st door DR1.
- the outer wall 51 of the exposure chamber 10A is formed with a first opening R1 (portion indicated by oblique lines).
- the first opening R1 is closed by the first door DR1.
- FIG. 8 is an enlarged view showing a state of the operation unit 23 when the first door DR1 is opened.
- the operation unit 23 has a lever 24 provided on the outer side of the first door DR1 (the outer side of the exposure chamber 10A) in order to open the first door DR1.
- the operation unit 23 is provided with a switch (not shown in FIG. 8; corresponding to ST11 shown in FIG. 9 and the like) that interlocks with the lever 24.
- the switch not shown in FIG. 8; corresponding to ST11 shown in FIG. 9 and the like
- the ionizer 20 (see FIGS. 5 and 6) cannot emit soft X-rays, but the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader arranged in the drive area DA1 or DA2. PR remains in a drivable state.
- the lever 24 of the second door DR21 or the third door DR31 provided in the partition part 52 or 62 is rotated clockwise from the reference position (for example, a position along the horizontal direction) to the predetermined angle ⁇ , respectively.
- the switch is cut off and the interlock is activated.
- the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR arranged in the drive area DA1 or DA2 cannot be driven.
- the lever 24 for operating the interlock is provided on the peripheral area SA1 side of the second door DR21 or the peripheral area SA2 side of the third door DR31.
- the interlock operates when the lever 24 corresponding to each door rotates by a predetermined angle ⁇ or more. For this reason, the irradiation of the soft X-rays of the ionizer 20 is stopped (the irradiation is disabled) only by rotating the lever 24 before the first door DR1 is opened. Further, the drive unit such as the substrate stage PS and the mask stage MS provided in the drive area DA1 or DA2 is stopped only by rotating the lever 24 before the second door DR2 or the third door DR3 is opened. Do (cannot be driven). Therefore, it is possible to reliably ensure the safety of an operator who enters the surrounding area SA1, the driving area DA1, or the driving area DA2 from the first door DR1, the second door DR2, or the third door DR3.
- the predetermined angle ⁇ from when the closed lever 24 is rotated until the switch is turned off may be an arbitrary angle as long as the first door DR1 can be opened after the rotation starts.
- FIG. 9 is a schematic diagram showing a schematic circuit configuration of an interlock mechanism provided in the substrate processing apparatus EX.
- the switches ST11 to ST13 shown in FIG. 9 correspond to the first doors DR11 to DR13 provided on the outer wall 51, respectively.
- the switches ST21 to ST26 correspond to the first doors DR21 to DR26 provided in the partition part 52, respectively.
- the switches ST31 to ST33 correspond to the third doors DR31 to DR33 provided in the partition 62, respectively.
- the switches ST11 to ST13 are connected in series to each other, and the switches ST21 to ST26 and the switches ST31 to ST33 are connected to each other in series.
- the switches ST11 to ST13 are connected in parallel with the switches ST21 to ST26 and the switches ST31 to ST33, and are connected to the ionizer 20 via the AND gate AG.
- These circuits constitute a first circuit LP1 surrounded by an alternate long and short dash line.
- the switches ST21 to ST26 and the switches ST31 to ST33 connect the power source VS and various driving units, respectively, and constitute a second circuit LP2 surrounded by a two-dot chain line.
- the drive unit includes a mask stage MS, a substrate stage PS, a mask loader MR, and a substrate loader PR arranged in the drive areas DA1 and DA2.
- second return buttons 31a to 31c are respectively connected to the switches ST11 to ST13
- first return buttons 21a to 21f are respectively connected to the switches ST21 to ST26
- third return buttons 41a to 41f are respectively connected to the switches ST31 to ST33. 41c are connected to each other.
- the ionizer 20 is brought into a state where it cannot irradiate soft X-rays.
- the mask stage MS, the substrate stage PS, the mask loader MR and the substrate loader PR are connected via the switches ST21 to ST26 and ST31 to ST33 connected in series. Can be connected to the power source VS. Therefore, even if any of the switches ST11 to ST13 is turned off, if the switches ST21 to ST26 and ST31 to ST33 are in the connected state, the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR are in an operable state. Can be maintained.
- the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR are driven. It becomes a state that can not be done.
- the switch ST12 corresponding to the first door DR12 is turned off. For this reason, the ionizer 20 is in a state where it cannot irradiate soft X-rays.
- the switch ST23 corresponding to the second door DR23 is shown in FIG. It will be in the cut state as shown.
- the second circuit LP2 including the switch ST23 is turned off. Accordingly, the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR cannot be operated. At this time, even if the switch ST12 is mistakenly restored, the switch ST23 is in a state of being turned off, so that the ionizer 20 maintains a state where the soft X-rays cannot be irradiated.
- FIG. 10 is a flowchart showing an operation procedure when an operator enters the exposure chamber 10A and performs maintenance.
- step S111 the operator rotates the lever 24 of the first door DR1 provided in the exposure chamber 10A in order to enter the inside of the exposure chamber 10A.
- step S112 the operator rotates the lever 24 of the first door DR1 by a predetermined angle ⁇ or more so that the ionizer 20 cannot be irradiated with soft X-rays.
- step S113 the operator enters the surrounding area SA1 through the first opening R1 where the first door DR1 is opened, and maintains the equipment disposed in the surrounding area SA1, or the exposure apparatus in the driving area DA1. Observe FX operation etc.
- step S114 the worker rotates the lever 24 of the second door DR2 provided in the partition 52 in order to enter the drive area DA1 from the surrounding area SA1.
- step S115 the operator rotates the lever 24 of the second door DR2 by a predetermined angle ⁇ or more so that the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR cannot be operated. As a result, the worker can enter the drive area DA1 safely.
- step S116 the operator enters the drive area DA1 through the second opening R2 where the second door DR2 is opened, and performs maintenance of the apparatus disposed in the drive area DA1.
- the maintenance work includes, for example, at least one of inspection, adjustment, cleaning, parts replacement, replenishment of consumables, and the like for the mask stage MS and the substrate stage PS.
- FIG. 11 is a flowchart showing an operation procedure when the operator finishes the maintenance and leaves the exposure chamber 10A.
- step S211 the worker who has finished the maintenance confirms that there is no other worker in the drive area DA1.
- step S212 the operator long presses the first return button 21 provided in the vicinity of the opened second door DR2.
- step S213 the worker enters the surrounding area SA1 from the second opening R2 where the second door DR2 is opened, and closes the second door DR2 from the surrounding area side.
- the interlocks that have been operated for the driving units such as the mask stage MS, the substrate stage PS, the mask loader MR, and the substrate loader PR are released (that is, the operation can be performed). No state is released).
- step S214 the worker who has left the driving area DA1 confirms that there is no other worker in the surrounding area SA1.
- step S215 the worker long presses the second return button 31 provided in the vicinity of the opened first door DR1.
- step S216 the operator moves out of the exposure chamber 10A from the first opening R1 where the first door DR1 is opened, and closes the first door DR1 from the outside of the exposure chamber 10A.
- the interlock operated for the ionizer 20 is released (that is, the state in which X irradiation cannot be performed is released).
- step S217 the operator initializes each part for which the interlock has been released (in other words, each part for which the interlock has been operated) by an initialization command.
- the aspect of the present invention is applied to a substrate processing apparatus including an exposure apparatus that performs an exposure process as a processing unit that performs a predetermined process on the substrate.
- the present invention is also applicable to a substrate processing apparatus including a film forming apparatus that forms a film of a photosensitive agent on a substrate, a developing apparatus that develops the photosensitive agent, an inspection apparatus that inspects the substrate, and the like. Aspects are applicable.
Abstract
Description
図1は、基板処理装置EXの外観を示す斜視図である。図1において、鉛直方向をZ軸方向とし、そのZ軸方向に垂直な平面をXY平面とする。
露光装置FXの構成について、図2および図3を参照しながら詳しく説明する。ここで、マスクMは、基板Pに転写されるデバイスパターンが形成されたレチクルを含む。基板Pは、例えばガラスプレート等の基材上に感光膜が形成された、基材の一辺が約2000mm以上の矩形の基板を含む。
図4は、マスクローダーMRおよび基板ローダーPRを示した基板処理装置EXの平面図である。図4に示された基板処理装置EXは、マスクローダーチャンバー11内に、マスクMを露光チャンバー10内へ搬送するマスクローダーMRを備えている。また基板処理装置EXは、基板ローダーチャンバー12内に、基板Pを露光チャンバー10内へ搬送する基板ローダーPRを備えている。
図1に示された基板処理装置EXの露光チャンバー10は二階建て構成である。まず、露光チャンバー10の1階部分の露光チャンバー10Aの内部構成について、図5を参照しながら説明する。図5は、露光チャンバー10Aの内部構成を説明するための平面図である。
次に、露光チャンバー10の2階部分の露光チャンバー10Bの内部構成について説明する。図6は、露光チャンバー10Bの内部構成を説明するための平面図である。
次に、第1扉DR1、第2扉DR2および第3扉DR3を説明する。
図9は、基板処理装置EXが備えるインターロック機構の概略の回路構成を示す模式図である。図9に示されたスイッチST11~ST13は、外壁51に設けられた第1扉DR11~DR13にそれぞれ対応する。スイッチST21~ST26は、仕切部52に設けられた第1扉DR21~DR26にそれぞれ対応する。また、スイッチST31~ST33は、仕切部62に設けられた第3扉DR31~DR33にそれぞれ対応する。
以下、基板処理装置EXのメンテナンス方法の一例を説明する。図10は、作業者が露光チャンバー10Aの内部に入ってメンテナンスを行う場合の作業手順を示したフローチャートである。
11 マスクローダーチャンバー
12 基板ローダーチャンバー
13 制御部
14 投影モジュール
15 照明モジュール
16 投影領域
17 照明領域
21、31、33、35、41 復帰ボタン
23 操作部
24 レバー
51 外壁
52 仕切部
61 外壁
62 仕切部
DA、DA1、DA2 駆動エリア
DR1(DR11~DR13)、DR2(DR21~DR26)、DR3(DR31~DR33) 扉
EX 基板処理装置
FX 露光装置
IL 照明光学系
LP1、LP2 回路
M マスク
MR マスクローダー
MS マスクステージ
P 基板
PL 投影光学系
PR 基板ローダー
PS 基板ステージ
R1、R2、R3 開口部
SA、SA1、SA2 周囲エリア
ST11~ST13、ST21~ST26、ST31~ST33 スイッチ
Claims (11)
- 基板を処理するための所定動作を行う駆動部と、該駆動部が配置される駆動エリアと該駆動エリアの周囲の周囲エリアとを区分する仕切部と、前記駆動エリアおよび前記周囲エリアを覆うチャンバー本体部と、前記駆動エリアおよび前記周囲エリアの少なくとも一方に設けられて軟X線を照射するX線照射装置と、前記基板に対して所定処理を行う処理部と、を備える基板処理装置のメンテナンス方法であって、
前記チャンバー本体部に設けられた第1開口を閉塞している第1扉が開扉される前に、前記X線照射装置をX線照射ができない状態にさせる第1工程と、
前記第1扉が開扉された後、前記仕切部に設けられた第2開口を閉塞している第2扉が開扉される前に、前記駆動部を前記所定動作が行えない状態にさせる第2工程と、
前記所定動作が行えない状態にされた前記駆動部および前記処理部の少なくとも一方のメンテナンスを行うメンテナンス工程と、
を含む基板処理装置のメンテナンス方法。 - 前記第1工程は、前記第1扉の外部側に設けられた第1レバーが回転された際に、前記X線照射装置をX線照射ができない状態にさせ、
前記第2工程は、前記第2扉の前記周囲エリア側に設けられた第2レバーが回転された際に、前記駆動部を前記所定動作が行えない状態にさせる請求項1に記載の基板処理装置のメンテナンス方法。 - 前記第1工程は、前記第1扉の外部側に設けられた第1レバーが基準の位置から第1角度以上回転された際に、前記X線照射装置をX線照射ができない状態にさせ、
前記第2工程は、前記第2扉の前記周囲エリア側に設けられた第2レバーが基準の位置から第2角度以上回転された際に、前記駆動部を前記所定動作が行えない状態にさせる請求項2に記載の基板処理装置のメンテナンス方法。 - 前記仕切部の前記駆動エリア側のうち前記第2扉付近に設けられた第1復帰ボタンを長押しした後、前記第2扉を閉扉して、前記駆動部の前記所定動作が行えない状態を解除させる第3工程と、
前記チャンバー本体部の前記周囲エリア側のうち前記第1扉付近に設けられた第2復帰ボタンを長押しした後、前記第1扉を閉扉して、前記X線照射装置の前記X線照射ができない状態を解除させる第4工程と、
を含む請求項1から請求項3のいずれか1項に記載の基板処理装置のメンテナンス方法。 - 前記所定動作が行えない状態が解除された前記駆動部の初期化を行う初期化工程を含む請求項4に記載の基板処理装置のメンテナンス方法。
- 前記メンテナンスは、点検、調整、清掃、部品交換、消耗品の補充のうち少なくとも1つを含む請求項1から請求項5のいずれか一項に記載の基板処理装置のメンテナンス方法。
- 前記駆動部は、
前記基板を保持して移動する基板ステージと、
前記基板に転写されるパターンが形成されたマスクを保持して移動するマスクステージと、
前記基板ステージに対して前記基板の搬送を行う基板搬送装置と、
前記マスクステージに対して前記マスクの搬送を行うマスク搬送装置と、の少なくとも1つを含む請求項1から請求項6のいずれか一項に記載の基板処理装置のメンテナンス方法。 - 前記処理部は、
前記パターンの像を前記基板に投影する投影光学装置と、
前記基板ステージおよび前記マスクステージの少なくとも一方の位置を計測するステージ計測装置と、
前記基板の位置を計測する基板計測装置と、の少なくとも1つを含む請求項1から請求項7のいずれか一項に記載の基板処理装置のメンテナンス方法。 - 基板を処理するための所定動作を行う駆動部と、該駆動部が配置される駆動エリアと該駆動エリアの周囲の周囲エリアとを区分する仕切部と、前記駆動エリアおよび前記周囲エリアを覆うチャンバー本体部と、前記駆動エリアおよび前記周囲エリアの少なくとも一方に設けられて軟X線を照射するX線照射装置と、を備える基板処理装置の安全装置であって、
前記チャンバー本体部に設けられた第1開口を閉塞している第1扉を開扉するための動作に連動して、前記X線照射装置をX線照射ができない状態にさせる第1連動機構と、
前記仕切部に設けられた第2開口を閉塞している第2扉を開扉するための動作に連動して、前記駆動部を前記所定動作が行えない状態にさせる第2連動機構と、
を備える基板処理装置の安全装置。 - 前記第1連動機構は、前記第1扉の外部側に設けられた第1レバーが回転される動作に連動して、前記X線照射装置をX線照射ができない状態にさせ、
前記第2連動機構は、前記第2扉の前記周囲エリア側に設けられた第2レバーが回転される動作に連動して、前記駆動部を前記所定動作が行えない状態にさせる請求項9に記載の基板処理装置の安全装置。 - 前記第1連動機構は、前記第1扉の外部側に設けられた第1レバーが基準の位置から第1角度以上回転される動作に連動して、前記X線照射装置をX線照射ができない状態にさせ、
前記第2連動機構は、前記第2扉の前記周囲エリア側に設けられた第2レバーが基準の位置から第2角度以上回転される動作に連動して、前記駆動部を前記所定動作が行えない状態にさせる請求項10に記載の基板処理装置の安全装置。
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