WO2022254486A1 - プリウェットモジュール、およびプリウェット方法 - Google Patents
プリウェットモジュール、およびプリウェット方法 Download PDFInfo
- Publication number
- WO2022254486A1 WO2022254486A1 PCT/JP2021/020614 JP2021020614W WO2022254486A1 WO 2022254486 A1 WO2022254486 A1 WO 2022254486A1 JP 2021020614 W JP2021020614 W JP 2021020614W WO 2022254486 A1 WO2022254486 A1 WO 2022254486A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wet
- substrate
- degassing
- processed
- cleaning
- Prior art date
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- 238000009736 wetting Methods 0.000 title abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 138
- 239000007788 liquid Substances 0.000 claims abstract description 118
- 238000007872 degassing Methods 0.000 claims abstract description 84
- 238000004140 cleaning Methods 0.000 claims abstract description 75
- 238000000034 method Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000003028 elevating effect Effects 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 23
- 238000007747 plating Methods 0.000 description 33
- 230000032258 transport Effects 0.000 description 25
- 239000000428 dust Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—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
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
Definitions
- This application relates to a pre-wet module and a pre-wet method.
- Plating equipment for plating substrates (for example, semiconductor wafers) consists of a pre-wet module that performs various pretreatments such as degassing on substrates, and a plating module that performs plating on pretreated substrates. module and;
- Patent Document 1 a holder holding a substrate is placed in a pre-wetting tank, and pre-treatment is performed by supplying a pre-wetting liquid to the space while evacuating the space where the surface to be processed of the substrate is exposed.
- a pre-wet module is disclosed.
- the conventional technology has room for improvement in terms of improving the efficiency of the cleaning process and the degassing process of the surface to be processed of the substrate.
- the pre-wet liquid is filled in the space where the surface to be processed of the substrate is exposed and the degassing process is performed, there is a risk that dust inside the pattern formed on the surface to be processed cannot be removed. . Further, even if the dust and the like can be removed outside the pattern, the space where the surface to be processed of the substrate is exposed is a closed space, so there is a possibility that the dust will adhere to the surface to be processed of the substrate again, resulting in insufficient cleaning. There is a possibility that it will not. Further, in the prior art, the degassing process is performed while the substrate is suspended vertically. Therefore, since the surface to be processed of the substrate faces the lateral direction, there is a possibility that the process of replacing the air inside the pattern formed on the surface to be processed with the degassed liquid may not be performed efficiently.
- one object of the present application is to improve the efficiency of the cleaning process and the degassing process of the surface to be processed of the substrate.
- a stage is configured to hold the back surface of a substrate with the surface to be processed facing upward
- a rotation mechanism is configured to rotate the stage, and is opposed to the surface to be processed of the substrate.
- a pre-wet chamber having a cover member having a facing surface facing the same, and a cylindrical member attached to an outer edge of the facing surface of the cover member; an elevating mechanism configured to raise and lower the pre-wet chamber; a deaerated liquid supply member configured to supply a deaerated liquid to a pre-wet space formed between the pre-wet chamber and the surface to be processed of the substrate; and a cleaning liquid supply member configured to supply cleaning liquid to the surface to be processed of the substrate through the nozzle.
- FIG. 1 is a perspective view showing the overall configuration of the plating apparatus of this embodiment.
- FIG. 2 is a plan view showing the overall configuration of the plating apparatus of this embodiment.
- FIG. 3 is a vertical cross-sectional view schematically showing the configuration of the pre-wet module of one embodiment.
- FIG. 4 is a vertical cross-sectional view schematically showing a state in which a cleaning process is being performed using the pre-wet module of one embodiment.
- FIG. 5 is a vertical cross-sectional view schematically showing the configuration of a pre-wet module of another embodiment.
- FIG. 6 is a flowchart illustrating a prewetting method using the prewetting module of one embodiment.
- FIG. 1 is a perspective view showing the overall configuration of the plating apparatus of this embodiment.
- FIG. 2 is a plan view showing the overall configuration of the plating apparatus of this embodiment.
- the plating apparatus 1000 includes a load port 100, a transfer robot 110, an aligner 120, a pre-wet module 200, a pre-soak module 300, a plating module 400, a cleaning module 500, a spin rinse dryer 600, and a transfer device. 700 and a control module 800 .
- the load port 100 is a module for loading substrates stored in cassettes such as FOUPs (not shown) into the plating apparatus 1000 and for unloading substrates from the plating apparatus 1000 to cassettes. Although four load ports 100 are arranged horizontally in this embodiment, the number and arrangement of the load ports 100 are arbitrary.
- the transport robot 110 is a robot for transporting substrates, and is configured to transfer substrates among the load port 100 , the aligner 120 and the transport device 700 . When transferring substrates between the transfer robot 110 and the transfer device 700, the transfer robot 110 and the transfer device 700 can transfer the substrates via a temporary placement table (not shown).
- the aligner 120 is a module for aligning the positions of orientation flats, notches, etc. of the substrate in a predetermined direction. Although two aligners 120 are arranged horizontally in this embodiment, the number and arrangement of the aligners 120 are arbitrary.
- the pre-wet module 200 replaces the air inside the pattern formed on the substrate surface with the treatment liquid by wetting the surface to be plated of the substrate before the plating treatment with a treatment liquid such as pure water or degassed water.
- the pre-wet module 200 is configured to perform a pre-wet process that facilitates the supply of the plating solution to the inside of the pattern by replacing the treatment solution inside the pattern with the plating solution during plating. Although two pre-wet modules 200 are arranged vertically in this embodiment, the number and arrangement of the pre-wet modules 200 are arbitrary.
- the presoak module 300 for example, an oxide film having a large electric resistance existing on the surface of a seed layer formed on the surface to be plated of the substrate before plating is etched away with a processing liquid such as sulfuric acid or hydrochloric acid, and the surface of the plating substrate is cleaned.
- a processing liquid such as sulfuric acid or hydrochloric acid
- it is configured to perform a pre-soak process for activation.
- two presoak modules 300 are arranged side by side in the vertical direction, but the number and arrangement of the presoak modules 300 are arbitrary.
- the plating module 400 applies plating to the substrate.
- the cleaning module 500 is configured to perform a cleaning process on the substrate in order to remove the plating solution and the like remaining on the substrate after the plating process.
- the spin rinse dryer 600 is a module for drying the substrate after cleaning by rotating it at high speed. Although two spin rinse dryers are arranged vertically in this embodiment, the number and arrangement of the spin rinse dryers are arbitrary.
- the transport device 700 is a device for transporting substrates between a plurality of modules within the plating apparatus 1000 .
- Control module 800 is configured to control a plurality of modules of plating apparatus 1000 and may comprise, for example, a general purpose or dedicated computer with input/output interfaces to an operator.
- a substrate stored in a cassette is loaded into the load port 100 .
- the transport robot 110 takes out the substrate from the cassette of the load port 100 and transports the substrate to the aligner 120 .
- the aligner 120 aligns orientation flats, notches, etc. of the substrate in a predetermined direction.
- the transport robot 110 transfers the substrate aligned by the aligner 120 to the transport device 700 .
- the transport device 700 transports the substrate received from the transport robot 110 to the pre-wet module 200 .
- the pre-wet module 200 pre-wets the substrate.
- the transport device 700 transports the pre-wet processed substrate to the pre-soak module 300 .
- the presoak module 300 applies a presoak treatment to the substrate.
- the transport device 700 transports the presoaked substrate to the plating module 400 .
- the plating module 400 applies plating to the substrate.
- the transport device 700 transports the plated substrate to the cleaning module 500 .
- the cleaning module 500 performs a cleaning process on the substrate.
- the transport device 700 transports the cleaned substrate to the spin rinse dryer 600 .
- a spin rinse dryer 600 performs a drying process on the substrate.
- the transport device 700 delivers the dried substrate to the transport robot 110 .
- the transport robot 110 transports the substrate received from the transport device 700 to the cassette of the load port 100 . Finally, the cassette containing the substrates is unloaded from the load port 100 .
- FIG. 3 is a longitudinal sectional view schematically showing the configuration of the pre-wet module of one embodiment.
- FIG. 4 is a vertical cross-sectional view schematically showing a state in which a cleaning process is being performed using the pre-wet module of one embodiment.
- the pre-wet module 200 comprises a disc-shaped stage 220 configured to hold the substrate WF.
- the stage 220 has a substrate holding surface 220a for holding the back surface of the surface to be processed WF-a of the substrate WF, and is configured to hold the substrate WF with the surface to be processed WF-a facing upward. It is
- the stage 220 is connected to a vacuum source (not shown) and configured to hold the substrate WF by vacuum-sucking the rear surface of the substrate WF.
- Pre-wet module 200 includes a rotation mechanism 224 configured to rotate stage 220 about the axis of shaft 222 .
- Rotation mechanism 224 is configured to rotate stage 220 during cleaning and degassing processes.
- the pre-wet module 200 includes a pre-wet chamber 260 arranged above the stage 220 .
- the pre-wet chamber 260 includes a disk-shaped lid member 262 having a facing surface 262a facing the surface to be processed WF-a of the substrate WF, and a cylindrical member 264 attached to the outer edge of the facing surface 262a of the lid member 262. and have
- the pre-wet module 200 comprises a resilient member 265 attached to the lower end of tubular member 264 .
- the elastic member 265 is, for example, an O-ring.
- the pre-wet module 200 includes a lift mechanism 230 configured to lift the pre-wet chamber 260.
- the elevating mechanism 230 is configured to elevate the pre-wet chamber 260 by elevating a bracket 234 attached to the pre-wet chamber 260 along a vertically extending shaft 232 .
- the lifting mechanism 230 can be implemented by a known mechanism such as a motor.
- the lift mechanism 230 is configured to lift the pre-wet chamber 260 between the degassing position shown in FIG. 3 and the cleaning position shown in FIG. As shown in FIG. 4, the cleaning position is a position where the pre-wet chamber 260 (elastic member 265) and the surface to be processed WF-a of the substrate WF are out of contact.
- the degassing position is a position lower than the cleaning position. This is the contact position.
- the diameter of the cylindrical member 264 and the diameter of the substrate WF are substantially the same, and the elastic member 265 contacts the outer edge of the surface to be processed WF-a of the substrate WF. , but not limited to this.
- the diameter of the tubular member 264 may be formed larger than the diameter of the substrate WF so that the elastic member 265 contacts the substrate holding surface 220a.
- a pre-wet space 269 is formed between the pre-wet chamber 260 and the surface to be processed WF-a of the substrate WF when the pre-wet chamber 260 is at the degassing position.
- the pre-wet module 200 includes a degassed liquid supply member 204 for supplying degassed liquid (eg, degassed water) to the pre-wet space 269 .
- the pre-wetting module 200 includes a degassing liquid pipe 240 that connects the degassing liquid supply member 204 and the pre-wetting space 269 via a tubular member 264, and a degassing liquid pipe 240 configured to open and close the degassing liquid pipe 240. and a liquid valve 242 .
- Degassing liquid valve 242 is configured to be closed when degassing is not being performed and to be open when degassing is being performed.
- the degassed liquid supply member 204 supplies the degassed liquid to the pre-wet space 269 through the degassed liquid pipe 240 in a state where the pre-wet chamber 260 is placed at the degassing position by the elevating mechanism 230 as shown in FIG. configured to supply
- the pre-wet module 200 includes a plurality of nozzles 268 attached to the facing surface 262a of the lid member 262.
- the pre-wet module 200 includes a cleaning liquid supply member 202 configured to supply a cleaning liquid (eg, pure water) to the surface to be processed WF-a of the substrate WF through a nozzle 268 .
- the pre-wet module 200 includes a cleaning fluid line 270 connecting the cleaning fluid supply member 202 and the nozzle 268 and a cleaning fluid valve 272 configured to open and close the cleaning fluid line 270 .
- the cleaning fluid valve 272 is configured to be closed when the cleaning process is not being performed and open when the cleaning process is being performed.
- the cleaning liquid supply member 202 supplies the cleaning liquid to the surface to be processed WF-a of the substrate WF through the nozzle 268 in a state where the pre-wet chamber 260 is arranged at the cleaning position by the elevating mechanism 230 as shown in FIG. configured to
- the pre-wet module 200 includes a substrate station 250 for transferring substrates WF to and from the stage 220 .
- the substrate station 250 includes a first arm member 250-1 and a second arm member 250-2 for holding the back surface of the surface to be processed WF-a of the substrate WF.
- the first arm member 250-1 and the second arm member 250-2 are horizontally arranged and spaced apart.
- the first arm member 250-1 and the second arm member 250-2 are movable horizontally and vertically by a driving device (not shown).
- the substrate station 250 is configured to place the substrate WF received from the transport device 700 on the stage 220 , receive the substrate WF for which cleaning processing and deaeration processing have been completed from the stage 220 , and transfer the substrate WF to the transport device 700 .
- the pre-wet module 200 includes an open pipe 290 that communicates a pre-wet space 269 with the outside (atmosphere) of the pre-wet chamber 260 via a lid member 262, and an open valve 292 configured to open and close the open pipe 290. , provided.
- the release valve 292 is configured to be open until the pre-wet space 269 is filled with the degassing liquid during the degassing process. That is, if air exists in the pre-wet space 269 during the degassing process, the air may dissolve in the degassed liquid and the efficiency of the degassing process may be lowered.
- open valve 292 is opened so that the air escapes from the pre-wet space 269 which is a closed space.
- open valve 292 is configured to close once pre-wet space 269 is filled with degassed liquid. This is because, even after the pre-wet space 269 is filled with the degassed liquid, if the degassed liquid supply member 204 continues to supply the degassed liquid to accelerate the degassing process, the open valve 292 remains open. This is because the degassed liquid flows out through the open pipe 290 if there is.
- the pre-wet module 200 also includes a discharge pipe 280 for discharging the degassed liquid stored in the pre-wet space 269 through the cylindrical member 264, and a discharge valve configured to open and close the discharge pipe 280. 282;
- the discharge pipe 280 is connected to a buffer tank 286 .
- the discharge valve 282 is configured to be closed while the degassing process is being performed and to be opened when the degassing process is finished. After the degassing process is completed, the degassed liquid is stored in the buffer tank 286 through the discharge pipe 280 .
- the pre-wet module 200 includes a bypass pipe 294 connecting the open pipe 290 and the exhaust pipe 280 and a bypass valve 296 configured to open and close the bypass pipe 294 .
- the bypass pipe 294 connects the pre-wet space 269 side of the open valve 292 of the open pipe 290 and the buffer tank 286 side of the discharge pipe 280 of the discharge valve 282 .
- Bypass valve 296 is configured to be closed during the degassing process until pre-wet space 269 is filled with degassed liquid. When the bypass valve 296 is open, air is sent to the buffer tank 286 through the open line 290, the bypass line 294, and the discharge line 280 until the pre-wet space 269 is filled with the degassed liquid.
- bypass valve 296 is configured to be opened once pre-wet space 269 is filled with degassed liquid. This is because, even after the pre-wet space 269 is filled with the degassed liquid, if the degassed liquid continues to be supplied from the degassed liquid supply member 204 in order to promote the degassing process, the degassed liquid flowing through the open pipe 290 will be degassed. This is to send liquid to buffer tank 286 via bypass line 294 and discharge line 280 .
- the degassing process can be performed with the surface to be processed WF-a of the substrate WF facing upward. Therefore, the air inside the pattern such as the resist on the surface to be processed WF-a rises and dissolves easily into the degassed liquid, and as a result, the air inside the pattern can be efficiently replaced with the degassed liquid. Further, according to the pre-wet module 200 of the present embodiment, the surface to be processed WF-a is cleaned by injecting the cleaning liquid from the nozzles 268 arranged to face the surface to be processed WF-a. Dust and the like inside the pattern of -a can be efficiently washed out from the inside of the pattern.
- the cleaning process is performed while the stage 220 is rotated in the cleaning position where the pre-wet chamber 260 does not come into contact with the surface to be processed WF-a of the substrate WF. Therefore, dust or the like washed out from inside the pattern can flow out to the outside in the radial direction of the substrate WF without adhering to the surface to be processed WF-a again.
- the efficiency of the cleaning process and the degassing process can be improved.
- FIG. 5 is a vertical cross-sectional view schematically showing the configuration of a pre-wet module of another embodiment.
- the embodiment shown in FIG. 5 is similar to the embodiment shown in FIG. 4 except that the elastic member 265 is not attached to the lower end of the tubular member 264 and the degassing position of the pre-wet chamber 260 is different. Therefore, descriptions of redundant configurations are omitted.
- the degassing position is a position where a gap 266 is formed between the lower end of the cylindrical member 264 and the surface to be processed WF-a of the substrate WF, as shown in FIG.
- the elevating mechanism 230 moves the pre-wet chamber 260 to the degassing position where the gap 266 is formed between the lower end of the tubular member 264 and the surface to be processed WF-a of the substrate WF. configured to place Due to the gap 266 being formed, the degassed liquid supplied to the pre-wet space 269 during the degassing process leaks out of the pre-wet space 269 through the gap 266 .
- the gap 266 is designed such that the amount of degassed liquid leaking from the gap 266 is smaller than the amount of degassed liquid supplied from the degassed liquid supply member 204 to the pre-wet space 269 during the degassing process.
- the interval is, for example, several cm or less, preferably several mm or less.
- the degassed liquid leaks from the gap 266 during the degassing process, the degassed liquid flows from the center to the outer edge of the surface to be processed WF-a of the substrate WF. is formed. Therefore, the degassed liquid in which the air inside the pattern such as the resist on the processed surface WF-a is dissolved is leaked from the gap 266, and the degassed liquid not containing the air supplied from the degassed liquid supply member 204 is supplied to the processed surface. It can be sent to WF-a sequentially. As a result, the air inside the pattern can be efficiently replaced with the degassed liquid, so the degassing process can be performed efficiently.
- FIG. 6 is a flowchart illustrating a prewetting method using the prewetting module of one embodiment.
- the substrate station 250 places the substrate WF on the stage 220 with the surface to be processed WF-a facing upward (placement step 101).
- the pre-wetting method rotates the stage 220 by the rotation mechanism 224 (rotation step 102). Rotation step 102 continues until subsequent cleaning and degassing processes are completed.
- the pre-wet method then places the pre-wet chamber 260 in the cleaning position (first placement step 103). Subsequently, in the pre-wet method, with the pre-wet chamber 260 positioned at the cleaning position by the first disposition step 103, the cleaning liquid valve 272 is opened and the surface to be processed WF-a of the substrate WF is applied through the nozzle 268. (washing step 104). Subsequently, the pre-wet method determines whether the cleaning process of the substrate WF is finished (step 105). The pre-wet method repeats the cleaning step 104 until the cleaning process of the substrate WF is finished.
- the pre-wet chamber 260 is arranged at a degassing position lower than the cleaning position (second arrangement step 106).
- the second placement step 106 includes the elastic member 265 attached to the lower end of the tubular member 264, the surface to be processed WF-a of the substrate WF, Place the pre-wet chamber 260 in a degassing position where the .
- the second placement step 106 is to create a gap 266 between the lower end of the cylindrical member 264 and the surface to be processed WF-a of the substrate WF. Place the pre-wet chamber 260 in the degassed position where the is formed.
- the open valve 292 provided in the open pipe 290 when the open valve 292 provided in the open pipe 290 is closed, the open valve 292 is opened (opening step 107).
- the bypass valve 296 provided in the bypass pipe 294 if the bypass valve 296 provided in the bypass pipe 294 is open, the bypass valve 296 is closed (bypass closing step 108).
- the air inside the pre-wet space 269 can be released to the atmosphere, and the air inside the pre-wet space 269 can be prevented from flowing into the buffer tank 286 .
- the order of the second placement step 106 to the bypass closing step 108 may be reversed, or may be performed simultaneously.
- the pre-wet method opens the de-airing liquid valve 242 to supply de-airing liquid to the pre-wet space 269, with the pre-wet chamber 260 positioned in the de-airing position by the second positioning step 106. (Deaeration step 109).
- the pre-wetting method is to transfer the de-gassed liquid supplied to the pre-wet space 269 to the pre-wet space 269 through the gap 266 . It is leaked to the outside (leakage step 110). Leakage step 110 is not performed for the pre-wet method using the pre-wet module 200 of the embodiment shown in FIG.
- the open valve 292 opened by the opening step 107 remains open until the pre-wet space 269 is filled with the deaerated liquid in the degassing step 109 .
- bypass valve 296 closed by bypass closing step 108 is closed until pre-wet space 269 is filled with degassing liquid in degassing step 109 . That is, the pre-wet method determines whether the pre-wet space 269 is filled with the deaerated liquid (step 111).
- Step 111 is performed using, for example, a liquid level sensor provided in pre-wet chamber 260 .
- the pre-wet method repeats degassing step 109 and leaking step 110 until pre-wet space 269 is filled with degassed liquid.
- the pre-wetting method when it is determined that the pre-wetting space 269 is filled with the degassed liquid (step 111, Yes), if the open valve 292 is open, the open valve 292 is closed (closing step 112 ) and, if the bypass valve 296 is closed, the bypass valve 296 is opened (bypass step 113).
- the degassed liquid supplied to the pre-wet space 269 can be reused by flowing to the buffer tank 286 via the bypass pipe 294 .
- the pre-wetting method determines whether or not the deaeration process of the substrate WF has ended (step 114).
- the pre-wet method returns to the degassing step 109 and repeats the process until the degassing of the substrate WF is completed.
- the discharge valve 282 is opened (step 115).
- the pre-wetting method unloads the substrate WF from the pre-wetting module 200 by the substrate station 250 and the transfer device 700 (step 116), and ends the pre-treatment.
- the present application provides, as an embodiment, a stage configured to hold the back surface of a substrate with the surface to be processed facing upward, a rotation mechanism configured to rotate the stage, and a a pre-wet chamber having a lid member having opposing surfaces; and a tubular member attached to an outer edge of the opposed surface of the lid member; and an elevating mechanism configured to elevate the pre-wet chamber.
- a deaerated liquid supply member configured to supply a deaerated liquid to a pre-wet space formed between the pre-wet chamber and the surface to be processed of the substrate; and attached to the facing surface of the lid member.
- a cleaning liquid supply member configured to supply cleaning liquid to the surface to be processed of the substrate through the nozzle.
- the cleaning liquid supply member is moved by the elevating mechanism to a cleaning position where the pre-wet chamber and the surface to be processed of the substrate or the substrate holding surface of the stage are not in contact with each other.
- a cleaning liquid is supplied to the surface to be processed of the substrate through the nozzle, and the degassing liquid supply member is moved to the degassing position lower than the cleaning position by the elevating mechanism.
- a pre-wet module configured to supply degassed liquid to the pre-wet space with the pre-wet chamber positioned by.
- the elevating mechanism when performing the degassing process, has a gap between the lower end of the tubular member and the surface to be processed of the substrate or the substrate holding surface of the stage.
- a pre-wet module is disclosed that is configured to position the pre-wet chamber in a degassing position in which a is formed.
- the pre-wet chamber includes an elastic member attached to the lower end of the cylindrical member, and the elevating mechanism, when performing the degassing process, performs the elastic member and the A pre-wet module is disclosed that is configured to place the pre-wet chamber in a degassing position in contact with a surface to be processed of a substrate or a substrate holding surface of the stage.
- a pre-wet module is disclosed, further comprising:
- the present application provides a discharge pipe for discharging the degassed liquid stored in the pre-wet space, a discharge valve configured to open and close the discharge pipe, the open pipe and the A pre-wet module is disclosed, further comprising a bypass line connecting with an exhaust line, and a bypass valve configured to open and close the bypass line.
- the present application provides, as an embodiment, an installation step of placing a substrate on a stage with the surface to be processed facing upward, a rotation step of rotating the stage, and a lid having a surface facing the surface to be processed of the substrate.
- a first locating step of locating a pre-wet chamber having a member and a tubular member attached to an outer edge of the facing surface of the lid member in a cleaning position is placed at the cleaning position, a cleaning step of supplying a cleaning liquid to the surface to be processed of the substrate through a nozzle attached to the facing surface of the lid member, and a degassing position lower than the cleaning position.
- a pre-wetting method comprising:
- the second arranging step includes a detachment apparatus in which a gap is formed between the lower end of the cylindrical member and the surface to be processed of the substrate or the substrate holding surface of the stage.
- a pre-wet method is disclosed that is configured to position the pre-wet chamber at an air position.
- a pre-wetting method further including a leaking step of leaking the degassed liquid supplied to the pre-wetting space to the outside of the pre-wetting space through the gap.
- the elastic member attached to the lower end of the cylindrical member is brought into contact with the surface to be processed of the substrate or the substrate holding surface of the stage.
- a pre-wet method is disclosed that is configured to position the pre-wet chamber in a degassing position.
- the present application provides, as one embodiment, an opening that communicates the pre-wet space with the outside of the pre-wet chamber via the lid member until the pre-wet space is filled with the degassed liquid in the degassing step.
- a pre-wetting method further comprising: an opening step of opening an opening valve provided in a pipe; and a closing step of closing the opening valve when the pre-wetting space is filled with the degassed liquid in the degassing step.
- the present application provides, as an embodiment, a discharge pipe for discharging the degassed liquid accumulated in the pre-wet space and the open pipe until the pre-wet space is filled with the degassed liquid in the degassing step. and a bypass step of opening the bypass valve when the pre-wet space is filled with the degassed liquid in the degassing step.
- a pre-wet method is disclosed.
- pre-wet module 202 cleaning liquid supply member 204 degassed liquid supply member 220 stage 220a substrate holding surface 224 rotating mechanism 230 lifting mechanism 240 degassed liquid pipe 242 degassed liquid valve 250 substrate station 250-1 first arm member 250-2 Second arm member 260 Pre-wet chamber 262 Lid member 262a Opposing surface 264 Cylindrical member 265 Elastic member 266 Gap 268 Nozzle 269 Pre-wet space 270 Cleaning liquid pipe 272 Cleaning liquid valve 280 Discharge pipe 282 Discharge valve 286 Buffer tank 290 Open pipe 292 Open Valve 294 Bypass piping 296 Bypass valve 1000 Plating equipment WF Substrate WF-a Surface to be processed
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Abstract
Description
図1は、本実施形態のめっき装置の全体構成を示す斜視図である。図2は、本実施形態のめっき装置の全体構成を示す平面図である。図1、2に示すように、めっき装置1000は、ロードポート100、搬送ロボット110、アライナ120、プリウェットモジュール200、プリソークモジュール300、めっきモジュール400、洗浄モジュール500、スピンリンスドライヤ600、搬送装置700、および、制御モジュール800を備える。
次に、プリウェットモジュール200の構成を説明する。本実施形態における2台のプリウェットモジュール200は同一の構成であるので、1台のプリウェットモジュール200のみを説明する。
202 洗浄液供給部材
204 脱気液供給部材
220 ステージ
220a 基板保持面
224 回転機構
230 昇降機構
240 脱気液配管
242 脱気液弁
250 基板ステーション
250-1 第1のアーム部材
250-2 第2のアーム部材
260 プリウェットチャンバ
262 蓋部材
262a 対向面
264 筒状部材
265 弾性部材
266 隙間
268 ノズル
269 プリウェット空間
270 洗浄液配管
272 洗浄液弁
280 排出配管
282 排出弁
286 バッファタンク
290 開放配管
292 開放弁
294 バイパス配管
296 バイパス弁
1000 めっき装置
WF 基板
WF-a 被処理面
Claims (12)
- 被処理面を上向きにした基板の裏面を保持するように構成されたステージと、
前記ステージを回転させるように構成された回転機構と、
前記基板の被処理面に対向する対向面を有する蓋部材、および前記蓋部材の前記対向面の外縁部に取り付けられた筒状部材、を有するプリウェットチャンバと、
前記プリウェットチャンバを昇降させるように構成された昇降機構と、
前記プリウェットチャンバと前記基板の被処理面との間に形成されたプリウェット空間に脱気液を供給するように構成された脱気液供給部材と、
前記蓋部材の前記対向面に取り付けられたノズルと、
前記ノズルを介して前記基板の被処理面に洗浄液を供給するように構成された洗浄液供給部材と、
を備える、
プリウェットモジュール。 - 前記洗浄液供給部材は、前記プリウェットチャンバと前記基板の被処理面または前記ステージの基板保持面とが非接触となる洗浄位置に前記昇降機構によって前記プリウェットチャンバが配置された状態で、前記ノズルを介して前記基板の被処理面に洗浄液を供給するように構成され、
前記脱気液供給部材は、前記洗浄位置よりも低い脱気位置に前記昇降機構によって前記プリウェットチャンバが配置された状態で、前記プリウェット空間に脱気液を供給するように構成される、
請求項1に記載のプリウェットモジュール。 - 前記昇降機構は、脱気処理を行うときに、前記筒状部材の下端と、前記基板の被処理面または前記ステージの基板保持面と、の間に隙間が形成された脱気位置に前記プリウェットチャンバを配置するように構成される、
請求項2に記載のプリウェットモジュール。 - 前記プリウェットチャンバは、前記筒状部材の下端に取り付けられた弾性部材を含み、
前記昇降機構は、脱気処理を行うときに、前記弾性部材と、前記基板の被処理面または前記ステージの基板保持面と、が接触する脱気位置に前記プリウェットチャンバを配置するように構成される、
請求項2に記載のプリウェットモジュール。 - 前記蓋部材を介して前記プリウェット空間と前記プリウェットチャンバの外部とを連通する開放配管と、
前記開放配管を開閉するように構成された開放弁と、
をさらに備える、
請求項1から4のいずれか一項に記載のプリウェットモジュール。 - 前記プリウェット空間に貯められた脱気液を排出するための排出配管と、
前記排出配管を開閉するように構成された排出弁と、
前記開放配管と前記排出配管とを接続するバイパス配管と、
前記バイパス配管を開閉するように構成されたバイパス弁と、
をさらに備える、
請求項5に記載のプリウェットモジュール。 - 被処理面を上向きにして基板をステージに設置する設置ステップと、
前記ステージを回転させる回転ステップと、
前記基板の被処理面に対向する対向面を有する蓋部材、および前記蓋部材の前記対向面の外縁部に取り付けられた筒状部材、を有するプリウェットチャンバを洗浄位置に配置する第1の配置ステップと、
前記第1の配置ステップによって前記プリウェットチャンバが前記洗浄位置に配置された状態で、前記蓋部材の前記対向面に取り付けられたノズルを介して前記基板の被処理面に洗浄液を供給する洗浄ステップと、
前記洗浄位置よりも低い脱気位置に前記プリウェットチャンバを配置する第2の配置ステップと、
前記第2の配置ステップによって前記プリウェットチャンバが前記脱気位置に配置された状態で前記プリウェット空間に脱気液を供給する脱気ステップと、
を備えるプリウェット方法。 - 前記第2の配置ステップは、前記筒状部材の下端と、前記基板の被処理面または前記ステージの基板保持面と、の間に隙間が形成された脱気位置に前記プリウェットチャンバを配置するように構成される、
請求項7に記載のプリウェット方法。 - 前記プリウェット空間に供給した脱気液を、前記隙間を介して前記プリウェット空間の外部に漏出させる漏出ステップをさらに含む、
請求項8に記載のプリウェット方法。 - 前記第2の配置ステップは、前記筒状部材の下端に取り付けられた弾性部材と、前記基板の被処理面または前記ステージの基板保持面と、が接触する脱気位置に前記プリウェットチャンバを配置するように構成される、
請求項7に記載のプリウェット方法。 - 前記脱気ステップにおいて前記プリウェット空間が脱気液で満たされるまで、前記蓋部材を介して前記プリウェット空間と前記プリウェットチャンバの外部とを連通する開放配管に設けられた開放弁を開く開放ステップと、
前記脱気ステップにおいて前記プリウェット空間が脱気液で満たされたら、前記開放弁を閉じる閉止ステップと、
をさらに含む、
請求項7から10のいずれか一項に記載のプリウェット方法。 - 前記脱気ステップにおいて前記プリウェット空間が脱気液で満たされるまで、前記プリウェット空間に貯められた脱気液を排出するための排出配管と前記開放配管とを接続するバイパス配管に設けられたバイパス弁を閉じるバイパス閉止ステップと、
前記脱気ステップにおいて前記プリウェット空間が脱気液で満たされたら、前記バイパス弁を開くバイパスステップと、
をさらに含む、
請求項11に記載のプリウェット方法。
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