WO2021111927A1 - 基板液処理装置 - Google Patents
基板液処理装置 Download PDFInfo
- Publication number
- WO2021111927A1 WO2021111927A1 PCT/JP2020/043677 JP2020043677W WO2021111927A1 WO 2021111927 A1 WO2021111927 A1 WO 2021111927A1 JP 2020043677 W JP2020043677 W JP 2020043677W WO 2021111927 A1 WO2021111927 A1 WO 2021111927A1
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- WIPO (PCT)
- Prior art keywords
- nozzle
- liquid
- unit
- nozzles
- substrate
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 234
- 239000000758 substrate Substances 0.000 title claims abstract description 60
- 238000012545 processing Methods 0.000 claims description 110
- 238000004140 cleaning Methods 0.000 claims description 72
- 230000007246 mechanism Effects 0.000 claims description 72
- 208000028659 discharge Diseases 0.000 claims description 41
- 239000002253 acid Substances 0.000 claims description 33
- 238000007599 discharging Methods 0.000 claims description 7
- 235000012431 wafers Nutrition 0.000 description 48
- 238000010586 diagram Methods 0.000 description 33
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 24
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
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- 238000011835 investigation Methods 0.000 description 3
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
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- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 101100043261 Caenorhabditis elegans spop-1 gene Proteins 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/08—Spreading liquid or other fluent material by manipulating the work, e.g. tilting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
Definitions
- the disclosed embodiment relates to a substrate liquid treatment apparatus.
- a nozzle not used for liquid treatment is made to stand by above a liquid receiving tank installed on the outside of the substrate, and the nozzle is transferred to the liquid receiving tank.
- a technique for discharging a treatment liquid is known (see Patent Document 1).
- the present disclosure provides a technique capable of easily controlling the atmosphere in the accommodating portion even if the components of the treatment liquid leak from the receiving tank.
- the substrate liquid treatment apparatus includes a cup, a plurality of nozzle circulation systems, a second nozzle, and an accommodating portion.
- the cup surrounds the periphery of the substrate.
- Each of the plurality of nozzle circulation systems is arranged outside the first nozzle and the cup, and receives the treatment liquid discharged from the first nozzle and the treatment liquid received in the liquid receiving tank as the first nozzle. Includes a circulation section that returns to.
- the second nozzle is a nozzle that does not constitute a nozzle circulation system.
- the accommodating portion accommodates a cup, a plurality of first nozzles of the plurality of nozzle circulation systems, and a plurality of liquid receiving tanks and a second nozzle. Further, the second nozzle is arranged between the first side wall of the accommodating portion and the cup, and the plurality of first nozzles are arranged between the second side wall different from the first side wall of the accommodating portion and the cup. Will be done.
- the atmosphere in the accommodating portion can be easily controlled.
- FIG. 1 is a diagram showing a configuration of a substrate processing system according to an embodiment.
- FIG. 2 is a diagram showing a configuration of a processing unit according to the embodiment.
- FIG. 3 is a diagram showing a configuration of a nozzle circulation system according to an embodiment.
- FIG. 4 is a diagram for explaining the flow of the processing liquid in the nozzle circulation system according to the embodiment.
- FIG. 5 is a diagram for explaining the flow of the processing liquid in the nozzle circulation system according to the embodiment.
- FIG. 6 is a graph showing the results of investigation of temperature interference between two adjacent first nozzles.
- FIG. 7 is a graph showing the results of investigation of temperature interference between two adjacent first nozzles.
- FIG. 8 is a diagram showing an exhaust configuration of the nozzle bus according to the embodiment.
- FIG. 9 is a diagram showing a configuration of a cleaning chamber included in the exhaust duct according to the embodiment.
- FIG. 10 is a diagram showing a modified example of the exhaust duct according to the embodiment.
- FIG. 11 is a diagram showing a first modification of the nozzle moving mechanism according to the embodiment.
- FIG. 12 is a diagram showing another arrangement example of the plurality of first nozzles and the plurality of nozzle baths in the first modification.
- FIG. 13 is a diagram showing a second modification of the nozzle moving mechanism according to the embodiment.
- FIG. 14 is a diagram showing a third modification of the nozzle moving mechanism according to the embodiment.
- FIG. 15 is a diagram showing a third modification of the nozzle moving mechanism according to the embodiment.
- FIG. 16 is a diagram showing a third modification of the nozzle moving mechanism according to the embodiment.
- FIG. 17 is a diagram showing a third modification of the nozzle moving mechanism according to the embodiment.
- FIG. 18 is a diagram showing a configuration example of the nozzle bus in the third modification.
- FIG. 19 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- FIG. 20 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- FIG. 21 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- FIG. 22 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- FIG. 23 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- the substrate liquid treatment apparatus there is known a process in which a standby nozzle that is not used for liquid treatment is arranged above a nozzle bath installed on the outside of the substrate, and the treatment liquid is discharged from the nozzle to the nozzle bath.
- This treatment is performed to improve the stability of the liquid treatment by, for example, before or periodically performing the liquid treatment, by discarding the old treatment liquid remaining in the nozzle into the nozzle bath.
- the treatment liquid is constantly discharged from the nozzle to the nozzle bath, and the nozzle circulation processing is performed in which the treatment liquid discharged to the nozzle bath is circulated and returned to the nozzle.
- the nozzle circulation process is performed to stabilize the temperature inside the nozzle (particularly the tip portion) by constantly circulating a temperature-controlled treatment liquid inside the nozzle.
- the nozzle circulation processing for example, when a plurality of wafers are continuously processed, it is possible to prevent the etching amount of the first wafer from being lower than that of the other wafers. That is, according to the nozzle circulation treatment, the uniformity of the liquid treatment among a plurality of wafers can be improved.
- the components contained in the treatment liquid may leak from the nozzle bath into the chamber and affect the atmosphere in the chamber.
- the components of the treatment liquid leaking from the nozzle bath may contaminate the wafer in the chamber or deteriorate the equipment in the chamber, for example.
- the nozzle circulation process constantly discharges the treatment liquid from the nozzle to the nozzle bath, so the effect of leakage of the treatment liquid component from the nozzle bath is large. Therefore, in a substrate liquid processing apparatus that performs nozzle circulation processing, a technique is expected that can easily control the atmosphere in the chamber even if the components of the processing liquid leak from the nozzle bath.
- FIG. 1 is a diagram showing a configuration of a substrate processing system 1 according to an embodiment.
- the substrate processing system 1 includes a loading / unloading station 2 and a processing station 3.
- the loading / unloading station 2 and the processing station 3 are provided adjacent to each other.
- the loading / unloading station 2 includes a carrier mounting section 11 and a transport section 12.
- a plurality of substrates, in the embodiment, a plurality of carriers C for accommodating a semiconductor wafer W (hereinafter, referred to as a wafer W) in a horizontal state are mounted on the carrier mounting portion 11.
- the transport section 12 is provided adjacent to the carrier mounting section 11, and includes a substrate transport device 13 and a delivery section 14 inside.
- the substrate transfer device 13 includes a wafer holding mechanism for holding the wafer W. Further, the substrate transfer device 13 can move in the horizontal direction and the vertical direction and can rotate around the vertical axis, and transfers the wafer W between the carrier C and the delivery portion 14 by using the wafer holding mechanism. Do.
- the processing station 3 is provided adjacent to the transport unit 12.
- the processing station 3 includes a transport unit 15 and a plurality of processing units 16.
- the plurality of processing units 16 are provided side by side on both sides of the transport unit 15.
- the transport unit 15 includes a substrate transport device 17 inside.
- the substrate transfer device 17 includes a wafer holding mechanism for holding the wafer W. Further, the substrate transfer device 17 can move in the horizontal direction and the vertical direction and can rotate around the vertical axis, and transfers the wafer W between the delivery unit 14 and the processing unit 16 by using the wafer holding mechanism. I do.
- the processing unit 16 performs predetermined substrate processing on the wafer W transported by the substrate transport device 17.
- the substrate processing system 1 includes a control device 4.
- the control device 4 is, for example, a computer, and includes a control unit 18 and a storage unit 19.
- the storage unit 19 stores programs that control various processes executed in the substrate processing system 1.
- the control unit 18 controls the operation of the substrate processing system 1 by reading and executing the program stored in the storage unit 19.
- Such a program may be recorded on a storage medium readable by a computer, and may be installed from the storage medium in the storage unit 19 of the control device 4.
- Examples of storage media that can be read by a computer include a hard disk (HD), a flexible disk (FD), a compact disk (CD), a magnet optical disk (MO), and a memory card.
- the substrate transfer device 13 of the loading / unloading station 2 takes out the wafer W from the carrier C mounted on the carrier mounting portion 11, and receives the taken out wafer W. Placed on Watanabe 14. The wafer W placed on the delivery section 14 is taken out from the delivery section 14 by the substrate transfer device 17 of the processing station 3 and carried into the processing unit 16.
- the wafer W carried into the processing unit 16 is processed by the processing unit 16, then carried out from the processing unit 16 by the substrate transfer device 17, and placed on the delivery unit 14. Then, the processed wafer W mounted on the delivery section 14 is returned to the carrier C of the carrier mounting section 11 by the substrate transfer device 13.
- FIG. 2 is a diagram showing the configuration of the processing unit 16 according to the embodiment.
- the processing unit 16 is an example of a substrate liquid processing apparatus.
- the processing unit 16 includes a substrate holding mechanism 20, a cup 30, a plurality of nozzle circulation systems 40, a nozzle moving mechanism 50, a second processing liquid supply unit 60, and a gas supply unit 80. , With a chamber 70.
- the substrate holding mechanism 20 includes a holding portion 21 that holds the wafer W horizontally.
- the holding portion 21 is, for example, a vacuum chuck that sucks and holds the back surface of the wafer W. Further, the holding portion 21 may be a mechanical chuck that grips the peripheral edge portion of the wafer W.
- the holding portion 21 is connected to a strut portion (not shown).
- the strut portion is a member extending in the vertical direction, and horizontally supports the holding portion 21 at the tip portion. Further, the strut portion is connected to a drive portion (not shown) at the base end portion. The drive unit rotates the strut portion around a vertical axis.
- the substrate holding mechanism 20 rotates the holding portion 21 supported by the strut portion by rotating the strut portion using the drive unit, thereby rotating the wafer W held by the holding portion 21.
- the cup 30 is arranged so as to surround the peripheral edge of the wafer W held by the holding portion 21, and collects the processing liquid scattered from the wafer W by the rotation of the holding portion 21.
- the bottom of the cup 30 is provided with a discharge port for discharging the treatment liquid collected by the cup 30. Further, at the bottom of the cup 30, an exhaust port for discharging the gas supplied from the FFU (Fan Filter Unit), which will be described later, to the outside of the processing unit 16 is formed.
- FFU Full Filter Unit
- the nozzle circulation system 40 is arranged outside the first nozzle 41 and the cup 30, and receives the treatment liquid discharged from the first nozzle 41 in the nozzle bath 42 and the treatment liquid received in the nozzle bath 42 into the first nozzle 41. Includes a returning circulation unit 43.
- Each nozzle circulation system 40 circulates different treatment liquids.
- two of the three nozzle circulation systems 40 shown in FIG. 2 circulate an acid-based treatment liquid, and the remaining one circulates an alkaline treatment liquid.
- the acid-based treatment liquid for example, BHF (mixed liquid of hydrofluoric acid and ammonium fluoride solution), DHF (dilute hydrofluoric acid), H 2 SO 4 (sulfuric acid) and the like are used.
- the alkaline treatment liquid for example, SC1 (mixed liquid of ammonia, hydrogen peroxide and water), diluted ammonia water and the like are used.
- the first nozzle 41 has a treatment liquid discharge port 411 at the lower part, and discharges the treatment liquid vertically downward from the discharge port 411.
- the nozzle bath 42 is arranged in the standby area of the first nozzle 41 set outside the cup 30. Specifically, the nozzle bath 42 is arranged directly below the discharge port 411 of the first nozzle 41 arranged in the standby region, and receives the processing liquid discharged from the first nozzle 41.
- the plurality of nozzle buses 42 are integrally configured as the bus unit 420, but the present invention is not limited to this, and the plurality of nozzle buses 42 may be separate bodies.
- the circulation unit 43 circulates the processing liquid discharged from the nozzle bath 42, which includes a tank, a pump, and the like, and returns the treatment liquid to the first nozzle 41 again.
- FIG. 3 is a diagram showing a configuration of the nozzle circulation system 40 according to the embodiment.
- the nozzle circulation system 40 includes a first nozzle 41, a nozzle bus 42, a circulation unit 43, a supply path 44, and a discharge path 45. Further, the circulation unit 43 includes a treatment liquid supply unit 101, a tank 102, and a circulation path 103. The operation of the nozzle circulation system 40 is controlled by the control unit 18 (see FIG. 1).
- the processing liquid supply unit 101 includes a processing liquid supply source 101a, a valve 101b, and a flow rate regulator 101c.
- the processing liquid supply source 101a is connected to the tank 102 via a valve 101b and a flow rate regulator 101c.
- the treatment liquid supply unit 101 supplies the treatment liquid from the treatment liquid supply source 101a to the tank 102.
- the tank 102 stores the treatment liquid.
- the tank 102 is connected to the drain portion DR, and the treatment liquid stored in the tank 102 can be discharged to the drain portion DR.
- the circulation path 103 is a circulation path that exits the tank 102 and returns to the tank 102.
- the circulation path 103 is provided with a pump 103a, a filter 103b, a temperature adjusting unit 103c, and a temperature detecting unit 103d in order from the upstream side with the tank 102 as a reference (uppermost flow).
- the pump 103a forms a circulating flow of the processing liquid that exits the tank 102, passes through the circulation path 103, and returns to the tank 102.
- the filter 103b removes contaminants such as particles contained in the treatment liquid circulating in the circulation path 103.
- the temperature adjusting unit 103c is, for example, a heating unit such as a heater or a cooling unit such as a cooling coil, and adjusts the temperature of the processing liquid circulating in the circulation path 103.
- the temperature detection unit 103d is, for example, a thermocouple and detects the temperature of the processing liquid circulating in the circulation path 103.
- the control unit 18 can control the temperature of the processing liquid circulating in the circulation path 103 by using the temperature adjustment unit 103c and the temperature detection unit 103d.
- a connection area 104 is set in the circulation path 103 on the downstream side of the temperature detection unit 103d with the tank 102 as a reference (upstream).
- One or more supply paths 44 are connected to the connection area 104.
- Each supply path 44 is connected to the first nozzle 41 of the processing unit 16 and supplies the processing liquid flowing through the circulation path 103 to the first nozzle 41.
- each supply path 44 is provided with a flow rate regulator, a regulator, and the like.
- the processing liquid stored in the tank 102 is supplied to the first nozzle 41 through the circulation path 103 and the supply path 44, and is discharged from the first nozzle 41 to the nozzle bath 42.
- the nozzle bus 42 of each processing unit 16 is connected to the discharge path 45.
- the discharge passage 45 has an individual discharge passage 45a connected to each nozzle bus 42 and a merged discharge passage 45b at which a plurality of individual discharge passages 45a merge.
- the merging discharge passage 45b is connected to the tank 102, and the treatment liquid discharged from the nozzle bath 42 via the individual discharge passage 45a is returned to the tank 102.
- a valve 45c is provided in each individual discharge path 45a.
- the merging discharge passage 45b is connected to the drain portion DR, and the treatment liquid passing through the merging discharge passage 45b can be discharged to the drain portion DR.
- FIGS. 4 and 5 are diagrams for explaining the flow of the processing liquid in the nozzle circulation system 40 according to the embodiment.
- the processing unit 16 positions the first nozzle 41 above the nozzle bath 42. Subsequently, the processing unit 16 opens the valve 45c provided in the individual discharge path 45a.
- the processing unit 16 opens the valve 44a provided in the supply path 44.
- the treatment liquid is sequentially passed through the first nozzle 41, the nozzle bath 42, the discharge path 45, the circulation section 43 (tank 102 and circulation path 103), and the supply path 44. Can be circulated.
- the processing unit 16 moves the first nozzle 41 above the wafer W. At that time, the processing unit 16 closes the valve 45c of the discharge path 45. As a result, it is possible to prevent the atmosphere in the discharge path 45 from being mixed with the atmosphere around the wafer W.
- the processing unit 16 opens the valve 44a.
- the processing liquid is discharged to the wafer W via the supply path 44 and the first nozzle 41.
- the nozzle circulation system 40 stabilizes the temperature of the first nozzle 41 by continuing to dummy-dispens the treatment liquid adjusted to a desired temperature from the first nozzle 41 while the first nozzle 41 is on standby. Can be made to. That is, it is possible to prevent the temperature of the first nozzle 41 from deviating from the temperature of the processing liquid. As a result, when the liquid treatment is performed using the first nozzle 41, the treatment liquid having a desired temperature can be discharged to the wafer W from the start of discharge. Therefore, stable liquid treatment with little variation due to temperature change can be realized.
- the nozzle circulation system 40 when the first nozzle 41 performs the dummy dispense treatment in the nozzle bath 42, all the dummy dispensed treatment liquid can be collected in the tank 102. Therefore, the consumption of the treatment liquid can be reduced.
- the nozzle moving mechanism 50 is provided separately from the plurality of first nozzles 41 arranged in the chamber 70, and holds the first nozzle 41 used for liquid treatment among the plurality of first nozzles 41 to hold the wafer W. Move above.
- the nozzle moving mechanism 50 is provided at the arm 51, the base end portion of the arm 51, the swivel elevating mechanism 52 for swiveling and raising / lowering the arm 51, and the first nozzle provided at the tip end portion of the arm 51.
- a nozzle holding portion 53 for holding 41 is provided.
- the nozzle moving mechanism 50 swivels the arm 51 using the swivel elevating mechanism 52 to arrange the nozzle holding portion 53 above the first nozzle 41 to be held.
- the plurality of first nozzles 41 are arranged on the swirling trajectory of the nozzle holding portion 53, and the nozzle moving mechanism 50 swivels the arm 51 to move the nozzle holding portion 53 above the arbitrary first nozzle 41. Can be placed.
- the nozzle moving mechanism 50 lowers the arm 51 by using the swivel elevating mechanism 52, and holds the first nozzle 41 by using the nozzle holding portion 53.
- Any conventional technique may be used as the configuration of the nozzle holding portion 53.
- the nozzle holding portion 53 may hold the first nozzle 41 by engaging with the first nozzle 41, as in the nozzle holding portion described in Japanese Patent Application Laid-Open No. 2012-54406. ..
- the number of the first nozzles 41 held by the nozzle holding portion 53 may be plural.
- the nozzle moving mechanism 50 raises and swivels the arm 51 using the swivel elevating mechanism 52, and arranges the first nozzle 41 held by the nozzle holding portion 53 at the processing position above the wafer W.
- the processing unit 16 can move only the first nozzle 41 used for liquid processing among the plurality of first nozzles 41 to the processing position above the wafer W by using the nozzle moving mechanism 50. Therefore, according to the processing unit 16, the nozzle circulation processing for the remaining first nozzle 41 can be continued during the liquid processing using the first nozzle 41.
- the second treatment liquid supply unit 60 includes a plurality of (here, two) second nozzles 61 and a swivel elevating mechanism 62 that integrally swivels and elevates the plurality of second nozzles 61.
- the second nozzle 61 has an extending portion 61a extending in the horizontal direction (Y-axis direction in FIG. 2) and a discharge port 61b located at the tip of the extending portion 61a and opening vertically downward.
- Each second nozzle 61 is connected to a different processing liquid supply source.
- a DIW source that supplies DIW (deionized water)
- IPA isopropyl alcohol
- the swivel elevating mechanism 62 supports the base end portions of the extending portions 61a of the plurality of second nozzles 61, and the plurality of second nozzles 61 are located between the processing position above the wafer W and the standby position outside the wafer W. Is moved integrally.
- the gas supply unit 80 dries the wafer W by supplying gas to the wafer W after the liquid treatment.
- the gas supply unit 80 includes a third nozzle 81 and a swivel elevating mechanism 82 that swivels and elevates the third nozzle 81.
- the third nozzle 81 has an extending portion 81a extending in the horizontal direction (X-axis direction in FIG. 2) and a discharge port 81b located at the tip of the extending portion 81a.
- the third nozzle 81 is, for example, connecting a gas such as N 2 gas or dry air to a gas supply source for supplying.
- the swivel elevating mechanism 82 supports the base end portion of the extending portion 81a of the third nozzle 81, and moves the third nozzle 81 between the processing position above the wafer W and the standby position outside the wafer W.
- the gas supply unit 80 may include a plurality of third nozzles 81.
- the gas supply unit 80 may include a third nozzle 81 that discharges gas perpendicularly to the wafer W, and a third nozzle 81 that discharges gas obliquely to the wafer W.
- the chamber 70 is, for example, a rectangular housing in a plan view, and has a plurality of (here, four) side walls 71a to 71d. Inside the chamber 70, a substrate holding mechanism 20, a cup 30, a plurality of first nozzles 41 included in a plurality of nozzle circulation systems 40, a plurality of nozzle baths 42, a nozzle moving mechanism 50, a second processing liquid supply unit 60, and a gas supply The unit 80 is housed.
- a plurality of exhaust ports 72 are provided on the bottom surface of the chamber 70.
- the plurality of exhaust ports 72 are arranged, for example, in the vicinity of the side walls 71a to 71d of the chamber 70.
- the plurality of exhaust ports 72 are connected to the exhaust pipe 72a, and the atmosphere in the chamber 70 is discharged to the outside of the chamber 70 through the plurality of exhaust ports 72 or the exhaust pipe 72a.
- an FFU (not shown) is provided on the ceiling of the chamber 70.
- the FFU forms a downflow in the chamber 70.
- the atmosphere in the chamber is maintained in an inert gas atmosphere such as nitrogen gas or a clean gas atmosphere such as clean dry air.
- the chamber 70 is provided with a carry-in outlet for loading and unloading the wafer W, a shutter for opening and closing the carry-in outlet, and the like.
- the plurality of first nozzles 41 constituting each nozzle circulation system 40 are grouped in one place in the chamber 70, and a plurality of second nozzles not constituting the nozzle circulation system 40. Isolated from 61.
- the plurality of first nozzles 41 are collectively arranged with respect to the cup 30 on a side different from the side on which the plurality of second nozzles 61 are arranged. That is, when the chamber 70 is viewed in a plan view, the plurality of second nozzles 61 are arranged between the side wall 71b on the X-axis positive direction side of the chamber 70 and the cup 30, whereas the plurality of first nozzles 41 Is arranged between the side wall 71a on the negative side of the X-axis of the chamber 70 and the cup 30.
- the plurality of first nozzles 41 constituting each nozzle circulation system 40 are centrally arranged in the chamber 70.
- the plurality of nozzle baths 42 corresponding to the plurality of first nozzles 41 are centrally arranged in one place in the chamber 70. Therefore, even if the components of the treatment liquid leak from the nozzle bath 42, the atmosphere inside the chamber 70 can be easily controlled because the leaked parts are collected in one place.
- the processing liquids having different temperatures will be dummy-dispensed from the plurality of centrally arranged first nozzles 41.
- the inventor of the present application has confirmed that temperature interference between the first nozzles 41 does not occur even in such a case.
- 6 and 7 are graphs showing the results of investigation of temperature interference between two adjacent first nozzles 41.
- the inventor of the present application has a first nozzle 41 (hereinafter referred to as "nozzle A”) for discharging IPA set at 70 ° C. and a first nozzle 41 (hereinafter referred to as "nozzle A") for discharging DHF set at 25 ° C. Nozzle B) and) were placed close to each other. Then, the inventor of the present application discharged IPA from nozzle A for 120 seconds with the discharge of DHF from one nozzle B stopped (Case 1). Further, the inventor of the present application discharged DHF from nozzle B for 120 seconds, and at the same time, discharged IPA from nozzle A for 120 seconds (Case 2).
- the inventor of the present application measured the temperature of the nozzle B in each of the cases 1 and 2 using a thermocouple installed inside the nozzle B.
- the measurement result of case 1 is shown in FIG. 6, and the measurement result of case 2 is shown in FIG. 7.
- 6 and 7 show graphs in which the elapsed time from the start of IPA discharge is on the horizontal axis and the temperature of nozzle B (the temperature of DHF in nozzle B) is on the vertical axis.
- the deviation from the set temperature (25 ° C.) of the nozzle B at the end of the discharge of IPA is larger in the case 1 shown in FIG. 6, and in the case 2 shown in FIG. Almost no temperature change was observed.
- FIG. 8 is a diagram showing an exhaust configuration of the nozzle bus 42 according to the embodiment.
- the processing unit 16 includes an exhaust duct 200 common to a plurality of nozzle buses 42.
- the plurality of first nozzles 41 are collectively arranged in one place, the plurality of nozzle baths 42 are also arranged in one place. Therefore, it is easy to provide the exhaust duct 200 common to the plurality of nozzle buses 42.
- the exhaust duct 200 includes a plurality of exhaust intake ports 201, a cleaning chamber 202 communicating with the plurality of exhaust intake ports 201, a gas-liquid separation unit 203 provided on the downstream side of the cleaning chamber 202, and a cleaning chamber 202. It is provided with a connection flow path 204 for connecting the gas-liquid separation unit 203 and the gas-liquid separation unit 203.
- the plurality of exhaust intake ports 201 are provided on the floor surface 73 of the chamber 70 around the bus unit 420. For example, a part of the plurality of exhaust intake ports 201 is provided between the side wall 71a (see FIG. 2) of the chamber 70 and the bus unit 420. Further, another part of the plurality of exhaust intake ports 201 is provided between the cup 30 and the bus unit 420.
- the components of the processing liquid leaked from the plurality of nozzle baths 42 can be collectively discharged from the plurality of exhaust intake ports 201 formed around the bus unit 420. Therefore, the configuration of the exhaust path can be simplified as compared with the case where a plurality of nozzle buses 42 are arranged in a dispersed manner, for example.
- the washing room 202 is arranged at the lower part (under the floor) of the bath unit 420, for example. In the cleaning chamber 202, a process of removing the components of the treatment liquid from the exhaust gas taken in from the plurality of exhaust intake ports 201 is performed.
- FIG. 9 is a diagram showing a configuration of a cleaning chamber 202 included in the exhaust duct 200 according to the embodiment.
- a cleaning liquid supply unit 210 for supplying the cleaning liquid is arranged inside the cleaning chamber 202.
- the cleaning liquid supply unit 210 includes a first discharge unit 211 and a second discharge unit 212.
- the first discharge unit 211 is provided on the ceiling of the cleaning chamber 202, for example, and discharges the cleaning liquid to the space inside the cleaning chamber 202 in a shower shape.
- the second discharge unit 212 discharges the cleaning liquid to the wall surface in the cleaning chamber 202 in a shower shape, for example.
- a plurality of second discharge units 212 may be provided in the cleaning chamber 202. In this case, the plurality of second discharge units 212 discharge the cleaning liquid to different wall surfaces in the cleaning chamber 202.
- the first discharge unit 211 includes a cleaning liquid supply source 211a, a valve 211b, and a flow rate regulator 211c.
- the second discharge unit 212 includes a cleaning liquid supply source 212a, a valve 212b, and a flow rate regulator 212c. That is, the cleaning liquid supply unit 210 can independently discharge the cleaning liquid from the first discharge unit 211 and the cleaning liquid from the second discharge unit 212.
- the cleaning liquid is, for example, DIW.
- the cleaning liquid supply unit 210 is controlled by the control unit 18. By controlling the cleaning liquid supply unit 210, the control unit 18 discharges the cleaning liquid from the first discharge unit 211 at the first flow rate and the first processing time.
- control unit 18 constantly discharges the cleaning liquid from the first discharge unit 211 while the processing unit 16 is in operation.
- the cleaning liquid is supplied from the first discharge unit 211 to the space inside the cleaning chamber 202, the components (acid component and alkaline component) of the treatment liquid contained in the exhaust gas flowing through the cleaning chamber 202 dissolve in the cleaning liquid.
- the components of the treatment liquid can be removed from the exhaust gas flowing through the cleaning chamber 202.
- control unit 18 controls the cleaning liquid supply unit 210 to discharge the cleaning liquid from the second discharge unit 212 in a second processing time that is larger than the first flow rate and shorter than the first processing time. ..
- control unit 18 discharges the cleaning liquid from the second discharge unit 212 at regular intervals.
- the second discharge unit 212 discharges the cleaning liquid to the wall surface in the cleaning chamber 202 at a flow rate higher than that of the first discharge unit 211, in other words, at a pressure higher than that of the first discharge unit 211.
- foreign substances such as crystals adhering to the cleaning chamber 202 can be washed away with the cleaning liquid.
- the exhaust gas taken into the cleaning chamber 202 from the plurality of exhaust intake ports 201 and the cleaning liquid supplied into the cleaning chamber 202 by the cleaning liquid supply unit 210 are supplied to the gas-liquid separation unit 203 via the connection flow path 204.
- the gas-liquid separation unit 203 has, for example, an exhaust pipe 203a extending upward and a drainage pipe 203b located below the exhaust pipe 203a. Of the exhaust gas and the cleaning liquid that have reached the gas-liquid separation unit 203, the exhaust gas is discharged to the outside through the exhaust pipe 203a, and the cleaning liquid is discharged to the outside through the drainage pipe 203b.
- the exhaust pipe 203a joins the exhaust pipe 72a connected to a plurality of exhaust ports 72 provided on the floor surface of the chamber 70.
- the processing unit 16 includes an exhaust duct 200 for intensively exhausting the atmosphere around the bus unit 420, in addition to the exhaust port 72 provided on the floor surface 73 of the chamber 70. .. Therefore, according to the processing unit 16 according to the embodiment, even when the components of the treatment liquid leak from the plurality of nozzle baths 42, the exhaust gas containing the components of the treatment liquid can be efficiently discharged from the chamber 70. it can.
- FIG. 10 is a diagram showing a modified example of the exhaust duct according to the embodiment.
- the treatment unit 16A includes an acid-based bath unit 420A1 having a nozzle bath 42A1 for receiving an acid-based treatment liquid and an alkaline bath unit 420A2 having a nozzle bath 42A2 for receiving an alkaline-based treatment liquid.
- the acid-based bus unit 420A1 and the alkaline-based bus unit 420A2 are separate bodies, and are arranged next to each other at a predetermined interval on the turning trajectory of the nozzle holding portion 53.
- the processing unit 16A includes an acid-based exhaust duct 200A1 and an alkaline-based exhaust duct A2.
- the acid-based exhaust duct 200A1 has a plurality of exhaust intake ports 201A1 around the acid-based bus unit 420A1.
- the alkaline exhaust duct 200A2 has a plurality of exhaust intake ports 201A2 around the alkaline bus unit 420A2.
- the acid-based exhaust duct 200A1 is arranged in the lower part (under the floor) of the acid-based bus unit 420A1 and has a cleaning chamber 202A1 communicating with a plurality of exhaust intake ports 201A1.
- the cleaning chamber 202A1 has a cleaning liquid supply unit inside, and is connected to a gas-liquid separation unit (not shown) via a connection path 204A1.
- the alkaline exhaust duct 200A2 is arranged in the lower part (under the floor) of the alkaline bus unit 420A2 and has a cleaning chamber 202A2 communicating with a plurality of exhaust intake ports 201A2.
- the cleaning chamber 202A2 has a cleaning liquid supply unit inside, and is connected to a gas-liquid separation unit (not shown) via a connection path 204A2.
- the exhaust paths of the plurality of nozzle buses 42A1 and 42A2 may be divided into an acid-based exhaust path (acid-based exhaust duct 200A1) and an alkaline-based exhaust path (alkaline-based exhaust duct 200A2).
- acid-based exhaust duct 200A1 acid-based exhaust duct 200A1
- alkaline-based exhaust duct 200A2 alkaline-based exhaust duct 200A2
- FIG. 11 is a diagram showing a first modification of the nozzle moving mechanism according to the embodiment.
- FIG. 12 is a diagram showing another arrangement example of the plurality of first nozzles 41 and the plurality of nozzle baths 42 in the first modification.
- the nozzle moving mechanism 50B includes an arm 51B, a swivel elevating mechanism 52, and a nozzle holding portion 53.
- the arm 51B includes a first arm 51Ba, a second arm 51Bb, and a joint portion 51Bc. Both the first arm 51Ba and the second arm 51Bb extend in the horizontal direction.
- the base end portion of the first arm 51Ba is connected to the swivel elevating mechanism 52, and the nozzle holding portion 53 is provided at the tip end portion of the second arm 51Bb.
- the joint portion 51Bc is arranged between the first arm 51Ba and the second arm 51Bb, and connects the first arm 51Ba and the second arm 51Bb.
- the joint portion 51Bc has a rotation driving portion such as a motor, and the second arm 51Bb can be swiveled around the vertical axis with respect to the first arm 51Ba.
- the nozzle moving mechanism 50B may be configured to include an arm 51B having a joint portion 51Bc. With such a configuration, the degree of freedom in arranging the plurality of first nozzles 41 and the plurality of nozzle baths 42 can be increased.
- FIG. 11 shows an example in which a plurality of first nozzles 41 and a plurality of nozzle baths 42 are linearly arranged in the horizontal direction.
- a part of the plurality of first nozzles 41 is arranged on one side (for example, the Y-axis positive direction side) of the swivel elevating mechanism 52 of the nozzle moving mechanism 50B, and the other part is arranged. It may be arranged on another side (for example, the Y-axis negative direction side) of the swivel elevating mechanism 52 of the nozzle moving mechanism 50B.
- the plurality of nozzle buses 42 are also arranged separately on one side and another side of the swivel elevating mechanism 52.
- the nozzle bath 42 that receives the acid-based treatment liquid on one side of the swirling elevating mechanism 52 and arranging the nozzle bath 42 that receives the alkaline treatment liquid on the other side, the components of the acid-based treatment liquid can be arranged. It is possible to prevent the components of the alkaline treatment liquid from being mixed with each other. Further, the present invention is not limited to this, and for example, the nozzle bath 42 that receives the high temperature treatment liquid may be arranged on one side of the swivel lifting mechanism 52, and the nozzle bath 42 that receives the low temperature treatment liquid may be arranged on the other side.
- FIG. 13 is a diagram showing a second modification of the nozzle moving mechanism according to the embodiment.
- the nozzle moving mechanism 50C includes an arm 51C, an arm moving portion 52C, a nozzle holding portion 53, and a holding portion moving portion 54.
- the arm 51C extends in the horizontal direction (for example, the Y-axis direction).
- the arm moving portion 52C horizontally supports the rail 51C1 extending in the horizontal direction (for example, the X-axis direction) orthogonal to the extending direction of the arm 51C and the arm 51C, and is a drive that can move along the rail 52C1.
- a unit 52C2 is provided.
- the holding portion moving portion 54 supports the nozzle holding portion 53 below and is movable along the arm 51C.
- the nozzle moving mechanism 50C may be configured to move the nozzle holding portion 53 along two horizontal directions (X-axis direction and Y-axis direction) orthogonal to each other. With such a configuration, the degree of freedom in arranging the plurality of first nozzles 41 and the plurality of nozzle baths 42 can be increased.
- FIG. 13 shows an example in which a plurality of first nozzles 41 and a plurality of nozzle buses 42 are linearly arranged along the extending direction of the arm 51C, that is, the Y-axis direction.
- the plurality of first nozzles 41 and the plurality of nozzle buses 42 may be arranged linearly along the extending direction of the rail 52C1, that is, the X-axis direction.
- the plurality of first nozzles 41 and the plurality of nozzle baths 42 do not necessarily have to be arranged linearly.
- the nozzle moving mechanism 50D includes a shaft portion 56, a driving portion 57, a plurality of arms 58, and a plurality of switching portions 59.
- the shaft portion 56 extends along the vertical direction (Z-axis direction).
- the drive unit 57 is provided, for example, at the base end portion of the shaft portion 56, and rotates the shaft portion 56 around the vertical shaft Ax. Further, the drive unit 57 can raise and lower the shaft unit 56.
- the base end portion of the plurality of arms 58 is pivotally supported by the shaft portion 56, and the first nozzle 41 is supported at the tip end portion.
- the plurality of arms 58 are supported by the shaft portion 56 at different height positions, and hold each of the plurality of first nozzles 41 at different height positions. As a result, the plurality of first nozzles 41 are arranged at height positions that do not overlap each other in the vertical direction.
- the switching unit 59 is, for example, an electromagnetic clutch, a mechanical clutch, or the like, and switches the arm 58 that turns together with the shaft portion 56 among the plurality of arms 58.
- the switching unit 59 includes an armature 59a, a rotor 59b, and an electromagnet 59c.
- the armature 59a is attached to the base end portion 58a of the arm 58 via an urging member 59a1 such as a leaf spring.
- the urging member 59a1 urges the armature 59a toward the base end portion 58a of the arm 58.
- the rotor 59b is arranged to face the armature 59a at intervals and rotates together with the shaft portion 56.
- the electromagnet 59c is built in the rotor 59b.
- the first nozzle 41 used for the liquid treatment can be selectively moved among the plurality of first nozzles 41. Therefore, for example, as shown in FIG. 17, when the first nozzle 41 in the middle stage of the plurality of first nozzles 41 is used for liquid treatment, the nozzle moving mechanism 50D rotates only the first nozzle 41 in the middle stage. It can be moved to the processing position above the wafer W.
- FIG. 18 is a diagram showing a configuration example of the nozzle bus in the third modification.
- the bus unit 420D has a plurality of nozzle baths 42D.
- the plurality of nozzle baths 42D have an opening 42D1 at a height position corresponding to the height position of the corresponding first nozzle 41. That is, the plurality of nozzle baths 42D each have an opening 42D1 at a different height position.
- FIG. 19 is a diagram showing a fourth modification of the nozzle moving mechanism according to the embodiment.
- the nozzle moving mechanism 50E includes a shaft portion 56, a driving portion 57, a plurality of arms 58E, and a switching portion 59E.
- the plurality of arms 58E are provided separately from the shaft portion 56. Further, the plurality of arms 58E are arranged radially around the vertical axis Ax, which is the turning center of the shaft portion 56, with the base end portion 58Ea facing the shaft portion 56. The plurality of arms 58E may be arranged at different height positions or may be arranged at the same height position.
- One switching portion 59E is provided, for example, on the outer peripheral portion of the shaft portion 56.
- the switching portion 59E is, for example, an electromagnetic clutch, and the base end portion 58Ea of the arm 58E is attracted by an electromagnetic force and connected to the shaft portion 56. As a result, the power of the shaft portion 56 is transmitted to the arm 58E, and the arm 58E turns together with the shaft portion 56.
- the nozzle moving mechanism 50E may have a configuration in which a plurality of arms 58E provided separately from the shaft portion 56 are connected to the shaft portion 56 by using the switching portion 59E.
- the switching unit 59E is not limited to the electromagnetic clutch, but may be a mechanical clutch.
- the nozzle moving mechanism 50F includes first to third shaft portions 56F1 to 56F3, first to third drive units 57F1 to 57F3, and first to third arms 58F1 to 58F3.
- the number of shafts, drive units, and arms included in the nozzle moving mechanism 50F is not limited to three.
- the first shaft portion 56F1 and the second shaft portion 56F2 are cylindrical members. Of these, the second shaft portion 56F2 is arranged inside the first shaft portion 56F1. Further, the third shaft portion 56F3 is a columnar member, and is arranged inside the second shaft portion 56F2.
- the first to third drive units 57F1 to 57F3 are provided on the first shaft portion 56F1 to the third shaft portion 56F3 on a one-to-one basis, and the first shaft portion 56F1 to the third shaft portion 56F3 are moved up and down and the same vertical shaft is used. Turn around Ax.
- the base end portions of the first to third arms 58F1 to 58F3 are supported by the first to third shaft portions 56F1 to 56F3, respectively, and the first nozzle 41 is supported at the tip end portion.
- the first to third arms 58F1 to 58F3 are arranged radially around the vertical axis Ax. Further, the first to third arms 58F1 to 58F3 are arranged at the same height position, for example.
- the first shaft portion 56F1 is a passing portion through which the second arm 58F2 in the standby state is passed and the third arm 58F3 in the standby state is passed when the first shaft portion 56F1 is moved up and down by the first drive unit 57F1. It has 563F1. The upper and lower ends of the passing portions 562F1 and 563F1 are open. Therefore, as shown in FIG. 21, the first shaft portion 56F1 can rise without interfering with the second arm 58F2 and the third arm 58F3.
- the first shaft portion 56F1 does not interfere with the second arm 58F2 and the third arm 58F3 not only in the vertical direction but also in the circumferential direction.
- the first shaft portion 56F1 can be swiveled without interfering with the second arm 58F2 and the third arm 58F3. That is, only the first arm 58F1 can be selectively swiveled.
- the second shaft portion 56F2 has a passing portion 563F2 that allows the second shaft portion 56F2 to pass through the standby third arm 58F3 when the second shaft portion 56F2 is moved up and down by the second drive unit 57F2.
- the upper and lower ends of the passing portion 563F2 are open. Therefore, as shown in FIG. 22, the second shaft portion 56F2 can rise without interfering with the third arm 58F3. Further, as described above, since the first shaft portion 56F1 is provided with the passing portion 562F1, the second arm 58F2 can rise without interfering with the first shaft portion 56F1.
- the second shaft portion 56F2 does not interfere with the first arm 58F1 and the third arm 58F3 in the circumferential direction. Therefore, the second shaft portion 56F2 can be swiveled without interfering with the first arm 58F1 and the third arm 58F3. That is, only the second arm 58F2 can be selectively swiveled.
- the first shaft portion 56F1 and the second shaft portion 56F2 are provided with passing portions 563F1 and 563F2, respectively. Therefore, as shown in FIG. 23, the third arm 58F3 can rise without interfering with the first shaft portion 56F1 and the second shaft portion 56F2.
- the third shaft portion 56F3 does not interfere with the first arm 58F1 and the second arm 58F2 in the circumferential direction. Therefore, the third shaft portion 56F3 can be swiveled without interfering with the first arm 58F1 and the second arm 58F2. That is, only the third arm 58F3 can be selectively swiveled.
- only one of the first to third arms 58F1 to 58F3 can be raised and lowered and swiveled.
- the substrate liquid processing apparatus (as an example, the processing unit 16) according to the embodiment includes a cup (as an example, a cup 30), a plurality of nozzle circulation systems (as an example, a nozzle circulation system 40), and the like.
- a second nozzle (as an example, a second nozzle 61) and an accommodating portion (as an example, a chamber 70) are provided.
- the cup surrounds the periphery of the substrate (for example, the wafer W).
- the plurality of nozzle circulation systems are arranged outside the first nozzle (for example, the first nozzle 41) and the cup, and receive the processing liquid discharged from the first nozzle (for example, the nozzle bath 42).
- the second nozzle is a nozzle that does not constitute a nozzle circulation system.
- the accommodating portion accommodates a cup, a plurality of first nozzles of the plurality of nozzle circulation systems, and a plurality of liquid receiving tanks and a second nozzle. Further, the second nozzle is arranged between the first side wall (side wall 71b as an example) of the accommodating portion and the cup, and the plurality of first nozzles are different from the first side wall of the accommodating portion. (As an example, 71a) is placed between the cup.
- the substrate liquid treatment apparatus According to the substrate liquid treatment apparatus according to the embodiment, even if the components of the treatment liquid leak from the liquid receiving tank, the leaked parts are collected in one place, so that the atmosphere in the accommodating portion can be easily controlled.
- the substrate liquid treatment device may be provided with an exhaust duct (exhaust duct 200 as an example) common to a plurality of liquid receiving tanks.
- exhaust duct 200 exhaust duct 200 as an example
- the plurality of liquid receiving tanks are also arranged in one place. Therefore, it is easy to provide a common exhaust duct in a plurality of liquid receiving tanks.
- the substrate liquid processing apparatus may include a tank unit having a plurality of liquid receiving tanks (as an example, a bus unit 420).
- the exhaust duct may have a plurality of exhaust intake ports (exhaust intake port 201 as an example) on the floor surface (for example, the floor surface 73) of the accommodating portion around the tank unit. ..
- the substrate liquid treatment device may include a cleaning liquid supply unit (for example, a cleaning liquid supply unit 210) that supplies the cleaning liquid inside the exhaust duct.
- a cleaning liquid supply unit for example, a cleaning liquid supply unit 210 that supplies the cleaning liquid inside the exhaust duct.
- the substrate liquid processing apparatus may include a control unit that controls a cleaning liquid supply unit.
- the cleaning liquid supply unit may include a first discharge unit and a second discharge unit that discharge the cleaning liquid.
- the control unit controls the cleaning liquid supply unit to discharge the cleaning liquid from the first discharge unit at the first flow rate and the first processing time, and from the second flow rate and the first processing time, which is larger than the first flow rate.
- the cleaning liquid may be discharged from the second discharge portion in a short second treatment time.
- the components of the treatment liquid can be removed from the taken-in exhaust gas.
- foreign substances such as crystals adhering to the exhaust duct can be washed away with a cleaning liquid.
- the substrate liquid treatment apparatus includes an acid-based tank unit (for example, an acid-based bath unit 420A1), an alkaline-based tank unit (for example, an alkaline-based bath unit 420A2), and an acid-based exhaust duct (for example, an acid-based exhaust duct).
- An acid-based exhaust duct 200A1) and an alkaline-based exhaust duct (for example, an alkaline-based exhaust duct 200A2) may be provided.
- the acid-based tank unit has a liquid receiving tank that receives an acid-based treatment liquid among a plurality of receiving tanks.
- the alkaline tank unit has a liquid receiving tank that receives an alkaline treatment liquid among a plurality of liquid receiving tanks.
- the acid-based exhaust duct has an exhaust intake port around the acid-based tank unit.
- the alkaline exhaust duct has an exhaust intake port around the alkaline tank unit. It is possible to suppress the formation of crystals due to the mixture of the acid component contained in the acid-based treatment solution and the alkali component contained in the alkali-based treatment solution.
- the substrate liquid treatment apparatus includes a nozzle moving mechanism (for example, nozzle moving mechanisms 50, 50B to 50F) for selectively moving the first nozzle used for liquid treatment among the plurality of first nozzles. You may be. As a result, the nozzle circulation processing for the remaining first nozzles can be continued during the liquid treatment using the first nozzle.
- a nozzle moving mechanism for example, nozzle moving mechanisms 50, 50B to 50F
- the nozzle moving mechanism includes a shaft portion (as an example, a shaft portion 56), a drive portion (as an example, a shaft portion 57), a plurality of arms (as an example, a shaft portion 58), and a switching portion (as an example, a switching portion). 59) and.
- the shaft portion extends along the vertical direction.
- the drive unit rotates the shaft unit around a vertical shaft.
- the plurality of arms can be swiveled around the shaft portion, and each of the plurality of first nozzles is held at a different height position.
- the switching unit switches the arm that swivels together with the shaft portion among the plurality of arms. Thereby, the first nozzle used for the liquid treatment can be selectively moved among the plurality of first nozzles.
- Each of the plurality of liquid receiving tanks may have an opening (for example, the opening 42D1) at a height position corresponding to the height position of the corresponding first nozzle.
- the plurality of first nozzles may discharge treatment liquids having different temperatures. Even when a plurality of first nozzles are centrally arranged, temperature interference between the first nozzles can be suppressed by continuously discharging the processing liquid from the waiting first nozzle to the liquid receiving tank.
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Abstract
Description
実施形態に係る基板処理システム1の構成について図1を参照して説明する。図1は、実施形態に係る基板処理システム1の構成を示す図である。
次に、処理ユニット16の構成について、図2を参照しながら説明する。図2は、実施形態に係る処理ユニット16の構成を示す図である。処理ユニット16は、基板液処理装置の一例である。
次に、ノズルバス42の排気構成について図8を参照して説明する。図8は、実施形態に係るノズルバス42の排気構成を示す図である。
次に、上述した排気ダクト200の変形例について図10を参照して説明する。図10は、実施形態に係る排気ダクトの変形例を示す図である。
次に、上述したノズル移動機構50の変形例について説明する。図11は、実施形態に係るノズル移動機構の第1変形例を示す図である。また、図12は、第1変形例における複数の第1ノズル41および複数のノズルバス42の他の配置例を示す図である。
3 :処理ステーション
4 :制御装置
18 :制御部
19 :記憶部
20 :基板保持機構
21 :保持部
30 :カップ
40 :ノズル循環システム
41 :第1ノズル
42 :ノズルバス
43 :循環部
50 :ノズル移動機構
60 :第2処理液供給部
61 :第2ノズル
W :ウエハ
Claims (10)
- 基板の周縁を取り囲むカップと、
第1ノズルと、前記カップの外方に配置され、前記第1ノズルから吐出された処理液を受ける受液槽と、前記受液槽で受けた前記処理液を前記第1ノズルに戻す循環部とを含む複数のノズル循環システムと、
前記ノズル循環システムを構成しない第2ノズルと、
前記カップ、前記複数のノズル循環システムが有する複数の前記第1ノズルならびに複数の前記受液槽および前記第2ノズルを収容する収容部と
を備え、
前記第2ノズルは、前記収容部が有する第1側壁と前記カップとの間に配置され、
複数の前記第1ノズルは、前記収容部が有する前記第1側壁とは異なる第2側壁と前記カップとの間に配置される、基板液処理装置。 - 複数の前記受液槽に共通の排気ダクト
を備える、請求項1に記載の基板液処理装置。 - 複数の前記受液槽を有する槽ユニット
を備え、
前記排気ダクトは、
前記槽ユニットの周囲における前記収容部の床面に、複数の排気取込口を有する、請求項2に記載の基板液処理装置。 - 前記排気ダクトの内部に洗浄液を供給する洗浄液供給部
を備える、請求項2または3に記載の基板液処理装置。 - 前記洗浄液供給部を制御する制御部
を備え、
前記洗浄液供給部は、
前記洗浄液を吐出する第1吐出部および第2吐出部
を備え、
前記制御部は、
前記洗浄液供給部を制御して、第1流量且つ第1処理時間にて前記第1吐出部から前記洗浄液を吐出させ、前記第1流量よりも多い第2流量且つ前記第1処理時間よりも短い第2処理時間にて前記第2吐出部から前記洗浄液を吐出させる、請求項4に記載の基板液処理装置。 - 複数の前記受液槽のうち酸系の処理液を受ける受液槽を有する酸系槽ユニットと、
複数の前記受液槽のうちアルカリ系の処理液を受ける受液槽を有するアルカリ系槽ユニットと、
前記酸系槽ユニットの周囲に排気取込口を有する酸系排気ダクトと、
前記アルカリ系槽ユニットの周囲に排気取込口を有するアルカリ系排気ダクトと
を備える、請求項1に記載の基板液処理装置。 - 複数の前記第1ノズルのうち液処理に使用される第1ノズルを選択的に移動させるノズル移動機構
を備える、請求項1~6のいずれか一つに記載の基板液処理装置。 - 前記ノズル移動機構は、
鉛直方向に沿って延在する軸部と、
前記軸部を鉛直軸まわりに回転させる駆動部と、
前記軸部を中心に旋回可能であり、複数の前記第1ノズルの各々を異なる高さ位置にて保持する複数のアームと、
前記複数のアームのうち前記軸部とともに旋回するアームを切り替える切替部と
を備える、請求項7に記載の基板液処理装置。 - 複数の前記受液槽の各々は、
対応する前記第1ノズルの高さ位置に応じた高さ位置に開口部を有する、請求項8に記載の基板液処理装置。 - 複数の前記第1ノズルは、
それぞれ異なる温度の処理液を吐出する、請求項1~9のいずれか一つに記載の基板液処理装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021562583A JP7292417B2 (ja) | 2019-12-06 | 2020-11-24 | 基板液処理装置 |
KR1020227021391A KR20220107234A (ko) | 2019-12-06 | 2020-11-24 | 기판 액 처리 장치 |
CN202080082687.1A CN114762088A (zh) | 2019-12-06 | 2020-11-24 | 基板液处理装置 |
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JPH1074725A (ja) * | 1996-09-02 | 1998-03-17 | Tokyo Electron Ltd | 洗浄装置 |
JP2013026381A (ja) * | 2011-07-20 | 2013-02-04 | Dainippon Screen Mfg Co Ltd | 基板処理装置および基板処理方法 |
JP2018056187A (ja) * | 2016-09-26 | 2018-04-05 | 株式会社Screenホールディングス | 回収配管洗浄方法および基板処理装置 |
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KR100979979B1 (ko) * | 2006-07-26 | 2010-09-03 | 도쿄엘렉트론가부시키가이샤 | 액처리 장치 및 액처리 방법 |
JP5694118B2 (ja) * | 2011-01-18 | 2015-04-01 | 東京エレクトロン株式会社 | 液処理装置および液処理方法 |
US9378988B2 (en) * | 2011-07-20 | 2016-06-28 | SCREEN Holdings Co., Ltd. | Substrate processing apparatus and substrate processing method using processing solution |
JP6125449B2 (ja) * | 2014-03-05 | 2017-05-10 | 東京エレクトロン株式会社 | 基板液処理装置及び基板液処理方法 |
JP6456793B2 (ja) | 2015-08-11 | 2019-01-23 | 東京エレクトロン株式会社 | 基板処理装置および昇華性物質の析出防止方法 |
JP6509104B2 (ja) * | 2015-09-30 | 2019-05-08 | 東京エレクトロン株式会社 | 基板液処理装置 |
JP6494536B2 (ja) * | 2016-01-12 | 2019-04-03 | 東京エレクトロン株式会社 | 基板処理装置および基板処理装置の洗浄方法 |
JP6793048B2 (ja) * | 2017-01-27 | 2020-12-02 | 東京エレクトロン株式会社 | 基板処理装置、ダミーディスペンス方法及びコンピュータ読み取り可能な記録媒体 |
JP6914050B2 (ja) | 2017-02-15 | 2021-08-04 | 東京エレクトロン株式会社 | 基板処理装置 |
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- 2020-11-24 CN CN202080082687.1A patent/CN114762088A/zh active Pending
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JPH1074725A (ja) * | 1996-09-02 | 1998-03-17 | Tokyo Electron Ltd | 洗浄装置 |
JP2013026381A (ja) * | 2011-07-20 | 2013-02-04 | Dainippon Screen Mfg Co Ltd | 基板処理装置および基板処理方法 |
JP2018056187A (ja) * | 2016-09-26 | 2018-04-05 | 株式会社Screenホールディングス | 回収配管洗浄方法および基板処理装置 |
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JPWO2021111927A1 (ja) | 2021-06-10 |
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