KR100753493B1 - 세정장치 - Google Patents
세정장치 Download PDFInfo
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- KR100753493B1 KR100753493B1 KR1020060006590A KR20060006590A KR100753493B1 KR 100753493 B1 KR100753493 B1 KR 100753493B1 KR 1020060006590 A KR1020060006590 A KR 1020060006590A KR 20060006590 A KR20060006590 A KR 20060006590A KR 100753493 B1 KR100753493 B1 KR 100753493B1
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- Prior art keywords
- carbon dioxide
- cleaning
- supercritical
- high pressure
- homogeneous transparent
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- 238000004140 cleaning Methods 0.000 title claims abstract description 238
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 296
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 148
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 148
- 239000000654 additive Substances 0.000 claims abstract description 125
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- 239000004094 surface-active agent Substances 0.000 description 22
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 229910052731 fluorine Inorganic materials 0.000 description 18
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- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 5
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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 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
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- GZBUMTPCIKCWFW-UHFFFAOYSA-N triethylcholine Chemical compound CC[N+](CC)(CC)CCO GZBUMTPCIKCWFW-UHFFFAOYSA-N 0.000 description 2
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 description 1
- WFSMVVDJSNMRAR-UHFFFAOYSA-N 2-[2-(2-ethoxyethoxy)ethoxy]ethanol Chemical compound CCOCCOCCOCCO WFSMVVDJSNMRAR-UHFFFAOYSA-N 0.000 description 1
- YLPKUPIZOXNPSS-UHFFFAOYSA-N OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F.OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F.OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YLPKUPIZOXNPSS-UHFFFAOYSA-N 0.000 description 1
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- 150000001298 alcohols Chemical class 0.000 description 1
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- 229910000701 elgiloys (Co-Cr-Ni Alloy) Inorganic materials 0.000 description 1
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- XDCZBGLKMJMACF-UHFFFAOYSA-N ethanol Chemical compound CCO.CCO.CCO XDCZBGLKMJMACF-UHFFFAOYSA-N 0.000 description 1
- OCLXJTCGWSSVOE-UHFFFAOYSA-N ethanol etoh Chemical compound CCO.CCO OCLXJTCGWSSVOE-UHFFFAOYSA-N 0.000 description 1
- AINBZKYUNWUTRE-UHFFFAOYSA-N ethanol;propan-2-ol Chemical compound CCO.CC(C)O AINBZKYUNWUTRE-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
-
- 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
- H01L21/67023—Apparatus for fluid treatment for general liquid treatment, e.g. etching followed by cleaning
-
- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/02068—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers
- H01L21/02071—Cleaning during device manufacture during, before or after processing of conductive layers, e.g. polysilicon or amorphous silicon layers the processing being a delineation, e.g. RIE, of conductive layers
-
- 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
- H01L21/02041—Cleaning
- H01L21/02101—Cleaning only involving supercritical fluids
-
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/422—Stripping or agents therefor using liquids only
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Abstract
Description
구 분 | 실시예 1 | 실시예 2 | 실시예 3 | 실시예 4 |
세정첨가제의 배합 조성 (중량%) | PFOA 83.5 스트리퍼 6.0 에탄올 10.5 | monohydrated-PFOA 87.4 스트리퍼 5.2 에탄올 7.4 | PFHA 83.5 스트리퍼 6.0 에탄올 10.5 | PFOA 82.7 MEA 2.5 1-M-2-P 1.7 에탄올 13.1 |
세정첨가제의 용적 | 13.6% | 16.2% | 13.6% | 13.6% |
1차 헹굼용 첨가제 | 에탄올 | 에탄올 | 에탄올 | 에탄올 |
1차 헹굼용 첨가제의 용적 | 16.7% | 16.7% | 16.7% | 16.7% |
세정조건 | 55℃ 148bar 3분(정체) | 51℃ 165bar 3분(정체) | 54℃ 163bar 3분(정체) | 52℃ 160bar 3분(정체) |
1차 헹굼조건 | 36℃ 132±6bar 2분(흐름) | 45±1℃ 153±12bar 2분(흐름) | 42℃ 125±3bar 2분(흐름) | 40±1℃ 145±5bar 2분(흐름) |
2차 헹굼조건 | 39℃ 122±7bar 2분(흐름) | 42℃ 148±7bar 2분(흐름) | 46℃ 121±3bar 2분(흐름) | 40±3℃ 136±6bar 2분(흐름) |
세정용 첨가제 | 에탄올 |
세정용 첨가제의 용적(%) | 13.6% |
세정조건 | 58℃, 150 bar, 2분(정체) |
헹굼조건 | 48± 1℃, 142± 6bar, 2분(흐름) |
구 분 | 실시예 6 | 실시예 7 |
세정용 첨가제의 배합 조성 (중량%) | PFOA 83.5 스트리퍼 6.0 에탄올 10.5 | PFOA 83.8 스트리퍼 7.1 에탄올 9.1 |
세정용 첨가제의 용적 (%) | 13.6% | 17.5% |
1차 헹굼용 첨가제 | 에탄올 | 에탄올 |
1차 헹굼용 첨가제의 용적 (%) | 16.7% | 16.7% |
세정조건 | 59℃ 148 bar 3분(정체) | 50℃ 150 bar 3분(정체) |
1차 헹굼조건 | 43±3℃ 125±5bar 2분(흐름) | 42℃ 150±3bar 2분(흐름) |
2차 헹굼조건 | 48±3℃ 122±1bar 2분(흐름) | 40℃ 150±5bar 2분(흐름) |
그리고 상기 세정용 첨가제로는, 상기 실시예에서 사용한 것과 같이, 알콜계 용매만을 사용할 수도 있고, 상기 웨이퍼를 헹구는 단계에서 초임계 상태의 이산화탄소만을 사용할 수도 있으며, 알코올계 용매는 메탄올, 에탄올, 이소프로판올 또는 이들의 혼합물일 수도 있다.
Claims (16)
- 액체 이산화탄소 공급원 및 기체 이산화탄소 공급원;상기 액체 이산화탄소 공급원으로부터 공급되는 이산화탄소를 고압의 이산화탄소로 만드는 고압펌프;세정용 첨가제 공급원 및 헹굼용 첨가제 공급원;상기 세정용 첨가제 공급원으로부터 공급되는 세정용 첨가제와 상기 액체 이산화탄소 공급원으로부터 공급되는 초임계 상태의 이산화탄소를 혼합하여 초임계 상태의 균질 투명상 혼합물을 형성하거나, 상기 헹굼용 첨가제 공급원으로부터 공급되는 헹굼용 첨가제와 상기 액체 이산화탄소 공급원으로부터 공급되는 초임계 상태의 이산화탄소를 혼합하여 초임계 상태의 헹굼용 혼합물을 형성하는 균질 투명상 혼합기;상기 균질 투명상 혼합기로부터 공급되는 초임계 상태의 균질 투명상 혼합물을 이용하여 세정하고, 상기 균질 투명상 혼합기로부터 공급되는 초임계 상태의 헹굼용 혼합물을 이용하여 헹굼을 수행하는 고압세정기;상기 고압세정기로부터 배출되는 혼합물로부터 기체상의 이산화탄소를 분리하는 분리기; 및상기 분리된 이산화탄소를 응축하는 이산화탄소 응축용기;를 구비하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 분리기에서 분리된 이산화탄소를 정제하는 세정컬럼 및 흡착컬럼 중 적어도 어느 하나를 더 구비하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 이산화탄소 응축용기에서 응축된 이산화탄소는 상기 액체 이산화탄소 공급원에 제공되어 재사용되는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 액체 이산화탄소 공급원으로부터 공급되는 이산화탄소와, 상기 세정용 첨가제 공급원으로부터 공급되는 세정용 첨가제와, 상기 헹굼용 첨가제 공급원으로부터 공급되는 헹굼용 첨가제를 가열하는 가열기를 더 구비하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 균질 투명상 혼합기는, 대기압 또는 10bar 이하의 저압으로 공급되는 세정용 첨가제와, 초임계 고압인 120bar 내지 300bar의 이산화탄소를 압력차에 의한 혼합효과를 이용하여 초임계 상태의 균질 투명상 혼합물을 형성하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 고압세정기에 연결되어 상기 고압세정기 내의 압력을 조절하는 압력조절밸브를 더 구비하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 고압용세정기와 상기 균질 투명상 혼합기 사이와, 상기 고압용세정기의 배출구를 연결하는 순환관; 및상기 순환관에 연결된 순환 펌프;를 더 구비하는 것을 특징으로 하는 세정장치.
- 제 1항에 있어서,상기 균질 투명상 혼합기에는 내부 또는 외부 순환 장치가 더 구비되는 것을 특징으로 하는 세정장치.
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