KR20090044812A - 습식 게이트 산화막 형성 방법 - Google Patents
습식 게이트 산화막 형성 방법 Download PDFInfo
- Publication number
- KR20090044812A KR20090044812A KR1020070111069A KR20070111069A KR20090044812A KR 20090044812 A KR20090044812 A KR 20090044812A KR 1020070111069 A KR1020070111069 A KR 1020070111069A KR 20070111069 A KR20070111069 A KR 20070111069A KR 20090044812 A KR20090044812 A KR 20090044812A
- Authority
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- South Korea
- Prior art keywords
- oxide film
- cleaning
- semiconductor wafer
- gate oxide
- ozone
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000004065 semiconductor Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000004140 cleaning Methods 0.000 claims abstract description 49
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000126 substance Substances 0.000 claims abstract description 13
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 238000007654 immersion Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 230000015556 catabolic process Effects 0.000 abstract description 13
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 239000000243 solution Substances 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 38
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- 239000012535 impurity Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 229910021642 ultra pure water Inorganic materials 0.000 description 5
- 239000012498 ultrapure water Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- -1 silicon peroxide Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000010409 thin film Substances 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
- H01L21/02—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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
-
- 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
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Formation Of Insulating Films (AREA)
Abstract
Description
Claims (8)
- 반도체 웨이퍼의 게이트 산화막 형성 방법에 있어서,RCA 세정약품을 이용하여 반도체 웨이퍼 표면을 세정하는 제1단계;상기 제1단계에 의해 세정된 반도체 웨이퍼 표면을 불산(HF) 용액으로 세정하는 제2단계; 및상기 제2단계에 의해 세정된 반도체 웨이퍼 표면에 오존수를 공급하여, 세정과 동시에 상기 반도체 웨이퍼 표면에 오존에 의한 게이트 산화막을 형성하는 제3단계;를 포함하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제1항에 있어서, 상기 제3단계에서,상기 반도체 웨이퍼를 오존수가 담긴 약액조 내에 침지 처리하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제2항에 있어서,상기 오존수는 오존 농도가 1 내지 20 ppm인 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제3항에 있어서,상기 오존수의 오존 농도를 제어하여 30Å 이하 두께의 산화막을 형성하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제3항에 있어서, 상기 제3단계에서,상기 침지 처리를 10초 내지 10분 동안 수행하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제2항에 있어서, 상기 제3단계에서,상기 오존수의 온도를 10℃ 내지 30℃로 유지하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제1항에 있어서, 상기 제1단계는,RCA 표준세정1에 따른 SC-1 세정액으로 세정하는 단계; 및세정된 반도체 웨이퍼 표면을 RCA 표준세정2에 따른 SC-2 세정액으로 세정하는 단계;를 포함하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
- 제1항에 있어서,각각의 단계가 완료될 때마다 상기 반도체 웨이퍼에 대하여 린스(rinse)를 행하는 것을 특징으로 하는 습식 게이트 산화막 형성 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070111069A KR100914606B1 (ko) | 2007-11-01 | 2007-11-01 | 습식 게이트 산화막 형성 방법 |
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---|---|---|---|
KR1020070111069A KR100914606B1 (ko) | 2007-11-01 | 2007-11-01 | 습식 게이트 산화막 형성 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090044812A true KR20090044812A (ko) | 2009-05-07 |
KR100914606B1 KR100914606B1 (ko) | 2009-08-31 |
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KR1020070111069A KR100914606B1 (ko) | 2007-11-01 | 2007-11-01 | 습식 게이트 산화막 형성 방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113782415A (zh) * | 2021-08-12 | 2021-12-10 | 上海华力集成电路制造有限公司 | 一种栅氧预清洗方法 |
WO2023090009A1 (ja) * | 2021-11-16 | 2023-05-25 | 信越半導体株式会社 | シリコンウェーハの洗浄方法及び自然酸化膜付きシリコンウェーハの製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4164324B2 (ja) * | 2002-09-19 | 2008-10-15 | スパンション エルエルシー | 半導体装置の製造方法 |
KR20050004676A (ko) * | 2003-07-03 | 2005-01-12 | 매그나칩 반도체 유한회사 | 반도체 소자의 트랜지스터 제조 방법 |
KR20070001745A (ko) * | 2005-06-29 | 2007-01-04 | 주식회사 하이닉스반도체 | 게이트 산화막의 전처리 세정방법 |
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2007
- 2007-11-01 KR KR1020070111069A patent/KR100914606B1/ko active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113782415A (zh) * | 2021-08-12 | 2021-12-10 | 上海华力集成电路制造有限公司 | 一种栅氧预清洗方法 |
WO2023090009A1 (ja) * | 2021-11-16 | 2023-05-25 | 信越半導体株式会社 | シリコンウェーハの洗浄方法及び自然酸化膜付きシリコンウェーハの製造方法 |
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KR100914606B1 (ko) | 2009-08-31 |
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