KR20220028142A - 수소 라디칼 및 오존 가스를 사용한 워크피스의 처리 - Google Patents
수소 라디칼 및 오존 가스를 사용한 워크피스의 처리 Download PDFInfo
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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
- H01L21/31—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
- H01L21/31138—Etching organic layers by chemical means by dry-etching
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/427—Stripping or agents therefor using plasma means only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32357—Generation remote from the workpiece, e.g. down-stream
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32422—Arrangement for selecting ions or species in the plasma
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
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- H01J37/32449—Gas control, e.g. control of the gas flow
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- 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
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Abstract
Description
도 1a 및 도 1b는 종래 기술에 따른 예시적인 포토레지스트 제거 공정을 도시하고;
도 2a 및 도 2b는 본 개시의 예시적인 구현예들에 따른 예시적인 포토레지스트 제거 공정을 도시하고;
도 3은 본 개시의 예시적인 구현예에 따른 예시적인 플라즈마 처리 장치를 도시하고;
도 4는 본 개시의 예시적인 구현예에 따른 예시적인 포토레지스트 제거 공정의 예시적인 흐름도를 도시하고;
도 5는 본 개시의 예시적인 구현예에 따른 포스트-플라즈마 가스 주입을 이용한 수소 라디칼의 예시적인 생성을 도시하고;
도 6은 본 개시의 예시적인 구현예에 따른 필라멘트를 이용한 수소 라디칼의 예시적인 생성을 도시하고;
도 7은 본 개시의 예시적인 구현예들에 따른 예시적인 플라즈마 처리 장치를 도시하고;
도 8은 본 개시의 예시적인 구현예들에 따른 예시적인 플라즈마 처리 장치를 도시하고;
도 9는 수소 라디칼에 노출된 후 포토레지스트 회분 양을 나타내고;
도 10a 및 10b는 수소 라디칼에 노출될 때 저-k 재료 층 손실을 나타내고;
도 11a 및 도 11b는 오존 공정 가스에 노출된 후 포토레지스트 회분 양을 나타내고; 그리고
도 12는 오존 공정 가스에 노출된 후의 저-k 유전체 재료 손실을 나타낸다.
Claims (20)
- 워크피스를 처리하는 방법으로서,
포토레지스트 층 및 저-k(low-k) 유전체 재료 층을 포함하는 워크피스를 처리 챔버에 배치하는 단계;
플라즈마 챔버에서 유도된 플라즈마를 사용하여 수소 가스를 포함하는 공정 가스로부터 하나 이상의 종을 생성하는 단계;
하나 이상의 종을 여과하여 하나 이상의 수소 라디칼을 포함하는 여과된 혼합물을 생성하는 단계; 및
수소 라디칼이 포토레지스트 층을 적어도 부분적으로 에칭하도록 포토레지스트 층을 처리 챔버 내의 수소 라디칼에 노출시키는 단계를 포함하는 방법.
- 제1항에 있어서,
공정 가스는 산소 함유 가스를 추가로 포함하는 방법.
- 제1항에 있어서,
공정 가스 내의 수소 가스의 농도가 약 30 부피% 내지 약 100 부피%인 방법.
- 제1항에 있어서,
처리 챔버 내로 오존 공정 가스를 유입시키는 단계; 및 워크피스를 오존 공정 가스에 노출시키는 단계를 추가로 포함하는 방법.
- 제4항에 있어서,
처리 챔버와 플라즈마 챔버는 분리 그리드에 의해 분리되고, 추가로, 오존 공정 가스는 분리 그리드의 하나 이상의 가스 주입 포트를 통해 유입되는 방법.
- 제4항에 있어서,
처리 챔버와 플라즈마 챔버는 분리 그리드에 의해 분리되고, 추가로, 처리 챔버 내로 오존 공정 가스를 유입시키는 단계는 오존 공정 가스를 플라즈마 챔버 내로 유입시키는 단계 및 오존 공정 가스가 분리 그리드를 통해 처리 챔버로 흐르도록 하는 단계를 포함하는 방법.
- 제4항에 있어서,
오존 공정 가스는 처리 챔버 내의 하나 이상의 가스 주입 포트를 통해 유입되는 방법.
- 제4항에 있어서,
오존 공정 가스는 오존 가스 및 산소 가스를 포함하는 방법.
- 제8항에 있어서,
오존 공정 가스 내의 오존 가스의 농도는 약 0.5 부피% 내지 약 20 부피%의 범위인 방법.
- 제4항에 있어서,
워크피스를 하나 이상의 수소 라디칼에 노출시키는 것 및 워크피스를 오존 공정 가스에 노출시키는 것을 교번하는(alternating) 단계를 추가로 포함하는 방법.
- 제1항에 있어서,
워크피스를 희석된 불산(hydrofluoric acid) 습식 공정에 노출시키는 단계를 추가로 포함하는 방법.
- 제1항에 있어서,
하나 이상의 수소 라디칼은 유도 결합 플라즈마 소스를 사용하여 공정 가스로부터 생성되는 방법.
- 제1항에 있어서,
하나 이상의 수소 라디칼은 텅스텐 필라멘트를 사용하여 생성되는 방법.
- 제1항에 있어서,
하나 이상의 수소 라디칼은 수소 가스를 플라즈마 소스의 하류에서 하나 이상의 여기된 불활성 가스 분자와 혼합함으로써 생성되는 방법.
- 워크피스를 처리하는 방법으로서,
포토레지스트 층 및 저-k(low-k) 유전체 재료 층을 포함하는 워크피스를 처리 챔버에 배치하는 단계;
처리 챔버 내로 오존 공정 가스를 유입시키는 단계; 및
오존 공정 가스가 포토레지스트 층을 적어도 부분적으로 에칭하도록 워크피스를 오존 공정 가스에 노출시키는 단계를 포함하는 방법.
- 제15항에 있어서,
오존 공정 가스는 오존 가스 및 산소를 포함하는 방법.
- 제15항에 있어서,
오존 공정 가스 내의 오존 가스의 농도는 약 0.5 부피% 내지 약 20 부피%의 범위인 방법.
- 제15항에 있어서,
포토레지스트 층 상에 수소 라디칼 에칭 공정을 수행하는 단계를 추가로 포함하는 방법.
- 제18항에 있어서,
수소 라디칼 에칭 공정은:
플라즈마 챔버에서 유도된 플라즈마를 사용하여 수소 가스를 포함하는 공정 가스로부터 하나 이상의 종을 생성하는 단계;
하나 이상의 종을 여과하여 하나 이상의 수소 라디칼을 포함하는 여과된 혼합물을 생성하는 단계; 및
여과된 혼합물이 포토레지스트 층을 적어도 부분적으로 에칭하도록 처리 챔버에서 하나 이상의 수소 라디칼에 워크피스를 노출시키는 단계를 포함하는 방법.
- 제19항에 있어서,
워크피스를 오존 공정 가스에 노출시키는 것 및 수소 라디칼 에칭 공정을 수행하는 것을 교번하는(alternating) 단계를 추가로 포함하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201962875566P | 2019-07-18 | 2019-07-18 | |
US62/875,566 | 2019-07-18 | ||
PCT/US2020/041907 WO2021011525A1 (en) | 2019-07-18 | 2020-07-14 | Processing of workpieces using hydrogen radicals and ozone gas |
Publications (1)
Publication Number | Publication Date |
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KR20220028142A true KR20220028142A (ko) | 2022-03-08 |
Family
ID=74211247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020227005369A KR20220028142A (ko) | 2019-07-18 | 2020-07-14 | 수소 라디칼 및 오존 가스를 사용한 워크피스의 처리 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11164727B2 (ko) |
EP (1) | EP3999913A4 (ko) |
KR (1) | KR20220028142A (ko) |
CN (1) | CN112689803B (ko) |
TW (1) | TW202117469A (ko) |
WO (1) | WO2021011525A1 (ko) |
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US4201579A (en) | 1978-06-05 | 1980-05-06 | Motorola, Inc. | Method for removing photoresist by hydrogen plasma |
US6235453B1 (en) | 1999-07-07 | 2001-05-22 | Advanced Micro Devices, Inc. | Low-k photoresist removal process |
US6426304B1 (en) | 2000-06-30 | 2002-07-30 | Lam Research Corporation | Post etch photoresist strip with hydrogen for organosilicate glass low-κ etch applications |
US6693043B1 (en) | 2002-09-20 | 2004-02-17 | Novellus Systems, Inc. | Method for removing photoresist from low-k films in a downstream plasma system |
US20040154743A1 (en) * | 2002-11-29 | 2004-08-12 | Savas Stephen E. | Apparatus and method for low temperature stripping of photoresist and residues |
US7226852B1 (en) | 2004-06-10 | 2007-06-05 | Lam Research Corporation | Preventing damage to low-k materials during resist stripping |
US7288484B1 (en) | 2004-07-13 | 2007-10-30 | Novellus Systems, Inc. | Photoresist strip method for low-k dielectrics |
US7479457B2 (en) * | 2005-09-08 | 2009-01-20 | Lam Research Corporation | Gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof |
US7704887B2 (en) * | 2005-11-22 | 2010-04-27 | Applied Materials, Inc. | Remote plasma pre-clean with low hydrogen pressure |
US8021564B2 (en) * | 2006-10-06 | 2011-09-20 | Tokyo Electron Limited | Method for detecting an end point of resist peeling, method and apparatus for peeling resist, and computer-readable storage medium |
JP4999419B2 (ja) * | 2006-10-12 | 2012-08-15 | 東京エレクトロン株式会社 | 基板処理方法および基板処理システム、ならびにコンピュータ読取可能な記憶媒体 |
US7807579B2 (en) * | 2007-04-19 | 2010-10-05 | Applied Materials, Inc. | Hydrogen ashing enhanced with water vapor and diluent gas |
US8591661B2 (en) | 2009-12-11 | 2013-11-26 | Novellus Systems, Inc. | Low damage photoresist strip method for low-K dielectrics |
US20120024314A1 (en) * | 2010-07-27 | 2012-02-02 | Axcelis Technologies, Inc. | Plasma mediated ashing processes |
JP5560285B2 (ja) * | 2009-11-17 | 2014-07-23 | 株式会社日立ハイテクノロジーズ | 試料処理装置、試料処理システム及び試料の処理方法 |
JP2013048127A (ja) * | 2011-07-26 | 2013-03-07 | Applied Materials Inc | アッシュ後の側壁の回復 |
JP6016339B2 (ja) * | 2011-08-12 | 2016-10-26 | 東京エレクトロン株式会社 | カーボンナノチューブの加工方法及び加工装置 |
US9165783B2 (en) * | 2012-11-01 | 2015-10-20 | Applied Materials, Inc. | Method of patterning a low-k dielectric film |
JP5846335B1 (ja) | 2014-03-26 | 2016-01-20 | 東レ株式会社 | 半導体装置の製造方法及び半導体装置 |
CN107710386B (zh) * | 2015-06-05 | 2021-12-21 | 应用材料公司 | 工艺腔室 |
US10217626B1 (en) * | 2017-12-15 | 2019-02-26 | Mattson Technology, Inc. | Surface treatment of substrates using passivation layers |
-
2020
- 2020-07-14 EP EP20841226.2A patent/EP3999913A4/en not_active Withdrawn
- 2020-07-14 WO PCT/US2020/041907 patent/WO2021011525A1/en unknown
- 2020-07-14 US US16/928,220 patent/US11164727B2/en active Active
- 2020-07-14 KR KR1020227005369A patent/KR20220028142A/ko not_active Application Discontinuation
- 2020-07-14 CN CN202080004313.8A patent/CN112689803B/zh active Active
- 2020-07-17 TW TW109124193A patent/TW202117469A/zh unknown
Also Published As
Publication number | Publication date |
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TW202117469A (zh) | 2021-05-01 |
WO2021011525A1 (en) | 2021-01-21 |
US20210020413A1 (en) | 2021-01-21 |
EP3999913A1 (en) | 2022-05-25 |
US11164727B2 (en) | 2021-11-02 |
CN112689803B (zh) | 2022-03-11 |
CN112689803A (zh) | 2021-04-20 |
EP3999913A4 (en) | 2022-08-10 |
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