KR102095084B1 - 자외선 처리를 이용하여 금속 하드마스크의 제거를 강화시키는 시스템 및 방법 - Google Patents
자외선 처리를 이용하여 금속 하드마스크의 제거를 강화시키는 시스템 및 방법 Download PDFInfo
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- 238000004140 cleaning Methods 0.000 claims abstract description 49
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
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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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02054—Cleaning before device manufacture, i.e. Begin-Of-Line process combining dry and wet cleaning steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0057—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by ultraviolet radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
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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
- H01L21/67—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
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67115—Apparatus for thermal treatment mainly by radiation
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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
- H01L21/67—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
- H01L21/6715—Apparatus for applying a liquid, a resin, an ink or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Weting (AREA)
Abstract
Description
도 1은 본 발명의 실시형태에 따른 예시적인 공정의 흐름도이다.
도 2는 본 발명의 실시형태에 따른 예시적인 세정 시스템의 개략적인 단면도이다.
도 3은 본 발명의 실시형태에 따른, 패터닝된 피처 상에 하드마스크를 구비한 기판 부분의 단면도이다.
도 4는 본 발명의 실시형태에 따른, 패터닝된 피처 상에 하드마스크 및 폴리머 코팅을 구비한 기판 부분의 단면도이다.
Claims (20)
- 기판을 세정하는 방법에 있어서,
기판을 세정 시스템 내에 수용하는 단계로서, 상기 세정 시스템은 습식 세정 시스템, 처리 챔버, 및 액토출 서브시스템을 포함하며, 상기 기판은 하부층 상에 적층된 하드마스크층을 포함하는 것인, 기판 수용 단계와,
상기 처리 챔버 내의 기판 홀더 상에서 상기 기판을 회전시키는 단계와,
상기 기판의 최상면 상에 과산화수소액을 적하하는 단계와,
상기 기판이 회전하는 동안에 UV(ultraviolet) 전자기 방사선으로 상기 기판 상의 과산화수소액을 조사하는 단계
를 포함하고,
상기 UV 전자기 방사선은 185-400 나노미터 사이의 파장을 갖고, 상기 하드마스크는 UV 전자기 방사선이 조사된 과산화수소에 의해 용해되어, 상기 과산화수소 흐름의 작용에 의해 그리고 상기 기판의 회전 작용에 의해, 상기 기판으로부터 제거되고,
상기 과산화수소액을 조사하는 단계는, 상기 기판의 중심부를 제1 세기로 조사하는 단계와 상기 기판의 가장자리부를 제2 세기로 조사하는 단계를 포함하고, 상기 제1 세기는 상기 제2 세기보다 높은 것인 기판 세정 방법. - 제1항에 있어서, 상기 과산화수소액을 조사하는 단계는, 185-254 나노미터 사이의 파장을 갖는 UV 전자기 방사선으로 조사하는 단계를 포함하는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액을 조사하는 단계는, 평방 센티미터당 4 밀리와트보다 높은 UV 전자기 방사선 세기를 제공하는 단계를 포함하는 것인 기판 세정 방법.
- 제3항에 있어서, 상기 과산화수소액을 조사하는 단계는, 평방 센티미터당 800 밀리와트보다 높은 UV 전자기 방사선 세기를 제공하는 단계를 포함하는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액을 조사하는 단계는, 조사(irradiation) 없는 하드마스크의 박리율과 비교해서 25%보다 더 많이 하드마스크 박리율을 상승시키기에 충분한 단위 면적당 세기를 갖는 UV 전자기 방사선으로 조사하는 단계를 포함하는 것인 기판 세정 방법.
- 삭제
- 제1항에 있어서, 상기 처리 챔버 내의 공정 온도는 섭씨 50도 미만으로 유지되는 것인 기판 세정 방법.
- 제7항에 있어서, 상기 처리 챔버 내의 공정 온도는 섭씨 30도 미만으로 유지되는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액을 적하하기 전에, 상기 기판으로부터 폴리머층을 제거하는 폴리머 세정액을 적하하는 단계를 더 포함하는 기판 세정 방법.
- 제1항에 있어서, 상기 기판을 회전시키는 단계는, 적하된 과산화수소액이 2000 미크론 미만의 막 두께를 갖게 되기에 충분한 회전 속도로 상기 기판을 회전시키는 단계를 포함하는 것인 기판 세정 방법.
- 제10항에 있어서, 상기 기판을 회전시키는 단계는, 적하된 과산화수소액이 200 미크론 미만의 막 두께를 갖게 되기에 충분한 회전 속도로 상기 기판을 회전시키는 단계를 포함하는 것인 기판 세정 방법.
- 제11항에 있어서, 상기 기판을 회전시키는 단계는, 적하된 과산화수소액이 20 미크론 미만의 막 두께를 갖게 되기에 충분한 회전 속도로 상기 기판을 회전시키는 단계를 포함하는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액은 35 중량% 미만의 과산화수소를 갖는 것인 기판 세정 방법.
- 제13항에 있어서, 상기 과산화수소액은 15 중량% 내지 25 중량% 사이의 과산화수소를 갖는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액을 적하하는 단계는, 부식방지 혼합물을 상기 과산화수소액과 혼합하는 단계를 포함하는 것인 기판 세정 방법.
- 제15항에 있어서, 상기 부식방지 혼합물은, 구리의 부식을 방지하는 제1 화학제(agent), 용해된 금속종을 유지하는 제2 화학제, 폴리머를 용해시키는 제3 화학제, 킬레이트제(chelating agent), 및 pH 완충제(buffer)를 포함한 혼합물을 포함하는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 과산화수소액을 적하하는 단계는, 상기 기판이 계속해서 상기 과산화수소액으로 덮여질 만큼 충분한 과산화수소액이 분배되도록 액을 펄스 방식으로 분배하는 단계를 포함하는 것인 기판 세정 방법.
- 제1항에 있어서, 상기 하드마스크층은 상기 하부층의 밀도보다 높은 밀도를 갖는 재료로부터 선택되는 것인 기판 세정 방법.
- 제18항에 있어서, 상기 하드마스크층은 Ti, W, Ta, Ge, 및 C 중 적어도 하나를 포함하는 것인 기판 세정 방법.
- 제18항에 있어서, 상기 하드마스크층은 티탄 질화물(TiN), 탄탈 질화물(TaN), 실리콘 탄화물(SiC), 및 비정질 탄소 중 적어도 하나를 포함하는 금속 하드마스크층인 것인 기판 세정 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361902514P | 2013-11-11 | 2013-11-11 | |
US61/902,514 | 2013-11-11 | ||
PCT/US2014/064852 WO2015070164A1 (en) | 2013-11-11 | 2014-11-10 | System and method for enhanced removal of metal hardmask using ultra violet treatment |
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KR20160084449A KR20160084449A (ko) | 2016-07-13 |
KR102095084B1 true KR102095084B1 (ko) | 2020-03-30 |
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US10735166B2 (en) | 2015-05-29 | 2020-08-04 | Huawei Technologies Co., Ltd. | System and method of UE-centric radio access procedure |
KR20190015666A (ko) * | 2017-08-04 | 2019-02-14 | 세메스 주식회사 | 기판 처리 장치 및 기판 처리 방법 |
US10867815B2 (en) * | 2018-09-04 | 2020-12-15 | Tokyo Electron Limited | Photonically tuned etchant reactivity for wet etching |
US12112959B2 (en) * | 2018-09-04 | 2024-10-08 | Tokyo Electron Limited | Processing systems and platforms for roughness reduction of materials using illuminated etch solutions |
US10896824B2 (en) * | 2018-12-14 | 2021-01-19 | Tokyo Electron Limited | Roughness reduction methods for materials using illuminated etch solutions |
KR20210047961A (ko) * | 2018-09-24 | 2021-04-30 | 어플라이드 머티어리얼스, 인코포레이티드 | 세정 및 표면 처리를 위한 원자 산소 및 오존 디바이스 |
US10982335B2 (en) * | 2018-11-15 | 2021-04-20 | Tokyo Electron Limited | Wet atomic layer etching using self-limiting and solubility-limited reactions |
CN113302730B (zh) * | 2018-12-14 | 2024-11-22 | 东京毅力科创株式会社 | 使用照射刻蚀溶液来降低材料粗糙度的加工系统和平台 |
EP4113584A1 (en) * | 2021-07-02 | 2023-01-04 | Semsysco GmbH | System and method for a surface treatment of a substrate with a liquid |
US11688600B1 (en) * | 2021-12-03 | 2023-06-27 | Pulseforge, Inc. | Method and apparatus for removing particles from the surface of a semiconductor wafer |
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US6800142B1 (en) * | 2002-05-30 | 2004-10-05 | Novellus Systems, Inc. | Method for removing photoresist and post-etch residue using activated peroxide followed by supercritical fluid treatment |
US20070054492A1 (en) | 2004-06-17 | 2007-03-08 | Elliott David J | Photoreactive removal of ion implanted resist |
WO2006012174A2 (en) * | 2004-06-28 | 2006-02-02 | Lam Research Corporation | System and method of cleaning and etching a substrate |
US7921859B2 (en) * | 2004-12-16 | 2011-04-12 | Sematech, Inc. | Method and apparatus for an in-situ ultraviolet cleaning tool |
US7923424B2 (en) | 2005-02-14 | 2011-04-12 | Advanced Process Technologies, Llc | Semiconductor cleaning using superacids |
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US20070227556A1 (en) * | 2006-04-04 | 2007-10-04 | Bergman Eric J | Methods for removing photoresist |
JP5254120B2 (ja) | 2009-04-22 | 2013-08-07 | 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 |
JP2013118347A (ja) | 2010-12-28 | 2013-06-13 | Central Glass Co Ltd | ウェハの洗浄方法 |
JP5877954B2 (ja) * | 2011-03-07 | 2016-03-08 | 株式会社ゼビオス | 非接触浮上搬送機能を有する基板処理装置 |
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TWI570806B (zh) | 2017-02-11 |
US10828680B2 (en) | 2020-11-10 |
WO2015070164A1 (en) | 2015-05-14 |
US20150128990A1 (en) | 2015-05-14 |
TW201532142A (zh) | 2015-08-16 |
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