KR102258598B1 - 뚜껑들 및 노즐들 상에 희토류 옥사이드 기반 코팅들을 위한 이온 보조 증착 - Google Patents
뚜껑들 및 노즐들 상에 희토류 옥사이드 기반 코팅들을 위한 이온 보조 증착 Download PDFInfo
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- KR102258598B1 KR102258598B1 KR1020167001721A KR20167001721A KR102258598B1 KR 102258598 B1 KR102258598 B1 KR 102258598B1 KR 1020167001721 A KR1020167001721 A KR 1020167001721A KR 20167001721 A KR20167001721 A KR 20167001721A KR 102258598 B1 KR102258598 B1 KR 102258598B1
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- thin film
- ceramic
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- C—CHEMISTRY; METALLURGY
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the layer
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- H—ELECTRICITY
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- 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
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H01L21/67005—Apparatus not specifically provided for elsewhere
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- H01L21/67023—Apparatus for fluid treatment for general liquid treatment, e.g. etching followed by cleaning
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- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
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Abstract
Description
도 1은 가공 챔버의 일 구체예의 단면도를 도시한 것이다.
도 2a는 이온 보조 증착(IAD)과 같은 고에너지 입자들을 사용하는 다양한 증착 기술들에 적용 가능한 증착 메카니즘을 도시한 것이다.
도 2b는 IAD 증착 장비의 개략도를 도시한 것이다.
도 3 및 도 4는 하나 이상의 박막 보호층들에 덮혀진 물품들(예를 들어, 뚜껑들 및/또는 노즐들)의 측단면도들을 예시한 것이다.
도 5a는 일 구체예에 따라, 희토류 옥사이드 플라즈마 내성 층을 갖는 챔버 뚜껑의 사시도를 예시한 것이다.
도 5b는 일 구체예에 따라, 희토류 옥사이드 플라즈마 내성 층을 갖는 챔버 뚜껑의 측단면도를 예시한 것이다.
도 5c는 일 구체예에 따라, 희토류 옥사이드 플라즈마 내성 층을 갖는 챔버 노즐의 사시도를 예시한 것이다.
도 6은 뚜껑 또는 노즐 위에 하나 이상의 보호층들을 형성시키기 위한 공정의 일 구체예를 예시한 것이다.
도 7은 본원에 기술된 구체예들에 따라 생성된 여러 상이한 IAD 코팅들의 침식률들을 포함하는, 유전체 에치 CF4 화학물질에 노출된 다양한 물질들의 침식률들을 도시한 것이다.
도 8 및 도 9는 본 발명의 구체예들에 따라 형성된 박막 보호층들에 대한 CH4-Cl2 및 CHF3-NF3-Cl2 화학물질들 각각 하에서의 침식률들을 예시한 것이다.
도 10 및 도 11은 본 발명의 구체예들에 따라 형성된 박막 보호층들에 대한 CH4-Cl2 및 CHF3-NF3-Cl2 화학물질들 각각 하에서의 거칠기 프로파일들을 예시한 것이다.
도 12는 저 바이어스(low bias)에서 CF4-CHF3 트렌치 화학물질(trench chemistry)에 노출된 다양한 물질들의 침식률들을 도시한 것이다.
Claims (15)
- 에치 반응기(etch reactor)용 챔버 부품으로서,
세라믹 바디를 포함하는 뚜껑 또는 노즐; 및
세라믹 바디의 하나 이상의 표면 상에 이온 보조 증착(ion assisted deposition)을 이용하여 형성된 보호층을 포함하며,
보호층이 8 마이크로인치 또는 그 미만의 평균 표면 거칠기를 갖는 300 ㎛ 미만의 두께를 갖는 플라즈마 내성 희토류 옥사이드 막이고,
보호층이 Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12, YF3, Nd2O3, Er4Al2O9, ErAlO3, Gd4Al2O9, GdAlO3, Nd3Al5O12, Nd4Al2O9, NdAlO3, 또는 Y4Al2O9 및 Y2O3-ZrO2의 고용체를 포함하는 세라믹 컴파운드 중 하나 이상을 포함하는, 챔버 부품. - 제1항에 있어서, 보호층이 10 내지 30 ㎛의 두께를 갖는 챔버 부품.
- 제1항에 있어서, 보호층이 Y4Al2O9 및 Y2O3-ZrO2의 고용체를 포함하는 세라믹 컴파운드를 포함하며, 세라믹 컴파운드가 하기로 이루어진 군으로부터 선택된 조성을 갖는 챔버 부품:
40 mol% 내지 100 mol% 미만의 Y2O3, 0 mol% 초과 내지 60 mol% 미만의 ZrO2, 및 0 mol% 초과 내지 10 mol%의 Al2O3;
40 내지 60 mol%의 Y2O3, 30 내지 50 mol%의 ZrO2, 및 10 내지 20 mol%의 Al2O3;
40 내지 50 mol%의 Y2O3, 20 내지 40 mol%의 ZrO2, 및 20 내지 40 mol%의 Al2O3;
70 mol% 내지 90 mol% 미만의 Y2O3, 0 mol% 초과 내지 20 mol%의 ZrO2, 및 10 내지 20 mol%의 Al2O3;
60 mol% 내지 80 mol% 미만의 Y2O3, 0 mol% 초과 내지 10 mol%의 ZrO2, 및 20 mol% 내지 40 mol% 미만의 Al2O3; 및
40 내지 60 mol%의 Y2O3, 0 mol% 초과 내지 20 mol%의 ZrO2, 및 30 내지 40 mol%의 Al2O3. - 제1항에 있어서, 보호층이 40 내지 45 mol%의 Y2O3, 5 내지 10 mol%의 ZrO2, 35 내지 40 mol%의 Er2O3, 5 내지 10 mol%의 Gd2O3, 및 5 내지 15 mol%의 SiO2의 조성을 갖는 챔버 부품.
- 제1항에 있어서, 보호층의 공극률이 1% 미만인 챔버 부품.
- 제1항에 있어서, 보호층이 8 마이크로인치 미만의 폴리싱후 거칠기(post polished roughness)를 갖는 챔버 부품.
- 제1항에 있어서, 세라믹 바디가 Al2O3, Y2O3, SiO2, 또는 Y4Al2O9 및 Y2O3-ZrO2의 고용체를 포함하는 세라믹 컴파운드 중 하나 이상을 포함하는 벌크 소결된 세라믹 바디인 챔버 부품.
- 제1항에 있어서, 보호층이 하나 이상의 표면 상에 제1 플라즈마 내성 희토류 옥사이드 막 및 제1 플라즈마 내성 희토류 옥사이드 막 상의 제2 플라즈마 내성 희토류 옥사이드 막을 포함하는 보호층 스택을 포함하며, 제1 플라즈마 내성 희토류 옥사이드 막이, 제1 플라즈마 내성 희토류 옥사이드 막이 제2 플라즈마 내성 희토류 옥사이드 막과 상이한 칼라를 갖도록 하는 착색제를 포함하는 챔버 부품.
- 제8항에 있어서, 착색제가 Nd2O3, Sm2O3 또는 Er2O3 중 하나 이상을 포함하는 챔버 부품.
- 제1항에 있어서, 세라믹 바디의 하나 이상의 표면이 8 내지 16 마이크로인치의 거칠기를 갖는 챔버 부품.
- 물품을 제작하는 방법으로서,
에치 반응기용 뚜껑 또는 노즐을 제공하는 단계;
뚜껑 또는 노즐의 하나 이상의 표면 상에 보호층을 증착시키기 위해 이온 보조 증착을 수행하는 단계로서, 보호층이 300 ㎛ 미만의 두께를 갖는 플라즈마 내성 희토류 옥사이드 막인 단계; 및
보호층을 8 마이크로인치 또는 그 미만의 평균 표면 거칠기로 폴리싱하는 단계를 포함하는 방법. - 제11항에 있어서, 보호층이 10 내지 30 ㎛의 두께를 가지며, 초당 1 내지 2 옹스트롱의 증착률이 보호층을 증착시키기 위해 사용되는 방법.
- 제11항에 있어서, 제1 보호층 상에 제2 보호층을 증착시키기 위해 이온 보조 증착을 수행하는 단계를 더 포함하며, 제2 보호층이 5 내지 30 ㎛의 두께를 갖는 추가 플라즈마 내성 희토류 옥사이드 막인 방법.
- 제13항에 있어서, 제1 보호층이, 제1 보호층이 제2 보호층과는 다른 칼라를 갖도록 하는 착색제를 포함하는 방법.
- 제11항 내지 제14항 중 어느 한 항에 있어서, 보호층이 Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12, YF3, Nd2O3, Er4Al2O9, ErAlO3, Gd4Al2O9, GdAlO3, Nd3Al5O12, Nd4Al2O9, NdAlO3, 또는 Y4Al2O9 및 Y2O3-ZrO2의 고용체를 포함하는 세라믹 컴파운드 중 하나 이상을 포함하는 방법.
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