KR100557273B1 - 플라즈마에 튜닝되는 샤워헤드 rf 전극을 갖는 아킹 억제된 merie 플라즈마 반응기 - Google Patents
플라즈마에 튜닝되는 샤워헤드 rf 전극을 갖는 아킹 억제된 merie 플라즈마 반응기 Download PDFInfo
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- H—ELECTRICITY
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- 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
- H01J37/32431—Constructional details of the reactor
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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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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- 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
- H01J37/32082—Radio frequency generated discharge
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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
- H01J37/32082—Radio frequency generated discharge
- H01J37/32174—Circuits specially adapted for controlling the RF discharge
- H01J37/32183—Matching circuits
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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
- H01J37/32431—Constructional details of the reactor
- H01J37/3266—Magnetic control means
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Abstract
Description
Claims (50)
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- 반도체 워크피스를 프로세싱하는 플라즈마 반응기에 있어서,챔버 벽을 가지며 반도체 워크피스를 유지하는 워크피스 지지부를 포함하는 반응기 챔버;상기 워크피스 지지부를 오버레이하는 오버헤드 전극으로서, 상기 챔버벽의 일 부분을 구비하는, 오버헤드 전극;VHF 주파수에서 상기 오버헤드 전극에 전력을 공급하는 RF 전력 발생기로서, 상기 오버헤드 전극은 상기 발생기의 VHF 주파수에 있는 또는 그 부근에 있는 VHF 전극-플라즈마 공진 주파수에서 플라즈마와 공진을 형성하는 리액턴스를 가지는 RF 전력 발생기;상기 발생기와 상기 오버헤드 전극 사이에 연결되는 고정된 임피던스 정합 엘리먼트로서, 상기 고정된 임피던스 정합 엘리먼트는 적어도 상기 전극-플라즈마 공진 주파수 부근의 또는 그 주파수와 동일한 VHF 정합 엘리먼트 공진 주파수를 갖는 고정된 임피던스 정합 엘리먼트; 및상기 워크피스의 상면에 걸쳐 시간에 따라 회전하는 자계를 생성하는 MERIE 자계 발생기를 구비하는 플라즈마 반응기.
- 제 31 항에 있어서,상기 자계는 상기 자계와 연관된 전자 사이클로트론 주파수가 상기 RF 전력 발생기의 상기 VHF 주파수보다 작아지도록 충분히 작은 크기를 갖는 플라즈마 반응기.
- 제 32 항에 있어서,상기 전자 사이클로트론 주파수는 상기 VHF 주파수보다 적어도 5% 작은 플라즈마 반응기.
- 제 31 항에 있어서,상기 워크피스 지지부와 대향하는 상기 오버헤드 전극의 표면상에 형성되는 오버헤드 절연층을 더 구비하는 플라즈마 반응기.
- 제 34 항에 있어서,상기 RF 전력 발생기와 상기 오버헤드 전극 사이에 용량성 절연층을 더 구비하는 플라즈마 반응기.
- 제 35 항에 있어서,상기 워크피스 지지부로부터 떨어져 대향하는 상기 오버헤드 전극의 표면을 오버레이 및 접촉하는 금속폼 (metal foam) 층을 더 구비하는 플라즈마 반응기.
- 제 34 항에 있어서,상기 오버헤드 절연층을 커버하는 실리콘 함유 코팅을 더 구비하는 플라즈마 반응기.
- 제 37 항에 있어서,상기 실리콘 함유 코팅은 실리콘 또는 실리콘 카바이드 중 하나를 포함하는 플라즈마 반응기.
- 제 34 항에 있어서,상기 오버헤드 전극은 복수의 가스 주입구를 가지며, 상기 오버헤드 절연층은 상기 가스 주입구내의 아킹을 억제하기에 충분한 커패시턴스를 제공하는 플라즈마 반응기
- 제 35 항에 있어서,상기 용량성 절연층은 상기 챔버내의 플라즈마로부터의 D.C. 전류가 상기 오버헤드 전극을 통하여 흐르는 것을 차단하기에 충분한 커패시턴스를 갖는 플라즈마 반응기.
- 제 36 항에 있어서,상기 전극은 상기 워크피스 지지부와 대개 대향하는 복수의 가스 주입구를 가지며,상기 금속폼 층은 상기 가스 주입구 내의 축방향 전계를 억제하기에 충분한 두께를 가지는 플라즈마 반응기.
- 제 34 항에 있어서,상기 오버헤드 전극은 알루미늄을 포함하며, 상기 오버헤드 절연층은 양극산화시킴으로써 형성되는 플라즈마 반응기.
- 제 40 항에 있어서,상기 용량성 절연층은 플라즈마 시스 (sheath) 에 생성된 고조파에 대하여 상기 오버헤드 전극을 통하여 접지에 낮은 임피던스 경로를 제공하는 커패시턴스를 형성하는 플라즈마 반응기.
- 제 41 항에 있어서,상기 오버헤드 전극의 가스 공급 도입구; 및상기 가스 도입구와 상기 하나 이상의 제 1 세트의 가스 주입구 사이의 상기 오버헤드 전극내에 가스 배플링 층을 더 구비하는 플라즈마 반응기.
- 제 44 항에 있어서,상기 가스 배플링 층은 금속폼 층을 구비하는 플라즈마 반응기.
- 제 45 항에 있어서,상기 오버헤드 전극내에 열 제어 유체 통로들을 더 구비하는 플라즈마 반응기.
- 제 46 항에 있어서,상기 웨이퍼 지지부와 대개 대향하는 상기 오버헤드 전극내의 광학 윈도우, 및 상기 윈도우에 결합되며 상기 오버헤드 전극을 통하여 연장되는 광 반송 매체를 더 구비하는 플라즈마 반응기.
- 제 31 항에 있어서,상기 RF 전력 발생기 주파수와 상기 정합 엘리먼트 공진 주파수는 서로 그리고 상기 전극-플라즈마 공진 주파수로부터 각각 오프셋되는 플라즈마 반응기.
- 제 31 항에 있어서,상기 고정된 임피더스 정합 엘리먼트는 동축 튜닝 스터브를 구비하는 플라즈마 반응기.
- 제 31 항에 있어서,상기 고정된 임피던스 정합 엘리먼트는 스트립 라인 회로를 구비하는 플라즈마 반응기.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/007,367 | 2001-10-22 | ||
US10/007,367 US6894245B2 (en) | 2000-03-17 | 2001-10-22 | Merie plasma reactor with overhead RF electrode tuned to the plasma with arcing suppression |
PCT/US2002/030399 WO2003036680A1 (en) | 2001-10-22 | 2002-09-24 | Merie plasma reactor with showerhead rf electrode tuned to the plasma with arcing suppression |
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KR20040045913A KR20040045913A (ko) | 2004-06-02 |
KR100557273B1 true KR100557273B1 (ko) | 2006-03-07 |
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KR1020047006023A KR100557273B1 (ko) | 2001-10-22 | 2002-09-24 | 플라즈마에 튜닝되는 샤워헤드 rf 전극을 갖는 아킹 억제된 merie 플라즈마 반응기 |
Country Status (7)
Country | Link |
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US (3) | US6894245B2 (ko) |
EP (1) | EP1440456A1 (ko) |
JP (1) | JP2006502556A (ko) |
KR (1) | KR100557273B1 (ko) |
CN (1) | CN1314072C (ko) |
TW (1) | TW589680B (ko) |
WO (1) | WO2003036680A1 (ko) |
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KR20220084000A (ko) * | 2013-02-28 | 2022-06-21 | 노벨러스 시스템즈, 인코포레이티드 | 용량성 커플링된 플라즈마 반응기를 위한 무선주파수 전극이 임베디드된 세라믹 샤워헤드 |
KR20230079333A (ko) * | 2013-02-28 | 2023-06-07 | 노벨러스 시스템즈, 인코포레이티드 | 용량성 커플링된 플라즈마 반응기를 위한 무선주파수 전극이 임베디드된 세라믹 샤워헤드 |
KR102562923B1 (ko) * | 2013-02-28 | 2023-08-03 | 노벨러스 시스템즈, 인코포레이티드 | 용량성 커플링된 플라즈마 반응기를 위한 무선주파수 전극이 임베디드된 세라믹 샤워헤드 |
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Also Published As
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US20040211759A1 (en) | 2004-10-28 |
CN1599946A (zh) | 2005-03-23 |
WO2003036680A1 (en) | 2003-05-01 |
US6894245B2 (en) | 2005-05-17 |
US7132618B2 (en) | 2006-11-07 |
CN1314072C (zh) | 2007-05-02 |
KR20040045913A (ko) | 2004-06-02 |
EP1440456A1 (en) | 2004-07-28 |
US20050236377A1 (en) | 2005-10-27 |
JP2006502556A (ja) | 2006-01-19 |
US7186943B2 (en) | 2007-03-06 |
TW589680B (en) | 2004-06-01 |
US20030136766A1 (en) | 2003-07-24 |
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