KR100750420B1 - 플라즈마 보조 처리 실행 방법 및 플라즈마 보조 처리실행 리액터 - Google Patents
플라즈마 보조 처리 실행 방법 및 플라즈마 보조 처리실행 리액터 Download PDFInfo
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Abstract
Description
Claims (26)
- 리액터 챔버내의 기판상에서 플라즈마 보조 처리를 실행하는 방법에 있어서,제 1 시간 주기 동안에 제 1 처리 가스를 상기 리액터 챔버내로 도입하고, 상기 제 1 시간 주기에 이어서 제 2 시간 주기 동안에 상기 제 1 처리 가스와 상이한 조성을 가진 제 2 처리 가스를 도입하는 단계와,상기 리액터 챔버내에 RF 전자장을 설정하고 상기 전자장을 상기 제 1 및 제 2 처리 가스와 상호작용하게 함으로써 상기 리액터 챔버내에 플라즈마를 형성하는 단계와,각각의 에너지 레벨 값이 상기 기판의 각각의 상이한 처리 프로세스의 실행과 관련되도록, 전자장이 상기 플라즈마를 유지하기에 각각 충분한 적어도 2개의 값 사이에서 주기적으로 변화하는 에너지 레벨을 갖도록 야기하는 단계를 포함하는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 야기 단계에 있어서, 상기 전자장의 에너지 레벨은 비사각형 파형 함수(non-square wave function)에 따라서 변화되게 되는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 야기 단계에 있어서, 상기 전자장의 에너지 레벨은 사인곡선 함수, 램프 함수(ramp function) 또는 단차형 함수에 따라서 변화되게 되는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 야기 단계에 있어서, 상기 전자장의 에너지 레벨은 상기 플라즈마를 유지하기에 각기 충분한 적어도 3개의 값중에서 변화되게 되는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 야기 단계에 있어서, 상기 전자장의 에너지 레벨은 각기 상이한 시간 간격 동안에 각기 상이한 반복 주기로 주기적으로 변화되게 되는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 프로세스 챔버내의 주기적으로 변화하는 가스 압력을 유지하는 단계를 더 포함하는플라즈마 보조 처리 실행 방법.
- 삭제
- 제 1 항에 있어서,상기 처리 가스중 다른 하나를 리액터 챔버로 도입하기 전에 상기 리액터 챔버로부터 이전에 도입된 상기 처리 가스중 하나의 전체를 제거하는 단계를 더 포함하는플라즈마 보조 처리 실행 방법.
- 제 8 항에 있어서,상기 전자장을 주기적으로 변화하도록 야기하는 상기 단계가, 상기 에너지 레벨이 상기 제 1 시간 주기의 동안에 2개의 값중 첫번째 것을 그리고 상기 제 2 시간 주기의 동안에 2개의 값중 두번째 것을 갖도록 실행되는플라즈마 보조 처리 실행 방법.
- 제 9 항에 있어서,상기 제 1 처리 가스 도입 단계와 제 2 처리 가스 도입 단계가 주기적인 방법으로 반복되는플라즈마 보조 처리 실행 방법.
- 제 10 항에 있어서,상기 각 시간 주기가 10msec보다 짧은 기간인플라즈마 보조 처리 실행 방법.
- 제 11 항에 있어서,상기 기판이 척상에 장착된 웨이퍼이며, RF 바이어스 전압을 척에 가하는 단계를 더 포함하는플라즈마 보조 처리 실행 방법.
- 제 12 항에 있어서,RF 바이어스 전압을 가하는 상기 단계가 2개의 값 사이에서 RF 바이어스 전압을 주기적으로 변화시키는 것을 포함하는플라즈마 보조 처리 실행 방법.
- 제 13 항에 있어서,상기 RF 바이어스 전압이 상기 RF 전자장 강도의 주기적 변화와 동시에 변화되는플라즈마 보조 처리 실행 방법.
- 제 10 항에 있어서,상기 제 1 처리 가스 도입 단계 및 제 2 처리 가스 도입 단계에 있어서, 각 처리 가스가 비사각형 파형 함수에 따라 변화하는 유동 속도로 도입되는플라즈마 보조 처리 실행 방법.
- 제 10 항에 있어서,상기 제 1 처리 가스 도입 단계 및 제 2 처리 가스 도입 단계에 있어서, 각 처리 가스가 사인곡선 함수, 램프 함수 또는 단차형 함수에 따라 변화하는 유동 속도로 도입되는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 제 2 시간 주기에 이어서 제 3 시간 주기 동안에 상기 제 1 및 제 2 처리 가스 각각과 상이한 조성을 가진 적어도 제 3 처리 가스를 도입하는 단계를 더 포함하는플라즈마 보조 처리 실행 방법.
- 제 1 항에 있어서,상기 프로세스 챔버내의 주기적으로 변화하는 가스 압력을 유지하는 단계를 더 포함하는플라즈마 보조 처리 실행 방법.
- 기판상에서 플라즈마 보조 처리를 실행하기 위한 리액터에 있어서,플라즈마 영역을 둘러싸는 챔버와,상기 플라즈마 영역에 바로 근접한 가스 분사 조립체로서, 제 1 시간 주기 동안에 제 1 처리 가스를 리액터 챔버내로 도입하고, 상기 제 1 시간 주기에 이어서 제 2 시간 주기 동안에 상기 제 1 처리 가스와 상이한 조성을 가진 제 2 처리 가스를 도입하도록 구성된, 상기 가스 분사 조립체와,RF 전자장을 플라즈마 영역 내에 생성하도록 구성된 RF 파워 공급원으로서, 상기 RF 전자장은 제 1 처리 가스와 제 2 처리 가스 중 적어도 하나와 상호작용하여 플라즈마를 생성하고, 상기 플라즈마를 유지하기에 각각 충분한 적어도 2개의 값 사이에서 주기적으로 변화하는 에너지 레벨을 갖는, 상기 RF 파워 공급원과,상기 플라즈마 영역과 연통되는 상기 챔버내에 기판을 지지하도록 구성된 지지 부재와,상기 플라즈마 영역과 연통되는 진공 펌프로서, 상기 플라즈마 영역내의 선택된 진공 압력을 유지하기 위한 속도로 처리 가스를 제거하는, 상기 진공 펌프를 포함하며;상기 가스 분사 조립체는 복수의 가스 분사 노즐이 마련되어 있는 가스 분사 플레이트와, 상기 노즐중 적어도 각기 하나에 제 1 처리 가스 또는 제 2 처리 가스 중 적어도 하나를 공급하도록 각각 구성된 복수의 가스 분사 밸브와, 상기 복수의 가스 분사 밸브에 연결되어 제 1 처리 가스 또는 제 2 처리 가스를 간헐적인 방법으로 상기 노즐의 각각에 공급되게 하는 복수의 밸브 제어기를 포함하는플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 지지 부재에 작동적으로 연결되고, 이온을 기판으로 유인하기 위해 직류 자체 바이어스(DC self-bias)를 발생시키도록 구성되는 RF 바이어스 전원을 더 포함하고, 상기 직류 자체 바이어스는 적어도 2개의 값 사이에서 주기적으로 변화하는 에너지 레벨을 갖는플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 복수의 밸브 제어기는 상기 챔버내로 제 1 및 제 2 처리 가스를 펄스 형태로 도입하도록 작동되는플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 복수의 가스 분사 밸브의 각각이 전자기 또는 압전 장치인플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 복수의 가스 분사 밸브 각각이 상기 복수의 가스 분사 노즐 중 각 단일의 하나에 가스를 공급하기 위해 연결된플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 복수의 가스 분사 밸브 각각이 상기 복수의 가스 분사 노즐 중 각각 다수에 가스를 공급하도록 연결된플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 복수의 가스 분사 노즐의 각각이 초음속 분사 노즐인플라즈마 보조 처리 실행 리액터.
- 제 19 항에 있어서,상기 가스 분사 플레이트가 복수의 배기 오리피스를 더 구비하며, 상기 배기 오리피스를 통해서 제 1 또는 제 2 처리 가스가 상기 플라즈마 영역으로부터 상기 진공 펌프까지 유동되는플라즈마 보조 처리 실행 리액터.
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- 2000-08-16 TW TW095111487A patent/TWI293769B/zh not_active IP Right Cessation
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2002
- 2002-02-15 US US10/076,099 patent/US7166233B2/en not_active Expired - Lifetime
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011105873A2 (ko) * | 2010-02-26 | 2011-09-01 | 성균관대학교산학협력단 | 펄스 플라즈마의 dc 파워 인가에 따른 동기화 제어 방법 |
WO2011105873A3 (ko) * | 2010-02-26 | 2012-01-12 | 성균관대학교산학협력단 | 펄스 플라즈마의 dc 파워 인가에 따른 동기화 제어 방법 |
KR20140096367A (ko) * | 2011-11-15 | 2014-08-05 | 램 리써치 코포레이션 | 하이브리드 펄싱 플라즈마 처리 시스템 |
KR102215308B1 (ko) * | 2011-11-15 | 2021-02-16 | 램 리써치 코포레이션 | 하이브리드 펄싱 플라즈마 처리 시스템 |
KR20150100522A (ko) * | 2014-02-24 | 2015-09-02 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 |
KR102356211B1 (ko) * | 2014-02-24 | 2022-01-27 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 |
KR101745686B1 (ko) * | 2014-07-10 | 2017-06-12 | 도쿄엘렉트론가부시키가이샤 | 기판의 고정밀 에칭을 위한 방법 |
US9768033B2 (en) | 2014-07-10 | 2017-09-19 | Tokyo Electron Limited | Methods for high precision etching of substrates |
KR20160028370A (ko) * | 2014-08-28 | 2016-03-11 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 |
KR102361782B1 (ko) * | 2014-08-28 | 2022-02-10 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 |
US11017987B2 (en) | 2017-08-18 | 2021-05-25 | Sony Semiconductor Solutions Corporation | Etching method and etching processing apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP1214459B1 (en) | 2009-01-07 |
CN1369021A (zh) | 2002-09-11 |
US20020160125A1 (en) | 2002-10-31 |
EP1214459A4 (en) | 2006-07-26 |
EP1214459A1 (en) | 2002-06-19 |
DE60041341D1 (de) | 2009-02-26 |
US7166233B2 (en) | 2007-01-23 |
WO2001012873A1 (en) | 2001-02-22 |
TW200629337A (en) | 2006-08-16 |
CN100371491C (zh) | 2008-02-27 |
ATE420454T1 (de) | 2009-01-15 |
TWI293769B (en) | 2008-02-21 |
JP4819267B2 (ja) | 2011-11-24 |
JP2003507880A (ja) | 2003-02-25 |
TWI267562B (en) | 2006-12-01 |
KR20020040775A (ko) | 2002-05-30 |
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