KR101429806B1 - 다중 모드 플라즈마 발생 장치 - Google Patents
다중 모드 플라즈마 발생 장치 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 플라즈마 발생 장치를 도시한 도면이다.
도 3은 본 발명의 일 실시예에 따른 매칭부를 도시한 도면이다.
104 : 지지 부재 106 : 웨이퍼
108 : 공급관 110 : 제 1 플라즈마 발생부
112 : 제 2 플라즈마 발생부 200 : 플라즈마 챔버
204, 206 : 입구 210 : 제 1 전원부
212 : 제 2 전원부 214 : 매칭부
220 : 페라이트 코어 222 : 유도 코일
224 : 절연체 230 : 플라즈마 튜브
232 : 유도 코일
Claims (13)
- 공정 챔버로 플라즈마를 공급하는 플라즈마 발생 장치에 있어서,
제 1 플라즈마 발생부; 및
상기 제 1 플라즈마 발생부에 직렬로 연결된 제 2 플라즈마 발생부를 포함하되,
가스는 상기 제 1 플라즈마 발생부 및 상기 제 2 플라즈마 발생부에 의해 발생된 자기장에 의해 플라즈마로 변화되고, 상기 제 1 플라즈마 발생부는 제 1 주파수의 전원에 의해 동작하며, 상기 제 2 플라즈마 발생부는 제 2 주파수의 전원에 의해 동작하며, 상기 제 1 플라즈마 발생부의 사용 압력과 상기 제 2 플라즈마 발생부의 사용 압력이 다른 것을 특징으로 하는 다중 모드 플라즈마 발생 장치. - 제1항에 있어서, 상기 플라즈마 발생 장치는 성막 공정, 에칭 공정 및 세정 공정 중 적어도 2개의 공정을 위한 플라즈마를 생성하는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치.
- 제1항에 있어서, 상기 플라즈마 발생 장치는,
내부로 상기 가스 및 상기 플라즈마가 흐르는 플라즈마 챔버;
상기 제 1 플라즈마 발생부로 전원을 제공하는 제 1 전원부;
상기 제 2 플라즈마 발생부로 전원을 공급하는 제 2 전원부; 및
상기 제 2 전원부와 상기 제 2 플라즈마 발생부 사이의 임피던스를 정합시키는 매칭부를 더 포함하되,
상기 매칭부는 상기 제 2 플라즈마 발생부로 제공되는 전원(RF 신호)의 위상을 매칭시키는 제 1 캐패시터 및 상기 제 2 플라즈마 발생부로 제공되는 전원의 크기를 매칭시키는 제 2 캐패시터를 포함하며, 상기 제 1 캐패시터 및 상기 제 2 캐패시터는 인덕터를 기준으로 상호 병렬로 연결되는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치. - 제3항에 있어서, 상기 제 2 플라즈마 발생부로 상기 제 2 주파수의 전원을 제공함에 의해 점화되고, 상기 제 2 플라즈마 발생부에 의해 생성된 플라즈마가 상기 플라즈마 챔버의 내부로 확산되며, 상기 확산된 플라즈마에 의해 상기 제 1 플라즈마 발생부의 플라즈마 생성이 활성화되고, 상기 제 1 플라즈마 발생부를 위한 별도의 점화 소자가 상기 플라즈마 발생 장치에 형성되지 않는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치.
- 제3항에 있어서, 상기 플라즈마 챔버의 임피던스는 일정하지 않으며, 상기 매칭부는 상기 플라즈마 챔버의 임피던스를 고려하여 상기 캐패시터들의 캐패시턴스들을 결정하는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치.
- 제1항에 있어서, 상기 플라즈마 발생 장치는,
플라즈마 챔버를 더 포함하되,
상기 제 1 플라즈마 발생부는 상기 플라즈마 챔버의 중간 부분에서 페라이트 코어에 유도 코일이 감긴 형태로 실현되고, 상기 제 2 플라즈마 발생부는 상기 플라즈마 챔버의 종단 부분에서 플라스틱 튜브에 유도 코일이 감긴 형태로 실현되는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치. - 제6항에 있어서, 상기 플라즈마 챔버의 공간 중 상기 제 1 플라즈마 발생부에 해당하는 부분은 원형 형상의 공간이고, 상기 공간 중 상기 제 2 플라즈마 발생부에 해당하는 부분은 직선 형상의 공간이며, 상기 제 2 플라즈마 발생부의 후단은 상기 공정 챔버의 공급관으로 연결되는 것을 특징으로 하는 다중 모드 플라즈마 발생 장치.
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KR1020120005247A KR101429806B1 (ko) | 2012-01-17 | 2012-01-17 | 다중 모드 플라즈마 발생 장치 |
US14/373,001 US20150000844A1 (en) | 2012-01-17 | 2013-01-16 | Multiple-mode plasma generation apparatus |
PCT/KR2013/000315 WO2013109037A1 (ko) | 2012-01-17 | 2013-01-16 | 다중 모드 플라즈마 발생 장치 |
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KR101429806B1 true KR101429806B1 (ko) | 2014-08-12 |
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2012
- 2012-01-17 KR KR1020120005247A patent/KR101429806B1/ko active Active
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2013
- 2013-01-16 US US14/373,001 patent/US20150000844A1/en not_active Abandoned
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KR20000003482U (ko) * | 1998-07-24 | 2000-02-15 | 최대규 | 자동정합장치 |
KR20070061988A (ko) * | 2005-12-12 | 2007-06-15 | 위순임 | 다중 주파수 유도 코일을 갖는 페라이트 코어를 구비한플라즈마 발생기 및 이를 구비한 플라즈마 처리 장치 |
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