KR102099841B1 - 선택적 에피택셜 성장된 iii-v족 재료 기반 디바이스 - Google Patents
선택적 에피택셜 성장된 iii-v족 재료 기반 디바이스 Download PDFInfo
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- KR102099841B1 KR102099841B1 KR1020157032315A KR20157032315A KR102099841B1 KR 102099841 B1 KR102099841 B1 KR 102099841B1 KR 1020157032315 A KR1020157032315 A KR 1020157032315A KR 20157032315 A KR20157032315 A KR 20157032315A KR 102099841 B1 KR102099841 B1 KR 102099841B1
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Abstract
Description
도 2는 도 1과 유사한 단면도로서, 일 실시예에 따라 기판 상에 제1 버퍼층이 퇴적된 이후의 도면이다.
도 3은 도 2와 유사한 단면도로서, 일 실시예에 따라 제1 버퍼층 상에 제2 버퍼층이 퇴적된 이후의 도면이다.
도 4는 도 3과 유사한 단면도로서, 일 실시예에 따라 제2 버퍼층 상에 디바이스층이 퇴적된 이후의 도면이다.
도 5는 도 4와 유사한 단면도로서, 일 실시예에 따라 디바이스층 상에 얇은 캡층이 선택적으로 성장된 이후의 도면이다.
도 6은 도 5와 유사한 단면도로서, 일 실시예에 따라 디바이스층 상에 고농도 도핑된 층이 퇴적된 이후의 도면이다.
도 7은 도 6과 유사한 단면도로서, 일 실시예에 따라 디바이스의 게이트 영역으로부터 고농도 도핑된 소스/드레인층이 제거된 이후의 도면이다.
도 8은 도 7과 유사한 단면도로서, 일 실시예에 따라 디바이스 핀이 형성된 이후의 도면이다.
도 9는 도 8과 유사한 단면도로서, 일 실시예에 따라 제1 버퍼층의 일부의 측벽들에 인접한 절연층 상에 절연층이 퇴적된 이후의 도면이다.
도 10은 도 9와 유사한 단면도로서, 일 실시예에 따라 핀 상에 게이트 유전체층과 게이트 전극층이 퇴적된 이후의 도면이다.
도 11은 일 실시예에 따른 도 6에 도시된 바와 같은 다층 스택의 사시도이다.
도 12는 일 실시예에 따른 도 10에 도시된 바와 같은 트라이-게이트 트랜지스터의 일부의 사시도이다.
도 13은 일 실시예에 따라 캐리어들의 홀 이동도 대 InGaAs 채널 두께를 나타내는 예시적인 그래프이다.
도 14는 일 실시예에 따라 유효 전자 질량(m0) 대 In 함유량(%)을 나타내는 예시적인 그래프이다.
도 15는 일 실시예에 따라 InGaAs 내의 인듐 함유량 대 격자 상수를 나타내는 예시적인 그래프이다.
도 16은 일 실시예에 따른 컴퓨팅 디바이스(1600)를 예시한다.
Claims (24)
- III-V족 재료 기반 디바이스를 제조하기 위한 방법으로서,
실리콘 기판 상의 절연층 내에 트렌치를 형성하는 단계;
상기 실리콘 기판 상의 상기 트렌치 내에 제1 III-V족 재료 기반 버퍼층을 퇴적하는 단계;
상기 제1 III-V족 재료 기반 버퍼층 상에 제2 III-V족 재료 기반 버퍼층을 퇴적하는 단계; 및
상기 제2 III-V족 재료 기반 버퍼층 상에 III-V족 재료 기반 디바이스 채널층을 퇴적하는 단계
를 포함하고,
상기 제1 III-V족 재료 기반 버퍼층은 상기 실리콘 기판의 격자 파라미터와 상기 III-V족 재료 기반 디바이스 채널층의 격자 파라미터 사이의 격자 파라미터를 갖고,
상기 제2 III-V족 재료 기반 버퍼층의 일부 및 상기 III-V족 재료 기반 디바이스 채널층은 상기 절연층의 상부 표면으로부터 돌출되는, 방법. - 제1항에 있어서,
상기 제2 III-V족 재료 기반 버퍼층은 상기 III-V족 재료 기반 디바이스 채널층의 격자 파라미터와 매칭되는 격자 파라미터를 갖는, 방법. - 삭제
- 제1항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층 상에 캡층을 퇴적하는 단계를 더 포함하는, 방법. - 삭제
- 제1항에 있어서,
상기 제1 III-V족 재료 기반 버퍼층의 일부 상의 상기 제2 III-V족 재료 기반 버퍼층 상에 상기 III-V족 재료 기반 디바이스 채널층을 포함하는 핀을 형성하는 단계; 및
상기 핀 상에 게이트 유전체층을 퇴적하는 단계를 더 포함하는, 방법. - 제1항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층 위에 도핑된 III-V족 재료 기반층을 퇴적하는 단계를 더 포함하는, 방법. - III-V족 재료 기반 디바이스로서,
실리콘 기판 상의 절연층 내의 트렌치;
상기 실리콘 기판 상의 상기 트렌치 내에 퇴적되는 제1 III-V족 재료 기반 버퍼층;
상기 제1 III-V족 재료 기반 버퍼층 상의 제2 III-V족 재료 기반 버퍼층; 및
상기 제2 III-V족 재료 기반 버퍼층 상의 III-V족 재료 기반 디바이스 채널층
을 포함하고,
상기 제1 III-V족 재료 기반 버퍼층은 상기 실리콘 기판의 격자 파라미터와 상기 III-V족 재료 기반 디바이스 채널층의 격자 파라미터 사이의 격자 파라미터를 갖고,
상기 제2 III-V족 재료 기반 버퍼층의 일부 및 상기 III-V족 재료 기반 디바이스 채널층은 상기 절연층의 상부 표면으로부터 돌출되는, III-V족 재료 기반 디바이스. - 제8항에 있어서,
상기 제2 III-V족 재료 기반 버퍼층은 상기 III-V족 재료 기반 디바이스 채널층의 격자 파라미터와 매칭되는 격자 파라미터를 갖는, III-V족 재료 기반 디바이스. - 삭제
- 제8항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층 상에 캡층이 퇴적되는, III-V족 재료 기반 디바이스. - 삭제
- 제8항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층, 상기 제2 III-V족 재료 기반 버퍼층, 및 상기 제1 III-V족 재료 기반 버퍼층으로부터 핀이 형성되는, III-V족 재료 기반 디바이스. - 제8항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층의 일부 위에 도핑된 III-V족 재료 기반층을 더 포함하는, III-V족 재료 기반 디바이스. - 제8항에 있어서,
상기 III-V족 재료 기반 디바이스 채널층 내의 인듐의 농도는 적어도 53%인, III-V족 재료 기반 디바이스. - 전자 디바이스를 제조하기 위한 방법으로서,
기판 상의 절연층 내의 트렌치 내에 제1 버퍼층을 퇴적하는 단계;
상기 제1 버퍼층 상에 제2 버퍼층을 퇴적하는 단계; 및
상기 제2 버퍼층 상에 디바이스층을 퇴적하는 단계 - 상기 제2 버퍼층은 상기 디바이스층의 격자 파라미터와 매칭되는 격자 파라미터를 가짐 -
를 포함하고,
상기 제1 버퍼층은 상기 기판의 격자 파라미터와 상기 디바이스층의 격자 파라미터 사이의 격자 파라미터를 갖고,
상기 제2 버퍼층의 일부 및 상기 디바이스층은 상기 절연층의 상부 표면으로부터 돌출되는, 방법. - 삭제
- 제16항에 있어서,
상기 제1 버퍼층, 상기 제2 버퍼층, 및 상기 디바이스층 중 적어도 하나는 III-V족 재료 기반 층이고, 상기 기판은 실리콘 기판인, 방법. - 제16항에 있어서,
상기 디바이스층 상에 캡층이 퇴적되는, 방법. - 제16항에 있어서,
상기 제1 버퍼층, 상기 제2 버퍼층 및 상기 디바이스층 중 적어도 하나는 CVD에 의해 퇴적되는, 방법. - 집적 회로 구조체로서,
단결정 실리콘을 포함하는 기판;
상기 기판 상의 절연층 - 상기 절연층은 실리콘 및 산소를 포함하고, 상기 절연층은 상기 기판의 단결정 실리콘 표면을 노출시키는 트렌치를 내부에 가짐 -;
상기 트렌치 내의 그리고 상기 기판의 단결정 실리콘 표면 상의 제1 버퍼층 - 상기 제1 버퍼층은 인듐 및 인(phosphorous)을 포함함 -;
상기 트렌치 내의 그리고 상기 제1 버퍼층 상의 제2 버퍼층 - 상기 제2 버퍼층은 인듐, 갈륨, 비소 및 안티몬을 포함함 -; 및
상기 제2 버퍼층 상의 디바이스 채널층 - 상기 디바이스 채널층은 인듐, 갈륨 및 비소를 포함하고, 상기 디바이스 채널층은 상부 및 측벽들을 가짐 -
을 포함하고,
상기 제1 버퍼층은 상기 기판의 격자 파라미터와 상기 디바이스 채널층의 격자 파라미터 사이의 격자 파라미터를 갖고,
상기 제2 버퍼층의 일부 및 상기 디바이스 채널층은 상기 절연층의 상부 표면으로부터 돌출되는 집적 회로 구조체. - 제21항에 있어서,
상기 디바이스 채널층의 상기 상부 및 측벽들 상의 게이트 전극 및 게이트 유전체층을 더 포함하는 집적 회로 구조체. - 제21항에 있어서,
상기 디바이스 채널층은 트랜지스터 채널층인 집적 회로 구조체. - 제21항에 있어서,
상기 디바이스 채널층은 적어도 53%의 인듐의 농도를 갖는 집적 회로 구조체.
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GB201520312D0 (en) | 2015-12-30 |
GB2530195A (en) | 2016-03-16 |
TWI646583B (zh) | 2019-01-01 |
TW201513175A (zh) | 2015-04-01 |
CN110323268A (zh) | 2019-10-11 |
TWI541867B (zh) | 2016-07-11 |
US20170194142A1 (en) | 2017-07-06 |
RU2015151123A (ru) | 2017-06-07 |
US20190088747A1 (en) | 2019-03-21 |
CN105308719B (zh) | 2019-07-26 |
TW201631636A (zh) | 2016-09-01 |
CN105308719A (zh) | 2016-02-03 |
DE112013007031T5 (de) | 2016-02-04 |
US9640622B2 (en) | 2017-05-02 |
GB2530195B (en) | 2018-12-12 |
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