KR20080047294A - 반도체 장치 제조 방법 및 그에 의해 제조되는 제품 - Google Patents
반도체 장치 제조 방법 및 그에 의해 제조되는 제품 Download PDFInfo
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- KR20080047294A KR20080047294A KR1020070120083A KR20070120083A KR20080047294A KR 20080047294 A KR20080047294 A KR 20080047294A KR 1020070120083 A KR1020070120083 A KR 1020070120083A KR 20070120083 A KR20070120083 A KR 20070120083A KR 20080047294 A KR20080047294 A KR 20080047294A
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
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Abstract
Description
Claims (18)
- 반도체 기판과, 반도체 기판과 다른 밴드 갭 폭을 갖는 반도체 재료로 형성되고 반도체 기판과 이종 결합된 이종 반도체 영역과, 반도체 기판 및 이종 반도체 영역의 이종 접합부와 접속하는 게이트 절연 층과, 게이트 절연 층 상에 형성된 게이트 전극과, 게이트 절연 층과 접속하는 이종 접합부의 이종 접합부 구동 단부로부터 소정의 거리만큼 이격되어, 반도체 기판 및 게이트 절연 층과 접속하는 제1 전기장 경감 영역과, 이종 반도체 영역과 접속하는 소스 전극과, 반도체 기판과 접속하는 드레인 전극을 포함하는 반도체 장치를 제조하는 방법이며,이종 반도체 영역 상에 제1 마스크 층을 형성하는 단계와,제1 마스크 층의 적어도 일 부분을 사용하여 제1 전기장 경감 영역 및 이종 접합부 구동 단부를 형성하는 단계를 포함하는 반도체 장치 제조 방법.
- 제1항에 있어서,제1 전기장 경감 영역이 형성되어 있을 때, 이온 주입 공정을 통해 제1 마스크 층에 의해 덮이지 않은 반도체 기판의 부분 내에 불순물을 주입하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제2항에 있어서,제1 전기장 경감 영역이 형성되어 있을 때, 불순물을 활성화하는 열처리 공 정을 수행하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제1항에 있어서, 반도체 장치는 반도체 기판 및 이종 반도체 영역과 접속하고, 이종 접합부 구동 단부로부터 소정의 거리만큼 이격된 제2 전기장 경감 영역을 더 포함하고,방법은 제1 마스크 층을 사용하여 제2 전기장 경감 영역을 형성하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제4항에 있어서,제2 전기장 경감 영역과 접속하는 이종 반도체 영역을 덮도록 이종 반도체 영역 상에 제2 마스크 층을 형성하는 단계를 더 포함하고,이종 접합부 구동 단부를 형성하는 단계는 제1 및 제2 마스크 층을 사용하여 이종 접합부 구동 단부를 형성하는 단계를 포함하는 반도체 장치 제조 방법.
- 제5항에 있어서, 제1 마스크 층의 재료는 제2 마스크 층의 재료와 다른 반도체 장치 제조 방법.
- 제1항에 있어서, 이종 접합부 구동 단부를 형성하는 단계는, 제1 마스크 층의 적어도 일 부분이 등방성으로 제거된 후에 이종 접합부 구동 단부를 형성하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제1항에 있어서, 반도체 기판은 실리콘 카바이드, 다이아몬드, 및 질화갈륨 중 적어도 하나를 포함하는 반도체 장치 제조 방법.
- 제1항에 있어서, 이종 반도체 영역은 단결정 실리콘, 다결정 실리콘, 및 무정형 실리콘 중 적어도 하나를 포함하는 반도체 장치 제조 방법.
- 제1항에 따른 반도체 장치 제조 방법에 의해 제조되는 반도체 장치.
- 반도체 기판과, 반도체 기판과 다른 밴드 갭 폭을 갖는 반도체 재료로 형성되고 반도체 기판과 이종 결합된 이종 반도체 영역과, 반도체 기판 및 이종 반도체 영역의 이종 접합부와 접속하는 게이트 절연 층과, 게이트 절연 층 상에 형성된 게이트 전극과, 게이트 절연 층과 접속하는 이종 접합부의 이종 접합부 구동 단부로부터 소정의 거리만큼 이격되어, 반도체 기판 및 이종 반도체 영역과 접속하는 제2 전기장 경감 영역과, 이종 반도체 영역과 접속하는 소스 전극과, 반도체 기판과 접속하는 드레인 전극을 포함하는 반도체 장치를 제조하는 방법이며,이종 반도체 영역 상에 제1 마스크 층을 형성하는 단계와,제1 마스크 층의 적어도 일 부분을 사용함으로써 제2 전기장 경감 영역 및 이종 접합부 구동 단부를 형성하는 단계를 포함하는 반도체 장치 제조 방법.
- 제11항에 있어서,이종 반도체 영역 상에, 제2 전기장 경감 영역과 접속하지 않는 이종 반도체 영역의 부분을 제1 마스크 층과 함께 덮는 제3 마스크 층을 형성하는 단계와,이종 반도체 영역 상에, 제2 전기장 경감 영역과 접속하는 이종 반도체 영역의 부분을 덮는 제2 마스크 층을 형성하는 단계를 더 포함하고,제2 전기장 경감 영역을 형성하는 단계는 제1 및 제3 마스크 층을 사용하여 제2 전기장 경감 영역을 형성하는 단계를 포함하고,이종 접합부 구동 단부를 형성하는 단계는 제1 및 제2 마스크 층을 사용하여 이종 접합부 구동 단부를 형성하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제12항에 있어서, 제2 마스크 층의 재료 및 제3 마스크 층의 재료 중 적어도 하나는 제1 마스크 층의 재료와 다른 반도체 장치 제조 방법.
- 제11항에 있어서,제2 전기장 경감 영역이 형성되어 있을 때, 이온 주입 공정을 통해 제1 마스크 층에 의해 덮이지 않은 반도체 기판의 부분 내에 불순물을 주입하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제14항에 있어서,제2 전기장 경감 영역이 형성되어 있을 때, 불순물을 활성화하는 열처리 공 정을 수행하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제15항에 있어서,이종 접합부 구동 단부가 형성되어 있을 때, 제1 마스크 층에 의해 덮인 반도체 기판의 부분을 등방성으로 제거하는 공정을 수행하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제16항에 있어서, 등방성 제거 공정을 수행하는 단계는 희생 산화를 수행하는 단계를 더 포함하는 반도체 장치 제조 방법.
- 제11항에 따른 반도체 장치 제조 방법에 의해 제조되는 반도체 장치.
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WO2015009514A1 (en) | 2013-07-19 | 2015-01-22 | Transphorm Inc. | Iii-nitride transistor including a p-type depleting layer |
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