KR102480002B1 - 반도체 소자 및 그 제조방법, 그리고 패턴 형성 방법 - Google Patents
반도체 소자 및 그 제조방법, 그리고 패턴 형성 방법 Download PDFInfo
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- KR102480002B1 KR102480002B1 KR1020150134699A KR20150134699A KR102480002B1 KR 102480002 B1 KR102480002 B1 KR 102480002B1 KR 1020150134699 A KR1020150134699 A KR 1020150134699A KR 20150134699 A KR20150134699 A KR 20150134699A KR 102480002 B1 KR102480002 B1 KR 102480002B1
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Abstract
Description
도 1b는 도 1a의 A-A', B-B', 및 C-C'에 따른 단면도이다.
도 1c는 도 1a의 D-D', E-E', 및 F-F'에 따른 단면도이다.
도 2a는 도 1b의 H의 확대도이다.
도 2b는 도 1c의 I의 확대도이다.
도 3a 내지 도 9a는 본 발명의 일 실시예에 따른 반도체 소자의 제조방법을 설명하기 위한 사시도들이다.
도 3b 및 도 3c는 각각 도 3a의 Ⅰ-Ⅰ', Ⅱ-Ⅱ', Ⅲ-Ⅲ', 및 Ⅳ-Ⅳ'에 따른 단면도들이다.
도 4b 내지 도 9b는 각각 도 4a 내지 도 9a의 A-A', B-B, 및 C-C'에 따른 단면도들이다.
도 4c 내지 도 9c는 각각 도 4a 내지 도 9a의 D-D', E-E', 및 F-F'에 따른 단면도들이다.
도 10a 및 도 10b는, 본 발명의 일 실시예에 따른 반도체 소자를 보여주는 도면이다.
Claims (20)
- 제 1 영역 및 제 2 영역을 포함하는 기판을 제공하는 것;
상기 제 1 영역의 상기 기판으로부터 돌출되는 제 1 활성 패턴 및 상기 제 2 영역의 상기 기판으로부터 돌출되는 제 2 활성 패턴을 형성하는 것;
상기 제 1 활성 패턴을 가로지르고, 제 1 간격으로 서로 이격되는 제 1 게이트 구조체들, 및 상기 제 2 활성 패턴을 가로지르고, 제 2 간격으로 서로 이격되는 제 2 게이트 구조체들을 형성하는 것;
상기 제 1 및 제 2 게이트 구조체들 및 상기 제 1 및 제 2 활성 패턴들을 덮는 코팅막을 형성하는 것;
상기 제 1 게이트 구조체들 사이의 상기 제 1 활성 패턴 내에 제 1 리세스 영역 및 상기 제 2 게이트 구조체들 사이의 상기 제 2 활성 패턴 내에 제 2 리세스 영역을 형성하는 것; 그리고
상기 제 1 및 제 2 리세스 영역들을 채우는 소스/드레인 에피택시얼층을 형성하는 것을 포함하되,
상기 코팅막을 형성하는 것은, 상기 제 1 게이트 구조체들 및 상기 제 1 활성 패턴 상에는 상기 코팅막을 제 1 두께로 형성하고, 상기 제 2 게이트 구조체들 및 상기 제 2 활성 패턴 상에는 상기 코팅막을 상기 제 1 두께와 상이한 제 2 두께로 형성하는 것을 포함하고,
상기 제 1 및 제 2 게이트 구조체들을 형성하는 것은:
상기 제 1 활성 패턴을 가로지르는 제 1 희생 게이트 패턴 및 상기 제 2 활성 패턴을 가로지르는 제 2 희생 게이트 패턴을 형성하는 것; 및
상기 제 1 희생 게이트 패턴의 측벽들 상에 제 1 스페이서 부 및 상기 제 2 희생 게이트 패턴의 측벽들 상에 제 2 스페이서 부를 형성하는 것을 포함하되,
상기 제 1 및 제 2 스페이서 부들을 형성하는 것은, 상기 제 1 및 제 2 희생 게이트 패턴들의 외측벽 상에 게이트 스페이서막을 형성하는 것; 및
상기 게이트 스페이서막 상에 스페이서 희생막을 형성하는 것을 포함하는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 제 1 간격은 상기 제 2 간격보다 크고, 상기 제 1 두께는 상기 제 2 두께보다 두꺼운, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 코팅막은 실리콘 화합물을 포함하는, 반도체 소자의 제조 방법. - 제 3 항에 있어서,
상기 코팅막은 1mTorr 내지 100mTorr의 압력 조건 하에서 형성되는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 코팅막을 형성하는 것 및 상기 제 1 및 제 2 리세스 영역들을 형성하는 것을, 반복하여 진행하는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 제 1 리세스 영역 및 상기 제 2 리세스 영역은 실질적으로 서로 동일한 깊이를 갖도록 형성하는, 반도체 소자의 제조 방법. - 삭제
- 제 1 항에 있어서,
상기 게이트 스페이서막은 질화물을 포함하고, 상기 스페이서 희생막은 산화물을 포함하는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 제 1 및 제 2 리세스 영역들의 형성 후에, 상기 스페이서 희생막을 제거하는 것을 더 포함하는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 제 1 및 제 2 게이트 구조체들을 형성하는 것은, 상기 제 1 및 제 2 스페이서 부들 형성 전에 상기 제 1 및 제 2 희생 게이트 패턴들 상에 하드 마스크막을 형성하는 것을 더 포함하는, 반도체 소자의 제조 방법. - 제 1 항에 있어서,
상기 제 1 영역은 로직 반도체 소자를 포함하고, 상기 제 2 영역은 입출력 반도체 소자를 포함하는, 반도체 소자의 제조 방법.
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