KR20210024893A - 반도체 소자 제조 방법 - Google Patents
반도체 소자 제조 방법 Download PDFInfo
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- KR20210024893A KR20210024893A KR1020190104647A KR20190104647A KR20210024893A KR 20210024893 A KR20210024893 A KR 20210024893A KR 1020190104647 A KR1020190104647 A KR 1020190104647A KR 20190104647 A KR20190104647 A KR 20190104647A KR 20210024893 A KR20210024893 A KR 20210024893A
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Abstract
Description
도 2a는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 개략적인 단면도이다.
도 2b는 도 2a의 일부를 확대 도시한 부분 단면도이다.
도 3 내지 도 6은 일부 실시예들에 따른 반도체 소자의 제조 방법을 설명하기 위한 단면도들로서, 각각 도 2b에 대응되는 부분 단면도들이다.
도 7a는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 개략적인 단면도이다.
도 7b는 도 7a의 일부를 확대 도시한 부분 단면도이다.
도 8은 일부 실시예들에 따른 반도체 소자의 제조 방법을 설명하기 위한 부분 단면도이다.
도 9a 및 도 9b는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 단면도들이다,
도 10은 다른 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 순서도이다.
도 11 내지 도 15b는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 단면도들이다.
도 16은 다른 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 순서도이다.
도 17 내지 도 19c는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 단면도들이다.
도 20은 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 순서도이다.
도 21 내지 도 27b는 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 단면도들이다.
도 28은 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 순서도이다.
도 29 내지 도 33은 일부 실시예들에 따른 반도체 소자 제조 방법을 설명하기 위한 단면도들이다.
141: 배리어 도전층 141p: 배리어 도전성 패턴
145: 도전층 145p: 도전성 패턴
150: 제4 절연층, 150p: 절연 패턴
160: 커버 도전층, 160p: 커버 도전성 패턴
Op1, Op2, Op3, Op4: 개구
Claims (10)
- 기판 상에 제1, 제2 및 제3 절연층들을 순차적으로 형성하는 단계;
상기 제1, 제2 및 제3 절연층들을 식각하여 개구를 형성하는 단계;
상기 개구를 부분적으로 채우는 도전층을 형성하는 단계;
상기 개구의 적어도 일부를 채우는 제4 절연층을 형성하는 단계; 및
상기 기판의 가장자리의 적어도 일부를 제거하는 트리밍 단계를 포함하는 반도체 소자 제조방법. - 제1항에 있어서,
상기 트리밍 단계는,
상기 기판의 가장자리의 적어도 일부를 제거한 후 산 베이스 용액을 이용하여 상기 기판을 세정하는 것을 특징으로 하는 반도체 소자 제조방법. - 제1항에 있어서,
상기 제4 절연층은 상기 제2 절연층과 동일한 물질을 포함하는 것을 특징으로 하는 반도체 소자 제조방법. - 제1항에 있어서,
상기 제4 절연층을 형성하는 단계 이전에, 상기 도전층의 일부를 제거하여 도전성 패턴을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자 제조방법. - 제4항에 있어서,
상기 도전성 패턴의 상면이 노출되도록 CMP(Chemical Mechanical Polishing)를 수행하는 단계를 더 포함하는 것을 특징으로 반도체 소자 제조 방법. - 제5항에 있어서,
상기 CMP에 의해 상기 제4 절연층 중 적어도 일부는 상기 제2 절연층의 상부와 동시에 제거되는 것을 특징으로 하는 반도체 소자 제조 방법. - 제5항에 있어서,
상기 CMP는 상기 제2 절연층을 설정된 양만큼 식각하는 것을 타겟으로 수행되는 것을 특징으로 하는 반도체 소자 제조 방법. - 제1 기판의 제1 면 상에 순차로 제1 내지 제3 절연층들을 형성하는 단계;
상기 제1 내지 제3 절연층들을 식각하여 복수의 개구들을 형성하는 단계;
상기 제1 내지 제3 절연층들 상에 콘포말한 형상의 배리어 도전층을 형성하는 단계;
상기 복수의 개구들의 적어도 일부를 채우고, 상기 배리어 도전층과 접하는 도전층을 형성하는 단계;
상기 도전층의 일부를 제거하여 도전성 패턴을 형성하는 단계;
상기 도전 패턴 및 상기 배리어 도전층 상에 제4 절연층을 형성하는 단계로서, 상기 제4 절연층은 상기 도전 패턴 및 상기 배리어 도전층에 접하고, 상기 제4 절연층의 상면은 상기 제3 절연층의 상면보다 상기 기판으로부터 멀리 이격되고;
상기 기판의 가장자리의 적어도 일부를 제거하고 상기 기판을 세정하는 단계;
상기 도전성 패턴의 상면이 노출되도록 CMP를 수행하는 단계;
상기 제1 기판을 제2 기판에 결합시키는 단계; 및
상기 제1 기판의 상기 제1 면과 대향하는 제2 면을 그라인드하는 단계;를 포함하는 반도체 소자 제조 방법. - 제8항에 있어서,
상기 제4 절연층은 상기 제2 절연층과 동일한 물질을 포함하는 것을 특징으로 하는 반도체 소자 제조 방법. - 제1 기판을 포함하는 제1 반도체 구조에 제1 후면 배선 구조를 제공하는 단계;
제2 기판을 포함하는 제2 반도체 구조에 제1 전면 배선 구조를 제공하는 단계; 및
상기 제1 반도체 구조 상에 상기 제2 반도체 구조를 실장하는 단계;를 포함하되,
상기 제2 반도체 구조에 제1 전면 배선 구조를 제공하는 단계는,
상기 제2 기판 상에 제1 내지 제3 절연층들을 형성하는 단계;
제1 개구들이 형성되도록, 상기 제1 내지 제3 절연층들을 식각하는 단계;
상기 제1 개구들을 부분적으로 채우는 제1 배리어 도전층 및 제1 도전층을 형성하는 단계;
상기 제1 도전층의 상부를 제거하여 제1 도전 패턴들을 형성하는 단계;
상기 제1 도전 패턴들 및 상기 제1 배리어 도전층을 커버하는 제4 절연층을 제공하는 단계; 및
상기 제2 기판의 에지부의 적어도 일부를 제거하는 제1 트리밍 단계를 포함하는 반도체 소자 제조 방법.
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