KR100378186B1 - 원자층 증착법으로 형성된 박막이 채용된 반도체 소자 및그 제조방법 - Google Patents
원자층 증착법으로 형성된 박막이 채용된 반도체 소자 및그 제조방법 Download PDFInfo
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Abstract
Description
Claims (20)
- 내부에 트랜치가 형성된 반도체 기판;상기 트랜치 내벽 및 바닥 상에 형성되고, 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막으로 형성된 라이너막;상기 트랜치에 보이드 없이 매몰된 매몰 절연막;상기 트랜치 및 매몰 절연막이 형성되어 있는 반도체 기판 상에 형성된 게이트 스택 패턴들;상기 게이트 스택 패턴들의 양측벽에 형성된 게이트 스페이서;상기 게이트 스페이서 상에 형성된 제1 버블방지막;상기 게이트 스페이서 상의 게이트 스택 패턴들 사이를 매립하는 제1 매립 절연막;상기 제1 매립 절연막 상에 형성된 비트라인 스택 패턴들;상기 비트 라인 스택 패턴들의 양측벽에 형성된 비트라인 스페이서;상기 비트 라인 스페이서 및 비트 라인 스택 패턴들 상에 형성된 제2 버블방지막; 및상기 제2 버블방지막 사이의 비트라인 스택 패턴들을 매립하는 제2 매립 절연막을 포함하여 이루어지는 것을 특징으로 하는 반도체 소자.
- 제1항에 있어서, 상기 제1 버불 방지막은 원자층 증착법에 의하여 실리콘 산화막과 실리콘 질화막의 다중막으로 형성되어 있어 상기 제1 매립 절연막은 상기 제1 버블방지막 상의 상기 게이트 스택 패턴들의 사이를 보이드 없이 매립되어 있는 것을 특징으로 하는 반도체 소자.
- 제2항에 있어서, 상기 게이트 스페이서는 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 것을 특징으로 하는 반도체 소자.
- 제2항에 있어서, 상기 제2 버블 방지막은 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성되어 제2 매립 절연막은 상기 제2 버블 방지막 사이의 비트라인 스택 패턴들 사이를 보이드 없이 매립되어 있는 것을 특징으로 하는 반도체 소자.
- 제4항에 있어서, 상기 비트 라인 스페이서는 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 것을 특징으로 하는 반도체 소자.
- 내부에 트랜치가 형성된 반도체 기판;상기 트랜치 내벽 및 바닥에 형성된 라이너막;상기 트랜치에 매몰된 매몰 절연막;상기 반도체 기판 상에 형성된 게이트 스택 패턴들;상기 게이트 스택 패턴들의 양측벽에 형성된 게이트 스페이서;상기 게이트 스페이서 상에 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 제1 버블방지막;상기 게이트 스페이서 상의 게이트 스택 패턴들 사이를 매립하는 제1 매립 절연막;상기 제1 매립 절연막 상에 형성된 비트라인 스택 패턴들;상기 비트 라인 스택 패턴들의 양측벽에 형성된 비트라인 스페이서;상기 비트 라인 스페이서 및 비트 라인 스택 패턴들 상에 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 제2 버블방지막; 및상기 제2 버블방지막 사이의 비트라인 스택 패턴들을 보이드 없이 매립되어 있는 제2 매립 절연막을 포함하여 이루어지는 것을 특징으로 하는 반도체 소자.
- 제6항에 있어서, 상기 라이너막과, 상기 게이트 스페이서 및 비트 라인 스페이서는 각각 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막, 및 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 것을 특징으로 하는 반도체 소자.
- 반도체 기판에 일정 깊이로 트랜치를 형성하는 단계;상기 트랜치 내벽 및 바닥 상에 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막으로 형성된 라이너막을 형성하는 단계;상기 트랜치를 보이드 없이 매립하는 매몰 절연막을 형성하는 단계;상기 트랜치 및 매몰 절연막이 형성된 반도체 기판 상에 게이트 스택 패턴들을 형성하는 단계;상기 게이트 스택 패턴들의 양측벽에 게이트 스페이서를 형성하는 단계;상기 게이트 스페이서 및 게이트 스택 패턴들 상에 제1 버블 방지막을 형성하는 단계;상기 제1 버블방지막 상의 상기 게이트 스택 패턴들의 사이를 제1 매립 절연막으로 매립하는 단계;상기 제1 매립 절연막 상에 비트라인 스택 패턴들을 형성하는 단계;상기 비트 라인 스택 패턴들의 양측벽에 비트라인 스페이서를 형성하는 단계;상기 비트 라인 스페이서 및 비트 라인 스택 패턴들 상에 제2 버블방지막을 형성하는 단계; 및상기 제2 버블방지막 상의 비트 라인 스택 패턴 사이를 제2 매립 절연막으로 매립하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제8항에 있어서, 상기 라이너막은 진공 브레이크 없이 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제8항에 있어서, 상기 라이너막을 구성하는 실리콘 질화막은 사일렌, 실리콘 알킬(Si-alkyl), 실리콘 할라이드(Si-halide) 또는 실리콘 아미드(Si-amide)의 실리콘 소스와, 암모니아, 플라즈마 암모니아 또는 플라즈마 질소의 질화제를 이용하여 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제8항에 있어서, 상기 라이너막을 구성하는 실리콘 산화막은 사일렌, 실리콘 알콕사이드(Si-alkoxide), 실리콘 알킬(Si-alkyl), 실리콘 할라이드(Si-halide) 또는 실리콘 아미드(Si-amide)의 실리콘 소스와, 수증기, 과산화수소, 오존, 플라즈마 산소(plasma O2), 산화 질소(N2O) 또는 플라즈마 산화질소(plasma N2O)의 산화제를 이용하여 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제8항에 있어서, 상기 제1 버블 방지막은 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성하여 상기 제1 버블 방지막 상의 상기 게이트 스택 패턴들의 사이를 보이드 없이 제1 매립 절연막으로 매립하는 것을 특징으로 하는 반체 소자의 제조방법.
- 제12항에 있어서, 상기 제1 버블 방지막은 진공 브레이크 없이 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제12항에 있어서, 상기 게이트 스페이서는 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막으로 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제12항에 있어서, 상기 제2 버블 방지막은 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성하여 상기 제2 버블방지막 상의 비트 라인 스택 패턴 사이를 보이드 없이 제2 매립 절연막으로 매립하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제14항에 있어서, 상기 제2 버블 방지막은 진공 브레이크 없이 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제15항에 있어서, 상기 비트 라인 스페이서는 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막으로 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 반도체 기판에 일정 깊이로 트랜치를 형성하는 단계;상기 트랜치 내벽 및 바닥 상에 라이너막을 형성하는 단계; 및상기 트랜치를 매립하는 매몰 절연막을 형성하는 단계;상기 트랜치 및 매몰 절연막이 형성된 반도체 기판 상에 게이트 스택 패턴들을 형성하는 단계;상기 게이트 스택 패턴들의 양측벽에 게이트 스페이서를 형성하는 단계;상기 게이트 스페이서 및 게이트 스택 패턴들 상에 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 제1 버블 방지막을 형성하는 단계;상기 제1 버블방지막 상의 상기 게이트 스택 패턴들의 사이를 보이드 없이 제1 매립 절연막을 매립하는 단계;상기 제1 매립 절연막 상에 비트라인 스택 패턴들을 형성하는 단계;상기 비트 라인 스택 패턴들의 양측벽에 비트라인 스페이서를 형성하는 단계;상기 비트 라인 스페이서 및 비트 라인 스택 패턴들 상에 원자층 증착법에 의하여 실리콘 산화막 및 실리콘 질화막의 다중막으로 형성된 제2 버블방지막을 형성하는 단계; 및상기 제2 버블방지막 상의 비트 라인 스택 패턴 사이를 보이드 없이 제2 매립 절연막으로 매립하는 단계를 더 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제18항에 있어서, 상기 라이너막과, 상기 게이트 스페이서 및 비트 라인 스페이서는 각각 원자층 증착법에 의하여 실리콘 질화막 및 실리콘 산화막의 다중막 또는 원자층 증착법에 의하여 실리콘 산화막과 실리콘 질화막의 다중막으로 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제18항에 있어서, 상기 라이너막, 게이트 스페이서, 제1 버블 방지막, 비트라인 스페이서 또는 제2 버블 방지막은 각각 진공 브레이크 없이 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
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US6833310B2 (en) | 2004-12-21 |
US7544607B2 (en) | 2009-06-09 |
US20050087828A1 (en) | 2005-04-28 |
KR20020030569A (ko) | 2002-04-25 |
US20020047151A1 (en) | 2002-04-25 |
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