KR20200049574A - 반도체 디바이스의 상이한 영역에서 상이한 유전 상수 및 크기를 가지는 유전체 핀들 - Google Patents
반도체 디바이스의 상이한 영역에서 상이한 유전 상수 및 크기를 가지는 유전체 핀들 Download PDFInfo
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Abstract
Description
도 1은 예시적인 FinFET 트랜지스터의 사시도이다.
도 2 내지 도 16은 본 개시의 다양한 실시예에 따른 다양한 제조 단계에서의 반도체 장치의 측방향 단면도를 도시한다.
도 17a 내지 도 17b는 본 개시의 실시예들에 따른 반도체 디바이스의 평면도들을 도시한다.
도 18은 본 발명의 일 실시예에 따른 반도체 장치의 제조 방법을 나타내는 흐름도이다.
Claims (10)
- 반도체 디바이스로서,
상기 반도체 디바이스의 제1 영역 내에 각각 위치한 제1 에피 층 및 제2 에피 층;
상기 제1 에피 층과 상기 제2 에피 층 사이에 위치한 제1 유전체 핀 - 상기 제1 유전체 핀은 제1 유전 상수를 가짐 -;
상기 반도체 디바이스의 제2 영역 내에 각각 위치한 제3 에피 층 및 제4 에피 층; 및
상기 제3 에피 층과 상기 제4 에피 층 사이에 위치한 제2 유전체 핀 - 상기 제2 유전체 핀은 상기 제1 유전 상수보다 작은 제2 유전 상수를 가짐 -
을 포함하는, 반도체 디바이스. - 제1 항에 있어서,
상기 제1 유전체 핀은 제1 높이를 가지고;
상기 제2 유전체 핀은 제2 높이를 가지며;
상기 제1 높이는 상기 제2 높이보다 큰 것인, 반도체 디바이스. - 제1 항에 있어서,
상기 제1 유전체 핀의 윗면은 상기 제1 에피 층 및 상기 제2 에피 층의 최외각 횡측 돌출부 위에 배치되며;
상기 제2 유전체 핀의 윗면은 상기 제3 에피 층 및 상기 제4 에피 층의 최외각 횡측 돌출부 아래에 배치된 것인, 반도체 디바이스. - 제1 항에 있어서,
상기 제2 유전체 핀은 상기 제1 유전체 핀보다 많은 수의 유전체 재료를 포함한 것인, 반도체 디바이스. - 제4 항에 있어서,
상기 제1 유전체 핀은 제1 유전 상수를 가지는 제1 유형의 유전체 재료로 구성되고;
상기 제2 유전체 핀은 제2 유전 상수를 가지는 제2 유형의 유전체 재료 및 제3 유전 상수를 가지는 제3 유형의 유전체 재료로 구성되고;
상기 제1 유전 상수는 상기 제2 유전 상수보다 크며;
상기 제2 유전 상수는 상기 제3 유전 상수보다 큰 것인, 반도체 디바이스. - 제1 항에 있어서,
상기 제2 유전체 핀은 상기 제1 유전체 핀보다 폭이 적어도 두 배 넓은 것인, 반도체 디바이스. - 제1 항에 있어서,
상기 제1 영역은 메모리 디바이스 영역을 포함하며;
상기 제2 영역은 로직 디바이스 영역을 포함한 것인, 반도체 디바이스. - 제1 항에 있어서,
상기 제1 영역은 제1 패턴 밀도를 가지고;
상기 제2 영역은 제2 패턴 밀도를 가지며;
상기 제1 패턴 밀도는 상기 제2 패턴 밀도보다 큰 것인, 반도체 디바이스. - 반도체 디바이스로서,
상기 반도체 디바이스의 메모리 디바이스 영역 내에 배치된 제1 소스/드레인 및 제2 소스/드레인;
상기 제1 소스/드레인과 상기 제2 소스/드레인 사이에 배치된 하이 k 핀 구조물;
상기 반도체 디바이스의 로직 디바이스 영역 내에 배치된 제3 소스/드레인 및 제4 소스/드레인; 및
상기 제3 소스/드레인과 상기 제4 소스/드레인 사이에 배치된 하이브리드 핀 구조물
을 포함하고,
상기 제1 소스/드레인과 상기 제2 소스/드레인은 제1 거리만큼 이격되어 있고;
상기 제3 소스/드레인과 상기 제4 소스/드레인은 상기 제1 거리보다 큰 제2 거리만큼 이격되어 있고;
상기 하이 k 핀 구조물은 상기 하이브리드 핀 구조물보다 큰 유전 상수를 가지고;
상기 하이 k 핀 구조물의 윗면은 상기 하이브리드 핀 구조물의 윗면 위에 배치되며;
상기 하이브리드 핀 구조물은 복수의 유형들의 상이한 유전체 재료들을 포함한 것인, 반도체 디바이스. - 방법으로서,
반도체 디바이스의 제1 영역 및 제2 영역 내에 형성된 복수의 디바이스 핀 구조물들을 포함하는 상기 반도체 디바이스를 제공하는 단계 - 상기 제1 영역 내의 상기 디바이스 핀 구조물들 사이에 제1 트렌치가 존재하고, 상기 제2 영역 내의 상기 디바이스 핀 구조물들 사이에 제2 트렌치가 존재함 -;
상기 제1 트렌치를 제1 유전체 층으로 부분적으로 채우는 단계;
상기 제2 트렌치를 제2 유전체 층으로 부분적으로 채우는 단계 - 상기 제2 유전체 층은 상기 제1 유전체 층보다 낮은 유전 상수를 가짐 -;
상기 제2 유전체 층 위에 제3 유전체 층을 형성하는 단계 - 상기 제3 유전체 층은 상기 제2 유전체 층보다 낮은 유전 상수를 가짐 -;
상기 제2 트렌치가 상기 제3 유전체 층 및 상기 제2 유전체 층의 잔존 부분들에 의해 부분적으로 채워지도록 상기 제3 유전체 층 및 상기 제2 유전체 층을 부분적으로 제거하는 단계;
상기 디바이스 핀 구조물들을 리세스하는 단계; 및
상기 리세스된 디바이스 핀 구조물들 위에 에피 층들을 성장시키는 단계
를 포함하며,
상기 제1 유전체 층은 상기 제1 영역에서 제1 서브 세트의 디바이스 핀 구조물들을 분리시키고, 상기 제3 유전체 층 및 상기 제2 유전체 층의 잔존 부분들은 상기 제2 영역에서 제2 서브 세트의 디바이스 핀 구조물들을 분리시키는 것인, 방법.
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