KR20060035746A - 다수 개의 표면을 따라 변형 격자 구조를 가지는 전계 효과트랜지스터 채널 - Google Patents
다수 개의 표면을 따라 변형 격자 구조를 가지는 전계 효과트랜지스터 채널 Download PDFInfo
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Abstract
Description
Claims (35)
- 전계 효과 트랜지스터(FET)의 소스와 드레인을 전기적으로 연결하는 채널로서,기판으로부터 간격을 두고 떨어진 상부면과 상기 기판과 상기 상부면 사이에서 대향하는 측벽면을 형성하는 기판과 결합하는 채널 코어로서, 이 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하는 것인, 채널 코어;상기 대향하는 측벽면 및 상기 상부면과 접촉하는 채널 엔빌로프로서, 이 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하는 것인, 채널 엔빌로프; 및상기 채널 코어의 반대측에 있는 상기 채널 엔빌로프 표면에 배치된 게이트 산화물을 포함하는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 게이트 산화물을 통해서 상기 채널 엔빌로프에 의해 형성된 적어도 2개의 표면에 결합되는 게이트를 더 포함하는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 측벽면 중 적어도 하나는 높이(hc)를 획정하고, 상기 상부면은 폭(wc)을 획정하며, 상기 높이(hc)는 상기 폭(wc)의 3배 이상인 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 채널은 FET의 구성 요소이고 상기 FET은 SRAM의 구성 요소이며, 상기 측벽면의 적어도 하나는 상기 SRAM의 안정도를 증가시키도록 선택된 높이(hc)를 획정하는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 상부면은 상기 제1 및 제2 반도체 재료 중 하나의 격자 구조에 대한 연신 및 압축 중 어느 하나를 최대화하도록 선택된 폭(wc)을 획정하는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 제2 반도체 재료는 실질적으로 2개의 상기 측벽면 및 상기 상부면을 덮는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 제1항에 있어서, 상기 제1 및 제2 반도체 재료 중 하나는 실리콘 및 게르마늄을 포함하는 것인 전계 효과 트랜지스터의 소스와 드레인을 전기적으로 연결하는 채널.
- 전계 효과 트랜지스터(FET)용 채널로서,적어도 하나의 상부면 및 적어도 하나의 인접하는 측면을 형성하는 채널 코어;상기 상부면 및 상기 적어도 하나의 측면과 접촉하는 채널 엔빌로프; 및상기 채널 엔빌로프의 적어도 2개의 표면에 배치되는 게이트 산화물을 포함하며,상기 채널 엔빌로프의 상기 표면은 상기 상부면 및 상기 적어도 하나의 측면에 대향하고,상기 채널 코어는 제1 반도체 재료를 포함하고, 상기 채널 엔빌로프는 제2 반도체 재료를 포함하며, 상기 제1 및 제2 반도체 재료 중 적어도 하나는 연신 및 압축된 격자 구조 중 어느 하나를 나타내는 것인 전계 효과 트랜지스터용 채널.
- 전계 효과 트랜지스터(FET) 채널을 제조하는 방법으로서,기판 및 상기 기판을 덮는 제1 반도체 재료를 마련하는 단계;상기 기판으로부터 간격을 두고 떨어진 상부면과 상기 기판 및 상기 상부면 사이에서 대향하는 제1 및 제2 측벽을 형성하는 제1 채널 코어를 상기 제1 반도체 재료로부터 형성하는 것인 제1 채널 코어 형성 단계;상기 상부면, 제1 측벽 및 제2 측벽 중 적어도 2개와 접촉하는 제2 반도체 재료 층을 배치하는 단계; 및상기 상부면, 제1 측벽 및 제2 측벽에 대향하는 상기 채널 엔빌로프의 적어도 2개의 외부 표면 위에 게이트 산화물을 배치하는 단계를 포함하는 것인 전계 효과 트랜지스터 채널 제조 방법.
- 제9항에 있어서, 상기 제1 반도체 재료는 Si 또는 SixGe1 -x 중 어느 하나를 포함하고, 상기 제2 반도체 재료는 Si 또는 SixGe1 -x 중 다른 하나를 포함하는 것인 전계 효과 트랜지스터 채널 제조 방법.
- 제9항에 있어서, 상기 제2 반도체 재료 층을 배치하는 단계는 마스킹 및 에칭을 포함하는 것인 전계 효과 트랜지스터 채널 제조 방법.
- 제11항에 있어서, 상기 제1 채널 코어 형성 단계는 서로 간격을 두고 떨어진 제1 및 제2 채널 코어를 형성하는 단계를 포함하고, 상기 제2 반도체 재료 층을 배치하는 단계는 상기 층을 상기 제1 채널 코어 위에는 배치하지만, 상기 제2 채널 코어 위에는 배치하지 않는 단계를 포함하는 것인 전계 효과 트랜지스터 채널 제조 방법.
- 제9항에 있어서, 상기 제2 반도체 재료 층을 배치하는 단계는 상기 제1 채널 코어의 위에 상기 제2 반도체 재료 층으로 된 캐리어 웨이퍼를 배치하고, 상기 캐 리어 웨이퍼로부터 상기 층의 일부분을 분리하며, 상기 캐리어 웨이퍼를 제거하는 단계를 포함하는 것인 전계 효과 트랜지스터 채널 제조 방법.
- PFET 채널을 형성하는 방법으로서,기판과 상기 기판 위에 놓이는 제1 반도체 재료 층을 마련하는 단계;상기 제1 반도체 재료 층 내에 그 층을 제1 부분 및 제2 부분으로 나누는 트랜치를 형성하는 단계;제1 반도체 재료의 잔여층이 상기 트랜치의 깊이보다 작은 두께를 가지고, 상기 트랜치의 일부분이 노출되도록 상기 제2 부분의 일부분을 제거하는 단계; 및제2 반도체 재료 층을 상기 잔여층의 상부와 상기 트랜치에 인접부에 배치하는 단계를 포함하는 것인 PFET 채널 형성 방법.
- 제14항에 있어서, 상기 제2 부분을 제거하기 전에 상기 트랜치가 채워지는 것인 PFET 채널 형성 방법.
- 제14항에 있어서, 상기 잔여층은 약 15 nm 미만의 두께를 가지는 것인 PFET 채널 형성 방법.
- 제14항에 있어서, 상기 제2 반도체 재료는 SixGe1 -x를 포함하는 것인 PFET 채 널 형성 방법.
- 제17항에 있어서, 상기 잔여층은 약 15 nm 미만의 두께를 가지는 것인 PFET 채널 형성 방법.
- 기판 위에 배치된 전계 효과 트랜지스터(FET)로서,소스;드레인;상기 소스를 상기 드레인에 연결시키며, 채널 코어 및 채널 엔빌로프를 형성하는 핀; 및게이트 유전체를 통하여 상기 핀의 적어도 2개의 표면에 연결되는 것인 게이트를 포함하며,상기 채널 코어는 상기 기판으로부터 연장하는 적어도 2개의 표면을 형성하고 제1 반도체 재료를 포함하며, 상기 채널 엔빌로프는 상기 적어도 2개의 표면에 접촉하고 제2 반도체 재료를 포함하며, 상기 제1 반도체 재료 및 제2 반도체 재료 중 적어도 하나는 연신 및 압축 격자 구조 중 어느 하나를 나타내는 것인 전계 효과 트랜지스터.
- 제19항에 따른 전계 효과 트랜지스터 중 적어도 하나를 포함하는 집적 회로.
- 소스, 드레인, 채널, 게이트 전극 및 게이트 유전체를 포함하는 전계 효과 트랜지스터(FET)로서,상기 채널은 저면과 상부면을 형성하는 채널 코어를 포함하되, 상기 상부면은 상기 저면과 상부면의 사이에서 측방향으로 대향하는 측벽면에 의하여 상기 저면으로부터 간격을 두고 떨어지며, 상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 채널은 적어도 상기 채널 코어의 상부면에 접촉하는 채널 엔빌로프를 더 포함하며, 상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 제1 및 제2 격자 구조 중 어느 하나는 연신되거나 압축되며,상기 게이트 전극은 상기 게이트 유전체를 통해서 상기 채널 엔빌로프에 결합하되, 상기 채널 코어의 상부면에 대향하는 상기 채널 엔빌로프의 상부면에서만 결합하는 것인 전계 효과 트랜지스터.
- 제21항에 있어서, 상기 제1 격자 구조는 상기 제2 격자 구조에 대해서 이완되는 것인 전계 효과 트랜지스터.
- 소스, 드레인, 채널, 게이트 전극 및 게이트 유전체를 포함하는 전계 효과 트랜지스터(FET)로서,상기 채널은 저면과 상부면을 포함하되, 상기 상부면은 상기 저면과 상부면 의 사이에서 측방향으로 대향하는 측벽면에 의하여 상기 저면으로부터 간격을 두고 떨어지며, 상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 채널은 적어도 상기 채널 코어의 상부면에 접촉하는 채널 엔빌로프를 더 포함하며, 상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 게이트 전극은 상기 게이트 유전체를 통하여 상기 채널 엔빌로프에 결합하되, 상기 채널 코어의 상부면 및 저면에 대향하는 상기 채널 엔빌로프의 표면에서만 결합하는 것인 전계 효과 트랜지스터.
- 제23항에 있어서, 상기 제1 격자 구조는 상기 제2 격자 구조에 대해서 이완되는 것인 전계 효과 트랜지스터.
- 소스, 드레인, 채널, 게이트 전극 및 게이트 유전체를 포함하는 전계 효과 트랜지스터(FET)로서,상기 채널은 저면과 상부면을 포함하되, 상기 상부면은 상기 저면과 상부면의 사이에서 측방향으로 대향하는 측벽면에 의하여 상기 저면으로부터 간격을 두고 떨어지며, 상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 채널은 적어도 상기 상부면 및 측벽면에 접촉하는 채널 엔빌로프를 더 포함하며, 상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 게이트 전극은 상기 게이트 유전체를 통하여 상기 채널 엔빌로프에 결합하되, 상기 채널 코어의 상부면 및 측벽면에 대향하는 상기 채널 엔빌로프의 표면에서만 결합하는 것인 전계 효과 트랜지스터.
- 제25항에 있어서, 상기 제1 격자 구조는 상기 제2 격자 구조에 대해서 이완되는 것인 전계 효과 트랜지스터.
- 소스, 드레인, 채널, 게이트 전극 및 게이트 유전체를 포함하고 기판에 부착되는 전계 효과 트랜지스터(FET)로서,상기 채널은 저면과 상부면을 포함하되, 상기 상부면은 상기 저면과 상부면의 사이에서 측방향으로 대향하는 측벽면에 의하여 상기 저면으로부터 간격을 두고 떨어지며, 상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 채널은 적어도 상기 상부면에 접촉하는 채널 엔빌로프를 더 포함하며, 상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 게이트 전극은 상기 게이트 유전체를 통하여 상기 채널 엔빌로프에 결합하되, 상기 채널 코어의 상부면, 측벽면 및 저면에 대향하는 표면에서 결합하는 것인 전계 효과 트랜지스터.
- 제27항에 있어서, 상기 제1 격자 구조는 상기 제2 격자 구조에 대해서 이완 되는 것인 전계 효과 트랜지스터.
- 소스, 드레인, 채널, 게이트 전극 및 게이트 유전체를 포함하고 기판에 부착되는 전계 효과 트랜지스터(FET)로서,상기 채널은 저면과 상부면을 포함하되, 상기 상부면은 상기 저면과 상부면의 사이에서 측방향으로 대향하는 측벽면에 의하여 상기 저면으로부터 간격을 두고 떨어지며, 상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 채널은 적어도 상기 상부면에 접촉하는 채널 엔빌로프를 더 포함하며, 상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 게이트 전극은 상기 게이트 유전체를 통하여 상기 채널 엔빌로프에 결합하되, 상기 채널 코어의 상부면, 측벽면 및 저면에 대향하는 상기 채널 엔빌로프의 표면에서 결합하는 것인 전계 효과 트랜지스터.
- 제29항에 있어서, 상기 제1 격자 구조는 상기 제2 격자 구조에 대해서 이완되는 것인 전계 효과 트랜지스터.
- 적어도 2개의 전계 효과 트랜지스터(FET)를 포함하는 SRAM으로서,각각의 상기 FET은 소스, 드레인, 게이트 및 높이와 폭을 가지는 채널을 포함하고,각각의 상기 적어도 2개의 FET 채널은 동일한 폭을 획정하고, 각각의 상기 적어도 2개의 FET 채널은 상이한 높이를 획정하는 것인 SRAM.
- 제31항에 있어서, 상기 각각의 FET 채널은,기판으로부터 간격을 두고 떨어진 상부면과 상기 기판과 상기 상부면 사이에서 대향하는 측벽면을 형성하며, 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하고, 상기 기판과 결합하는 채널 코어; 및적어도 하나의 상기 대향하는 측벽면 및 상기 상부면과 접촉하는 채널 엔빌로프로서, 이 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하는 것인, 채널 엔빌로프를 포함하는 것인 SRAM.
- 제31항에 있어서, 적어도 하나의 FET에 대하여, 상기 대향하는 측벽면 중 어느 하나의 높이에 대한, 상기 대향하는 측벽면 사이의 폭의 비율은 상기 SRAM의 안정도를 향상시키는 것인 SRAM.
- 소스;드레인;상이한 평면을 형성하는 적어도 2개의 표면을 형성하는 채널;게이트 유전체를 통하여 상기 적어도 2개의 표면 중 하나에 접촉하는 제1 게이트; 및게이트 유전체를 통하여 상기 적어도 2개의 표면 중 다른 하나에 접촉하는 제2 게이트를 포함하며,상기 제1 및 제2 게이트 중 적어도 하나를 가로질러 인가된 전압은 가변적인 것인 전계 효과 트랜지스터.
- 제34항에 있어서, 상기 채널은 채널 코어 및 채널 엔빌로프를 형성하고,상기 채널 코어는 제1 격자 구조를 형성하는 제1 반도체 재료를 포함하며,상기 채널 엔빌로프는 상기 제1 격자 구조와 상이한 제2 격자 구조를 형성하는 제2 반도체 재료를 포함하고,상기 제1 및 제2 게이트는 상기 채널 엔빌로프에 접촉하는 것인 전계 효과 트랜지스터.
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US20050017377A1 (en) | 2005-01-27 |
US7198990B2 (en) | 2007-04-03 |
CN1826690A (zh) | 2006-08-30 |
CN100479158C (zh) | 2009-04-15 |
WO2005010944A2 (en) | 2005-02-03 |
TW200516762A (en) | 2005-05-16 |
KR100773009B1 (ko) | 2007-11-05 |
TWI281248B (en) | 2007-05-11 |
US20070111406A1 (en) | 2007-05-17 |
WO2005010944A3 (en) | 2005-08-11 |
US20050218427A1 (en) | 2005-10-06 |
US6921982B2 (en) | 2005-07-26 |
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