KR20090007388A - 드레인 및 소스 영역을 함몰시킴으로써 채널 영역에 근접하게 트랜지스터에 스트레스 소스를 제공하는 기술 - Google Patents
드레인 및 소스 영역을 함몰시킴으로써 채널 영역에 근접하게 트랜지스터에 스트레스 소스를 제공하는 기술 Download PDFInfo
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Abstract
Description
Claims (13)
- 제 1 전도도 타입의 제 1 트랜지스터(100, 200)를 포함하는 반도체 디바이스(150, 250)로서, 상기 제 1 트랜지스터(100, 200)는,재 1 채널 영역(106, 206) 위에 형성된 제 1 게이트 전극(105, 205)과;상기 제 1 게이트 전극(105, 205)과 상기 제 1 채널 영역(106, 206) 사이에 형성된 제 1 게이트 절연 층(104, 204)과;상기 제 1 채널 영역(106, 206)에 인접하여 형성된 제 1 드레인 및 소스 영역(114, 214)과, 여기서 상기 제 1 드레인 및 소스 영역(114, 214)은 상기 제 1 게이트 절연 층(104, 204)의 하부 표면에 대해 함몰된(112D, 212D) 상부 표면를 가지며; 그리고상기 제 1 드레인 및 소스 영역(114, 214) 위에 형성된 제 1 스트레스 층(118, 218)을 포함하여 구성되며, 상기 제 1 스트레스 층(118, 218)은 함몰된 상기 제 1 드레인 및 소스 영역(114, 214)에 의해 형성된 리세스(112, 212)로 확장하는 것을 특징으로 하는 반도체 디바이스.
- 제1항에 있어서,상기 반도체 디바이스(150, 250)는 상기 제 1 전도도 타입과는 다른 제 2 전도도 타입의 제 2 트랜지스터(100, 200)를 더 포함하고, 상기 제 2 트랜지스터(100, 200)는,재 2 채널 영역(106, 206) 위에 형성된 제 2 게이트 전극(105, 205)과;상기 제 2 게이트 전극(105, 205)과 상기 제 2 채널 영역(106, 206) 사이에 형성된 제 2 게이트 절연 층(104, 204)과;상기 제 2 채널 영역(106, 206)에 인접하여 형성된 제 2 드레인 및 소스 영역(114, 214)과, 여기서 상기 제 2 드레인 및 소스 영역(114, 214)은 상기 제 2 게이트 절연 층(104, 204)의 하부 표면에 대해 함몰된(112D, 212D) 상부 표면를 가지며; 그리고상기 제 2 드레인 및 소스 영역(114, 214) 위에 형성된 제 2 스트레스 층(118, 218)을 포함하여 구성되며, 상기 제 2 스트레스 층(118, 218)은 함몰된 상기 제 2 드레인 및 소스 영역(114, 214)에 의해 형성된 리세스(112, 212)로 확장하는 것을 특징으로 하는 반도체 디바이스.
- 제1항에 있어서,함몰된 상기 제 1 드레인 및 소스 영역(214)이 제 1 변형 반도체 물질(230n, 230p)을 포함하는 것을 특징으로 하는 반도체 디바이스.
- 제2항에 있어서,함몰된 상기 제 1 드레인 및 소스 영역(114, 214)은 제 1 변형 반도체 물질(23On, 23Op)을 포함하고, 그리고 함몰된 상기 제 2 드레인 및 소스 영역(114, 214)은 상기 제 1 변형 반도체 물질(23On, 23Op)과는 다른 제 2 변형 반도체 물 질(23On, 23Op)을 포함하는 것을 특징으로 하는 반도체 디바이스.
- 제1항에 있어서,상기 제 1 게이트 전극(205)의 측벽 상에 형성되는 측벽 스페이서(232)와;상기 측벽 스페이서(232)에 인접하여 상기 제 1 드레인 및 소스 영역(214)에 형성되는 금속 실리사이드(217)와; 그리고상기 제 1 드레인 및 소스 영역(214)에서의 변형된 반도체 물질(230)을 더 포함하여 구성되고, 상기 변형된 반도체 물질(230)의 일부는 상기 금속 실리사이드(217)와 상기 제 1 채널 영역(206) 사이에서 측면으로 배치되도록 상기 측벽 스페이서(232) 아래에 형성되는 것을 특징으로 하는 반도체 디바이스.
- 게이트 전극 구조(205)에 인접하여 반도체 층(203)에 리세스(212)를 형성하는 단계와, 여기서 상기 게이트 전극 구조(205)는 제 1 폭(208W)을 가진 제 1 측벽 스페이서(208)를 포함하고;상기 리세스(212)에 변형된 반도체 물질(230)을 형성하는 단계와;상기 제 1 측벽 스페이서(208)를 제거하는 단계와; 그리고상기 제 1 폭(208W)보다 큰 제 2 폭(232W)을 갖는 제 2 측벽 스페이서(232)에 근거하여 적어도 상기 변형된 반도체 물질(230)에 드레인 및 소스 영역(214)을 형성하는 단계를 포함하여 구성되는 것을 특징으로 하는 방법.
- 제6항에 있어서,상기 변형된 반도체 물질(230)을 형성하는 단계는, 상기 게이트 전극 구조(205)와 상기 반도체 층(203) 사이에 위치하는 게이트 절연 층(204)에 대하여 함몰되도록 적어도 일 부분을 형성하는 것을 포함하는 것을 특징으로 하는 방법.
- 제7항에 있어서,상기 드레인 및 소스 영역(214) 위에 스트레스 층(218)을 형성하는 단계를 더 포함하고, 상기 스트레스 층(218)은 상기 변형된 반도체 물질(230)에 의해 정의된 리세스(212)로 확장하는 것을 특징으로 하는 방법.
- 제6항에 있어서,상기 제 2 측벽 스페이서(232)에 근거하여 상기 변형된 반도체 물질(230)에 금속 실리사이드(217)를 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제 1 전계 효과 트랜지스터(100, 200)의 게이트 전극(105, 205)에 인접하는 제1의 리세스(112, 212)를 형성하는 단계와, 여기서 상기 게이트 전극(105, 205)은 반도체 층(103, 203) 위에 위치하고 그리고 상기 게이트 전극(105, 205)의 측벽들 상에 측벽 스페이서(115, 232)가 형성되고;상기 측벽 스페이서(115, 232)에 인접한 드레인 영역 및 소스 영역(114, 214)을 형성하는 단계와; 그리고상기 제 1 전계 효과 트랜지스터(100, 200) 위에 제 1 유전체 스트레스 층(118, 218)을 형성하는 단계를 포함하여 구성되며, 상기 제 1 유전체 스트레스 층(118, 218)은 상기 리세스(112, 212)에 형성되어, 상기 제 1 유전체 스트레스 층(118, 218)의 하부 표면이 상기 게이트 전극(105, 205)과 상기 반도체 층(103, 203) 사이에 위치하는 게이트 절연 층(104, 204)의 하부 표면 아래로 확장하는 것을 특징으로 하는 방법.
- 제10항에 있어서,상기 게이트 전극(105, 205)의 상기 측벽들 상에 오프셋 스페이서(108, 231)를 형성하는 단계와; 그리고상기 오프셋 스페이서(108, 231)에 근거하여 드레인 및 소스 확장 영역(111, 211)을 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제11항에 있어서,상기 드레인 및 소스 확장 영역(111, 211)은 상기 리세스(112, 212)를 형성하기 이전에 형성되는 것을 특징으로 하는 방법.
- 제10항에 있어서,제 2 전계 효과 트랜지스터(100, 200)의 게이트 전극(105, 205)에 인접하는 제2의 리세스(112, 212)를 형성하는 단계와, 여기서 상기 제 2 전계 효과 트랜지스 터(100, 200)의 상기 게이트 전극(105, 205)은 반도체 층(103, 203) 위에 위치하고 그리고 상기 게이트 전극(105, 205)의 측벽들 상에 측벽 스페이서(115, 232)가 형성되고;상기 제 2 전계 효과 트랜지스터(100, 200)의 상기 측벽 스페이서(115, 232)에 인접한 드레인 영역 및 소스 영역(114, 214)을 형성하는 단계와; 그리고상기 제 2 전계 효과 트랜지스터(100, 200) 위에 제 2 유전체 스트레스 층(118, 218)을 형성하는 단계를 더 포함하여 구성되며, 상기 제 2 유전체 스트레스 층(118, 218)은 상기 제2의 리세스(112, 212)에 형성되어, 상기 제 2 유전체 스트레스 층(118, 218)의 하부 표면이 상기 제 2 전계 효과 트랜지스터(100, 200)의 상기 게이트 전극(105, 205)과 상기 반도체 층(103, 203) 사이에 위치하는 게이트 절연 층(104, 204)의 하부 표면 아래로 확장하고, 상기 제 2 유전체 스트레스 층(118, 218)은 상기 제 1 유전체 스트레스 층(118, 218)과 비교하여 다른 타입의 내재적 스트레스를 가지는 것을 특징으로 하는 방법.
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DE102006015077A DE102006015077B4 (de) | 2006-03-31 | 2006-03-31 | Transistor mit abgesenkten Drain- und Source-Gebieten und Verfahren zur Herstellung desselben |
DE102006015077.5 | 2006-03-31 | ||
US11/558,006 US7696052B2 (en) | 2006-03-31 | 2006-11-09 | Technique for providing stress sources in transistors in close proximity to a channel region by recessing drain and source regions |
US11/558,006 | 2006-11-09 | ||
PCT/US2007/004689 WO2007126495A1 (en) | 2006-03-31 | 2007-02-21 | Technique for providing stress sources in transistors in close proximity to a channel region by recessing drain and source regions |
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JP (1) | JP5576655B2 (ko) |
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US20070228482A1 (en) | 2007-10-04 |
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TWI511273B (zh) | 2015-12-01 |
US20100155850A1 (en) | 2010-06-24 |
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KR101430703B1 (ko) | 2014-08-14 |
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US7696052B2 (en) | 2010-04-13 |
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