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A semiconductor device and a method for forming the semiconductor device are disclosed. The semiconductor device includes: a substrate, first and second source/drain (S/D) regions, a channel between the first and second S/D regions, a gate engaging with the channel, and a contact feature connecting...

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Main Authors LIEN WAI YI, LEUNG YING KEUNG, WU CHUNG CHENG, LIN CHUN HSIUNG, CHANG CHIA HAO, DIAZ CARLOS H, WANG CHIH HAO, COLINGE JEAN PIERRE
Format Patent
LanguageEnglish
Korean
Published 26.05.2016
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Summary:A semiconductor device and a method for forming the semiconductor device are disclosed. The semiconductor device includes: a substrate, first and second source/drain (S/D) regions, a channel between the first and second S/D regions, a gate engaging with the channel, and a contact feature connecting to the first S/D region. The contact feature includes first and second contact layers. The first contact layer has a conformal cross-sectional profile, and is in contact with the first S/D region on at least two sides thereof. In an embodiment of the present invention, the first contact layer is in direct contact with three or four sides of the first S/D region so as to increase a contact area. The first contact layer includes one among a semiconductor-metal alloy, an III-V semiconductor, and germanium. 반도체 디바이스 및 반도체 디바이스를 제조하는 방법이 개시된다. 반도체 디바이스는 기판, 제1 및 제2 소스/드레인(S/D) 영역, 제1 및 제2 S/D 영역 사이의 채널, 채널과 맞물리는 게이트 및 제1 S/D 영역에 연결하는 접촉 피처를 포함한다. 접촉 피처는 제1 및 제2 접촉 층을 포함한다. 제1 접촉 층은 등각의 단면 프로파일을 가지고 그 적어도 2개의 측면 상에서 제1 S/D 영역과 접촉 상태에 있다. 실시예에서, 제1 접촉 층은 접촉 면적을 증가시키도록 제1 S/D 영역의 3개 또는 4개의 측면과 직접 접촉 상태에 있다. 제1 접촉 층은 반도체-금속 합금, III-V 반도체 및 게르마늄 중 하나를 포함한다.
Bibliography:Application Number: KR20150161708