KR101785154B1 - 핀 전계 효과 트랜지스터(finfet) 디바이스 구조체 - Google Patents
핀 전계 효과 트랜지스터(finfet) 디바이스 구조체 Download PDFInfo
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- KR101785154B1 KR101785154B1 KR1020150128370A KR20150128370A KR101785154B1 KR 101785154 B1 KR101785154 B1 KR 101785154B1 KR 1020150128370 A KR1020150128370 A KR 1020150128370A KR 20150128370 A KR20150128370 A KR 20150128370A KR 101785154 B1 KR101785154 B1 KR 101785154B1
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Abstract
Description
도 1은 본 개시의 일부 실시형태들에 따른, 핀 전계 효과 트랜지스터(fin field effect transistor; FinFET) 디바이스 구조체의 횡단면도를 나타낸다.
도 2a 내지 도 2h는 본 개시의 일부 실시형태들에 따른, 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체를 형성하는 횡단면도를 나타낸다.
도 2ca는 본 개시의 일부 실시형태들에 따른, 도 2c의 다른 실시형태의 횡단면도를 나타낸다.
도 2ha는 본 개시의 일부 실시형태들에 따른, 도 2h의 다른 실시형태의 횡단면도를 나타낸다.
도 3a 내지 도 3c는 본 개시의 일부 실시형태들에 따른, 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체를 형성하는 횡단면도를 나타낸다.
도 4a 내지 도 4g은 본 개시의 일부 실시형태들에 따른, 핀 전계 효과 트랜지스터(FinFET)를 형성하는 횡단면도를 나타낸다.
도 5a 및 도 5b는 본 개시의 일부 실시형태들에 따른, 핀 구조체 상에 게이트 구조체를 형성하는 횡단면도를 나타낸다.
도 6a 내지 도 6f는 본 개시의 일부 실시형태들에 따른, 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체를 형성하는 횡단면도를 나타낸다.
Claims (10)
- 핀 전계 효과 트랜지스터(fin field effect transistor; FinFET) 디바이스 구조체에 있어서,
제1 영역과 제2 영역을 포함하는 기판과,
상기 기판 상에 형성된 격리 구조체(isolation structure)와,
상기 제1 영역 상에 형성된 제1 핀 구조체들과,
상기 제2 영역 상에 형성된 제2 핀 구조체들과,
상기 제2 영역 상에 형성된 잔여 핀 구조체들
을 포함하며,
상기 제1 핀 구조체들의 개수는, 상기 제2 핀 구조체들의 개수보다 더 크며,
상기 잔여 핀 구조체들은 상기 격리 구조체에 의해 완전히 덮이며,
상기 제1 핀 구조체들은, 상기 격리 구조체의 상부 표면으로부터 상기 제1 핀 구조체들의 상부 표면까지 측정되는 제1 높이를 가지며,
상기 제2 핀 구조체들은, 상기 격리 구조체의 상부 표면으로부터 상기 제2 핀 구조체들의 상부 표면까지 측정되는 제2 높이를 가지며,
상기 제1 높이와 상기 제2 높이 사이의 갭은, 0.4 nm 내지 4 nm의 범위 내에 있는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체. - 제1항에 있어서, 상기 제1 핀 구조체들의 상부 표면은 상기 제2 핀 구조체들의 상부 표면과 동일한 높이를 가지는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체.
- 제1항에 있어서, 2개의 인접한 제1 핀 구조체들은 제1 피치(pitch)를 가지며, 2개의 인접한 제2 핀 구조체들은 제2 피치를 가지며, 상기 제2 피치는 상기 제1 피치 이상인 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체.
- 제1항에 있어서,
상기 제1 핀 구조체들의 중앙부 상에 형성된 제1 게이트 구조체와,
상기 제2 핀 구조체들의 중앙부 상에 형성된 제2 게이트 구조체를 더 포함하며,
상기 제1 게이트 구조체의 상부 표면은 상기 제2 게이트 구조체의 상부 표면과 동일한 높이를 가지는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체. - 삭제
- 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체에 있어서,
제1 영역 및 제2 영역을 포함하는 기판과,
상기 제1 영역에서의 상기 기판 상에 형성되는 제1 핀 구조체들과,
상기 제2 영역에서의 상기 기판 상에 형성되는 제2 핀 구조체들과,
상기 제2 영역 상에 형성된 잔여 핀 구조체들과,
상기 기판 상에 형성된 격리 구조체
를 포함하며,
상기 잔여 핀 구조체들은 상기 격리 구조체에 의해 완전히 덮이며,
상기 격리 구조체는, 2개의 인접한 제1 핀 구조체들 사이에 위치되는 제1 부분과 2개의 인접한 제2 핀 구조체들 사이에 위치되는 제2 부분을 포함하며,
상기 제1 부분의 상부 표면과 상기 제2 부분의 상부 표면 사이의 갭은, 0.4 nm 내지 4 nm의 범위 내에 있는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체. - 제6항에 있어서,
상기 제1 핀 구조체들 및 상기 제2 핀 구조체들의 중앙부 상에 형성된 게이트 구조체를 더 포함하며,
상기 게이트 구조체는 하이-k 유전체 층 및 상기 하이-k 유전체 층 상에 형성된 금속 게이트 전극 층을 포함하는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체. - 제7항에 있어서,
상기 게이트 구조체에 인접한 소스/드레인(source/drain; S/D) 구조체와,
상기 S/D 구조체 상에 그리고 상기 기판 상에 형성된 층간 유전체(inter-layer dielectric; ILD) 구조체를 더 포함하는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체. - 삭제
- 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체를 형성하기 위한 방법에 있어서,
제1 영역과 제2 영역을 갖는 기판을 제공하는 단계와,
상기 제1 영역 및 상기 제2 영역 상에 각각 제1 핀 구조체들 및 제2 핀 구조체들을 형성하는 단계로서, 상기 제1 핀 구조체들의 개수는 상기 제2 핀 구조체들의 개수보다 더 큰 것인, 상기 제1 핀 구조체들 및 제2 핀 구조체들을 형성하는 단계와,
상기 제1 핀 구조체들 및 상기 제2 핀 구조체들 상에 희생층을 형성하는 단계로서, 제1 두께가 상기 제1 핀 구조체들의 상부 표면으로부터 상기 희생층의 상부 표면까지 측정되며, 상기 제1 두께는 10 nm 내지 50 nm의 범위 내에 있는 것인, 상기 희생층을 형성하는 단계와,
상기 기판 상에 격리 구조체를 형성하기 위하여 상기 희생층에 대하여 에칭 프로세스를 수행하는 단계
를 포함하며,
상기 제1 핀 구조체들은, 상기 격리 구조체의 상부 표면으로부터 상기 제1 핀 구조체들의 상부 표면까지 측정되는 제1 높이를 가지며,
상기 제2 핀 구조체들은, 상기 격리 구조체의 상부 표면으로부터 상기 제2 핀 구조체들의 상부 표면까지 측정되는 제2 높이를 가지며,
상기 제1 높이와 상기 제2 높이 사이의 갭은, 0.4 nm 내지 4 nm의 범위 내에 있는 것인 핀 전계 효과 트랜지스터(FinFET) 디바이스 구조체를 형성하기 위한 방법.
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US14/737,099 US9418994B1 (en) | 2015-03-26 | 2015-06-11 | Fin field effect transistor (FinFET) device structure |
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US20120032267A1 (en) * | 2010-08-06 | 2012-02-09 | International Business Machines Corporation | Device and method for uniform sti recess |
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TW201635352A (zh) | 2016-10-01 |
KR20160115655A (ko) | 2016-10-06 |
US9818648B2 (en) | 2017-11-14 |
CN106024885B (zh) | 2019-09-06 |
DE102015110028A1 (de) | 2016-09-29 |
DE102015110028B4 (de) | 2021-02-11 |
US9418994B1 (en) | 2016-08-16 |
US20160379888A1 (en) | 2016-12-29 |
CN106024885A (zh) | 2016-10-12 |
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