KR101175342B1 - 다수의 스택화된 하이브리드 배향 층들을 포함하는 반도체 디바이스 및 그 제조 방법 - Google Patents
다수의 스택화된 하이브리드 배향 층들을 포함하는 반도체 디바이스 및 그 제조 방법 Download PDFInfo
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Abstract
Description
Claims (10)
- 반도체 디바이스로서,제 1 결정 배향을 갖는 기판(18)과;상기 기판(18) 위에 놓이는 제 1 절연 층(14)과;상기 제 1 절연 층(14) 위에 놓이는 복수의 실리콘 층들을 포함하여 구성되며, 여기서 제 1 실리콘 층(42)은 제 2 결정 배향 및 결정 평면을 갖는 실리콘으로 구성되고, 그리고 제 2 실리콘 층(25)은 상기 제 1 실리콘 층(42)의 상기 결정 평면에 직교하는 결정 평면 및 상기 제 2 결정 배향을 갖는 실리콘으로 구성되고, 여기서 상기 제 1 실리콘 층(42) 및 상기 제 2 실리콘 층(25)의 상부 표면들은 같은 평면에 있고, 상기 제 1 실리콘 층(42) 및 상기 제 2 실리콘 층(25)은 절연 영역(48)에 의해 분리되는 것을 특징으로 하는 반도체 디바이스.
- 제 1 항에 있어서,상기 기판(18) 위에 놓이는 제 3 실리콘 층(40)을 더 포함하는 것을 특징으로 하는 반도체 디바이스.
- 제 2 항에 있어서,상기 제 3 실리콘 층(40)은 절연 영역들(48)에 의해 상기 제 1 실리콘 층(42) 및 상기 제 2 실리콘 층(25)으로부터 분리되는 것을 특징으로 하는 반도체 디바이스.
- 제 3 항에 있어서,MOSFET(60, 62, 58)이 상기 제 1 실리콘 층(42), 상기 제 2 실리콘 층(25), 상기 제 3 실리콘 층(40) 각각에 형성되는 것을 특징으로 하는 반도체 디바이스.
- 반도체 디바이스를 형성하는 방법으로서,제 1 결정 배향을 갖는 제 1 실리콘 기판(18)과, 상기 제 1 실리콘 기판(18) 상에는 제 1 절연 층(14)이 형성되고, 그리고 상기 제 1 절연 층(14) 위에 놓이며 제 2 결정 배향 및 결정 평면을 갖는 제 1 실리콘 층(19)을 포함하는 실리콘-온-인슐레이터 구조를 제공하는 단계와;상기 제 2 결정 배향 및 결정 평면을 갖는 제 2 실리콘 기판(20)과 그리고 상기 제 2 기판 상에 형성되는 제 2 절연 층(24)을 제공하는 단계와, 여기서 상기 제 2 실리콘 기판(20)은 상기 제 2 실리콘 기판(20) 안으로 수소 이온들을 주입함으로써 생성되는 결함들의 라인(22)을 포함하고;상기 제 2 실리콘 기판(20)의 결정 평면이 상기 제 1 실리콘 층(19)의 결정 평면에 수직으로 배향되도록, 상기 제 2 절연 층(24)과 상기 제 1 실리콘 층(19)을 통해 상기 제 2 실리콘 기판(20)을 상기 실리콘-온-인슐레이터 구조에 본딩하는 단계와; 그리고상기 결함들의 라인(22)을 따라 상기 제 2 실리콘 기판(20)을 분리 및 제거하여, 상기 실리콘-온-인슐레이터 구조 상에 상기 제 2 절연 층(24)과 제 2 실리콘 층(25)이 남도록 하는 단계를 포함하는 것을 특징으로 하는 반도체 디바이스를 형성하는 방법.
- 제 5 항에 있어서,상기 제 2 실리콘 층(25), 상기 제 2 절연 층(24), 상기 제 1 실리콘 층(19), 및 상기 제 1 절연 층(14)의 일부분을 제거하여, 상기 실리콘-온-인슐레이터 구조의 제 1 영역 내에 상기 제 1 실리콘 기판(18)의 일부분(34)을 노출시키는 제 1 개구(30)를 형성하는 단계와; 그리고상기 제 2 실리콘 층(25) 및 상기 제 2 절연 층(24)의 일부분을 제거하여, 상기 실리콘-온-인슐레이터 구조의 제 2 영역 내에 상기 제 1 실리콘 층(19)의 일부분(36)을 노출시키는 제 2 개구(32)를 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 디바이스를 형성하는 방법.
- 제 6 항에 있어서,상기 제 1 개구(30) 및 상기 제 2 개구(32)의 측벽 상에 측벽 스페이서들(38)을 형성하는 단계와; 그리고상기 제 1 개구(30) 및 상기 제 2 개구(32) 내에 에피택셜 실리콘을 성장시켜, 상기 실리콘-온-인슐레이터 구조의 제 1 영역(52) 내에 상기 제 1 결정 배향을 갖는 제 3 실리콘 층(40), 상기 실리콘-온-인슐레이터 구조의 제 2 영역(54) 내에 상기 제 2 결정 배향 및 결정 평면을 갖는 제 1 실리콘 층(19, 42), 그리고 상기 실리콘-온-인슐레이터 구조의 제 3 영역(56) 내에 상기 제 1 실리콘 층(19, 42)의 결정 평면에 직교하는 결정 평면 및 상기 제 2 결정 배향을 갖는 제 2 실리콘 층(25)을 구비하는 실리콘-온-인슐레이터 구조를 제공하는 단계를 더 포함하는 것을 특징으로 하는 반도체 디바이스를 형성하는 방법.
- 제 7 항에 있어서,상기 실리콘-온-인슐레이터 구조 내에 복수의 절연 영역들(48)을 형성하여, 상기 제 2 영역(54) 및 상기 제 3 영역(56)으로부터 상기 제 1 영역(52)을 절연시키고, 상기 제 3 영역(56)으로부터 상기 제 2 영역(54)을 절연시키는 단계를 더 포함하는 것을 특징으로 하는 반도체 디바이스를 형성하는 방법.
- 제 7 항에 있어서,상기 실리콘-온-인슐레이터 구조의 상기 제 1 영역(52), 상기 제 2 영역(54), 및 상기 제 3 영역(56) 내에 MOSFET(58, 60, 62)를 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 디바이스를 형성하는 방법.
- 삭제
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US7422956B2 (en) | 2008-09-09 |
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