KR20160029005A - III-N 에피택시를 위한 Si (100) 웨이퍼들 상의 Si (111) 평면들을 가진 나노구조들 및 나노피처들 - Google Patents
III-N 에피택시를 위한 Si (100) 웨이퍼들 상의 Si (111) 평면들을 가진 나노구조들 및 나노피처들 Download PDFInfo
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Abstract
Description
도 2는 일 실시예에 따라 미리 정해진 결정 방향을 따라 정렬되는 기판 상에 핀들이 형성된 후의 도 1과 유사한 뷰이다.
도 3은 일 실시예에 따라 절연층이 핀들 사이의 기판(101) 상에 피착되고, 또한 하드 마스크가 제거된 후의 도 2와 유사한 뷰이다.
도 4는 일 실시예에 따라 도 3에 도시된 전자 디바이스 구조의 일부의 단면도이다.
도 5는 일 실시예에 따라 제2 결정 방향에 대응하는 제2 결정면을 따라 정렬되는 면을 노출시키기 위해 기판 상의 절연층 위의 핀을 변경(modifying)하는 것을 도해하는 도 4와 유사한 뷰이다.
도 6은 일 실시예에 따라 핀이 변경된 후의 도 5와 유사한 뷰이다.
도 7은 또 다른 실시예에 따라 절연층이 핀들 사이의 기판 상에 피착되고, 또한 하드 마스크가 제거된 후의 도 2에 도시된 전자 디바이스 구조의 일부의 단면도이다.
도 8은 또 다른 실시예에 따라 핀이 이방성으로 에칭된 후의 도 7과 유사한 뷰이다.
도 9는 일 실시예에 따라 절연층이 리세스된 후의 도 8과 유사한 뷰이다.
도 10은 일 실시예에 따라 도 6에 묘사된 대로의 핀을 갖는 전자 디바이스 구조의 사시도이다.
도 11은 일 실시예에 따라 도 9에 묘사된 대로의 핀을 갖는 전자 디바이스 구조의 사시도이다.
도 12는 일 실시예에 따라 도 8에 묘사된 대로의 핀을 갖는 전자 디바이스 구조의 사시도이다.
도 13은 일 실시예에 따라, 선택 사항인 핵형성/시드 층이 제2 결정 방향을 따라 정렬되는 핀의 면 상에 피착되고, 디바이스 층이 핵형성/시드 층 상에 피착되고, 및 분극 유도 층(polarization inducing layer)이 디바이스 층 상에 피착된 후의 도 6과 유사한 단면도이다.
도 14는 일 실시예에 따라, 선택 사항인 핵형성/시드 층이 제2 결정 방향을 따라 정렬되는 핀의 면 상에 피착되고, 디바이스 층이 핵형성/시드 층 상에 피착되고, 및 분극 유도 층이 디바이스 층 상에 피착된 후의 도 9와 유사한 단면도이다.
도 15는 도 16에 묘사된 대로의 전자 디바이스 구조의 사시도이다.
도 16은 또 다른 실시예에 따라, 디바이스 층이 제2 결정 방향을 따라 정렬되는 핀의 면 상에 피착되고, 및 분극 유도 층이 디바이스 층 상에 피착된 후의 도 6과 유사한 단면도이다.
도 17은 또 다른 실시예에 따라, 선택 사항인 핵형성/시드 층이 제2 결정 방향을 따라 정렬되는 핀의 면 상에 피착되고, 디바이스 층이 핵형성/시드 층 상에 피착되고, 및 분극 유도 층이 디바이스 층 상에 피착된 후의 도 6과 유사한 단면도이다.
도 18aa, 18ab 및 18ac는 본 명세서에서 기술되는 바와 같은 구조들의 실시예들의 "XSEM"(cross sectional scanning electron microscope) 사진들을 보여준다.
도 18ba, 18bb, 및 18bc는 핀들이 일 실시예에 따라 동일 시간 동안 TMAH 용액에서 에칭된 후에, 상이한 치수들을 갖는 핀들을 묘사하는 사진들을 보여준다.
도 19는 일 실시예에 따라 고온 어닐링에 의한 핀들의 새 형상을 보여주는 사진(1901)의 뷰(1900)이다.
도 20a, 20b, 21a, 및 21b는 실시예에 따라 Si (111)과 유사한 평면들 상에서의 III-N 재료 층들의 성장을 도해한다.
도 22는 일 실시예에 따른 컴퓨팅 디바이스를 도해한다.
Claims (20)
- 전자 디바이스를 제조하기 위한 방법으로서:
제2 결정 방향을 따라 정렬되는 면을 형성하기 위해 제1 결정 방향을 따라 정렬되는 기판 상의 절연층 위의 핀을 변경(modifying)하는 단계; 및
상기 제2 결정 방향을 따라 정렬되는 상기 핀의 면 위에 디바이스 층을 피착하는 단계
를 포함하는 전자 디바이스 제조 방법. - 제1항에 있어서,
상기 핀과 상기 디바이스 층 사이에 핵형성 층을 피착하는 단계
를 더 포함하는 전자 디바이스 제조 방법. - 제1항에 있어서, 상기 핀을 변경하는 단계는 상기 제2 결정 방향을 따라 정렬되는 면을 노출시키기 위해 상기 핀을 에칭하는 단계를 포함하는
전자 디바이스 제조 방법. - 제1항에 있어서, 상기 핀을 변경하는 단계는 상기 제2 결정 방향을 따라 정렬되는 면을 형성하기 위해 상기 핀을 어닐링하는 단계를 포함하는
전자 디바이스 제조 방법. - 제1항에 있어서, 상기 기판은 실리콘을 포함하고, 상기 디바이스 층은 III-V족 재료를 포함하는 전자 디바이스 제조 방법.
- 제1항에 있어서,
2차원 전자 가스를 제공하도록 상기 디바이스 층 상에 분극 유도 층(polarization inducing layer)을 피착하는 단계
를 더 포함하는 전자 디바이스 제조 방법. - 제1항에 있어서,
상기 핀을 형성하기 위해 마스크를 통하여 상기 기판을 에칭하는 단계; 및
상기 기판 상에 상기 절연층을 피착하는 단계
를 더 포함하는 전자 디바이스 제조 방법. - 제1항에 있어서, 상기 제1 결정 방향은 <100> 결정 방향이고, 상기 제2 결정 방향은 <111> 결정 방향인 전자 디바이스 제조 방법.
- 제1항에 있어서, 상기 디바이스 층의 두께는 1 나노미터 내지 40 나노미터인 전자 디바이스 제조 방법.
- 제1항에 있어서, 상기 제1 핀의 폭은 상기 제1 핀의 높이보다 작은 전자 디바이스 제조 방법.
- 전자 디바이스로서:
제1 결정 방향을 따라 정렬되는 기판 상의 절연층 위의 핀 - 상기 핀은 제2 결정 방향을 따라 정렬되는 제1 면을 가짐-; 및
상기 제2 결정 방향을 따라 정렬되는 상기 핀의 제1 면 위에 피착되는 디바이스 층
을 포함하는 전자 디바이스. - 제11항에 있어서,
상기 핀과 상기 디바이스 층 사이의 핵형성 층
을 더 포함하는 전자 디바이스. - 제11항에 있어서,
2차원 전자 가스를 제공하기 위해 상기 디바이스 층 상에 분극 유도 층
을 더 포함하는 전자 디바이스. - 제11항에 있어서, 상기 핀은 상기 제1 면에 인접하여 상기 제2 결정 방향을 따라 정렬되는 제2 면을 갖는 전자 디바이스.
- 제11항에 있어서, 상기 핀은 삼각형 형상을 갖는 전자 디바이스.
- 제11항에 있어서, 상기 핀은 V 형상을 갖는 전자 디바이스.
- 제11항에 있어서, 상기 핀은 M 형상을 갖는 전자 디바이스.
- 제11항에 있어서, 상기 기판은 실리콘을 포함하고, 상기 디바이스 층은 III-V족 재료를 포함하는 전자 디바이스.
- 제11항에 있어서, 상기 제1 결정 방향은 <100> 결정 방향이고, 상기 제2 결정 방향은 <111> 결정 방향인 전자 디바이스.
- 제11항에 있어서, 상기 디바이스 층의 두께는 1 나노미터 내지 40 나노미터인 전자 디바이스.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2013/048757 WO2014209393A1 (en) | 2013-06-28 | 2013-06-28 | NANOSTRUCTURES AND NANOFEATURES WITH Si (111) PLANES ON Si (100) WAFERS FOR III-N EPITAXY |
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| GB (1) | GB2529953B (ko) |
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- 2013-06-28 CN CN201380077010.9A patent/CN105531797A/zh active Pending
- 2013-06-28 US US14/779,257 patent/US20160056244A1/en not_active Abandoned
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2017
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| TW201517128A (zh) | 2015-05-01 |
| TW201626440A (zh) | 2016-07-16 |
| CN105531797A (zh) | 2016-04-27 |
| DE112013007072T5 (de) | 2016-01-28 |
| GB2529953B (en) | 2020-04-01 |
| US20160056244A1 (en) | 2016-02-25 |
| WO2014209393A1 (en) | 2014-12-31 |
| TWI582831B (zh) | 2017-05-11 |
| US20170213892A1 (en) | 2017-07-27 |
| GB2529953A (en) | 2016-03-09 |
| GB201520313D0 (en) | 2015-12-30 |
| TWI517217B (zh) | 2016-01-11 |
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