KR20080028385A - 개별 흡수 및 증식 영역들을 갖는 게르마늄/실리콘애벌란시 광검출기 - Google Patents
개별 흡수 및 증식 영역들을 갖는 게르마늄/실리콘애벌란시 광검출기 Download PDFInfo
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- 229910052732 germanium Inorganic materials 0.000 title claims description 23
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Abstract
Description
Claims (20)
- 제2 유형의 반도체 영역에 인접한 제1 유형의 반도체 영역을 포함하는 흡수 영역 - 상기 제1 유형의 반도체는 파장들의 제1 범위에 있는 광을 흡수하고, 상기 제2 유형의 반도체는 파장들의 제2 범위에 있는 광을 흡수함 -, 및상기 흡수 영역에 인접하고 상기 흡수 영역으로부터 분리되어 정의된 증식(multiplication) 영역 - 상기 증식 영역은 상기 흡수 영역에서 생성된 전자들을 증식시키는 전계가 있는 진성(intrinsic) 반도체 영역을 포함함 -을 포함하는 장치.
- 제1항에 있어서,상기 파장들의 제1 범위 밖이고 상기 파장들의 제2 범위 내에 있는 파장을 갖는 상기 제1 유형의 반도체 영역에 입사한 광은 상기 제1 유형의 반도체 물질을 통과하여 상기 제2 유형의 반도체 물질로 전달되어 흡수되는 장치.
- 제1항에 있어서,상기 증식 영역의 상기 진성 반도체 영역은 제1 및 제2 도핑 영역 사이에 배치되는 장치.
- 제1항에 있어서,상기 흡수 영역에 인접하여 배치된 도핑된 콘택트층을 더 포함하는 장치.
- 제1항에 있어서,상기 제1 유형의 반도체 영역은 실리콘을 포함하고, 상기 제2 유형의 반도체 영역은 게르마늄을 포함하는 장치.
- 제5항에 있어서,상기 흡수 영역은 상기 파장들의 제1 및 제2 범위의 조합 범위 내의 광을 흡수하는 장치.
- 제1항에 있어서,상기 장치는 광검출기이고,상기 광검출기는 어레이로 배열되어 상기 어레이에 포커스된 광을 집합적으로 검출하는 복수의 광검출기들 중 하나인 장치.
- 제1항에 있어서,상기 증식 영역에 인접하여 배치된 반사층을 더 포함하며,상기 증식 영역은 상기 흡수 영역과 상기 반사층 사이에 배치되어, 상기 흡수 영역과 상기 증식 영역을 포함하는 공진 공동(resonant cavity)이 상기 반사층과 광이 입사하는 상기 장치의 표면 사이에 정의되는 장치.
- 제8항에 있어서,상기 반사층은 SOI(silicon-on-insulator) 웨이퍼의 매립 산화물층을 포함하는 장치.
- 제4항에 있어서,상기 도핑된 콘택트층에 인접하는 상기 흡수 영역에 정의된 가드링(guard ring)을 더 포함하는 장치.
- 흡수 영역의 제1 유형의 반도체 영역으로 광학 빔을 향하게 하는 단계,상기 제1 유형의 반도체 영역에서 파장들의 제1 범위에 있는 광의 제1 부분을 흡수하는 단계,상기 파장들의 제1 범위 밖이며 파장들의 제2 범위 내에 있는 광의 제2 부분을 통과시키는 단계,상기 흡수 영역의 제2 유형의 반도체 영역에서 상기 광의 상기 제2 부분을 흡수하는 단계, 및상기 흡수 영역에서 생성되어 상기 흡수 영역에 인접하여 정의된 증식 영역으로 표류한 전자들을 선택적으로 증식시키는 단계를 포함하는 방법.
- 제11항에 있어서,상기 증식 영역에서의 높은 전계에 응답하여, 상기 흡수 영역에서 생성되어 상기 증식 영역으로 표류한 상기 전자들을 가속시키는 단계를 더 포함하는 방법.
- 제11항에 있어서,상기 흡수 영역에서 생성되어 상기 증식 영역으로 표류한 전자들의 선택적 증식은 상기 증식 영역에서의 충돌 이온화(impact ionization)에 응답하는 방법.
- 제11항에 있어서,상기 증식 영역에서 증식시키기 위한 상기 전자들의 선택은 상기 증식 영역이 대략 0.05 미만의 k-인자 값을 갖는 실리콘을 포함하는 것에 응답하는 방법.
- 제11항에 있어서,상기 흡수 영역 및 상기 증식 영역을 포함하는 공진 공동을 정의하는 반사 표면들 사이에서 광을 반사시키는 단계를 더 포함하는 방법.
- 광검출기들의 어레이를 포함하고,각각의 상기 광검출기들은,제2 유형의 반도체 영역에 인접한 제1 유형의 반도체 영역을 포함하는 흡수 영역 - 상기 제1 유형의 반도체는 파장들의 제1 범위에 있는 광을 흡수하고, 상기 제2 유형의 반도체는 파장들의 제2 범위에 있는 광을 흡수함 -,상기 흡수 영역에 인접하고 상기 흡수 영역으로부터 분리되어 정의된 증식 영역 - 상기 증식 영역은 상기 흡수 영역에서 생성된 전자들을 증식시키는 전계가 있는 진성 반도체 영역을 포함함 -, 및광검출기들의 상기 어레이에 광학 이미지를 포커싱하는 광학 포커싱 소자를 포함하는 시스템.
- 제16항에 있어서,상기 광학 포커싱 소자는 렌즈를 포함하는 시스템.
- 제16항에 있어서,상기 제1 유형의 반도체 영역은 실리콘을 포함하고, 상기 제2 유형의 반도체 영역은 게르마늄을 포함하는 시스템.
- 제16항에 있어서,각각의 상기 광검출기들에서 상기 증식 영역의 상기 진성 반도체 영역은 제1 및 제2 도핑 영역 사이에 배치되는 시스템.
- 제16항에 있어서,각각의 상기 광검출기들은 상기 흡수 영역 및 상기 증식 영역을 포함하는 공 진 공동을 더 포함하는 시스템.
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US11/170,556 | 2005-06-28 | ||
US11/170,556 US7233051B2 (en) | 2005-06-28 | 2005-06-28 | Germanium/silicon avalanche photodetector with separate absorption and multiplication regions |
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EP (1) | EP1897148A2 (ko) |
JP (1) | JP2008544559A (ko) |
KR (1) | KR100944574B1 (ko) |
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KR20150018518A (ko) * | 2012-05-29 | 2015-02-23 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | 독립적으로 제어가능한 흡수 영역 전기장 및 증식 영역 전기장을 포함하는 장치 |
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CN102593202A (zh) | 2012-07-18 |
WO2007002953A2 (en) | 2007-01-04 |
US7233051B2 (en) | 2007-06-19 |
KR100944574B1 (ko) | 2010-02-25 |
US8338857B2 (en) | 2012-12-25 |
US20100320502A1 (en) | 2010-12-23 |
CN1905216A (zh) | 2007-01-31 |
US20140367740A1 (en) | 2014-12-18 |
EP1897148A2 (en) | 2008-03-12 |
US8829566B2 (en) | 2014-09-09 |
JP2008544559A (ja) | 2008-12-04 |
US20060289957A1 (en) | 2006-12-28 |
US20070164385A1 (en) | 2007-07-19 |
CN1905216B (zh) | 2012-03-21 |
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