KR20170077241A - 광 흡수 장치 - Google Patents
광 흡수 장치 Download PDFInfo
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Abstract
Description
도 1은 PIN 광 다이오드 구조도를 도시하고,
도 2a 내지 도 2h는 광 다이오드 구조를 형성하기 위한 구현도를 도시하고,
도 3a 내지 도 3c는 광 다이오드 구조에서 반대(counter) 도핑 층을 형성하기 위한 구현도를 도시하고,
도 4a 내지 도 4c는 광 다이오드 구조에서 확산 제어 층 또는/및 반대 도핑 층을 형성하기 위한 구현도를 도시하고,
도 5a 내지 도 5b는 도 4a에서 도시된 구조의 구현도를 도시하고,
도 6a 내지 도 6e는 본 발명의 다른 구현에 따라 식각/폴리싱 스토퍼를 갖는 광 다이오드를 형성하는 제조 단계를 예시하는 단면도이고,
도 7a 내지 도 7e는 본 발명의 또 다른 구현에 따라 식각/폴리싱 스토퍼를 갖는 광 다이오드를 형성하는 제조 단계를 예시하는 단면도이고,
도 8a 내지 도 8f는 본 발명의 또 다른 구현에 따라 식각/폴리싱 스토퍼를 갖는 광 다이오드를 형성하는 제조 단계를 예시하는 단면도를 도시하고,
도 9a 내지 도 9d는 본 발명의 일 구현에 따라 격리로서 컨포멀(conformal) 선택적 Ge 식각 공정으로 광 다이오드를 형성하는 제조 단계를 예시하는 단면도, 그리고 도 9e는 격리로서 식각 공정 대신에 도핑 영역을 갖는 광 다이오드를 도시하는 단면도이고,
도 10a 내지 도 10l은 측벽 패시베이션, 또는/및 계면 층, 또는/및 다수 층 형성 단계로 광 다이오드를 형성하는 것을 예시하는 단면도이고,
도 11a 내지 도 11k는 측벽 패시베이션, 또는/및 계면 층을 갖는 광 다이오드를 형성하는 것을 예시하는 단면도이고,
도 12a 내지 도 12k는 계면 층, 또는/및 측벽 패시베이션, 또는/및 다수 층 형성 단계로 광 다이오드를 형성하는 것을 예시하는 단면도이고,
도 13은 트랜지스터와 집적된 본 발명의 하나의 광 다이오드를 도시하는 단면도이다.
Claims (20)
- 광 흡수 장치를 형성하기 위한 방법으로서,
(1) 기판 위에 격리 층을 형성하는 단계,
(2) 선택된 구역을 노출시키도록 상기 격리 층의 일부분을 제거하는 단계,
(3) 상기 선택된 구역의 측벽의 적어도 일부분을 덮는 스페이서를 형성하는 단계,
(4) 상기 선택된 구역 내에 게르마늄을 포함하는 제1 흡수 층을 에피택셜 성장시키는 단계,
(5) 상기 제1 흡수 층 위에 실리콘을 포함하는 패시베이션 층을 형성하는 단계를 포함하되,
표면 누설 전류는 상기 제1 흡수 층을 패시베이팅함으로써 감축될 수 있고, 낮은 암전류 및 높은 감도 광 흡수 장치가 형성될 수 있는,
광 흡수 장치를 형성하기 위한 방법.
- 제1항에 있어서,
단계(2) 전에, 시드 구역을 노출시키도록 상기 격리 층의 일부분을 제거하는 단계, 상기 시드 구역 내에 시드 층을 형성하는 단계, 및 다른 격리 층을 퇴적시키는 단계를 더 포함하되,
상기 시드 구역은 상기 선택된 구역과 적어도 부분적으로 겹치고 있는,
광 흡수 장치를 형성하기 위한 방법.
- 제2항에 있어서,
시드 재료를 형성하기 전에 상기 시드 구역 내에 스페이서를 형성하는 단계를 더 포함하는,
광 흡수 장치를 형성하기 위한 방법.
- 제1항에 있어서,
상기 기판과 상기 제1 흡수 층 사이에 실리콘을 포함하는 제1 계면 층을 형성하는 단계를 더 포함하되,
상기 계면 층은 상기 제1 흡수 층에 비해 더 낮은 유전율을 갖는,
광 흡수 장치를 형성하기 위한 방법.
- 제2항에 있어서,
상기 시드 층과 상기 제1 흡수 층 사이에 실리콘을 포함하는 제2 계면 층을 형성하는 단계를 더 포함하되,
상기 계면 층은 상기 제1 흡수 층에 비해 더 낮은 유전율을 갖는,
광 흡수 장치를 형성하기 위한 방법.
- 제1항에 있어서,
단계(4) 전에, 트랜지스터의 소스 및 드레인 영역에 대해 상기 기판에서 고도의 도핑 영역을 형성하는 단계를 더 포함하는,
광 흡수 장치를 형성하기 위한 방법.
- 광 흡수 장치를 형성하기 위한 방법으로서,
(1) 기판에 적어도 부분적으로 매립된 제1 도핑 영역을 형성하는 단계,
(2) 상기 제1 도핑 영역 위에 제1 층을 형성하는 단계,
(3) 상기 제1 층 위에 게르마늄을 포함하는 제2 층을 형성하는 단계,
(4) 상기 제2 층을 덮는 제3 층을 형성하는 단계,
(5) 상기 제3 층 위에 산화물을 포함하는 제4 층을 형성하는 단계,
(6) 상기 제4 층 위에 질화물을 포함하는 제5 층을 형성하는 단계,
(7) 상기 제5 층을 제거하고, 상기 제4 층 상에서 정지하는 단계,
(8) 상기 제4 층 위에 제6 층을 형성하는 단계를 포함하되,
상기 제2 층은 상기 기판의 표면과의 격자 불일치를 갖고, 상기 제6 층은 광학 신호가 지나가 상기 제6 층에 의해 반사될 때 소정 반사율이 달성될 수 있도록 소정 두께를 갖고, 상기 광학 신호의 적어도 일부분은 상기 제2 층에 의해 흡수되는,
광 흡수 장치를 형성하기 위한 방법.
- 제7항에 있어서,
상기 제3 층은 산화물, 또는 질화물, 또는 실리콘, 또는 하이-k 유전체 또는 당해 조합을 포함하는,
광 흡수 장치를 형성하기 위한 방법.
- 제7항에 있어서,
단계(3) 후에, 상기 제2 층을 수 개의 단위 구역으로 분리하는 도판트를 주입하는 단계를 더 포함하는,
광 흡수 장치를 형성하기 위한 방법.
- 광 흡수 장치로서,
기판,
제1 선택된 구역 상의 상기 기판 위의 광 흡수 층,
상기 광 흡수 층 위의 실리콘을 포함하는 패시베이션 층,
상기 광 흡수 층의 측벽의 적어도 일부분을 둘러싸는 스페이서,
상기 스페이서의 적어도 일부분을 둘러싸는 격리 층을 포함하되,
상기 광 흡수 장치는 높은 대역폭 및 낮은 암전류를 달성할 수 있는,
광 흡수 장치.
- 제10항에 있어서,
상기 광 흡수 층은 하부 층 및 상부 층을 더 포함하되,
상기 상부 층은 상기 하부 층보다 더 높은 게르마늄 농도를 갖는,
광 흡수 장치.
- 제10항에 있어서,
상기 기판과 상기 광 흡수 층 사이의 계면 층을 더 포함하되,
상기 계면 층은 상기 광 흡수 층보다 더 높은 실리콘 농도를 갖는,
광 흡수 장치.
- 제10항에 있어서,
실리콘을 포함하는 상기 패시베이션 층은 실리사이드 콘택트를 형성하도록 더 사용될 수 있는,
광 흡수 장치.
- 제10항에 있어서,
상기 광 흡수 층의 상부 표면 가까이의 원형 형상 구역을 갖는 표면 도핑 영역을 더 포함하되,
상기 원형 형상 구역은 상기 제1 선택된 구역보다 더 작고, 게르마늄을 포함하는 상기 광 흡수 층은 게르마늄의 효과적 표면 패시베이션을 위해 (110) 평면에 의해 둘러싸인 직사각형 형상을 갖는 상기 제1 선택된 구역 내에 형성되는,
광 흡수 장치.
- 광 흡수 장치로서,
기판,
상기 기판 위에 형성되고, 제1 개구부 내의 상부 부분 및 상기 제1 개구부와 적어도 부분적으로 겹치는 제2 개구부 내의 하부 부분을 포함하는 광 흡수 층,
상기 광 흡수 층의 상기 상부 부분 위의 실리콘을 포함하는 패시베이션 층,
상기 광 흡수 층의 상기 상부 부분의 측벽의 적어도 일부분을 둘러싸는 스페이서,
상기 광 흡수 층의 상기 하부 부분 및 상기 스페이서의 적어도 일부분을 둘러싸는 격리 층을 포함하되,
광 흡수 장치는 높은 대역폭 및 낮은 암전류를 달성할 수 있는,
광 흡수 장치.
- 제15항에 있어서,
상기 상부 부분은 상기 하부 부분보다 더 높은 게르마늄 농도를 갖는,
광 흡수 장치.
- 제15항에 있어서,
상기 광 흡수 층보다 더 높은 실리콘 농도를 갖는, 상기 기판과 상기 광 흡수 층 사이의 계면 층을 더 포함하되, 상기 계면 층은 암전류를 더 감축하도록 계면 표면 트랩 상태를 패시베이팅하는,
광 흡수 장치.
- 제15항에 있어서,
실리콘을 포함하는 상기 패시베이션 층은 실리사이드 콘택트를 형성하도록 더 사용될 수 있는,
광 흡수 장치.
- 제15항에 있어서,
상기 광 흡수 층의 상기 하부 부분의 측벽을 둘러싸는 스페이서를 더 포함하는,
광 흡수 장치.
- 제15항에 있어서,
상기 광 흡수 층의 상기 상부 부분의 상부 표면 가까이의 원형 형상 구역을 갖는 표면 도핑 영역을 더 포함하되,
상기 원형 형상 구역은 상기 제1 개구부보다 더 작고, 게르마늄을 포함하는 상기 광 흡수 층은 게르마늄의 효과적 표면 패시베이션을 위해 (110) 평면에 의해 둘러싸인 직사각형 형상을 갖는 상기 제1 개구부 내에 형성되는,
광 흡수 장치.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
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| US201462078986P | 2014-11-13 | 2014-11-13 | |
| US62/078,986 | 2014-11-13 | ||
| US201462081574P | 2014-11-19 | 2014-11-19 | |
| US62/081,574 | 2014-11-19 | ||
| US201562121448P | 2015-02-26 | 2015-02-26 | |
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| US201562126698P | 2015-03-01 | 2015-03-01 | |
| US62/126,698 | 2015-03-01 | ||
| US201562197098P | 2015-07-26 | 2015-07-26 | |
| US62/197,098 | 2015-07-26 | ||
| PCT/US2015/060735 WO2016077791A1 (en) | 2014-11-13 | 2015-11-13 | Light absorption apparatus |
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| KR20170077241A true KR20170077241A (ko) | 2017-07-05 |
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Family Applications (1)
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| US (2) | US9748307B2 (ko) |
| EP (1) | EP3218933A4 (ko) |
| JP (1) | JP6302143B2 (ko) |
| KR (1) | KR20170077241A (ko) |
| CN (1) | CN107210308B (ko) |
| TW (1) | TWI621253B (ko) |
| WO (1) | WO2016077791A1 (ko) |
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-
2015
- 2015-11-13 US US14/940,572 patent/US9748307B2/en active Active
- 2015-11-13 JP JP2017530346A patent/JP6302143B2/ja active Active
- 2015-11-13 TW TW104137635A patent/TWI621253B/zh active
- 2015-11-13 CN CN201580060584.4A patent/CN107210308B/zh active Active
- 2015-11-13 KR KR1020177015424A patent/KR20170077241A/ko not_active Ceased
- 2015-11-13 WO PCT/US2015/060735 patent/WO2016077791A1/en not_active Ceased
- 2015-11-13 EP EP15858667.7A patent/EP3218933A4/en not_active Withdrawn
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| US20160141329A1 (en) | 2016-05-19 |
| JP2017534182A (ja) | 2017-11-16 |
| WO2016077791A8 (en) | 2016-12-01 |
| TW201633517A (zh) | 2016-09-16 |
| EP3218933A4 (en) | 2018-07-11 |
| JP6302143B2 (ja) | 2018-03-28 |
| EP3218933A1 (en) | 2017-09-20 |
| TWI621253B (zh) | 2018-04-11 |
| CN107210308A (zh) | 2017-09-26 |
| US10128303B2 (en) | 2018-11-13 |
| WO2016077791A1 (en) | 2016-05-19 |
| US9748307B2 (en) | 2017-08-29 |
| US20170317135A1 (en) | 2017-11-02 |
| CN107210308B (zh) | 2018-06-29 |
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