KR100797278B1 - 캐리어 이동성 및 이미져의 청색 반응을 향상시키기 위한스트레인드 실리콘층을 가지는 픽셀 - Google Patents
캐리어 이동성 및 이미져의 청색 반응을 향상시키기 위한스트레인드 실리콘층을 가지는 픽셀 Download PDFInfo
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- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
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Abstract
Description
Claims (48)
- 반도체 서브스트레이트의 위쪽 부분에 스트레인드 실리콘 층을 포함하는 반도체 서브스트레이트; 및상기 반도체 서브스트레이트 영역 상에 형성된 것으로 전하를 발생시키기 위한 포토센서를 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 1에 있어서, 상기 스트레인드 실리콘 층은 500Å 내지 1000Å 의 두께를 가지는 것임을 특징으로 하는 픽셀 셀.
- 청구항 1에 있어서, 상기 스트레인드 실리콘 층은 실리콘-게르마늄 베이스 층 위에 형성된 상부 실리콘 층을 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 3에 있어서, 상기 실리콘-게르마늄 베이스 층은 SixGe(1-x)(0<x<1)을 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 3에 있어서, 상기 실리콘-게르마늄 베이스 층은 SixGeyCz, x+y+z=1(0<x<1, 0<y<1 및 0<z<1)을 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 3에 있어서, 상기 실리콘-게르마늄 베이스 층은 다양한 농도의 게르마늄을 가지는 실리콘-게르마늄의 다중 층들을 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 3에 있어서, 상기 실리콘-게르마늄 베이스 층은 게르마늄 농도가 30% 내지 40%인 것을 특징으로 하는 픽셀 셀.
- 청구항 1에 있어서, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트레이트의 영역 내에 형성된, 리셋 트랜지스터, 소소 팔로어 트랜지스터 및 열 선택 트랜지스터를 더 포함하는 것을 특징으로 하는 픽셀 셀.
- 청구항 8에 있어서, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트레이트 영역내에 형성된 전달 트랜지스터를 더 포함하는 것을 특징으로 하는 픽셀 셀.
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- 복수의 픽셀 셀들 중에서 적어도 하나의 픽셀 셀이,위쪽 부분에 스트레인드 실리콘 층을 포함하는 반도체 서브스트레이트; 및상기 반도체 서브스트레이트의 상기 위쪽 부분 내에 형성된 것으로서 전하를 생성하기 위한 포토센서를 포함하는, 복수개의 픽셀 셀들을 포함하는 이미져.
- 청구항 24에 있어서, 상기 스트레인드 실리콘 층은 500Å 내지 1000Å 의 두께를 가지는 것임을 특징으로 하는 이미져.
- 청구항 24에 있어서, 상기 스트레인드 실리콘 층은 실리콘-게르마늄 베이스 층 위에 형성된 상부 실리콘 층을 포함하는 것을 특징으로 하는 이미져.
- 청구항 26에 있어서, 상기 실리콘-게르마늄 베이스 층은 SixGe(1-x)(0<x<1)을 포함하는 것을 특징으로 하는 이미져.
- 청구항 26에 있어서, 상기 실리콘-게르마늄 베이스 층은 SixGeyCz, x+y+z=1(0<x<1, 0<y<1 및 0<z<1)을 포함하는 것을 특징으로 하는 이미져.
- 청구항 26에 있어서, 상기 실리콘-게르마늄 베이스 층은 게르마늄 농도가 30% 내지 40%인 것을 특징으로 하는 이미져.
- 청구항 24에 있어서, 상기 이미져는 CMOS 이미져인 것을 특징으로 하는 이미져.
- 청구항 24에 있어서, 상기 적어도 하나의 픽셀 셀은, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트레이트의 영역 내에 형성된, 리셋 트랜지스터, 소소 팔로어 트랜지스터 및 열 선택 트랜지스터를 더 포함하는 것을 특징으로 하는 이미져.
- 청구항 31에 있어서, 상기 이미져는, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트레이트 영역 내에 형성된, 전달 트랜지스터를 더 포함하는 것을 특징으로 하는 이미져.
- 청구항 24에 있어서, 상기 포토센서는 포토다이오드인 것을 특징으로 하는 이미져.
- 청구항 24에 있어서, 상기 적어도 하나의 픽셀 셀은 이미징 어레이의 부분인 것을 특징으로 하는 이미져.
- 프로세서;상기 프로세서에 연결된 이미징 디바이스로서, 상기 이미징 디바이스는 복수개의 픽셀 셀들을 가지며, 상기 픽셀 셀들 중 적어도 어느 하나가,반도체 서브스트레이트의 위쪽 부분에 스트레인드 실리콘 층을 포함하는 반도체 서브스트레이트;상기 반도체 서브스트레이트의 위쪽 영역에 형성된 것으로 전하를 생성하기 위한 포토센서; 및상기 서브스트레이트 상에 형성된, 적어도 출력 트랜지스터를 포함하는 리드아웃 회로를 포함하는 것을 특징으로 하는 프로세싱 시스템.
- 청구항 35에 있어서, 상기 스트레인드 실리콘 층은 500Å 내지 1000Å 의 두께를 가지는 것임을 특징으로 하는 프로세싱 시스템.
- 청구항 35에 있어서, 상기 스트레인드 실리콘 층은 실리콘-게르마늄 베이스 층 위에 형성된 상부 실리콘 층을 포함하는 것을 특징으로 하는 프로세싱 시스템.
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- 반도체 서브스트레이트를 형성하는 단계;상기 반도체 서브스트레이트의 위쪽 부분과 연관된 스트레인드 실리콘 층을 형성하는 단계; 및상기 반도체 서브스트레이트의 상기 위쪽 부분에 전하를 생성하기 위한 포토센서를 형성하는 단계를 포함하는 것을 특징으로 하는 픽셀 셀 형성 방법.
- 청구항 39에 있어서, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트 레이트의 영역 내에, 리셋 트랜지스터, 소소 팔로어 트랜지스터 및 열 선택 트랜지스터를 형성하는 단계를 더 포함하는 것을 특징으로 하는 픽셀 셀 형성 방법.
- 청구항 40에 있어서, 상기 스트레인드 실리콘 층을 포함하는 상기 서브스트레이트 영역 내에 전달 트랜지스터를 형성하는 단계를 더 포함하는 것을 특징으로 하는 픽셀 셀 형성 방법.
- 청구항 39에 있어서, 상기 스트레인드 실리콘 층을 형성하는 단계는, 스트레인드 실리콘 층이 500Å 내지 1000Å 의 두께를 가지도록 수행되는 것임을 특징으로 하는 픽셀 셀 형성 방법.
- 청구항 39에 있어서, 상기 스트레인드 실리콘 층을 형성하는 단계는, 실리콘-게르마늄 베이스 층 위에 상부 실리콘 층을 형성함에 의하여 수행되는 것임을 특징으로 하는 픽셀 셀 형성 방법.
- 청구항 43에 있어서, 상기 실리콘-게르마늄 베이스 층은 SixGe(1-x)(0<x<1)을 포함하는 것을 특징으로 하는 픽셀 셀 형성 방법.
- 삭제
- 청구항 43에 있어서, 상기 상부 실리콘 층을 형성하는 단계는 원자 층 증착(ALD)에 의하여 수행되는 것임을 특징으로 하는 픽셀 셀 형성 방법.
- 삭제
- 삭제
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US10/612,974 US7164182B2 (en) | 2003-07-07 | 2003-07-07 | Pixel with strained silicon layer for improving carrier mobility and blue response in imagers |
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US7872284B2 (en) | 2011-01-18 |
US7485904B2 (en) | 2009-02-03 |
US20210242272A1 (en) | 2021-08-05 |
ATE504085T1 (de) | 2011-04-15 |
WO2005008782A1 (en) | 2005-01-27 |
US20050006565A1 (en) | 2005-01-13 |
KR20060028745A (ko) | 2006-03-31 |
EP1644980B1 (en) | 2011-03-30 |
US20110059573A1 (en) | 2011-03-10 |
US10134798B2 (en) | 2018-11-20 |
US20090146153A1 (en) | 2009-06-11 |
US10910431B2 (en) | 2021-02-02 |
US7164182B2 (en) | 2007-01-16 |
US20190058000A1 (en) | 2019-02-21 |
CN1849708A (zh) | 2006-10-18 |
EP1644980A1 (en) | 2006-04-12 |
US9461079B2 (en) | 2016-10-04 |
US12002836B2 (en) | 2024-06-04 |
US20170117319A1 (en) | 2017-04-27 |
DE602004032026D1 (de) | 2011-05-12 |
JP2007529103A (ja) | 2007-10-18 |
CN100524785C (zh) | 2009-08-05 |
US20070057298A1 (en) | 2007-03-15 |
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