发明申请
US20100065896A1 Image sensor including a pixel cell having an epitaxial layer, system having the same, and method of forming a pixel cell
有权
图像传感器包括具有外延层的像素单元，具有该外延层的像素单元，以及形成像素单元的方法
- 专利标题： Image sensor including a pixel cell having an epitaxial layer, system having the same, and method of forming a pixel cell
- 专利标题（中）： 图像传感器包括具有外延层的像素单元，具有该外延层的像素单元，以及形成像素单元的方法
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申请号： US12585501申请日： 2009-09-16
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公开(公告)号： US20100065896A1公开(公告)日： 2010-03-18
- 发明人: Kyung-Ho Lee , Kwang-il Jung , Jung-Chak Ahn , Yi-Tae Kim , Kyoung-Sik Moon , Bum-Suk Kim , Young-Bae Kee , Dong-Young Lee , Tae-Sub Jung , Kang-Sun Lee
- 申请人： Kyung-Ho Lee , Kwang-il Jung , Jung-Chak Ahn , Yi-Tae Kim , Kyoung-Sik Moon , Bum-Suk Kim , Young-Bae Kee , Dong-Young Lee , Tae-Sub Jung , Kang-Sun Lee
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 优先权： KR10-2008-0090981 20080917
- 主分类号： H01L31/112
- IPC分类号： H01L31/112 ; H01L31/18 ; H01L21/20
摘要：
A pixel cell includes a substrate, an epitaxial layer, and a photo converting device in the epitaxial layer. The epitaxial layer has a doping concentration profile of embossing shape, and includes a plurality of layers that are stacked on the substrate. The photo converting device does not include a neutral region that has a constant potential in the vertical direction. Therefore, the image sensor including the pixel cell has high quantization efficiency, and a crosstalk between photo-converting devices is decreased.
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