Invention Grant
US08164127B2 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
- Patent Title: Image sensor including a pixel cell having an epitaxial layer, system having the same, and method of forming a pixel cell
- Patent Title (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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Application No.: US12585501Application Date: 2009-09-16
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Publication No.: US08164127B2Publication Date: 2012-04-24
- Inventor: 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
- Applicant: 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
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2008-0090981 20080917
- Main IPC: H01L31/113
- IPC: H01L31/113
Abstract:
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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