Invention Grant
US08742311B2 Enhanced pixel cell architecture for an image sensor having a direct output from a buried channel source follower transistor to a bit line
有权
用于图像传感器的增强像素单元架构，其具有从掩埋沟道源极跟随器晶体管到位线的直接输出
- Patent Title: Enhanced pixel cell architecture for an image sensor having a direct output from a buried channel source follower transistor to a bit line
- Patent Title (中): 用于图像传感器的增强像素单元架构，其具有从掩埋沟道源极跟随器晶体管到位线的直接输出
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Application No.: US13406383Application Date: 2012-02-27
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Publication No.: US08742311B2Publication Date: 2014-06-03
- Inventor: Sohei Manabe
- Applicant: Sohei Manabe
- Applicant Address: US CA Santa Clara
- Assignee: OmniVision Technologies, Inc.
- Current Assignee: OmniVision Technologies, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H01L27/00
- IPC: H01L27/00
Abstract:
A backside illuminated pixel array having a buried channel source follower of a pixel cell which is coupled to output an analog signal directly to a bitline as image data. In one embodiment, the buried channel source follower of a pixel cell is coupled to a source follower power line having a line impedance which is less than that of one or more other signal lines for operating that same pixel cell. In another embodiment, a source follower power line has a line impedance which is less than at least one of a line impedance of a transfer signal line or a line impedance of a reset signal line.
Public/Granted literature
- US20130221194A1 ENHANCED PIXEL CELL ARCHITECTURE FOR AN IMAGE SENSOR Public/Granted day:2013-08-29
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