Invention Grant
US08969775B2 High dynamic range pixel having a plurality of amplifier transistors
有权
具有多个放大器晶体管的高动态范围像素
- Patent Title: High dynamic range pixel having a plurality of amplifier transistors
- Patent Title (中): 具有多个放大器晶体管的高动态范围像素
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Application No.: US13781388Application Date: 2013-02-28
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Publication No.: US08969775B2Publication Date: 2015-03-03
- Inventor: Gang Chen , Zhiqiang Lin , Sing-Chung Hu , Duli Mao , Hsin-Chih Tai
- Applicant: Omnivision Technologies, Inc.
- 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 ; H04N5/335

Abstract:
A pixel cell for use in a high dynamic range image sensor includes a photodiode disposed in semiconductor material to accumulate charge in response to light incident upon the photodiode. A transfer transistor is disposed in the semiconductor material and is coupled between a floating diffusion and the photodiode. A first amplifier transistor is disposed in the semiconductor material having a gate terminal coupled to the floating diffusion and a source terminal coupled to generate a first output signal of the pixel cell. A second amplifier transistor is disposed in the semiconductor material having a gate terminal coupled to the floating diffusion and a source terminal coupled to generate a second output signal of the pixel cell.
Public/Granted literature
- US20140239154A1 HIGH DYNAMIC RANGE PIXEL HAVING A PLURALITY OF AMPLIFIER TRANSISTORS Public/Granted day:2014-08-28
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