Invention Grant
US08981512B1 Optical shield in a pixel cell planarization layer for black level correction
有权
用于黑色电平校正的像素单元平面化层中的光学屏蔽
- Patent Title: Optical shield in a pixel cell planarization layer for black level correction
- Patent Title (中): 用于黑色电平校正的像素单元平面化层中的光学屏蔽
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Application No.: US14030395Application Date: 2013-09-18
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Publication No.: US08981512B1Publication Date: 2015-03-17
- Inventor: Gang Chen , Jin Li , Duli Mao , Dyson H. 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: H01L31/0232
- IPC: H01L31/0232 ; H01L21/00 ; H01L31/18
Abstract:
A pixel array includes a plurality of photodiodes disposed in a semiconductor layer and arranged in the pixel array. A color filter layer is disposed proximate to the semiconductor layer. Light is to be directed to at least a first one of the plurality of photodiodes through the color filter layer. An optical shield layer is disposed proximate to the color filter layer. The color filter layer is disposed between the optical shield layer and the semiconductor layer. The optical shield layer shields at least a second one of the plurality of photodiodes from the light.
Public/Granted literature
- US20150076639A1 OPTICAL SHIELD IN A PIXEL CELL PLANARIZATION LAYER FOR BLACK LEVEL CORRECTION Public/Granted day:2015-03-19
Information query
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