Invention Grant
- Patent Title: Stacked image sensor with cascaded optical edge pass filters
- Patent Title (中): 具有级联光学边缘滤波器的堆叠图像传感器
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Application No.: US13772131Application Date: 2013-02-20
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Publication No.: US09184198B1Publication Date: 2015-11-10
- Inventor: Xiaoyu Miao , Anurag Gupta , Roman Lewkow
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Blakely Sokoloff Taylor & Zafman LLP
- Main IPC: H01L27/00
- IPC: H01L27/00 ; H01L27/146 ; H01L31/18

Abstract:
A color sensitive image sensor includes first, second, and third image sensor layers vertically aligned in an image sensor stack. Each of the image sensor layers includes a pixel array oriented to generate image data in response to light incident on the image sensor stack and readout circuitry coupled to the pixel array to readout the image data. A first optical filter layer is disposed between the first image sensor layer and the second image sensor layer and has a first edge pass filter characteristic with a first cutoff wavelength. A second optical filter layer is disposed between the second image sensor layer and the third image sensor layer and has a second edge pass filter characteristic with a second cutoff wavelength offset from the first cutoff wavelength.
Information query
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