Invention Grant
- Patent Title: Fully buried color filter array of image sensor
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Application No.: US17558199Application Date: 2021-12-21
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Publication No.: US11750906B2Publication Date: 2023-09-05
- Inventor: Gang Chen , Yuanwei Zheng , Qin Wang , Cunyu Yang , Guannan Chen , Duli Mao , Dyson H. Tai , Lindsay Alexander Grant
- 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: Christensen O'Connor Johnson Kindness PLLC
- The original application number of the division: US16539931 2019.08.13
- Main IPC: H04N23/55
- IPC: H04N23/55 ; G02B5/20 ; G02B7/00 ; H04N23/54 ; G02B3/00 ; H01L27/146

Abstract:
An image sensor includes a substrate. An array of photodiodes is disposed in the substrate. A plurality of spacers is arranged in a spacer pattern. At least one spacer of the plurality of spacers has an aspect ratio of 18:1 or greater. A buffer layer is disposed between the substrate and the spacer pattern. An array of color filters is disposed in the spacer pattern.
Public/Granted literature
- US20220116516A1 FULLY BURIED COLOR FILTER ARRAY OF IMAGE SENSOR Public/Granted day:2022-04-14
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