Invention Grant
- Patent Title: Image sensor having a gapless microlenses
- Patent Title (中): 具有无间隙微透镜的图像传感器
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Application No.: US14222833Application Date: 2014-03-24
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Publication No.: US09331115B2Publication Date: 2016-05-03
- Inventor: Jin Li , Yin Qian , Gang Chen , Dyson H. Tai , Dajiang Yang
- 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: H04N9/73
- IPC: H04N9/73 ; H04N9/04 ; H04N9/87 ; H01L27/146 ; G02B13/00

Abstract:
An image sensor includes a plurality of photosensitive devices arranged in a semiconductor substrate. A planar layer is disposed over the plurality of photosensitive devices in the semiconductor substrate. A plurality of first microlenses comprised of a lens material is arranged in first lens regions on the planar layer. A plurality of lens barriers comprised of the lens material is arranged on the planar layer to provide boundaries that define second lens regions on the planar layer. A plurality of second microlenses comprised of the lens material is formed within the boundaries provided by the plurality of lens barriers that define the second lens regions on the planar layer. The plurality of lens barriers are integrated with respective second microlenses after a reflow process of the plurality of second microlenses.
Public/Granted literature
- US20150270302A1 IMAGE SENSOR HAVING A GAPLESS MICROLENSES Public/Granted day:2015-09-24
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