公开(公告)号：US20210193709A1

公开(公告)日：2021-06-24

申请号：US16721253

申请日：2019-12-19

Applicant: STMicroelectronics Ltd

Inventor： Yu-Tsung LIN

IPC: H01L27/146 ,  G01J1/42 ,  G01J3/51

Abstract: Disclosed herein is an ambient light sensor formed by a substrate, and an inner central area defined on the substrate, and a concentric polygonal shape defined on the substrate about the inner central area. The concentric polygonal shape is defined by concentric polygonal isolation regions and spoke shaped isolation regions extending through respective corners of the concentric polygonal isolation regions to the inner central area to thereby divide the concentric polygonal shape into a plurality of concentric polygonal regions, with each of the plurality of concentric polygonal regions divided into a plurality of trapezoidal sections. A plurality of photodiodes ae formed on the substrate such that each of the plurality of trapezoidal sections contains at least one photodiode. A color filter is applied to the plurality of trapezoidal sections and their respective photodiodes to thereby form a plurality of color channels.