The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Dec. 13, 2019
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Wei-Chieh Chiang, Changhua County, TW;
Keng-Yu Chou, Kaohsiung, TW;
Chun-Hao Chuang, Hsinchu, TW;
Wen-Hau Wu, New Taipei, TW;
Jhy-Jyi Sze, Hsin-Chu, TW;
Chien-Hsien Tseng, Hsinchu, TW;
Kazuaki Hashimoto, Hsinchu County, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
A BSI image sensor includes a substrate including a front side and a back side opposite to the front side, a pixel sensor disposed in the substrate, and a color filter disposed over the pixel sensor. The pixel sensor includes a plurality of first micro structures disposed over the back side of the substrate. The color filter includes a plurality of second micro structures disposed over the back side of the substrate. Each of the first micro structures has a first height, and each of the second micro structures has a second height. The second height is less than the first height.