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:
Apr. 11, 2023
Filed:
Sep. 11, 2020
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Yun-Wei Cheng, Taipei, TW;
Chun-Hao Chou, Tainan, TW;
Yin-Chieh Huang, Tainan, TW;
Wan-Chen Huang, Kaohsiung, TW;
Zhe-Ju Liu, Taoyuan, TW;
Kuo-Cheng Lee, Tainan, TW;
Chi-Cherng Jeng, Tainan, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Abstract
An image sensor includes a substrate, a photosensitive unit in the substrate, a dielectric grid over the substrate, and a color filter over the photosensitive unit and surrounded by the dielectric grid. The dielectric grid has a first portion and a second portion over the first portion, and the second portion of the dielectric grid has a rounded top surface extending upwards from a sidewall of the first portion of the dielectric grid. The color filter has a first portion lower than a lowermost portion of the rounded top surface of the second portion of the dielectric grid and a second portion higher than the lowermost portion of the rounded top surface of the second portion of the dielectric grid.