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:
Sep. 14, 2021
Filed:
Apr. 29, 2019
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Volume Chien, Tainan, TW;
Yun-Wei Cheng, Taipei, TW;
Zhe-Ju Liu, Taoyuan, TW;
Kuo-Cheng Lee, Tainan, TW;
Chi-Cherng Jeng, Tainan, TW;
Chuan-Pu Liu, Tainan, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Abstract
An image sensor device is provided. The image sensor device includes a semiconductor substrate including a front surface, a back surface opposite to the front surface, and a light-sensing region extending from the front surface into the semiconductor substrate. The image sensor device includes a light-blocking structure in the semiconductor substrate and surrounding the light-sensing region. The light-blocking structure includes a conductive light reflection structure and a light absorption structure, and the light absorption structure is between the conductive light reflection structure and the back surface. The image sensor device includes an insulating layer between the light-blocking structure and the semiconductor substrate.