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. 14, 2025
Filed:
Nov. 20, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Cheng Yu Huang, Hsinchu, TW;
Chun-Hao Chuang, Hsinchu, TW;
Chien-Hsien Tseng, Hsinchu, TW;
Kazuaki Hashimoto, Zhubei, TW;
Keng-Yu Chou, Kaohsiung, TW;
Wei-Chieh Chiang, Yuanlin Township, TW;
Wen-Chien Yu, Hsinchu, TW;
Ting-Cheng Chang, Hsinchu, TW;
Wen-Hau Wu, Hsin-Chu, TW;
Chih-Kung Chang, Zhudong Township, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.