ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,490,537, issued on Dec. 2, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"Image sensor having an improved structure for small pixel designs" was invented by Yen-Yu Chen (Kaohsiung, Taiwan), Yen-Ting Chiang (Tainan, Taiwan), Bai-Tao Huang (Hsinchu, Taiwan), Tse-Hua Lu (Zhubei, Taiwan), Tzu-Hsuan Hsu (Kaohsiung, Taiwan), Shyh-Fann Ting (Tainan, Taiwan), Jen-Cheng Liu (Hsin-Chu, Taiwan) and Dun-Nian Yaung (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of the present disclosure are directed towards an image sensor. The image sensor includes a substrate having a first side and a second side....