ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,722, issued on Dec. 16, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"Image sensor with dummy polysilicon based extension pad" was invented by Y.C. Chang (Kaohsiung, Taiwan), Yen-Ting Chiang (Tainan, Taiwan), Shyh-Fann Ting (Tainan, Taiwan) and Jen-Cheng Liu (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure describes an image sensor and a method for forming the image sensor. The image sensor includes an image sensing element disposed on a substrate, an extension pad disposed adjacent to the image sensing element, and a polysilicon pillar disposed on the extension pad. The image s...