ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,538,602, issued on Jan. 27, was assigned to VISERA TECHNOLOGIES COMPANY LTD. (Hsin-Chu, Taiwan).
"Image sensor comprising inner grid and outer grid" was invented by Jian-Wen Luo (Hsin-Chu, Taiwan), Yu-Chi Chang (Hsin-Chu, Taiwan), Zong-Ru Tu (Hsin-Chu, Taiwan) and Po-Hsiang Wang (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image sensor includes a first sensing unit. The first sensing unit includes a pair of photodiodes formed in a substrate and spaced by a deep trench isolation structure, an outer grid over the pair of photodiodes, a color filter filled in the outer grid, and an inner grid disposed in the color filter. The color f...