ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,728, issued on Dec. 16, was assigned to OmniVision Technologies Inc. (Santa Clara, Calif.).
"Global-shutter pixel" was invented by Hui Zang (San Jose, Calif.), Vincent Venezia (Los Gatos, Calif.) and Cynthia Sun Yee Lee (Santa Clara, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A global-shutter pixel includes a semiconductor substrate that has a storage node and a photodiode region. A front surface of the substrate has a first recessed region between the photodiode region and the storage node in a first direction parallel to the front surface, and a second recessed region between the first recessed region and the storage node in the first d...