ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,183, issued on March 25, was assigned to Canon K.K. (Tokyo).
"Image pickup device and method for manufacturing image pickup device" was invented by Kentaro Suzuki (Kawasaki, Japan) and Shunsuke Nakatsuka (Kawasaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image pickup device having a pixel region in which pixels are arranged, and in which a multilayer wiring structure is disposed. Each pixel includes a photoelectric conversion unit, a charge accumulation unit, a floating diffusion, a light shielding portion covering the charge accumulation unit and opening above the photoelectric conversion unit, and a waveguide which overlaps at lea...