ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,639, issued on May 27, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).
"Optical sensing device having inclined reflective surface" was invented by Chih-Chiang Chang (Hsinchu, Taiwan) and Chia-Chan Chen (Hsinchu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are devices for optical sensing and manufacturing method thereof. In one embodiment, a device for optical sensing includes a substrate, a photodetector and a reflector. The photodetector is disposed in the substrate. The reflector is disposed in the substrate and spaced apart from the photodetector, wherein the reflector has a reflective sur...