ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,856, issued on Nov. 18, was assigned to Artilux Inc. (Menlo Park, Calif.).

"Photo-detecting apparatus with low dark current" was invented by Yen-Cheng Lu (Zhubei, Taiwan), Yun-Chung Na (San Jose, Calif.), Shu-Lu Chen (Zhubei, Taiwan) and Yen-Ju Lin (Zhubei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensing apparatus is provided. The optical sensing apparatus includes a semiconductor substrate composed of a first material; a transmitter-receiver set supported by the semiconductor substrate and including: (1) a photodetector includes an absorption region composed of a second material including germanium and configured to receive...