ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,420, issued on Oct. 28, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).
"Photonic semiconductor device and method of manufacture" was invented by Chen-Hua Yu (Hsinchu, Taiwan) and Hsing-Kuo Hsia (Jhubei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes a photonic routing structure including a silicon waveguide, photonic devices, and a grating coupler, wherein the silicon waveguide is optically coupled to the photonic devices and to the grating coupler; an interconnect structure on the photonic routing structure, wherein the grating coupler is configured to optically couple to an external optical ...