ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,436, issued on May 20, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"Thermally tunable waveguide and photonic integrated circuit component having the same" was invented by Feng-Wei Kuo (Hsinchu County, Taiwan) and Wen-Shiang Liao (Miaoli County, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermally tunable waveguide including an optical waveguide and a heater is provided. The optical waveguide includes a phase shifter. The heater is disposed over the optical waveguide. The heater includes a heating portion, pad portions and tapered portions. The heating portion overlaps with the phase shifter of the opti...