ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,653, issued on Dec. 23, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).
"Assisted thermo-optic phase shifters" was invented by Sujith Chandran (Clifton Park, N.Y.), Yusheng Bian (Ballston Lake, N.Y.) and Won Suk Lee (Malta, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Structures for a thermo-optic phase shifter and methods of forming a thermo-optic phase shifter. The structure comprises a semiconductor substrate, and a heater including a first resistive heating element, a second resistive heating element, and a slab layer connecting the first resistive heating element to the second resistive heating element. The first resistive heati...