US Patent Issued to GlobalFoundries U.S. on Sept. 23 for "Photonic integrated circuit including passive optical guard" (New York, Vermont Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,617, issued on Sept. 23, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Photonic integrated circuit including passive optical guard" was invented by Zhuojie Wu (Port Chester, N.Y.), Yusheng Bian (Ballston Lake, N.Y.) and Andreas D. Stricker (Essex Junction, Vt.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to a PIC structure including a photonic component on a semiconductor substrate. A passive optical guard is composed of a light absorbing material and is in proximity to the photonic component. The passive optical guard includes at least a portion in an active semiconductor layer of the semiconductor substrate an...