US Patent Issued to GlobalFoundries U.S. on Jan. 20 for "Waveguide cores surrounded by an airgap" (New York, Vermont Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,846, issued on Jan. 20, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Waveguide cores surrounded by an airgap" was invented by Ravi Prakash Srivastava (Clifton Park, N.Y.), Yusheng Bian (Ballston Lake, N.Y.), Shesh Mani Pandey (Saratoga Springs, N.Y.) and Vibhor Jain (Essex Junction, Vt.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structures for an edge coupler and methods of forming a structure for an edge coupler. The structure comprises a substrate, a dielectric layer over the substrate, and a waveguide core over the substrate. The structure further comprises an airgap that extends at least partially through the dielectric layer an...