US Patent Issued to GlobalFoundries U.S. on July 8 for "Waveguide escalators for a photonics chip" (New York, Virginia Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,353,004, issued on July 8, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Waveguide escalators for a photonics chip" was invented by Yusheng Bian (Ballston Lake, N.Y.), Kevin Dezfulian (Arlington, Va.), Kenneth Giewont (Hopewell Junction, N.Y.) and Karen Nummy (Newburgh, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structures for a waveguide escalator and methods of forming such structures. A structure comprises a first waveguide core, and a back-end-of-line stack including a first dielectric layer, a second dielectric layer on the first dielectric layer, an opening in the second dielectric layer, a second waveguide core including a sec...