ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,408, issued on Dec. 2, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Reference markers adjacent to a cavity in a photonics chip" was invented by Keith Donegan (Saratoga Springs, N.Y.), Thomas Houghton (Marlboro, N.Y.), Yusheng Bian (Ballston Lake, N.Y.), Karen Nummy (Newburgh, N.Y.), Kevin Dezfulian (Arlington, Va.) and Takako Hirokawa (Ballston Lake, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structures including a cavity adjacent to an edge coupler and methods of forming such structures. The structure comprises a semiconductor substrate including a cavity with a sidewall, a dielectric layer on the semiconductor substrate, and a...