US Patent Issued to GlobalFoundries U.S. on June 23 for "Seal rings for a wide band-gap semiconductor layer stack" (Vermont Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,967, issued on June 23, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Seal rings for a wide band-gap semiconductor layer stack" was invented by Ian McCallum-Cook (Burlington, Vt.), Mark Levy (Williston, Vt.) and Zhong-Xiang He (Essex Junction, Vt.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structures including a wide band-gap semiconductor layer stack and methods of forming such structures. The structure comprises a layer stack on a substrate and a first dielectric layer on the layer stack. The layer stack includes semiconductor layers that comprise a wide band-gap semiconductor material. A seal ring includes a trench that penetrates...