US Patent Issued to International Business Machines on March 3 for "Buried power rail directly contacting backside power delivery network" (New York Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,814, issued on March 3, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Buried power rail directly contacting backside power delivery network" was invented by Somnath Ghosh (Clifton Park, N.Y.), Fee Li Lie (Albany, N.Y.), Ruilong Xie (Niskayuna, N.Y.) and Kisik Choi (Watervliet, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An approach to form a semiconductor structure with a plurality of buried power rails in a semiconductor substrate where at least one buried power rail extends below the backside of the semiconductor substrate. The semiconductor structure provides at least one portion of the first metal layer of the ba...