US Patent Issued to International Business Machines on June 30 for "Transistors with via-to-backside power rail spacers" (New York, Minnesota Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,672,531, issued on June 30, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Transistors with via-to-backside power rail spacers" was invented by Tao Li (Slingerlands, N.Y.), Liqiao Qin (Albany, N.Y.), Devika Sarkar Grant (Amsterdam, N.Y.), Nikhil Jain (Apple Valley, Minn.), Prabudhya Roy Chowdhury (Albany, N.Y.), Sagarika Mukesh (Albany, N.Y.), Kisik Choi (Watervliet, N.Y.) and Ruilong Xie (Niskayuna, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor structure includes a source/drain region; a frontside source/drain contact disposed on the source/drain region, a via-to-backside power rail disposed on the frontsid...