ALEXANDRIA, Va., July 21 -- United States Patent no. 12,690,435, issued on July 21, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).

"Self-aligned contact based via to backside power rail" was invented by Tao Li (Slingerlands, N.Y.), Richard C. Johnson (Selkirk, 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: "According to the embodiment of the present invention, a semiconductor device includes a first nanodevice and a second nanodevice. The second nanodevice is adjacent to and parallel to the first nanodevice along an x-axis. A dielectric fill is located between the first nanodevice and the second nanodevice. A dielectr...