ALEXANDRIA, Va., June 16 -- United States Patent no. 12,310,264, issued on May 20, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).

"Phase change memory using multiple phase change layers and multiple heat conductors" was invented by Injo Ok (Loudonville, N.Y.), Balasubramanian Pranatharthiharan (Santa Clara, Calif.), Kevin W. Brew (Niskayuna, N.Y.) and Wei Wang (Yorktown Heights, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is presented for reducing a reset current for a phase change memory (PCM). The method includes forming a bottom electrode, constructing a PCM cell structure including a plurality of phase change memory layers and a plurality of heat transfer layers, w...