ALEXANDRIA, Va., July 16 -- United States Patent no. 12,364,174, issued on July 15, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Global heater for phase change memory" was invented by Nanbo Gong (White Plains, N.Y.), Takashi Ando (Eastchester, N.Y.), Alexander Reznicek (Troy, N.Y.) and Bahman Hekmatshoartabari (White Plains, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present invention include a phase change memory (PCM) array. The PCM array may include a plurality of PCM cells. Each PCM cell in the plurality of PCM cells may include a top electrode, a resistive element, and a bottom electrode. The PCM array may also include a global heater surrounding the...