Macronix and IBM Assigned Patent

Macronix International Co., Ltd., Hsinchu, Taiwan, and International Business Machines Coroporation, Armonk, NY, has been assigned a patent (9,793,323) developed by Lung, Hsiang-Lan, Ardsley, NY, Kim, Wanki, White Plains, NY, Brightsky, Matthew J., Pound Ridge, NY, and Lam, Chung Hon, Peekskill, NY, for a “phase change memory with high endurance.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A plurality of memory cells in a cross-point array with improved endurance is disclosed. Each memory cell, disposed between first and second conductors, includes a switch in series with a pillar of phase change material. The pillar has a Te-rich material at one end proximal to the second conductor, and an Sb-rich material at the other end proximal to the first conductor, wherein the current direction is from the first conductor to the second conductor.”

The patent application was filed on July 11, 2016 (15/207,022)