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IBM and Macronix Assigned Patent

Phase-change memory cell with improved phase-change material

International Business Machines Corporation, Armonk, NY, and Macronix International Company Ltd., Hsinchu, Taiwan, has been assigned a patent (9,257,643) developed by Cheng, Huai-Yu, White Plains, NY, and Raoux, Simone, New York, NY, for a “phase change memory cell with improved phase change material.

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A phase change memory cell. The phase change memory cell includes a substrate and a phase change material. The phase change material is deposited on the substrate for performing a phase change function in the phase change memory cell. The phase change material is an alloy having a mass density change of less than three percent during a transition between an amorphous phase and a crystalline phase.

The patent application was filed on August 16, 2013 (13/968,529).

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