US Patent Issued to International Business Machines on July 1 for "Conical magnetic random access memory pillar structures" (New York, South Carolina Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,349,597, issued on July 1, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Conical magnetic random access memory pillar structures" was invented by Oscar Van Der Straten (Guilderland Center, N.Y.), Koichi Motoyama (Clifton Park, N.Y.), Joseph F Maniscalco (Greenville, S.C.) and Chih-Chao Yang (Glenmont, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An MRAM device is provided. The MRAM device includes a first electrode, an MRAM stack formed on the first electrode, a hardmask structure formed on the MRAM stack, and a second electrode formed on the hardmask structure. A width of an upper portion of the hardmask structure is less...