ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,400,698, issued on Aug. 26, was assigned to International Business Machines Corp. (Armonk, N.Y.).
"MRAM device with octagon profile" was invented by Oscar van der Straten (Guilderland Center, N.Y.), Chih-Chao Yang (Glenmont, N.Y.) and Koichi Motoyama (Clifton Park, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic tunnel junction cell, a cross section with octagon profile, vertically aligned layers of a top electrode, a free layer, a tunneling barrier, a reference layer, a bottom electrode with tapered side surface with a width at an upper surface greater than a width at a lower surface, the reference layer with vertical side surface perpen...