US Patent Issued to International Business Machines on Feb. 17 for "Magnetic tunnel junction device" (New York Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,556, issued on Feb. 17, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Magnetic tunnel junction device" was invented by Timothy Mathew Philip (Albany, N.Y.), Ching-Tzu Chen (Ossining, N.Y.), Kevin W. Brew (Niskayuna, N.Y.), Jin Ping Han (Yorktown Heights, N.Y.) and Injo Ok (Albany, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of present invention provide a magnetic tunnel junction (MTJ) structure. The MTJ structure includes a MTJ stack, the MTJ stack including a tunnel barrier layer on a reference layer and a free layer on the tunnel barrier layer, wherein the free layer includes multiple sub free layers, t...