ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,672, issued on April 14, was assigned to International Business Machines Corp. (Armonk, N.Y.).
"MRAM refill device structure" was invented by Oscar van der Straten (Guilderland Center, N.Y.), Praneet Adusumilli (Somerset, N.J.) and Chih-Chao Yang (Glenmont, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of present invention provide a method of forming a MRAM structure. The method includes forming a dielectric layer on top of a bottom contact; creating an opening in the dielectric layer, the opening has a slant top edge; filling a bottom portion of the opening to form a bottom electrode; filling a top portion of the opening with a f...