ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,543,588, issued on Feb. 3, was assigned to TEXAS INSTRUMENTS Inc. (Dallas).
"Alloy for metal undercut reduction" was invented by Rafael Jose Guevara (Makati, Philippines) and Jessamae Grate (Mabalacat, Philippines).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes forming a seed layer on a substrate. The seed layer includes a first metal. The method also includes forming a first metal layer over the seed layer. The first metal layer includes a second metal. The method further includes forming a second metal layer over the first metal layer. The second metal layer includes the first metal. The method includes converting at least a portion of...