ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,271, issued on Sept. 16, was assigned to Skyworks Solutions Inc. (Irvine, Calif.).

"Raised and recessed frames on bottom and top plates of a BAW resonator" was invented by Stephen Joseph Kovacic (Newport Beach, Calif.) and Benjamin Paul Abbott (Irvine, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A film bulk acoustic wave resonator comprising a piezoelectric film having a central region defining a main active domain in which a main acoustic wave is generated during operation, an upper electrode disposed on a top surface of the piezoelectric film, a lower electrode disposed on a lower surface of the piezoelectric film, a dielectric material...