US Patent Issued to Murata Manufacturing on April 1 for "Transversely-excited film bulk acoustic resonators with three-layer electrodes" (American, Finnish Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,267,062, issued on April 1, was assigned to Murata Manufacturing Co. Ltd. (Nagaokakyo, Japan).

"Transversely-excited film bulk acoustic resonators with three-layer electrodes" was invented by Julius Koskela (Helsinki) and Bryant Garcia (Burlingame, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is disclosed acoustic resonators and filter devices. An acoustic resonator includes a substrate having a surface and a single-crystal piezoelectric plate having front and back surfaces, the back surface attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. An...