US Patent Issued to MURATA MANUFACTURING on Feb. 25 for "Solidly-mounted transversely-excited film bulk acoustic filters with multiple piezoelectric plate thicknesses" (American, Bulgarian Inventors)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,827, issued on Feb. 25, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).

"Solidly-mounted transversely-excited film bulk acoustic filters with multiple piezoelectric plate thicknesses" was invented by Ventsislav Yantchev (Sofia, Bulgaria), Patrick Turner (San Bruno, Calif.) and Robert B. Hammond (Santa Barbara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Filters and methods of making filters are disclosed. A filter device includes a substrate, a piezoelectric plate, and an acoustic Bragg reflector between a surface of the substrate and a back surface of the piezoelectric plate. A first portion of the piezoelectric plate h...