US Patent Issued to Qorvo US on April 7 for "Piezoelectric bulk layers with tilted c-axis orientation and methods for making the same" (Texas, Oregon Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,597,902, issued on April 7, was assigned to Qorvo US Inc. (Greensboro, N.C.).

"Piezoelectric bulk layers with tilted c-axis orientation and methods for making the same" was invented by Derya Deniz (McKinney, Texas), Robert Kraft (Plano, Texas) and John Belsick (Bend, Ore.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Bulk acoustic wave resonator structures include a bulk layer with inclined c-axis hexagonal crystal structure piezoelectric material supported by a substrate. The bulk layer may be prepared without first depositing a seed layer on the substrate. The bulk material layer has a c-axis tilt of about 32 degrees or greater. The bulk material lay...