ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,983, issued on July 14, was assigned to Qorvo US Inc. (Greensboro, N.C.).

"Detection of sensor passivation failure" was invented by Cody Rombach (Medford, Ore.), Matthew Wasilik (Plano, Texas) and Buu Quoc Diep (Murphy, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments described herein involve a test structure for a sensor, comprising a substrate being part of the sensor and a moat structure disposed on the substrate. The sensor comprises a resonating structure comprising a piezoelectric layer having an active region. A passivation layer overlays the resonating structure including the active region. The moat structure is configured to...