US Patent Issued to STMicroelectronics International on Nov. 11 for "PMUT array with presence of separate sensing small PZT on membranes edge" (Italian Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,948, issued on Nov. 11, was assigned to STMicroelectronics International N.V. (Geneva).

"PMUT array with presence of separate sensing small PZT on membranes edge" was invented by Domenico Giusti (Caponago, Italy), Marco Ferrera (Concoerezzo, Italy) and Fabio Quaglia (Pizzale, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is an array of ultrasound devices. Each ultrasound device includes a first piezoelectric stack carried by a membrane and forming, together with the membrane, a first piezoelectric micromachined ultrasonic transducer (PMUT), and a plurality of second piezoelectric stacks carried by the membrane and positioned ...