ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,294, issued on Nov. 4, was assigned to STMICROELECTRONICS S.r.l. (Agrate Brianza, Italy).
"Membrane microelectromechanical electroacoustic transducer" was invented by Fabrizio Cerini (Magenta, Italy), Silvia Adorno (Novate Milanese, Italy) and Marco Salina (Cremosano, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A microelectromechanical electroacoustic transducer includes a supporting frame of semiconductor material, a membrane of semiconductor material, connected to the supporting frame along a perimeter and having central symmetry, and a piezoelectric actuator on a peripheral portion of the membrane. The membrane has through slits of elonga...