ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,672, issued on April 21, was assigned to Soitec (Bernin, France).
"Transducer structure for an acoustic wave device" was invented by Sylvain Ballandras (Besancon, France), Emilie Courjon (Franois, France) and Florent Bernard (Besancon, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transducer structure for a surface acoustic device comprises a composite substrate comprising a piezoelectric layer, a pair of inter-digitated comb electrodes, comprising a plurality of electrode means with a pitch p satisfying the Bragg condition, wherein the inter-digitated comb electrodes are embedded in the piezoelectric layer such that, in use, the excitati...