ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,611, issued on March 18, was assigned to RF360 Singapore Pte. Ltd. (Singapore).
"Thin-film saw device with multilayer waveguide" was invented by Michael Smirnow (Munich) and Matthias Knapp (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "In at least one embodiment, the SAW device comprises a carrier substrate (1), a piezoelectric thin-film (2) on the carrier substrate, an interdigital electrode structure (3) on the piezoelectric thin-film and a layer stack (4) of waveguide layers. The layer stack is arranged between the carrier substrate and the piezoelectric thin-film. The layer stack comprises a first waveguide layer (41) and second wavegui...