Patent ID: 11870416
Assignee: QXONIX, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 27:
28. An acoustic wave device comprising:
a substrate;
a first piezoelectric layer having a first piezoelectric axis orientation;
a second piezoelectric layer acoustically coupled to the first piezoelectric layer, the second piezoelectric layer having a second piezoelectric axis orientation that is antiparallel to the first piezoelectric axis orientation; and
a first metal acoustic wave reflector electrically interfacing with the first piezoelectric layer, the first metal acoustic wave reflector comprising a first pair of metal layers, the first metal acoustic wave reflector including at least a patterned layer, the patterned layer including at least a step mass feature acoustically coupled with the first and second piezoelectric layers.