Patent ID: 11916535
Assignee: SKYWORKS GLOBAL PTE. LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method for fabricating an acoustic resonator device, the method comprising:
providing or forming a substrate;
forming an acoustic resonator over the substrate, such that first and second electrodes are over the substrate, and a piezoelectric layer is between the first and second electrodes that are configured to provide a resonator shape defined by an outline of an overlap of the first and second electrodes, the resonator shape including N smooth curves joined by N vertices of an N-sided polygon having an inside, each vertex joining two neighboring smooth curves such that the two neighboring smooth curves combined is not a smooth curve due to the respective vertex, each smooth curve having a concave shape with respect to the inside of the N-sided polygon, the resonator shape configured to have no axis of symmetry.