Patent ID: 11870422
Assignee: AKOUSTIS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device comprising:
a piezoelectric layer on a substrate and comprising a portion included in an acoustic resonator;
a first conductive layer on the piezoelectric layer and comprising a first electrode of the acoustic resonator on a first side of resonator portion of the piezoelectric layer;
a second conductive layer on the piezoelectric layer and comprising a second electrode of the acoustic resonator on a second side of the resonator portion of the piezoelectric layer;
an insulating layer on the second conductive layer; and
an interconnection metal layer electrically connected to the second conductive layer or the first conductive layer and having a portion extending onto the insulating layer and overlapping a portion of the second conductive layer to provide a first capacitor electrode of a capacitor disposed laterally adjacent the acoustic resonator, coupled to the first electrode and/or the second electrode and having a portion of the second conductive layer as a second capacitor electrode of the capacitor and a portion of the insulating layer between the first and second capacitor electrodes as a dielectric of the capacitor, wherein the acoustic resonator comprises a first acoustic resonator and a second acoustic resonator coupled in series and wherein the capacitor is coupled across the series combination of the first acoustic resonator and the second acoustic resonator.