Patent ID: 8089195

Claim:
An integrated circuit device comprising: a circuit element comprising a resonator element having at least a first bottom electrode and second top electrode and a piezoelectric material interposed therebetween and an acoustic confinement structure comprising adjacent layers of low and high acoustic impedance material, wherein the resonator element is embedded in the acoustic confinement structure; an integrated circuit component comprising a semiconductor substrate with a plurality of semiconductor device elements formed thereon and at least one metal interconnect layer formed over the plurality of semiconductor elements; wherein the circuit element is monolithically integrated with the integrated circuit element through at least one metal via electrically interconnecting one of the first or second electrodes with a selected one of the at least one metal interconnect layers and wherein the at least one metal interconnect layer is formed in a dielectric layer and wherein the low acoustic impedance material is part of the dielectric layer and the via is formed through the dielectric layer to interconnect the electrode with one of the at least one metal interconnect layers.