Patent ID: 8319584

Claim:
A contour mode micromechanical piezoelectric resonator, comprising: a first electrode; a second electrode; a piezoelectric layer disposed between the first electrode and the second electrode, wherein the piezoelectric layer comprises a planar surface having a cantilevered periphery, and wherein the piezoelectric layer is configured to undergo in-plane lateral displacement at the periphery in response to application of an electric field to the piezoelectric layer by the first and second electrodes, the in-plane lateral displacement having a fundamental frequency determined by dimensions of at least one of the electrodes; a first effective quarter-wavelength tether coupling the piezoelectric resonator to a substrate at a first side of the piezoelectric resonator; and a second effective quarter-wavelength tether coupling the piezoelectric resonator to the substrate at a second, substantially opposite side of the piezoelectric resonator.