Patent ID: 8791776

Claim:
An acoustic wave resonator, comprising: (a) a substrate; (b) an acoustic isolator formed in or on the substrate, having a perimeter defining a first edge and an opposite, second edge; (c) a first electrode formed on the acoustic isolator; (d) a piezoelectric layer formed on the first electrode; (e) a second electrode formed on the piezoelectric layer, having a perimeter defining a first edge and an opposite, second edge, wherein the perimeter of the second electrode is aligned inside the perimeter of the acoustic isolator; and (f) a gasket formed on the piezoelectric layer such that the gasket surrounds the perimeter of the second electrode and is aligned inside the perimeter of the acoustic isolator, wherein the gasket is formed of a metal material, and wherein a gap defined by a distance between the gasket and the perimeter of the second electrode is filled with a non-conductive material.