Patent ID: 6469597
Filing Date: 2002-10-22
Classification: H03H,Y10T

Abstract:
A method of fabricating resonators on a substrate, the method comprising:fabricating a bottom loading electrode; fabricating a first bottom core electrode and a second bottom core electrode, the first bottom core electrode completely bridging a cavity and fabricated over the bottom loading electrode that also completely bridges the cavity, the first bottom core electrode together with the bottom loading electrode defining a first bottom electrode, and the second bottom core electrode defining a second bottom electrode; fabricating a piezoelectric (PZ) layer; fabricating a first top electrode such that a first portion of the PZ layer is sandwiched between the first top electrode on one side and the first bottom electrode on the other side, forming a first resonator; and fabricating a second top electrode such that a second portion of the PZ layer is sandwiched between the second top electrode on one side and the second bottom electrode on the other side, forming a second resonator.