Patent ID: 8541850
Filing Date: 2013-09-24
Classification: H03H

Abstract:
1. A method of forming a microelectromechanical system (MEMS) device, comprising: forming a sacrificial layer over a substrate including one or more integrated circuits; selectively patterning the sacrificial layer to form at least one gap; forming a hinge layer over the patterned first sacrificial layer including within the at least one gap; forming a bulk layer over the hinge layer including over the hinge layer within the at least one gap; selectively patterning the bulk layer to define a resonator supported on the hinge layer and laterally spaced by at least one flexure portion of the hinge layer from at least one support post; forming at least a portion of an electrode spaced from the resonator; and removing remaining portions of the sacrificial layer, leaving the resonator supported by the at least one support post at the at least one flexure portion of the hinge layer; whereby a changing electrostatic field generated by first and second electrical signals respectively communicated from the one or more integrated circuits to the electrode and to the resonator can drive an oscillation of the resonator at a resonance frequency along an axis.