Patent ID: 6966111

Claim:
A method of fabricating a micro-electromechanical systems device that is positioned on a wafer substrate that incorporates drive circuitry, the method comprising the steps of depositing a first sacrificial layer of an organic material on the wafer substrate, etching the first sacrificial layer to define a required pattern, depositing a layer of a conductive material on the first sacrificial layer, etching the layer of conductive material to define a required structure, depositing at least one subsequent sacrificial layer of an organic material on the layer of conductive material, etching said at least one subsequent sacrificial layer to define a further required pattern, depositing a structural layer of a dielectric material on the subsequent sacrificial layer, etching the structural layer to define a further required structure, and removing the first and the at least one subsequent sacrificial layers to release micro-electromechanical structures defined by the layer of conductive material and the structural layer, wherein the steps of depositing and etching the first and the at least one subsequent sacrificial layers and the conductive materials and removing the first and the at least one subsequent sacrificial layers are carried out so that the conductive material defines an actuator that is electrically connected to the drive circuitry.