Patent ID: 8736145

Claim:
A micro or nano electromechanical transducer device formed on a semiconductor substrate comprising: a movable structure being arranged to be movable in response to actuation of an actuating structure and comprising: a mechanical structure having at least one mechanical layer having a first thermal response characteristic; at least one layer of the actuating structure, the at least one layer having a second thermal response characteristic different to the first thermal response characteristic; and a thermal compensation structure having at least one thermal compensation layer being different to the at least one layer of the actuating structure, and wherein the thermal compensation structure is arranged to compensate a thermal effect produced by the mechanical structure and the at least one layer of the actuating structure such that movement of the movable structure is substantially independent of variations in temperature; wherein the actuating structure includes a plurality of layers including a magnetic layer and the plurality of layers form part of the movable structure, the movable structure being movable in response to magnetic actuation plurality of layers.