ELECTROMECHANICAL TRANSDUCER DEVICE HAVING THERMAL COMPENSATION AND METHOD OF MANUFACTURE

摘要

A micro or nano electromechanical transducer device (200) formed on a semiconductor substrate comprises a movable structure (203) which is arranged to be movable in response to actuation of an actuating structure. The movable structure comprises a mechanical structure having at least one mechanical layer (204) having a first thermal response characteristic, at least one layer (202) of the actuating structure 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 (206). The thermal compensation layer is different to the at least one layer (202) and is arranged to compensate a thermal effect produced by the mechanical layer and the at least one layer of the actuating structure such that the movement of the movable structure is substantially independent of variations in temperature.