An electrostatic actuator having a stationary electrode and a fixedly cantilevered bender is described, wherein the bender includes a cantilever electrode disposed opposite to the stationary electrode in an overlapping area and being deflectable in the direction of the stationary electrode. The pressure sensing valve is connected between the condenser and the evaporator. The column decoder is adapted to receive an address of a memory cell to which data is to be written or from which data is to be read. By growing tensile-strained GaNAs barrier layers, a larger active region with multiple quantum wells can be formed increasing the optical gain of the device. Next, a second adhesive layer is deposited on the interposer.