Self-polarized capacitive micromechanical resonator apparatus and fabrication method

摘要

The present invention is directed towards a self-polarized capacitive micromechanical resonator apparatus and fabrication method. The apparatus includes a body member capable of retaining a polarization charge in the absence of a polarization voltage source. By creating potential wells or charge traps on the surface of the resonant body member through a nitrogen diffusing process, charges may be trapped in the charge traps. Unless perturbed externally, the charges remain trapped thus enabling a self-polarization technique without the need for any externally applied polarization voltage.