Patent ID: 8115573
Filing Date: 2012-02-14
Classification: H03H,H03J

Abstract:
1. A microelectromechanical system (MEMS) comprising: a first anchor region; a vibrating MEMS structure fixed to the first anchor region, the vibrating MEMS structure configured to be charged with a first bias voltage; a first electrode adjacent the vibrating MEMS structure, the first electrode configured to be charged with the first bias voltage; and a second electrode adjacent the vibrating MEMS structure wherein the vibrating MEMS structure is between the first electrode and the second electrode, the second electrode configured to be charged with a second bias voltage, wherein the first bias voltage shifts a resonance frequency of the vibrating MEMS structure from a first resonance frequency to a second resonance frequency, and wherein the second bias voltage shifts the resonance frequency of the vibrating MEMS structure from the second resonance frequency to a third resonance frequency.