Patent ID: 8947176
Filing Date: 2015-02-03
Classification: H03H

Abstract:
1. An electromechanical resonator produced on a substrate, comprising: a suspended structure produced at least partly from a layer of the substrate, configured to be vibrated to resonate in Lamé mode or in wine-glass mode at at least one natural resonance frequency of the suspended structure; an anchor structure to anchor the suspended structure, by at least one area of its periphery, to a remainder of the substrate, wherein the anchor structure is dimensioned to resonate at the resonance frequency, or at a frequency that is a multiple of the resonance frequency; means for exciting the suspended structure, to cause it to vibrate at the resonance frequency; and means for detecting the vibration frequency of the suspended structure, wherein the anchor structure includes at least one T-shaped element formed from the layer of the substrate as a first fixed-fixed beam, which resonates at the resonance frequency, or at the frequency that is a multiple of the resonance frequency, and a second beam, a first end of which is coupled with the first beam, and a second end of which is coupled with the suspended structure, and wherein the first end of the second beam is coupled with the first beam at a node of vibration of the first beam, and the second end of the second beam is coupled with the suspended structure at a nodal point of the suspended structure.