Abstract:We report laser probing results on a set of piezoelectrically actuated square plate MEMS resonators. The plate size of the resonators is systematically varied in order to study the frequency scaling of the main, square-extensional resonance mode in the range between 13-30 MHz. In electrical impedance measurements, an unexpected splitting of the main mode branch into two separate mode branches is observed at intermediate plate size dimensions. To get further insight of the origin of the splitting phenomenon, th… Show more
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