Tunable bulk acoustic wave mems microresonator
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Abstract
A suspended film bulk acoustic micro-resonator that includes a beam made of a piezoelectric material fixed to a support and sandwiched between excitation electrodes. The resonator also includes a mechanism modifying limiting conditions of the resonator composed of the excited beam to modify the micro-resonator resonant frequency.
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Citations
46 Claims
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1-23. -23. (canceled)
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24. A suspended film bulk acoustic micro-resonator, comprising:
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a beam made of a piezoelectric material fixed to a support and with a thickness selected to operate at a given resonant frequency, the beam being sandwiched in a direction of its thickness between excitation electrodes; and
means for modifying limiting conditions of the resonator composed of the excited beam to modify the resonant frequency. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification