Piezoelectric resonator component

Piezoelectric resonator component

  • CN 1,574,622 A
  • Filed: 05/12/2004
  • Published: 02/02/2005
  • Est. Priority Date: 05/30/2003
  • Status: Active Grant
First Claim
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1. piezoelectric resonance component comprises:

  • The energy trap type piezo-electric resonator, it utilizes the triple-frequency harmonics of thickness longitudinal vibration, and comprise piezoelectric substrate with first and second first type surfaces, and polarized at thickness direction between first and second first type surface, described first and second vibrating electrodes about be located at therebetween piezoelectric substrate toward each other;

    WithThe first and second shell substrates, be layered in respectively on piezo-electric resonator first and second first type surfaces, thereby the formation cavity, and be arranged to make the first and second shell substrates not disturb first and second vibrating electrodes by the piezoelectric substrate vibration of position oscillating component toward each other;

    WhereinBeing dimensioned to of first and second vibrating electrodes is in approximately ±

    5 in the degree scope difference of the phase place peak value of the S0 of thickness longitudinal vibration first-harmonic and S1 mould.

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