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Patent Searching and Data


Title:
PIEZOELECTRIC RESONATOR INCORPORATING CAPACITOR
Document Type and Number:
Japanese Patent JP2001044796
Kind Code:
A
Abstract:

To provide a piezoelectric resonator having a capacitor where the entire resonator is made thinner than the thin profile of a resonance element at the same time the profile of the resonator element is made thin.

The piezoelectric resonator is provided with a plate-shaped capacitor 14 and a resonance element 11 where piezoelectric layers 13a, 13b and electrodes 15b, 12a, 12b are alternately laminated on the capacitor 14 and that is operated in a thickness longitudinal vibration mode. The resonance element 11 has an even number of piezoelectric layers and the vibration of the vertically adjacent piezoelectric layers 13a, 13b is inverted in the vibration phase.


Inventors:
NISHIMURA MICHIAKI
YOSHIMURA KENICHI
Application Number:
JP21278999A
Publication Date:
February 16, 2001
Filing Date:
July 27, 1999
Export Citation:
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Assignee:
KYOCERA CORP
International Classes:
H03H9/02; H03H9/10; H03H9/205; (IPC1-7): H03H9/205; H03H9/02; H03H9/10