摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator with improved reliability at high temperature and humidity over conventional ones and reduced in failures due to cracks or the like occurring due to concentration of stress. SOLUTION: The piezoelectric vibrator consists of a thin and planar shim material formed like a disk, two piezoelectric elements having electrodes provided on the front and rear faces of a piezoelectric body formed like a disk with a smaller diameter than that of the shim material, and two flexible substrates with a conductor of the same size as the electrode on the front face of the piezoelectric element added to an internal surface of a coating layer having a cord extending from one point. The electrode on the rear face of the piezoelectric element is brought into contact with both surfaces of the shim material, and the flexible substrate is put over the electrode on the front face of the piezoelectric element for pressurizing and adhering. COPYRIGHT: (C)2006,JPO&NCIPI
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