Metal working – Piezoelectric device making
Reexamination Certificate
2007-08-14
2007-08-14
Tugbang, A. Dexter (Department: 3729)
Metal working
Piezoelectric device making
C029S840000, C029S843000, C029S846000, C029S847000, C310S311000, 28
Reexamination Certificate
active
10686718
ABSTRACT:
A piezoelectric resonator is assembled so that a gap is formed between a resonator element and a plug using a connecting layer formed with a conductive resin, with flattened leads having leading end portions opening in a U-shape. This piezoelectric resonator permits absorption of an impact by elasticity of the leading end portions. Further, operability can be increased by forming a temporary fixing layer using a UV-setting type resin between the leading end portions and the resonator element, or coating a silver past on one of the leading end portions and the resonator element prior to forming a connecting layer. It is thus possible to mass-produce a piezoelectric resonator unit high in impact resistance and reliability with only slight variations of frequency when exposed to high temperatures.
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Nguyen Tai Van
Oliff & Berridg,e PLC
Tugbang A. Dexter
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