Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1997-04-30
2000-05-16
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, 310366, H01L 4108
Patent
active
060641428
ABSTRACT:
A piezoelectric resonator is capable of being mounted without any directional restriction. The piezoelectric resonator includes a laminated body having two groups of internal electrodes which are alternately laminated with piezoelectric layers interposed therebetween. Strips of first insulating film are disposed on two of the four side surfaces of the laminated body, which two side surfaces are perpendicular to each other. Strips of second insulating film are disposed on the other two side surfaces of the laminated body arranged perpendicular to each other. A first external electrode is disposed on one of the two side surfaces on which the first insulating film is disposed, and a second external electrode is disposed on the other of the two side surfaces. The first and second external electrodes are connected to the second group of internal electrodes. On the other hand, another first external electrode is provided on one of the two side surfaces on which the second insulating film is formed, and another second external electrode is disposed on the other of these two side surfaces. These first and second external electrodes are connected to the first group of internal electrodes.
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Budd Mark O.
Murata Manufacturing Co. Ltd.
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