Piezoelectric resonator and electronic component including same

Details Piezoelectric resonator and electronic component including same Piezoelectric resonator and electronic component including same

1998-08-20

2000-08-29

Ponomarenko, Nicholas

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H01L 4104

Patent

active

061113433

ABSTRACT:
A piezoelectric resonator includes a base member including a plurality of laminated piezoelectric layers and internal electrodes. The adjacent piezoelectric layers are polarized in different directions with an internal electrode disposed therebetween. A groove is provided on one lateral surface of the base member, and every other internal electrode is exposed at both sides of the groove. Insulating films are disposed on unexposed portions of the internal electrodes. External electrodes are provided on both sides of the groove in the base member and are connected to the internal electrodes. As a result of this structure, the piezoelectric resonator prevents a reduction in the difference .DELTA.F between the resonant frequency and the anti-resonant frequency.

REFERENCES:
patent: 5153477 (1992-10-01), Jomura et al.
patent: 5406164 (1995-04-01), Okawa et al.
patent: 5459371 (1995-10-01), Okawa et al.
patent: 5925971 (1999-07-01), Unami

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