Piezoelectric vibration element and piezoelectric device

Details Piezoelectric vibration element and piezoelectric device Piezoelectric vibration element and piezoelectric device

2006-06-28

2009-06-23

Leung, Quyen P (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S321000

Reexamination Certificate

active

07550905

ABSTRACT:
A piezoelectric vibration element having a favorable drive level characteristic for miniaturization, and a piezoelectric oscillator. The piezoelectric vibration element includes a base made of a piezoelectric material, a plurality of vibration arms extended from the base, a long groove formed along a longitudinal direction of a main surface of each of the plurality of vibration arms, and an exciting electrode provided inside the long groove. A center position in a width dimension of the long groove is decentered in a minus X-axis direction from a center position of an arm width dimension.

REFERENCES:
patent: 6806797 (2004-10-01), Kikushima
patent: 2001/0054860 (2001-12-01), Knowles
patent: 2005/0017604 (2005-01-01), Yamada
patent: 2002-261575 (2002-09-01), None
patent: 2004-007428 (2004-01-01), None

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