Piezoelectric device and method for manufacturing the same

Details Piezoelectric device and method for manufacturing the same Piezoelectric device and method for manufacturing the same

2008-08-29

2010-06-08

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S349000, C310S351000, C310S365000

Reexamination Certificate

active

07732995

ABSTRACT:
A piezoelectric device includes: a lower substrate; an upper substrate; an intermediate substrate sandwiched between the lower substrate and the upper substrate, the intermediate substrate including: a piezoelectric vibrating portion; a frame surrounding a periphery of the piezoelectric vibrating portion; a connecting portion coupling the piezoelectric vibrating portion and the frame; a first exciting electrode disposed on an upper surface of the piezoelectric vibrating portion; a second exciting electrode disposed on a lower surface of the piezoelectric vibrating portion; a first wiring line electrically coupled to the first exciting electrode; and a second wiring line electrically coupled to the second exciting electrode; and an inside surface coupling an upper surface and a lower surface of the frame and having a slanted surface having an interior angle with respect to one of the upper surface and the lower surface, the angle being 90 degrees or more. In the oscillator, one of the first wiring line and the second wiring line is disposed to a surface of the slanted surface.

REFERENCES:
patent: 2676275 (1954-04-01), Bigler
patent: 2004/0174092 (2004-09-01), Iwata
patent: 2006/0192460 (2006-08-01), Tanaka
patent: 2009/0153257 (2009-06-01), Matsuo
patent: 2 202 989 (1988-10-01), None
patent: 62-150188 (1987-07-01), None
patent: A-2006-94372 (2006-04-01), None
patent: 2006-254210 (2006-09-01), None

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