Stacked piezoelectric element, production method thereof and...

Details Stacked piezoelectric element, production method thereof and... Stacked piezoelectric element, production method thereof and...

2007-04-17

2007-04-17

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S328000, C310S340000, C310S366000

Reexamination Certificate

active

11212563

ABSTRACT:
An object of the present invention is to provide a stacked piezoelectric element with excellent reliability and durability, a production method thereof and an electrically conducting adhesive.A stacked piezoelectric element comprising a ceramic stack obtained by alternately stacking a piezoelectric layer comprising a piezoelectric material and an internal electrode layer having electrical conductivity, and an electrically conducting adhesive layer provided to allow for electrical conduction to said internal electrode layer of the same polarity on the side surface of said ceramic stack,wherein said electrically conducting adhesive layer comprises a base resin having dispersed therein an electrically conducting filler and microparticles, andthe boundary between said microparticle and said base resin is in a state that a void is formed at least in a part between those two members or in a state that when said base resin is elongated, a void can be formed between those two members.

REFERENCES:
patent: 5406164 (1995-04-01), Okawa et al.
patent: 2001/0026114 (2001-10-01), Takao et al.
patent: 2000-77733 (2000-03-01), None
patent: 2001-284668 (2001-10-01), None

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