Stacked piezoelectric element and method of fabrication thereof

Details Stacked piezoelectric element and method of fabrication thereof Stacked piezoelectric element and method of fabrication thereof

2007-11-13

2007-11-13

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

11312487

ABSTRACT:
This invention provides a stacked piezoelectric element that has excellent durability and reliability by ensuring reliable electrical conduction between internal electrode layer and conductive adhesive, and a method of fabricating such a stacked piezoelectric element, wherein the stacked piezoelectric element1comprises: a ceramic stack10constructed by alternately stacking piezoelectric layers11made of a piezoelectric material and internal electrode layers21, 22having electrical conductivity; and external electrodes32bonded to the side faces101and102of the ceramic stack10via an electrically conductive adhesive31. The side faces101and102of the ceramic stack10are provided with electrode recesses23each formed by indenting a portion of the edge of each of the internal electrode layers21, 22in the stacking direction thereof thereby forming a gap between it and the overlying piezoelectric layer11, and the conductive adhesive31is applied so as to enter the electrode recesses23from the side faces101and102of the ceramic stack10.

REFERENCES:
patent: 7225514 (2007-06-01), Iwase et al.
patent: 2002/0043901 (2002-04-01), Kihara et al.
patent: 2004/0169442 (2004-09-01), Senoo et al.
patent: 2004/0178701 (2004-09-01), Sato et al.
patent: 2005/0168106 (2005-08-01), Iwase et al.
patent: 2005/0231074 (2005-10-01), Iwase et al.
patent: 2005/0264138 (2005-12-01), Ohmori et al.
patent: 6-232474 (1994-08-01), None
patent: 7-154006 (1995-06-01), None
patent: 7-162049 (1995-06-01), None
patent: 2001-210886 (2001-08-01), None
patent: 2002-285937 (2002-10-01), None
patent: 2003-243738 (2003-08-01), None
patent: 2004-95593 (2004-03-01), None
patent: 2004-297043 (2004-10-01), None

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