Piezoelectric element formation member incorporated in...

Details Piezoelectric element formation member incorporated in... Piezoelectric element formation member incorporated in...

2006-09-05

2006-09-05

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S366000

Reexamination Certificate

active

07102273

ABSTRACT:
First internal electrode layers and second internal electrode layers are alternately laminated in a substrate while sandwiching piezoelectric layers therebetween. The first internal electrode layers are exposed to at least a first end face of the substrate, and the second internal electrode layers are exposed to at least a second end face of the substrate which is opposite to the first end face. A first external electrode layer is formed on the first end face and a third end face connecting the first end face and the second end face. The first external electrode layer is electrically connected to the first internal electrode layers. A second external electrode layer is formed on at least the second end face and the third end face. The second external electrode layer is electrically connected to the second internal electrode layers, and is electrically independent from the first external electrode layer. The first external electrode layer and the first internal electrode layers are to be divided by slits extending from the first end face to form a plurality of piezoelectric elements arrayed in a first direction. A part of the first external electrode layer and a part of the second external electrode layer are adjacent in the first direction on the third end face.

REFERENCES:
patent: 6700307 (2004-03-01), Kitahara
patent: 6747396 (2004-06-01), Blom
patent: 2001/0017503 (2001-08-01), Kitahara
patent: 2003/0020371 (2003-01-01), Nakatani
patent: 2003/0042821 (2003-03-01), Blom et al.
patent: 2000-94677 (2000-04-01), None
patent: 2001-277525 (2001-10-01), None

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