The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2005
Filed:
Apr. 18, 2002
Applicants:
Dieter Cramer, München, DE;
Carsten Schuh, Baldham, DE;
Inventors:
Dieter Cramer, München, DE;
Carsten Schuh, Baldham, DE;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L041/083 ;
U.S. Cl.
CPC ...
Abstract
A piezoelectric component has a multilayer structure. The piezoelectric component includes piezoelectric ceramic layers, electrode layers arranged among the ceramic layers in a stack such that the electrode layers and the piezoelectric ceramic layers alternate in the stack, and a passivation layer disposed on a lateral surface of the stack. The passivation layer is made from a passivation material that has a crack resistance that is lower than a bond strength of the passivation material.