Multilayer electrical component having a passivation layer

US6930438B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Dieter Cramer · Graz, AT
• Carsten Schuh · Baldham, DE

Key dates

• Filing date: Apr 18, 2002
• Grant date: Aug 16, 2005
• Expiry date: Apr 18, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/872

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.