Patent · US Expired

Piezoceramic device

US7855488B2 · kind B2 · utility

7Cited by

28References

25Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Adalbert Feltz · Jena, DE
Sigrid Gansberger · Graz, AT
Heinz Florian · Bad Gams, AT
Harald Kastl · Wolfsberg, AT

Key dates

Filing date	Apr 19, 2006
Grant date	Dec 21, 2010
Priority date	—
Expiry date	Apr 19, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31678
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a piezoelectrical device whose electrode layers contain copper. The usage of copper in electrode layers is enabled by a debindering process, which is carried out by steam.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.