Patent · US Expired

Electrical component with a negative temperature coefficient

US7135955B2 · kind B2 · utility

13Cited by

6References

20Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Thomas Feichtinger · Graz, AT
Christian Hesse · Attendorn, DE
Robert Krumphals · Wolfsberg, AT
Axel Pecina · St. Martin, AT
Volker Wischnat · Hall in Tirol, AT

Key dates

Filing date	Dec 2, 2002
Grant date	Nov 14, 2006
Priority date	—
Expiry date	Dec 19, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2237/704
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical component includes a base having at least a first ceramic section and a second ceramic section. The first ceramic section and the second ceramic section include different materials, which have resistances with negative temperature coefficients. The component also includes first and second contact layers on the base. The first and second ceramic sections are between the first and second contact layers. A plurality of stacks of electrically conductive electrode layers are arranged inside the base. Stacks of electrode layers are electrically connected to the first and second contact layers.

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