Patent · US Expired

Resistor composition for producing thick film resistors

US5264156A · kind A · utility

5Cited by

2References

21Claims

0Family size

Assignee

W. C. Heraeus GmbH · DE

Inventors

Frieder Gora · Aschaffenburg, DE
Karlheinz Guldner · Aschaffenburg, DE
Christina Modes · Frankfurt, DE

Key dates

Filing date	Aug 21, 1992
Grant date	Nov 23, 1993
Priority date	—
Expiry date	Aug 21, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/80
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A resistor composition comprising a pyrochlore-related oxide a glass frit and, anorthite as a finely-divided filler. The resistor composition exhibits high tolerance in respect to firing temperatures. Thick film resistors obtained therefrom by firing on, for example, aluminum oxide substrates, have relatively uniform resistance values, even with inconsistent firing conditions, and have high stability of resistance following laser trimming.

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