Patent · US Expired

Capacitor dielectric with internal barrier layers and a method for its production

US4149173A · kind A · utility

11Cited by

1References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Helmut Schmelz · Prien am Chiemsee, DE
Werner Schwaen · Munich, DE

Key dates

Filing date	Dec 7, 1977
Grant date	Apr 10, 1979
Priority date	—
Expiry date	Dec 7, 1997

Classification

Technology area (CPC H)Electricity
CPC primaryH01B3/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A capacitor dielectric is disclosed with inner blocking layers in which two crystalline main phases are present in about equal portions in order to achieve an improvement in the loss factor of the insulation resistance, the voltage dependency of the dielectric constants and of the insulation resistance, and to achieve tighter manufacturing tolerances.

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