Method for making a monolithic ceramic capacitor employing a non-reducing dielectric ceramic composition
US4115493A · kind A · utility
45Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1977 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Aug 19, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Non-reducing dielectric ceramic compositions comprise solid solutions which are represented by the compositional formula: EQU {(Ba.sub.1-x Ca.sub.x)O}.sub.m .multidot.(Ti.sub.1-y Zr.sub.y)O.sub.2 wherein m, x and y have the following values: PA1 1.005 .ltoreq. m .ltoreq. 1.03 PA1 0.02 .ltoreq. x .ltoreq. 0.22 PA1 O < y .ltoreq. 0.20 The compositions possess high permittivity and small dielectric loss and maintain high insulation resistance even if fired in reducing atmospheres, thus making it possible to manufacture inexpensive but high reliable monolithic or multi-layer ceramic capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.