Ceramic composition and electronic part using the same
US5182695A · kind A · utility
10Cited by
5References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 22, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Aug 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/1254
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ceramic composition which forms, when sintered, a dielectric having a crystal structure represented by the general formula: EQU [Pb.sub.1-x A.sub.x ].sub.[A] (B.sub.1,B.sub.2).sub.[B] O.sub.3 where A is at least one element selected from the group consisting of Ca, Sr, Ba, Ag, La and Nd, B.sub.1 is at least one element selected from the group consisting of Mg, Zn, Ni, Co, Fe, Mn and In, B.sub.2 is at least one element selected from the group consisting of Nb, W, Ta and Sb, x is 0 to 0.5, and the molar ratio of [A]/[B] is 0.995 or more, but 0.99 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.