Dielectric ceramics
US5246898A · kind A · utility
9Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Nov 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
High-frequency dielectric ceramics which contains the oxide of a complex perovskite structure as the main component, have a mean crystal gain size of sintered ceramic controlled to within the range of 5 .mu.m to 20 .mu.m and a porosity not exceeding 7% and provides high unloaded Q without requiring long-hour sintering or heat treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.