Dielectric ceramic composition
US6740613B2 · kind B2 · utility
3Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/09701
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A dielectric ceramic composition of high dielectric constant and low dielectric loss, which can be co-fired with Ag electrodes, is provided for use in various parts of electric and electronic appliances. The composition is represented by the following chemical formula:a wt. % {xZrO2−yZnO−wNb2O5−zTiO2}+cwt. % glass fritwherein, 5.0 mol %≦x≦45.0 mol %; 1.5 mol %≦y≦19.0 mol %; 1.5 mol %≦w≦19.0 mol %; 40.0 mol %≦z≦59.0 mol % with the proviso that x+y+w+z=100, 75.0≦a≦97.0, and 3.0≦c≦25.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.