Dielectric ceramic composition and ceramic capacitor
US10710934B2 · kind B2 · utility
2Cited by
2References
16Claims
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Key dates
| Filing date | Mar 20, 2019 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/0085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dielectric ceramic composition represented by a general formula {(Na1-v-w-xKvLiwM2x)(Nb1-y-zTayM4z)O3+αMnO+βLa2O3+γLi2O}, wherein 0≤v≤0.01, 0≤w≤0.01, 0.05≤x, z≤0.15, 0≤y≤0.1, 0.003≤α≤0.05, 0.001≤β≤0.05, and 0.005≤γ≤0.05. M2 is Ba, Ca, and/or Sr, and M4 is Zr, Hf, and/or Sn. A ceramic layer is formed of the dielectric ceramic composition, and an internal electrode is formed of a base metal material such as Ni.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.