Dielectric ceramic composition and multilayer ceramic capacitor
US10804033B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/248
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The object of the present invention is to provide a dielectric ceramic composition having good properties, particularly good IR property and high temperature accelerated lifetime.The dielectric ceramic composition of the present invention has a main component made of a perovskite type compound expressed by a compositional formula of (Ba1-x-ySrxCay)m(Ti1-zZrz)O3 (note that, m, x, y, and z of the above compositional formula all represent molar ratios, and each satisfies 0.9≤m≤1.1, 0≤x≤0.5, 0≤y≤0.3, 0≤(x+y)≤0.6, and 0.03≤z≤0.3), and
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.