Glass and glass substrate having high dielectric constant
US7396786B2 · kind B2 · utility
3Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Jan 22, 2003 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Feb 7, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass containing 5 to 25 mass % of P2O5, 0 to 15 mass % of B2O3, 0 to 5 mass % of SiO2+GeO2, 21 to 50 mass % of BaO+SrO, 0 to 3 mass % of Li2O+Na2O+K2O, and 35 to 65 mass % of Nb2O5, not substantially containing PbO, satisfying Nb2O5/(BaO+SrO)=0.85 to 2.20, having a dielectric constant of 15 or greater, a dielectric loss of 10.0×10−4 or less, and a resistivity of 1.0×1016 Ω·cm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.