Durable tungsten-doped tin-fluorophosphate glasses
US7615506B2 · kind B2 · utility
18Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jul 2, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C8/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Tungsten-doped tin-fluorophosphate glasses are described herein which exhibit excellent humidity resistance, thermal resistance, and have a low glass transition temperature which makes them suitable for low temperature sealing applications, such as for encapsulating electronic components. In one embodiment, these glasses comprise 55-75% Sn, 4-14% P, 6-24% O, 4-22% F, and 0.15-15% W on a weight percent elemental basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.