Glass sealing with transparent materials having transient absorption properties
US9666763B2 · kind B2 · utility
6Cited by
36References
27Claims
0Family size
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/8426
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Transparent glass-to-glass hermetic seals are formed by providing a low melting temperature sealing glass along a sealing interface between two glass substrates and irradiating the interface with laser radiation. Absorption by the sealing glass and induced transient absorption by the glass substrates along the sealing interface causes localized heating and melting of both the sealing glass layer and the substrate materials, which results in the formation of a glass-to-glass weld. Due to the transient absorption by the substrate material, the sealed region is transparent upon cooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.