Laser welding transparent glass sheets using low melting glass or thin absorbing films
US9515286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Oct 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.