Laser welding transparent glass sheets using low melting glass or thin absorbing films
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United States of America Patent
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May 7, 2019
Grant Date -
May 17, 2018
app pub date -
Sep 8, 2017
filing date -
May 10, 2013
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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.
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