Laser welding multiple refractive coated transparent substrates
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United States of America Patent
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Aug 6, 2024
Grant Date -
Jul 1, 2021
app pub date -
May 21, 2019
filing date -
May 22, 2018
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Abstract
Disclosed herein are methods of bonding a multi-layer film to a substrate and resulting structures thereof. A method of laser bonding a multi-layer film to a substrate can include forming a film over a first surface of a first substrate that is transmissive to light at a first wavelength. The film may include a reflective layer that is reflective to light at the first wavelength and a refractive layer that is refractive to light at the first wavelength. The method may include irradiating a region of the film using laser radiation passing through the first substrate. A wavelength profile of the laser radiation can have a peak at about the first wavelength. The first wavelength can be between about 300 nm and about 5000 nm.
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