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US 4,733,039 AGranted
Method of laser soldering
AssigneeGeneral Electric Company
InventorsGeorge L. Schnable, Peter J. Zanzucchi
Life of this patent
Estimating the term…
Abstract
An additive that absorbs light at a given wavelength is added to a solder flux composition for use in laser soldering wherein the laser emits light of said given wavelength. The additive reduces the power required to melt the solder-flux combination and thereby improves soldering efficiency.
Claims10
In a method of soldering employing a flux composition and a Nd:YAG laser beam as the heat source, the improvement which comprises:
- adding an effective amount of a dye having the formula ##STR2## to said flux composition to increase the amount of light at the emission wavelength of said laser beam which is absorbed by said flux composition.
A flux composition for use with a Nd:YAG laser soldering system, comprising:
- a flux;
- and
- a dye having the formula ##STR3## in an effective amount to increase the amount of light at the emission wavelength of a Nd:YAG laser which is absorbed by said flux composition.
Dependencies are inferred from the claim text.