Method of forming a colored membrane on soldered portion by empl

Details Method of forming a colored membrane on soldered portion by empl Method of forming a colored membrane on soldered portion by empl

1996-07-29

1998-02-03

Andrews, Melvyn

Metal treatment

Compositions

Fluxing

148 26, 2282481, B23K 100, B23K 35362

Patent

active

057140138

ABSTRACT:
The present invention relates to a method of infusing coloration in solder to facilitate inspection of soldered portions in the production of electronic machinery, equipment and apparatus, and further, a method of forming a colored membrane on the surface of the soldered portions by employing colored solder materials. Physically and chemically stable colored powders composed of rare earth compounds or metallic fluoride compounds, having properties of specific gravity lighter than that of solder and further being indecomposable even at a temperature higher than that of the melting points of solders, are mixed into flux. After soldering by employing solder cream containing the mixture, a colored membrane or layer may be formed on the surface of soldered portions by deposition of the colored powder compounds.

REFERENCES:
patent: 4670067 (1987-06-01), Suzuki
patent: 4901909 (1990-02-01), George
patent: 4911764 (1990-03-01), Farnsworth
patent: 5308407 (1994-05-01), Bishel

Affiliated with

Also associated with

Rating

Method of forming a colored membrane on soldered portion by empl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of forming a colored membrane on soldered portion by empl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming a colored membrane on soldered portion by empl will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-658958