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Date: | Mon, 25 Nov 96 17:45:08 EST |
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Hey TechNet friends I thank you very much for the great
comments and information on Eutectic and Plastic ranges for
the two solders. You all really helped make a point and I
appreciate it very much.
THE POINT
If SMD is going to use a paste with a plastic range they
need to inform the wave solder guys before they make the
change. Like my good TechNet friend Dave Hillman said, "a
robust wave solder process probably won't be affected . .
."and he is right, however, there are some
critical/tight/stubborn boards that might. That was my
case. We were reflowing a QFD on the top side where the 2%
Ag paste was being used.
A gentlemen ask why use the 2% silver in a TechNet message
yesterday (11/24/96). From what I have heard, and seen,
there used to be a problem with leaching before the great
Nickel barrier was constructed on components. It's not a
problem now since the leaching problem was solved.
Once again thanks.
Ron Hollandsworth
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