In a message dated 4/6/99 6:31:51 AM Pacific Daylight Time,
[log in to unmask] writes:
<< Hi,
Are the pins that aren't soldering connected to ground or power
planes?
Did you use thermal vias for these pins?
My guess is the planes in your PCB (PWB) haven't got up to temperature
and are pulling down the pins connected to them.
What is your pre-heat temperature?
Regards
Edward Brunker
PSION Computers >>
I'd ask the same question about pre-heat as well. Also, a comment on your pot
temperature...240 C. seems a little on the low side. I normally run 250-260
C....
-Steve Gregory-
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