Ron,
We've tried it both ways. The problem we got into with square pads
was that it was more suseptable to solder slivers between pads, but
we were going across a wave. We have never experienced this
problem with circular pads.
Larry Campbell
BFGoodrich, Avionics Systems
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*******************************************************
>>> Ron Hollandsworth <[log in to unmask]> 08/05/97 11:27am >>>
Hello TechNetters:
I have a question concerning pad design. Connector pad
design/shape
for through hole connectors. The connector is a 50 mil pitch
connector. Question: "Is there an advantage to round vs square
pad
design if the connector is going to be wave soldered?" This is a High
Rel Class 3 product (Military).
What experience can you all share on this question. We will be
soldering without the aid of a hot air knife. We have a Dover Soltec
Delta Wave solder machine and are using Kester 973 VOC free
Water
Based No-clean flux being sprayed onto the board with convection
preheating.
You can reply over TechNet or direct.
Ron Hollandsworth
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