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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