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July 2007

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Subject:
From:
Lee parker <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Lee parker <[log in to unmask]>
Date:
Fri, 13 Jul 2007 11:22:23 -0400
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Dominic

Thick boards and ground planes are heat sinks. Have you checked the surface 
temperature of the board after preheat?

Best regards

Lee

J. Lee Parker, Ph.D.
JLP Consultants LLC
804 779 3389


----- Original Message ----- 
From: "Dominic Boudreau" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, July 13, 2007 10:59 AM
Subject: [TN] SN100C wetting problems


Dear all,



We are using the lead-free SN100C solder alloy for wave soldering. We
are experiencing wetting problems each time we have to solder a thick
board or a board with a large ground plane. I think that maybe we are
not using the right flux.



I would like to know which flux could give me good results with this
alloy? Also I would like to know if there are other manufacturers that
have same problems as ours.



Dominic




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