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Reply To: | TechNet Mail Forum. |
Date: | Thu, 21 Aug 1997 10:05:58 -0400 |
Content-Type: | text/plain |
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Hi Marti,
From the information you give, which is not adequate, it seems that you did
not have wetting to the pads. Are those pads originally tin/lead plated or
HASLed or what. If the original solder coating has wetted, it can not all
come off--at least the intermetallic compounds should remain on the pads. If
you have wetting problems, wideing of the pads does not provide a solution.
But do really understand what is going on, more information is needed.
Werner Engelmaier
Engelmaier Associates, Inc.
Electronic Packaging, Interconnection and Reliability Consulting
23 Gunther Street
Mendham, NJ 07945 USA
Phone & Fax: 973-543-2747
E-mail: [log in to unmask]
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