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June 2001

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Subject:
From:
Werner Engelmaier <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 21 Jun 2001 09:34:50 EDT
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Hi Lou,
Part of the reason components should not sit on the PCB surface has to do
with solder joint reliability. A space simply does not allow the component
body to affect the solder joints--as soon as you leave spacers in place, you
negate this purpose.

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 904-437-8747, Fax: 904-437-8737
E-mail: [log in to unmask], Website: www.engelmaier.com

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