Hi Phil,

we are using NiAu-plated boards for > 10 years now and some of them have
been on stock > 6 month - but I never realised soldering problems.
But: no supplier will guarantee more than 6 month.

Just a question to Werner:
what's about soluting of Cu in Sn even at room temperature but regarding a
longer time ? May the storage time be limited due to that effect ? Compared
to SnPb you will not find an enrichment of Pb within the tin- /
solder-covering. But the imSn cover is much thinner than (normally) SnPb by
HASL.

Regards

Wolf-Dieter Schmidt
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THALES Defence Deutschland GmbH
Industrial Engineering
Land & Joint Systems
Ostendstrasse 3
D-75175 Pforzheim - Germany
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Phone: +49 7231 15 3386
Fax: +49 7231 15 3390
mailto: [log in to unmask]
http://www.thalesgroup.com

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