Immersion Tin?
Ag is known to be the anti-whisker additive for most chemistries.
Best regards,

Arnaud Grivon
PCB/PCBA Technology Expert
Thales Global Services - ESS (Engineering Shared Services)
18, avenue du Maréchal Juin
Bât. C - Bureau C2-135
92366 Meudon-la-Forêt Cedex
France
Tél : (+33) (0)1 70 28 23 88

Visit our website : http://www.thalesgroup.com 

[@@ THALES GROUP INTERNAL @@]


-----Message d'origine-----
De : TechNet [mailto:[log in to unmask]] De la part de Victor Hernandez
Envoyé : mercredi 20 novembre 2013 18:15
À : [log in to unmask]
Objet : [TN] Final Surface finish

Fellow TechNetters:

   Is there a final surface finish which has a high tin content along with some silver.   It is not the traditional ImAg.   The finish appears somewhat dull with good coverage on the edges of copper features.

Victor,


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