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Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Tin Plating Storage


CL

#32195

Tin Plating Storage | 21 January, 2005

Good Morning Everyone,

Does anybody have any information regarding the recommended storage environment for PCB's with tin plating? Any help would be greatly appreciated.

Thanks In Advance

Chris

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Dasalintercept

#32208

Tin Plating Storage | 21 January, 2005

I don't know what's recommended but I do know that bagging with Intercept eliminates all oxidation in tin parts and platings and the need for dry packaging to boot. Email me if you'd like more information. dasalintercept@hotmail.com

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#32211

Tin Plating Storage | 22 January, 2005

First, your supplier is probably the best source of storage recommendations.

Second, storage under proper conditions (20�30�C, < 50% RH) should yield 12 months shelf life for immersion tin. Immersion tin boards should remain in sealed packages to: * Eliminate effects of humidity on tin copper intermetallic. * Reduce requirements for board baking, because excessive bake times and temperatures could degrade the tin finish.

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Plasma Prior to Conformal Coating

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