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July 2012

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Fri, 6 Jul 2012 07:48:39 -0500
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Victor Hernandez <[log in to unmask]>
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Who knows what evil lurks beneath the canopy of the jungle?   The shadow knows?

Victor

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Graham Naisbitt
Sent: Friday, July 06, 2012 7:23 AM
To: [log in to unmask]
Subject: Re: [TN] Copper Dendrites

Hi Neil

I stand by my earlier posting on this. Neither a solder resist nor a conformal coating will PREVENT dendrites, they might delay it for a while, but then what is lurking and festering underneath....just when you thought it was safe to go back in the water!?

Graham Naisbitt


On 5 Jul 2012, at 19:50, Neil Atkinson wrote:

> Thanks everyone for comments so far - haven't been on Technet for a while so it was good to get such good responses.
> 
> Really miss Werner for questions like this...
> 
> Actually we have never seen a failure for dendrites; however, we have a customer who has a past problem with another supplier due to dendrites on PCBs and as a result wants us to cover vias with solder resist or conformal coating.
> 
> Tha,
> 
> Neil
> 
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