Inge,
Has it been confirmed that the solder spheres are Pb90/Sn10? Or what are
they? 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Joe Fjelstad
Sent: Tuesday, September 12, 2006 1:26 PM
To: [log in to unmask]
Subject: Re: [TN] PbCO3

Thanks Inge.

(You are working late. A by product of the Nordic affinity for strong
coffee perhaps ;-) ?

"Curious and curiouser", indeed. Was this a one lot of product effect
or is it repeating?

If has been limited to one lot, has an attempt been made to recreate the
effect in some sort of designed experiment?

Obviously based on the scale, the length of these whiskers are not going
to be a threat equal to the threat of tin whiskers which can be more
than two orders of magnitude greater in length.

Nothing like a good process problem to keep the process engineers mental
gears engaged.

Best regards,
Joe



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