Hi Technet,

I looked at an ENIG board today and noticed it had some gold-residues
in the nonplated holes.
I always thought that a non-plated hole should not have any plating at
all, but seeing this condition for the second time (the first time was
on a board from another manufacturer and another designer) I almost
begin to think this is a normal condition.
What do you think, is this normal, is it acceptable (I don't think so),
any idea what causes it ? For those who like to see a photograph of
this, see: http://www.smtinfo.net/forum/index.php?showtopic=40

Daan Terstegge
Thales Communications
Unclassified mail
Personal Website: http://www.smtinfo.net

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