What would you look for???
Vladimir
----- Original Message -----
From: TechNet <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Sent: Mon Jul 21 11:31:36 2008
Subject: Re: [TN] looking for ENiG photos
Routine yes, qualification of plating process, no. But there may be
other analysis methods that are better suited.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Igoshev, Vladimir
Sent: Monday, July 21, 2008 10:15 AM
To: [log in to unmask]
Subject: Re: [TN] looking for ENiG photos
Don't you think it would be kind of overkill to use Auger for routine
characterization of ENIG? :-)
Vladimir
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
Sent: Monday, July 21, 2008 10:48 AM
To: [log in to unmask]
Subject: Re: [TN] looking for ENiG photos
I am not sure that any conclusion can be derived from 800x magnification
of ENIG samples.
Some type of Auger analysis or other method should be used.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Pete Houwen
Sent: Monday, July 21, 2008 8:58 AM
To: [log in to unmask]
Subject: [TN] looking for ENiG photos
Our purchasing group is trying to qualify a new low cost PCB vendor, and
I have some reservations. I have been examining their sample boards,
and while one oif them shows a normal ENiG grain under 800x
magnification, the other is flat and dull. I believe it might be just
gold plating. It's hard to tell from the cross sectons they sent (those
display their own set of concerns). I'm trying to find some images to
compare these, but I'm having no luck. Does anyone know of a good site
where I might find some ENiG and Gold images?
Thanks,
Pete
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