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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