It will be very difficult to resolve variations in surface roughness of most
metal plating using an optical microscope of any kind. You could try a SEM
(scanning electron microscope), you'd be able to qualitatively 'measure'
surface roughness with the higher magnification or resolution you can
achieve with an SEM. Alternatively the most suitable instrument for your
purposes would appear to be a Talysurf (http://www.taylor-hobson.com)
profilometer, or similar, which will give a measurable micro profile or
surface roughness measurement.


Andrew Hoggan
BBA Associates Ltd
www.bba-associates.com

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Gilbert Min
Sent: Saturday, July 07, 2001 02:35
To: [log in to unmask]
Subject: [TN] Micro Scope of Final Visual Inspection in order to detect
gold/Cu surface roughness


Hello All.
I would like to know is it can be detect Au surface roughness?
What is the magnification of microscope?
And how is illuminated at the substrates?
Please give me a instruction or advice.
Thanks



Best regards
SIMMTECH.CO.,Ltd.
Quality & Reliability Assurance Team / Gilbert Min.

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