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ted_yosem
Ted Mooney, P.E. RET
- Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry


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Surface smoothness measurement



 

We use gold plated (hard gold)contacts for electrical testing of memory chips, etc. We need to have a relatively smooth finish on the gold < 63 micro inches. Does any one have a fairly decent method of measuring the finish of the gold short of spending thousands of $$ on a light refraction unit or an expensive surface tester. These contacts measure 1mm x .5mm x .004"-.010" thick.

Thanks to anyone who may be able to help.

Wayne E. Olson
- Minneapolis, Minnesota




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