> Is anyone aware of data or studies on whether or not, gold and OSP surface
> finishes are more susceptible to surface oils than HASL?   We wear cotton
> gloves at incoming inspection, and on several smt lines,  where we inspect
> and run non-HASL boards.  There is a concern about fingerprint oils
> degrading the finish on an OSP board, which may sit several weeks in
> storage, and the concern with the immersion gold boards is that the thin
> finish is porous, and skin oils might cause nickel oxidation.  Is anyone
> else doing this, or are we overly concerned about the vulnerability of
> these finishes to skin oils?
>
> Bruce Tostevin
> Benchmark Electronics
> Hudson, New Hampshire
>

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