Richard,
Yes you can. An Isoscope can be used to measure soldermask on a dry surface.
The mask must be on a non-magnetic metal surface ( like copper). The
percision of the instrument is +/- 0.1 mil.
For additional info feel free to contact Dr.T.C.Lee of LeaRonal (516)868-8800
or at [log in to unmask]
George Milad
Tech Mrkt Mgr
LeaRonal Inc
(516)868-8800 Ext 269
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