Good Morning Techies,

        We have a customer with a question: Is there a standard that addresses
copper inclusions under the solder mask?  It appears the PCB's were not
cleaned very well before they were masked.  There are little bits/threads
of copper under the mask, but they are not vioilating any clearance
requirements.  I don't remember ever seeing anything that specifically
addresses this.  They are not necessarily calling it a defect, but are
wondering if there is something that addresses this.

        Thanks for your time,

        Connie M. Korth
        Reptron Mfg. Services, Hibbing

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