Hello all,

We are assembling some PCBs to a Customer Drawing.  The
Drawing requires us to cut a notch at the edge of the PCB.  Of
course this operation exposes the fibers, but on a few of the PCBs
we have also removed an area of resin (approx. 1.5 mm square)
from the top surface.  The exposed area is well away from any
conductor and the PCB will be conformally coated after assembly.
I can't find anything in IPC-A-610 which applies to this situation.
We are building to Class 3 requirements.  Is there any cause for
concern?  Thanks in advance.

Best regards,

Paul Baine
Q.A. Manager
C-Tech Ltd.

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