agree
On Apr 19, 2018, at 10:11 AM, Wayne Showers wrote:
> The real problem is that this PCB has no etchback, positive or
> negative (PCBs are defective). As far as resin recession, yes the
> processing probably caused the separation, but once again, the PCB
> has no etchback.
>
> I would send that cross-section image to the PCB supplier and asked
> them if this is typical. I suspect that they will realize it is a
> trap and either offer a crazy answer or admit that their is no
> etchback and offer to re-run/replace the PCBs.