I currently have a customer with an application requiring a 6 layer PCB
that must exist in a 120 degrees C environment. They are currently using
silver solder to attach wires to the PCB, and the holes are failing. Did I
mention there is also a lot of vibration? 

Does anyone know of a successful fab stategy, i.e. PCB laminate, plating
and soldercoat combination that can successfully survive these conditions? 

We have been considering using rivets in the holes as a parallel solution.

All comments are welcome.

djr