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Date: | Fri, 1 Oct 2004 18:44:09 +0000 |
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Susan,
Wthout even seeing pictures it sounds to me like intermittent contact or perhaps some other equipment problem. Maybe even a malfunctioning power supply.
Regards.
Roger Mouton
-------------- Original message from Susan Mansilla : --------------
> Greetings everyone,
> I have two customers, both of whom use pulse plating to fabricate boards.
> One has a continuous copper deposit and the other has multiple bands or layers
> of plating - very visible after microetch.
>
> The plating deposit on the banded product has cracks after Thermal Stress.
>
> In my limited experience I have not seen pulse plating result in such
> definite bands.
>
> My question is - would bands be expected and "normal" in some pulse plating
> operations?
>
> Thanks for your help
>
> Susan Mansilla
> Robisan Lab
>
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