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Tony,

I know someone who regularly works with permanganate and polyclad. Ted Myers at JMSPI. Hope this helps.

Joe Aronson
Process Eng
JMSPI

>>> Tony Charais <[log in to unmask]> 07/21/99 08:09AM >>>
We are seeing an occasional problem with our current permanganate process. We have a DOE running but we are having problems developing topography in the hole on a given product. This is a high aspect ratio multilayer board. We are confident that the problem isn't related to fluid transfer in the hole. This product is based on a PolyClad core. Has anyone else had problems with PolyClad material? We are wondering if it could be something to do with their resin. Any support from the technet would be appreciated.

Tony Charais
Manufacturing Engineer
[log in to unmask]

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