On 23 Feb 96, [log in to unmask] wrote:
>      As mentioned in several other messages, we have found no reliability 
>      problems associated with exposed copper on OCC assemblies. 

This is also true for most of the products that we do in our company.
However, for some specific applications (e.g.: flex circuits that get
enclosed inside a HDD), exposed copper can pose serious reliability
issues. Powders of copper oxide, or any foreign material for that
matter, can fall into the magnetic media and damage it forever.

-Luke-
--
Luke B. Mendoza - http://www.iphil.net/user/lmendoza/
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