Hi Experts,

I am looking at the alternatives to Solder Mask for surface high-speed 
interconnects, as solder mask causes impedance discontinuity.  I would 
like to use OSP process instead of solder mask, but I have been told that 
OSP does not protect Copper in harsh environment.  I will appreciate if 
you can suggest some other alternatives.

Thanks.


Regards
Ravinder Ajmani
HGST, a Western Digital company
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5601 Great Oaks Pkwy. 
San Jose, CA 95119-1003
www.hgst.com


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