OSP

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Mark Larson
Sent: Friday, August 15, 2014 1:12 PM
To: [log in to unmask]
Subject: [TN] surface finish for "bare" copper

Hi,

I've got a board that needs bare copper, many years ago I had this as well and 
seem to recall that they can put on some kind of finish in the process that 
does not leave it bare, but does protect it in the processing of the board, 
and consequently does offer some protection to the end user. Anybody know what 
that is or how I call it out?