To add to Wayne's input, make sure you call out the right OSP depending on the board technology...not all OSP's are the same. Steve Sent from my BlackBerry 10 smartphone. Original Message From: Wayne Thayer Sent: Friday, August 15, 2014 11:28 AM To: [log in to unmask] Reply To: TechNet E-Mail Forum Subject: Re: [TN] surface finish for "bare" copper 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? -- This email and any attachments are only for use by the intended recipient(s) and may contain legally privileged, confidential, proprietary or otherwise private information. Any unauthorized use, reproduction, dissemination, distribution or other disclosure of the contents of this e-mail or its attachments is strictly prohibited. If you have received this email in error, please notify the sender immediately and delete the original. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________