I have seen a lot of talk on Technet recently regarding Cu Ni Sn board finishes. Is this the same thing as what I have heard called "Soldermask over Tin/Nickel" or "The Santa Clara Process"? If so, does anyone have a summary of the benefits/problems associated with this process? Thanks, ========================================================== Chris Stack ext. 231 [log in to unmask] CD Electronics, Inc. Printed Circuit Board Designer and Purchasing Agent ========================================================== To understand the things that are at our door is the best preparation for understanding those that lie beyond. -Hypatia ========================================================== ********** ORIGINAL MESSAGE FOLLOWS ********** >We appreciate your Feedback Mr. Anderson, one more question, what is >your surface prep (predip) prior to Tin plating. >Regards / Wolfgang. Wolfgang; >From Nickel we have dragout rinses followed by a spray rinse, then to a 10% sulfuric pre-dip before Tin plate. After copper plate we also have a light microetch before the Nickel to eliminate the possibility of peeling at the Cu/Ni interface. Regards George ---------------------------------------------------------------- Uvonics Co. Inc. [log in to unmask] ************************************************************************** * * TechNet mail list is provided as a service by IPC using SmartList v3.05 * ************************************************************************** * * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ************************************************************************** * *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************