Hi Ingemar! If you are after your time then so are a whole bunch of the rest of us! Yes, problems with solderability and reliability of having a gold finish over a copper and/or copper alloy base metal without a barrier to prevent diffusion issues is still a problem reported within the electronics industry from time to time. Sometimes it appears we have to "re-learn" certain lessons. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: Koax plating Author: [log in to unmask] at ccmgw1 Date: 6/12/97 8:22 AM Question: We have bought subminiature coax connectors for SMT. They have 2um Gold over Brass (body) without Nickel barrier. I don't like the risk of Zn-leakage. Am I too oldfashioned? People put Tin directly on Kovar terminals etc. As I cannot handle roller blades, and has spent many years in a Quality Lab, I may be after my time....../Ingemar /EMW *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************