[log in to unmask] (James Edwards) Wrote: | | Could someone tell me the advantages of using Gold/NI vs HASL | and | what are the common (if any) process problems I may encounter | when | screening/placing parts/soldering to these type boards using | 63/37 eutectic solder paste? Any wave solder issues? Thanks James, The August 1995 edition of Electronic Packaging & Production has a paper titled as "Alternatives to HASL: A Uer's Guide For Surface Finishes", which gives a pretty summary on alternative PCB surface technology, including Ni/Au. It also include a comparison chart for HASL, Ni/Au, OSP, Matte Tin in terms of fine pitch capability, electrical contact, cost and etc. Qun Xiao *************************************************************************** * 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. * *************************************************************************** * 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] * ***************************************************************************