Barry: We have tried both ways you have described. Some companies reflow their SMT components and still run across the wave solder machine to solder the PTH components. Many are trying intrusive soldering/Pin-in-hole and reflow both SMT and through hole. Covering the SMT with a fixture while soldering the through hole is called selective soldering. To successfully selective solder certain design guidelines must be followed. If you decide to try selective soldering I would recommend contacting Eric Miller at S.P. Precision International, Ltd., in Forest Grove, OR., 97116, Tel (800) 725-5388. They have assisted us in the past. They also manufacture selective soldering fixtures as well as other types. Hope this helps. Merry Christmas and Happy New Year!!!! *************************************************************************** * 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] * ***************************************************************************