For the thermosoldering, the pads need to be coated with tin. In our case the coating must be as thin as possible. I was wondering if this step could be done by wave soldering. Does anybody know the average thickness of tin on the pads of a Ni/Au finishing board (without components) after wave soldering ? Thanks for helping, Walter. ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################