Robert Welch wrote: > > Annie, > > Since you said oxidized, I'm afraid the condition you describr is due > to high lead content in the gold bath. Almost all automatic Ni/Au > machines drag in a small amount of lead into the gold bath, > regardless of how well everything is run. Because of this the > gold bath itself must eventually be either treated for lead or > replaced. I'm realy not sure if there is a functional impact. > Robert E. Welch If your problem really is lead contamination, do a lead treatment, then tin/lead strip your boards before gold plate, preferably after solder resist and then HASL. Roger Hammond ############################################################## 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. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################