Hi, I have a question on Gold surfaces. It seems that one of my assemblies has a weird film or contaminates on the pads. The board is double sided, we ran one side and then it sat (shortages) for a week. It almost looks like copper! We did check incoming boards before placing parts and it seems they have the same problem but not as bad. I guess after wash this problem got worse. Has anyone had this problem before and if so, what was the cause? Thanks in advance Angie ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################