You wrote: " Because of a vendor mis-hap we recieved pcbs with palladium and not tin plating. We use a 2% silver solder so it is a good match. We are concerned with any long term effects i.e. corrosion. Can some of you please respond with your experience with palladium and pcbs. Don Fumia " --------------------------------------------------------------------------- ------------------------------------------------------------------ Hi, We have made some preliminary trials with Palladium Process called " electroless palladium " by Atotech, with formic acid as the reducing agent. I suppose there is also a process called " immersion palladium ". Personally I think it gets too thin and it is preferrably used as a activator in Ni/Au- processes, for example. Well, in our case it worked fine, we are pleased with solderability. We have not made environmental tests & other tests so far, personally I think that corrosion is not a problem, because palladium is the most noble metal and hence it is almost impossible to get it corrode. The real problem of palladiumin our case is availibility/price fluctuation in Europe. Brs, Johannes ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################