Can anyone direct me to a technical reference detailing the work done to show that exposed copper on component lead ends do not pose a solderability problem? I've searched the Technet Archives but only found vague references to a Battelle paper with no further details. Thanks in advance for any responses. Rob Schetty LeaRonal Inc Freeport NY USA ################################################################ 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 technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################