There was a company in Massachusetts years ago that could rework unassembled PC boards using a copper conductive ink process instead of discrete wires. This process was automated using a screening, baking and surface finish preparation process. Large quantities could be processed at fraction of the cost of adding wires. I think it was call "Wire Ink". Is anyone using a PCB rework process like this? Thanks in advance, Doug ################################################################ 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 ################################################################