The only other thing I can come up with??? If you still need to be using armor piercing rounds in an electronic assy, The only thing I could suggest is not part of the pcb fabrication process but in the assembly process. Solder onto the contact pad a much thicker square of a conductive metal chrome plated something, stainless, etc. Robert M. Wolfe ################################################################ DesignerCouncil 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 DesignerCouncil <your full name> To unsubscribe: SIGNOFF DesignerCouncil ################################################################ 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 ################################################################