Scott, You might try the Copper Connection. They offer a variety of classes on SMT design, Analog and RF circuits, and PCB layout amoung others. They can be reached at 408-970-9838, or fax 408-970-9184. I'm sure they will be able to answer all you questions. Don ################################################################ 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 ################################################################