Eric, Before I can reply to your question, I need to ask a few things: 1) Are you using solder mask over top of your vias? 2) If not, what size are the pad & hole of your vias? 3) Are you differentiating between pads & vias on the same net to pads & vias on different nets? Figure 3-24 in the IPC-SM-782 SMD and Land Pattern Standard (pages 26-29) may give some of the answers you need. Gary Shoemaker *************************************************************************** * The mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text.* *************************************************************************** * If you are having a problem with the DesignerCouncil, please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************