Regarding tented vias, my concerns are the same as Bob's. We see problems such as: 1) bare copper in the center of the hole where the solder mask does not reach 2) plugged on one end and not the other - makes a dandy cup to trap any liquid materials the board sees after solder mask application - Susan Mansilla Robisan Laboratory *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************