Are there any significant differences/concerns in fabrication, assembly, or long term reliability when comparing CEM-3 to FR-4 for double sided PTH boards? Is it compatible with carbon direct metallization? In what product applications is CEM-3 typically used for double sided PTH boards? From what I've been able to gather, it is used quite a bit in Asia but not in North America. Why (availability, end product application/reliability reqiuirements, no significant cost advantage...)? Regards, Pat Bailey Zytec Corporation *************************************************************************** * TechNet 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 IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************