Dennis The statement about "Hole wall dielectric/plated hole separation" is a direct carry over from IPC-RB-276 Table 10 which as been in existence since 1992. It is the intent to allow hole-hole-wall-pullaway to any extent as long as the hole is not collapsed and the function is not degraded. This was a change from IPC-ML-950 which only allowed 40% hole-wall-pullaway. This is the first time any question has come up since RB-276 was issued and the suppliers and users seem satisfied. Phil Hinton [log in to unmask] *************************************************************************** * 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. * ***************************************************************************