Per David's info, IPC-RB-276 has no thickness for fused tin-lead or solder coating; however; the replacement documents, soon to be issued IPC-6012, has in Table 3-2 a requirement for unfused tin-lead at a minimum of 8 micron [0.0003 in] Phil Hiinton [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. * ***************************************************************************