Barbara, Suggest you look at some of the sessions for SMTA International Conference. From what I read there will be quite a lot of discussion on and around this subject. Lokat their site www.smta.org Regards Edward Hale >Who knows what the Standards are for artwork for Solder Paste. Should >gerbers match pad size, be over, be under. >Could not find info in the IPC Specs I have. > >Barbara Burcham