Having silk screen ink on the surface mount pads is ok if you don't intend on having solder joints on those pads! The silk screen ink will interfere the formation of the solder joint and give you questionable solder joint reproducibility. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: FAB: Silk-screen ink on surface mount pads Author: [log in to unmask] at ccmgw1 Date: 5/28/96 8:01 AM Recently I have seen PC boards with silk screen ink on surface mount pads. Is any of this allowed? Looking at the PC board IPC standards, I don't see this subject addressed. May I have some guidance? Lou Hart 412-858-6117