Hello Everyone, A question has been brought to me. What is the smallest soldermask relief to a surface mount pad being used in today's world. I'm being told that a 5 mil relief is a good safe number, however, with parts that are 10 mil pitch that a 3 mil or less should be used. What have some of you run into? Walter Bondarenko PCB Designer Andrew Corporation Amplifier Products Division - AYP 281 Industrial Road Glen Rock, PA 17327 (717) 505-0269 [log in to unmask]