>I think, the blue section ist the protective-coating >(german: L=F6tstop-Lack) on top of the copper, Solder Mask >the yellow section is the same. It is where the pad extends under the solder mask to allow for mask tolerances ? The cross hatch area may also be a no-go area to allow for tweezer handling of the component. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist