Clearance is the difference in widths of the copper pad and the mask opening. I.e. it's twice the clearance gap.
Mask is an absolute width, not related to the copper size. The CAPC*, RESC*, and INDC* footprints are the ones you should be using for "standard" 0805 etc footprints; those are based on (IDC? JEDEC?) published standards for such things. RESC2012N is the default 0805 for resistors; it's different than CAPC2012N for capacitors, etc, and slightly different than the "0805" footprint. Most fabs want a 3 mil (75um) gap between copper and soldermask. For a 900um copper, that means a 1050um minimum mask. _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
