... acrylicMinimum trace width: 0.10mmMinimum space width: 0.10mmMinimum hole size: 0.20mmMaterials and thickness: 1/2, 1, ... between pad to pad 3mil6Minimum hole diameter0.10 mm7Min bonding pad diameter10mil8Max proportion of drilling hole and board thickness1:12. ... of silk-screenWhite,Yellow,Black16Date file formatGERBER FILE and DRILLING FILE, PROTEL SERIES, PADS2000 SERIES, Powerpcb SERIES, ...