... )/CEM-3/CEM-1/AluminiumLayersingle layer,double layer,multi-layer(4-10)Board Thickness0.3mm-3.0mm,+/-0.1mm(tolerance)Copper Thickness1/2OZ-3OZ (35um ... 10 milBGA Pitch 20 milMin Pad Space 4mil(SMT)Plating Copper Thickness15um Hole Hole Size0.25mm--6.2mmHole Position Tolerance±0 ... Solder Mask Thickness0.7mil,raised H≤0.05Colour green,blue,red,yellow,black,white(LPI/MATT.,UL 94 V0 approved) Surface ...