Materials | Line Width and Space | Drilling | Routing | Scoring | Edge Beveling | Quality | Multilayer Lamination | Soldermask | Legend | Hole Plugging and Cu Plating | Surface Finishes | Controlled Impedance | Electrical Test | UL Requirements | Heat Sink Bonding | Metal Carrier Finishes (Aliminum) | Metal Carrier Finishes (Copper)     Standard Special Drilling Min. drilled hole diameter 0.012" 0.008"   Max. drilled hole diameter .0250"     Max. apsect ratio 6:1 10:1   PTH diameter tolerance +/- 0.003" +/- 0.002"   NPTH diameter tolerance +/- 0.002" +/- 0.001"   Hole location tolerance +/- 0.003"