Multi Layers 1-2-4 PCB Material FR-4 Available Color Green, Red, Yellow, Blue, White, Black Silk Screen White, Black (For White Solder Mask only) Maximum Size 45cm X 120cm Minimum Qty 10pcs Board Thickness 0.6mm,0.8mm, 1.0mm, 1.2mm, 1.6mm Thickness Tolerance (t=1.0mm) ± 10% Thickness Tolerance (t8mil) Minimum Track/Vias Space 6mil (Recommend >8mil) Minimum pads Space 8mil Minimum silkscreen text size 32mil Out Layer Copper Thickness 1oz(35um) Inner Layer Copper Thickness 17um Drilling Hole (Mechanical) 0.3mm—6.35mm Finish Hole (Mechanical) 0.8mm—6.35mm Drill Diameter Tolerance (unplated) 0.05mm Drill Diameter Tolerance (plated) 0.1mm Outline Tolerance (Mechanical) ±0.20mm Aspect Ratio 8:1 Solder Mask Type Photosensitive ink SMT min Solder Mask Width 0.2mm Min Solder Mask Clearance 0.2mm Solder Mask Thickness 15um Surface Finish HASL, HASL (Lead Free) +$10, ENIG+$16.