Base material: FR4 TG170Layer count: two layer Board thickness: 1.00 mmCopper thickness: 35um Surface finish: immersion gold Solder mask color: blackDimensions: 87 x 66mm, 32/upSingle side board: $70/m², delivery 3 to 6 daysDouble-sided board: $85/m², delivery 5 to 7 daysFour layered PCB: $125/m², delivery 8 to 12 daysSix layered PCB: $185/m², delivery 10 to 15 daysSurface treatment: HASL (LF), immersion gold, flash gold, OSP, immersion tin, immersion silver, HASL and gold finger and selective nickel Laminates: CEM-3, PTFE, FR-4 (high-TG), metal base (aluminum, CU and more), rogers and moreMaximum layers: 16 Maximum board dimensions: 20 x 48 inches Board thickness: 0.4 to 5.5mmMaximum copper thickness: inner layer 4oz Maximum copper thickness: outer layer 5oz Minimum track width: 4 mils/0.1mm Minimum track space: 4 mils/0.1mm Minimum hole size: 8 mils/0.2mm Minimum laser hole size: 4 mils/0.1mm PTH wall thickness: 0.8 mils/20um PTH diameter tolerance: ± 3mils/± 76um NPTH diameter tolerance: ± 2mils/± 50um Aspect ratio: 10:1 Impedance control: ± 10%