Copper Core PCB with 3 OZ copper thickness: Layers : Single Layer PCB Material: Copper core Board Thickness: 3.0mm Surface Finishing: OSP Finished Copper thickness: 3 OZ Solder mask: White Color Special Technology: Thermal Conductivtiy 3W/mk Copper thickness 3oz PCB board thickness 3.0mm Our Service: Quickturn around PCB prototype manufacturing PCB fabricate and PCB assembly service Stencil service Minimum Circuit Trace Width/Space: 2.7/2.7mil The Minimum Via Size : 0.15mm The Minimum legend Height/Width: 0.5mm/0.12mm Surface Finishing: HASL-LF, ENIG,ENEPIG,OSP,Gold Finger,Hard Gold Plating,Immersion Silver,Immersion Tin Special Technology: Blind&buried via, Via In Pad,Backdrill,Small BGA Pad,Impedance control,Heavy Copper,Copper Filled Vias,Countersink hole,Depth Milling Material Type: FR4,Metal Core,Halogen Free FR4,Rogers,PTFE,Arlon,Nelco,Polyimide Final Board Thickness: 0.4mm ~ 6.0mm Final Copper Thickness: HOZ 1OZ 2OZ 3OZ 4OZ 6OZ 10OZ FR4 Substrate Thickness: 0.1mm 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm 0.8mm 1.0mm 1.2mm 1.5mm 2.0mm 2.36mm Shaping: CNC Routing,Punching,V-CUT, Depth milling, Castellation Special Hole: Blind&buried hole,Depth milling,T-slot,Countersink hole Quick-turn Lead Time: 1 Day for 2 Layer PCB, 2 Days for 4 Layer PCB, 3 Days for 6 Layer PCB