Item Specification Numbr of Layer 1-38Layers Material FR-4,FR2.Taconic,Rogers, CEM-1 CEM-3,ceramic , crockery Metal-backed Laminate Remarks High Tg CCL Is Availabe(Tg>=170oC) Finish Board Thickness 0.2mm-6.00 mm(8mil-126mil) Minimun Core Thickness 0.075mm(3mil) Copper Thickness 1/2 oz min;12 oz max Min.Trace Width & Line Spacing 0.075mm/0.1mm(3mil/4mil) Min.Hole Diameter for CNC Driling 0.1mm(4mil) Min.Hole Diameter for punching 0.9mm(35mil) Biggest panel size 610mm*508mm Hole Positon +/-0.075mm(3mil) CNC Driling Conductor Width(W) +/-0.05mm(2mil)or +/-20% of original artwork Hole Diameter(H) PTH L:+/-0.075mm(3mil) Non-PTH L:+/-0.05mm(2mil) Outline Tolerance +/-0.125mm(5mil) CNC Routing +/-0.15mm(6mil) by Punching Warp & Twist 0.70% Insulation Resistance 10Kohm-20Mohm Conductivity <50ohm Test Voltage 10-300V Panel Size 110×100mm(min) 660×600mm(max) Layer-layer misregistration 4 layers:0.15mm(6mil)max 6 layers:0.25mm(10mil)max Min.spacing between hole edge to circuity pqttern of an inner layer 0.25mm(10mil) Min.spacing between board oulineto circuitry pattern of an inner layer 0.25mm(10mil) Board thickness tolerance 4 layers:+/-0.13mm(5mil) 6 layers:+/-0.15mm(6mil)