... layer2MaterialFR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,Aluminum, Ceramic, Rogers,F4B,Teflon3Board thickness0.2mm-6.0mm4Max ... 3mil)7Min.line spaceing0.076mm(3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Immersion gold Inmersion Silver/Gold, ... of printed circuit board assemblyPCB or PCBA Prototype Production Lead Time Layers Sample First Order Repeat Order Single side3 ...