... pcb PRODUCTION CAPABILITYLayers: 1-20 layersMaterial: FR-4, Aluminium Base, Rogers, Taconic, TeflonFinish Board Thickness: 0.2mm-3.2mm (8mil-126mil)External Copper Thickness ... Immersion Tin;Electronic Gold (Plate Gold), OSP, Gold Finger;Lead free HASL+ Gold finger, ... Gold+ OSP. ItemSpecificationsNumber of Layer1-12LayersMaterialFR-4, AL PCB, CEM-1, Taconic, RogersFinish Board Thickness0.2mm-3.2mm(8mil ...