... of FR-1 1L, FR-1, 1.5mm, 1OZ, Green solder mask, White silkscreen, Punching, OSP. E-test SERIALITEMTECHNICAL DATA1Layers1-16 Layers2Base-materalFR-2, CEM-1 ... , FR-4, Metal base, Rogers...3Board thickness8~126 mil (0.2~6.0mm)4Copper foil0 ... (0.05mm)15HASL(HAL)40u"~1000u"16OSP(Entek)2-5um17Gold fingerNi: 80~250u", Au: 1~5u"18Immersion gold(ENIG)Ni: 80~200u ...