... of FR-2 1L, FR-2, 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 ... (0.05mm)15HASL(HAL)40u"~1000u"16OSP(Entek)2-5um17Gold fingerNi: 80~250u", Au: 1~5u" ... Shock3 x 10Sec@288ºC SSB of FR-2