double sided aluminum base pcb 2L, CCAF-01, 1.0mm, 70um, purple solder mask, ... DATA1Layers1-16 Layers2Base-materalFR-2, CEM-1, FR-4, Metal base, Rogers...3Board thickness8~126 mil (0.2~6.0mm)4Copper ... -5um17Gold fingerNi: 80~250u", Au: 1~5u"18Immersion gold(ENIG)Ni: 80~200u", Au: 1~8u"19Warp and twist≤0.75 ... .4N/mm26Thermal Shock3 x 10Sec@288ºC Double Sided Aluminum Base PCB