... ENIG, Green Solder Mask, RoHS Compliance. Rogers PCB,2-Layer,ENIG,Green Solder Mask,RoHS Compliance.CertificatesULISO9001TS16949ISO14001 ... including warp & twist check) Dimensional Inspection (finished hole sizes, pcb profiles, etc) MicrosectionSolderability Test (245±5ºC; 3-5 ... 558.8x762mm)Min Board Thickness2 layers - 8mil (0.2mm)4 layers - 16mil (0.4mm)6 layers - 24mil (0.6mm)8 layers - 32mil (0.8mm ...