... 4mil Minimum Line Width/Spacing, BGA, 1.6mm Board Thickness and RoHS Mark1.UL,SGS,ROHS,IS09001,CE ... ,IPC multilayer pcb with BGA 1.Base Material:fr42.copper thickness:2oz3.board thickness:1 ... free Materials (RoHS Compliant) /CEM-3/CEM-1/AluminiumLayer No.1-30Board thickness0.015" (0.4mm)-0.125" ... Minimum Line Width/Spacing, BGA, 1.6mm Board Thickness and RoHS Mark