... Immersion Gold,Immersion Tin,Immersion Silver,OSP,etc.Board Thickness Tolerance±10%Copper Weight Tolerance± 0. ... 0.8milsBGA Repair and ReballPart Removal and ReplacementBare Board SizeSmallest:0.25*0.25 inchesLargest:20* ... SMT&Solder Assembly Line---- High density interconnected board placement technology capacity.Quote requirement for pcb&pcb ... H Bridge DC Stepper Motor Drive Controller Board Module