... As a result of the market demand for HDI PCB manufacturing, XCEPCBhas served clients from many industries, including ... respectively. Our manufacturing facilities have the following HDI PCB manufacturing capabilities:Buried, Blind and Micro ViasNCVFCopper FillSequential ... buried via,thick gold,aluminum PCBSurface finishHASL,Lead free HASL,Immersion Gold, Immersion Tin, Immersion Silver,OSP ,ENIG ...