标签: BGA布线

BGA布线的基础知识……

Standard=.010”(250μm)Hole-to-CopperImaging-Front-to-Back=+/-.002”(50μm)Lamination-layer-to-layerregistration=+/-.004”(100μm)Drill-Drilltolerance=+/-.003”(75μm)TotalTolerance=.009”(225μm)Advanced=.008”(200μm)Hole-to-CopperImaging-Front-to-Back=+/-.002”(50μm)Lamination-layer-to-layerregistration=+/-.003”(75μm)Drill-Drilltolerance=+/-.002”(50μm)TotalTolerance=.007”(175μm)