HDI PCB with BGA, Blind and Buried via, Made of FR4 Material 1.UL,SGS,ROHS,IS09001 ... &competitive price HDI PCB with BGA, Blind and Buried via, Made of FR4 Material1.Base Material:fr42.copper thickness: ... .125" (3.2mm) Board Thickness Tolerance± 10%Cooper thickness1/2OZ-3OZImpedance Control± 10%Warpage0.075%-1.5%Peelable0.012" (0. ... profile HDI PCB with BGA, Blind and Buried via, Made of FR4 Material