HDI PCB with BGA, Blind and Buried via, Made of FR4 Material 1. ... ,CE,IPC 2..High quality&competitive price HDI PCB with BGA, Blind and Buried via, Made of FR4 Material1.Base ... " (0.125mm) SMD Pitch (a)0.012" (0.3mm) BGA Pitch (b)0.027" (0.675mm)Regesiter torlerance0.05mmMin Solder ... SGS ULsample picture product authenticationcompany profile HDI PCB with BGA, Blind and Buried via, Made of FR4 Material