Blind And Buried vias pcb

6 layers HDI blind and buried board FR4 TG 170 impedance control board of custom HDI board prototype

Layer6MaterialFR4 TG170
Thickness0.060″Min.line width and space5/5mil
Min.Hole size8milSurface FinishENIG
Copper Thickness:1 ozImpedance controlYes
Via filledFill copper

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