... PCB Boards FabricationQuick detail: Layer: 8 Special: vias filled with resin Half hole Material: Rogers 4003C 0.762MM ... . Other Technology: Gold finger, peelable mask, Non-across blind/buried vias, characteristic impedance control, Rigid-flex board etc. Reliability Test ... % Flammability: 94V-0 High Density PCB, Impedance control PCB, Buried & Blind Via, Gold Finger PCB, Gold Plating PCB,Immersion ...