PCB type : HDI PCB 

PCB Layer：8 layer 

PCB material: HDI PCB 

PCB thickness: 1.6mm 

PCB copper thickness: 1OZ 

PCB via size: 0.1mm 

PCB track/gap: 4mil/4mil 

PCB outline:  Routing 

PCB solder mask : green 

PCB silkscreen: white 

PCB technology: HDI PCB laser drill L1-L2,L7-L8, buried via L2-L8

PCB surface: ENIG