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8layerprintedcircuitTopsided
8layerprintedcircuitbottomsided

Material Vendor :FR4 /ROSH
Layer /pcb thickness : 8 Layer /2.0mm 
Copper thickness : 1oz copper 
Solder mask /silkscreen  ;green solder mask/ white silkscreen
Surface finished :immersion gold
Min width/space: 5.5 / 3.5 mil 
Min holes : 0.2mm
Technics Characteristic: High Aspect Ratio PCB 
Technical  Requirement: 1, R & D products ; 2,Shengyi High -tg  with thickness 2.0 mm ,3,High Aspect Ratio PCB,10:1 quality requirement with IPC class III standard

High Aspect Ratio PCB