PCB manufacturing 8 layers of soft and hard bonding board 8 layers of 1.6mm thick soft and hard combination, FR4 Sheng Yi TG170 plate + soft board PI ...
PCB manufacturing 12 layers of test boards 1.6 Thick, gold settling, impedance, Shengyi TG170, inner 6.5mil hole to line spacing, local 3mil wiring .....