12-Layer Edge-Plated Multilayer PCB

A 12-layer high-multilayer PCB with edge plating, on Shengyi S1000-2M FR-4 at 2mm nominal thickness (+0.1/-0.25mm tolerance). Edge plating wraps the board edges in a continuous metal film, normally gold over electroless nickel, which forms a continuous shield around the perimeter, suppresses edge radiation and lowers EMI on high-speed and RF nets. The plated edge also strengthens the board mechanically and seals the cut line against moisture ingress. Twelve functional layers split power, ground and signal cleanly, supporting controlled impedance on critical lines and high pin-count component layouts. Used in telecom RF and 5G modules, industrial control boards, measurement instruments and automotive electronics where edge-leakage signal loss or EMI compliance drives the design.