EDGE PLATED PRINTED CIRCUIT BOARD

摘要

An edge plated printed circuit board (PCB) 405 improves radiated emission performance by enhancing ground shielding on the PCB and improving the physical and electrical connection between the PCB and external EMI suppression components including an EMI chassis and gaskets. Inner ground layers 910, 925 within a multi-layer PCB are configured to physically extend to an edge 960 of the PCB, which is plated using copper electroplating, so that copper ground strips 980, 985 disposed at the top and bottom surfaces of the PCB and the inner ground layers are all electrically coupled to the plated edge 965. In some embodiments, the ground strips can be made thinner compared to conventional arrangements, or be eliminated altogether as a result of the direct connection between the edge plated PCB and external EMI shields.