Copied Printed Circuit Board On line testing design

After careful consideration and prediction, the Copied Printed Circuit Board On line testing design can be carried out at the initial stage of PCB reverse engineering and realized in the later stage of the production process.

The type of via fan-out is determined according to the circuit board wiring path and circuit online testing. Power and ground will also affect the wiring and fan-out design.

In order to reduce the inductive reactance generated by the connection line of the filter capacitor, the vias should be as close as possible to the pins of the surface mount device.

Manual wire routing for PCB reverse engineering can be used if necessary. This may affect the originally planned wiring path, and may even cause you to re- Consider which via to use, so the relationship between via and pin inductance must be considered and the priority of via specifications must be set.