The meaning of each layer of PCB board
PCB boards are usually composed of multiple layers stacked together, with each layer performing a different function. The following are common PCB layers and their meanings: Signal layer: The signal layer is one of the most important layers on the PCB board. It contains the signal transmission path between electronic components and realizes signal transmission and communication through the connection between wires and electronic components. Generally, PCB boards will have multiple signal layers for wiring and connecting complex circuits. Stratum: The stratum is the layer designed to provide a good ground reference. It is mainly used to form a large-area ground plane to provide low noise, low impedance and electromagnetic […]