In multi-layer PCBs, inner layers provide critical functions outside of signal routing. Power planes and ground planes are dedicated layers that deliver very low-impedance power distribution and return paths, respectively. These planes offer many advantages: Additional flexibility and dependability: Double-sided PCB will come with equally the top layer and base https://zanderkrvxy.fare-blog.com/31362976/facts-about-four-layer-tin-spraying-module-power-pcb-revealed