Single-sided PCB board: The solder joints are concentrated on a person aspect, and components are generally inserted on the other aspect. Some products nonetheless have SMD components about the copper-clad side. Double-sided board: Each side may be structure, and the two might have plug-in components or SMD components. One-sided boards https://16-layer3-levelhdipcb73715.izrablog.com/31779209/examine-this-report-on-8-layer-first-order-pcb