Solitary-sided PCB board: The solder joints are concentrated on just one side, and components are often inserted on one other aspect. Some products still have SMD components to the copper-clad side. Double-sided board: Each side may be structure, and the two might have plug-in components or SMD components. Power and https://double-sided-immersion-go94725.vidublog.com/30623241/four-layer-inner-and-outer-layers-2oz-copper-thick-pcb-circuit-board-things-to-know-before-you-buy