A Single Sided PCB is the most basic type of printed circuit board. It consists of only one conductive copper layer above the substrate. The electrical components are soldered or mounted on to one side of the board and the entire etched circuit can be seen on the other side of the board.
Single sided circuit boards are relatively simple when it comes to their design meaning they require fewer resources and subsequently have a low density. This combination allows for highly cost-effective and affordable manufacturing, as due to their simplicity they can be produced at higher speeds in larger quantities with less potential problems to encounter.