Single-sided PCB means that wiring is available only on one side of the insulating substrate. The side which contains the circuit pattern is called the solder side whereas the other side is called the component side.
These types of boards are mostly used in case of simple circuitry and where the manufacturing costs are to be kept at a minimum. Nevertheless, they represent a large volume of printed boards currently produced for professional and non-professional grades.
The single-sided boards are manufactured mostly by the print and etch method or by the diecut technique by using a die that carries an image of the wiring pattern; and the die is either photoengraved or machine-engraved.
Normally, components are used to jump over conductor tracks, but if this is not possible, jumper wires are used. The number of jumper wires on a board cannot be accepted beyond a small number because of economic reasons, resulting in the requirement for double-sided boards.