PCB is the abbreviation for printed circuit board in English. Printed circuits are commonly referred to as conductive patterns made of printed circuits, printed components, or a combination of the two, based on predetermined designs on insulating materials. The conductive pattern that provides electrical connections between components on an insulating substrate is called a printed circuit. In this way, printed circuits or finished boards of printed circuits are called printed circuit boards, also known as printed boards or printed circuit boards. On the most basic PCB, the parts are concentrated on one side and the wires are concentrated on the other side. Because wires only appear on one side, we call this type of PCB a single sided PCB. Because single sided PCBs have many strict limitations in circuit design, as they only have one side, the wiring cannot intersect and must be routed independently.