What is a printed circuit board（ PCB:Printed Circuit Board）？

Printed circuit board（ PCB:Printed Circuit Board is the foundation of almost any electronic product, which appears in almost every kind of electronic equipment. Generally speaking, if there are electronic components in a certain equipment, they are also installed on PCB of different sizes.

In addition to fixing various components, the main function of PCB is to provide the connection circuit between various components. With the increasing complexity of electronic equipment, more and more components are needed, and the circuit and components on PCB are more and more intensive.

The circuit board itself is made of insulating and inflexible materials. The small circuit material that can be seen on the surface is copper foil. Before being processed, the copper foil is covered on the whole circuit board. During the manufacturing process, part of the copper foil is etched away, and the remaining part becomes a network of tiny lines. ——Because this processing and production process, mostly through printing to form the outline for etching, so I got the name of printed circuit board. China. ——These circuits are called conductor patterns, or wiring, and are used to provide circuit connections for components on a PCB.