PCB (Printed Circuit Board) is a vital component of electronic devices. It plays the role of connecting and supporting electronic devices and is widely used in various electronic devices and systems.
The structure of PCB usually includes substrate, wires, pads and component mounting holes. The substrate is the foundation of PCB, which must have good mechanical support and excellent electrical performance. The wire is the medium for connecting electronic components, usually made of copper foil, which is made into complex conductive routes through printing, etching and other process steps. The pad is used for welding components, usually round or square, and the connection is achieved by welding with the pins of the components. The component mounting holes are used to install various electronic components.
