Surface Mount Technology (SMT) is also called surface mount or surface mounting technology. It is a circuit assembly technology that mounts pinless or short-lead surface mount components (SMC/SMD for short, sheet components in Chinese) on the surface of a printed circuit board (PCB) or other substrate, and assembles them by soldering or dip soldering.
Usually, the electronic products we use are designed by PCB plus various capacitors, resistors and other electronic components according to the designed circuit diagram, so all kinds of electrical appliances require various SMT patch processing technologies to process.
