1. interconnection: providing mechanical and electrical connection/disconnection, consisting of connecting plugs and sockets, and interconnecting cables, brackets, cabinets or other PCBs; However, the actual connection with the circuit board must be through surface mount contact.

2. Active electronic components: In analog or digital circuits, you can control the voltage and current yourself to produce gain or switching effect, that is, you can change your basic characteristics in response to external signals.

3. Passive electronic component: When an electrical signal is applied, it does not change its own characteristics, that is, it provides a simple and repeatable response.

4. Odd shape: Its geometric factor is strange, but not necessarily unique. Therefore, it must be installed by hand, and its shell shape (in contrast to its basic function) is not standard, such as many transformers, mixed circuit structures, fans, mechanical switch blocks and so on.

SMT material technology

Smt chip has high processing and assembly density, small size and light weight of electronic products. The size and weight of the patch component are only about110 of the traditional plug-in component. After SMT is generally used, the weight of electronic products is reduced by 40%~60% and 60%~80%. High reliability and strong anti-vibration ability.

The defect rate of solder joints is low. Good high frequency characteristics. Reduce electromagnetic and radio frequency interference. It is easy to realize automation and improve production efficiency. Reduce the cost by 30%~50%. Save materials, energy, equipment, manpower, time, etc.

It is precisely because of the complex process of smt chip processing that many smt chip processing factories have emerged, specializing in smt chip processing. In Shenzhen, thanks to the vigorous development of electronic industry, smt chip processing has made an industry prosperous.