SMT, the full name is surface mount technology. SMT is a way to mount the components or parts onto the boards. Due to the better outcome and higher efficiency, SMT has become the primary approach used in the process of PCB assembly.
In the past, PCB manufacturers mainly used through-hole assembly to install components. But SMT has replaced the former assembly method with welding technology. And you can find the PCBs manufactured through SMT assembly procedure in all electronic industries, such as computers, telecommunications, smartphones, household appliances, etc. The general process of SMT assembly includes printing solder paste, mounting components, reflow soldering, AOI, or AXI.
The advantages of SMT assembly
· Small size and lightweight
Using SMT technology to assemble the components onto the board directly helps to reduce the entire size and the weight of the PCBs. This assemble method allows us to place more components in a restricted space, which can achieve compact designs and better performance.
· High reliability
After the prototype is confirming, the entire SMT assembly process is almost automated with precise machines, making it minimizes the errors that may be caused by manual involvement. Thanks to the automation, SMT technology ensures the reliability and consistency of the PCBs.
SMT assemble usually realizes through automatic machines. Though the input cost of the machines is high, the automatic machines help to reduce manual steps during SMT processes, which significantly improves the production efficiency and lower the labor costs in the long-run. And there are fewer materials used than through-hole assemble, and the cost would be decreased, too.