SMT stands for surface mount technology and allows for electronics components to be installed and welded to printed circuit boards or PCBs. The process is summarized as follows:
Firstly, we align the PCB template on the surface of the board, and use the scraper to paste the solder paste on the surface of the template, ensuring that the coating is uniform and the quantity of the solder paste is controllable.
SMT is an electronic assembly technology. It originated in 60s. It was initially developed by IBM and became mature in the late 80s. This technology is to install electronic components, such as resistors, capacitors, transistors, integrated circuits, etc. on printed circuit boards, and form electrical connections through brazing.
1. Automatic production and welding are allowed, saving time and expenses. It also results in a more consistent circuit operation.
2. Compared with SMD, SMT has fewer holes in the PCB.
3. The cost of SMT is lower than the equivalent part of the through hole.
4. Any side of the printed circuit board can be placed on components.
5. SMT component is smaller.
Glue dispensing: most of the circuit board used now is double-sided, in order to prevent the input surface of components falling off because of the solder paste melting again when second return, so in the input surface adding glue dispensing machine, it is drop the glue to the fixed position of PCB, its main role is to fix the components to the PCB board. The equipment used is a high efficiency glue dispensing machine, which is located at the front end of SMT production line or behind the detection equipment.
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