PCBA board and circuit board processing of ultraviolet sterilizer

PCBA board and circuit board processing of ultraviolet sterilizer

Basic process of SMT patch processing in Dongguan

Nowadays, SMT chip processing technology is more and more widely used in the electronic industry. In order to realize the miniaturization of electronic products, make them thinner and lighter, and be more multifunctional, the requirements for the design of circuit boards are becoming more and more strict, and the technical requirements are becoming higher and higher. There must be a strict processing process. Today, Xing Enyu will give you a brief introduction to the SMT patch processing process.

1. First of all, there must be a detailed patch location map before SMT patch processing, which requires our customers to provide samples, design and develop according to the provided samples, and prepare relevant procedures.

2. Before welding electronic components, the solder paste needs to be missed on the pad with steel mesh. These are processed by silk screen printing machine.

3. SMT patch processing in order to fix the electronic components on the PCB so that it is not easy to loosen, glue must be dropped on the fixed position of the PCB.

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4. Then, the electronic components to be assembled are accurately installed on the PCB according to the position on the drawing through the mounter.

5. Melt the patch adhesive on the PCB to make the PCB board and the assembled electronic components stick together better. It won't fall easily with how you touch and shake.

6. After SMT patch processing and welding, many residues will be left on the PCB. These residues are harmful to human body and will affect the quality of PCB. Therefore, they need to be removed and can be eliminated with the help of flux.

7. After completion, it is also necessary to detect whether the assembly position is accurate, how the quality is after assembly, and whether it is qualified. The detection needs to be carried out with the help of magnifying glass, microscope, function tester and other relevant measuring tools.

8. If any fault is found after SMT chip processing and inspection, the PCB needs to be reworked, reassembled and checked for position.

Label: SMT patch processing