Quickly understand the entire Surface Mount Technology process
Publication time:2023-09-19    Source of the article:

The SMT (Surface Mount Technology) shop is an important part of the electronics manufacturing process and is used to produce surface mount components on circuit boards. The following is an introduction to the SMT placement workshop and an overview of the SMT placement process:


The SMT shop is a production area dedicated to the placement of electronic components. In the SMT shop, various surface patch components are precisely installed on the circuit board using advanced equipment and technology.



The SMT placement process typically consists of the following major steps:


1. Panel preparation: Before the SMT workshop starts, it is necessary to prepare the circuit board panel. This includes cleaning and inspecting the panel to ensure that the surface is flat and free of damage.


2. Chip machine programming: According to the design and component requirements of the circuit board, the operator needs to write the program of the chip machine. The program instructs the mounter to precisely install the component in the correct position.


3. Coating of glue or solder paste: As needed, apply glue or solder paste to the appropriate position of the circuit board. These materials help secure and connect the patch elements.


4. Automatic placement: Under the guidance of the automatic placement machine, the placement components are removed from the feeder and accurately placed on the circuit board at a predetermined position. These chip components can be resistors, capacitors, integrated circuits and other small components.


5. Hot melt welding: For the patch components that need to be welded, they are connected to the pad on the circuit board through the hot melt welding process. This can be done using equipment such as reflux furnaces or wave soldering machines.


6. Visual inspection: After the patch is completed, visual inspection is carried out to verify the correctness and quality of the patch. This may involve the use of automated optical inspection devices or manual inspections to identify any errors or defects.


7. Follow-up treatment: After the patch is completed, follow-up treatment steps are carried out, such as cleaning, cutting off excess pins, marking and packaging. This ensures that the final product of the PCB meets quality standards and customer requirements.



SMT technology has higher production efficiency, better electrical performance, smaller size and weight advantages, and better high-frequency characteristics than traditional SMT technology. This makes SMT technology an advanced technology widely used in modern electronics manufacturing industry to meet the growing demand for electronic products.


The efficient operation and accuracy of the SMT shop is essential for electronics manufacturing. It allows for mass production and provides higher production speeds and better quality control. Through SMT technology, the electronics manufacturing industry is able to produce smaller, lighter, higher performance electronic products.

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