1、 Preliminary preparation
The first step in PCB surface mount processing is preliminary preparation. This includes obtaining PCB files, BOM (Bill of Materials), and relevant technical requirements provided by the customer. Subsequently, the production of engineering data, such as patch coordinate files, steel mesh files, etc., is carried out to ensure the smooth progress of subsequent production.
2、 Material Preparation and Inspection
In the material preparation stage, purchase the required components according to the BOM table and conduct incoming inspection. This step is crucial because the quality of the components directly affects the performance of the final product. Through strict inspection procedures, ensure that all components meet quality standards.
3、 SMT surface mount processing
The next step is the core process of SMT surface mount processing. Firstly, fix the PCB board on the worktable of the SMT machine and accurately mount the components onto the PCB board according to the SMT coordinate file. In this process, the accuracy and stability of the placement machine are crucial, as they directly affect the quality and efficiency of the placement.
4、 Reflow soldering
After the SMT is completed, reflow soldering is required. This step melts the solder by heating, thereby firmly soldering the components onto the PCB board. The temperature and time control of reflow soldering are crucial, as excessively high or low temperatures and long soldering times can cause damage to components and PCB boards. What is SMT reflow soldering
5、 Quality inspection and assembly
After welding is completed, perform quality inspection on the PCB board, including visual inspection, electrical performance testing, etc. Ensure that all components are correctly mounted and soldered properly, without defects such as short circuits or open circuits. Finally, assemble according to customer requirements, such as installing the casing, connecting wires, etc., to complete the manufacturing of the final product.
The basic process of PCB surface mount processing includes preliminary preparation, material preparation and inspection, SMT surface mount processing, reflow soldering, and quality inspection and assembly. Each step is crucial, and together they constitute the core process of PCB surface mount processing.
