PCBA is the core of electronic products, and product reliability, ease of use and stability are closely related to PCBA quality. Therefore, in the process of purchasing PCBA, it is necessary to pay close attention to the quality control points of PCBA, and use a professional eye to examine whether each PCBA board meets the application requirements of electronic products.

　　 1. The reliability of PCBA components welding.

　　The reliability of PCB and component soldering directly determines the performance of electronic products in use. With the in-depth use of the product, the circuit board suffers from oxidation, heat radiation, drop, overload use and other harsh conditions, which will cause welding problems when the OKPCBA board leaves the factory and cause the product to fail. In addition, in PCBA processing, whether to use regular products. Brand components is also very important to the quality of electronic products. Many used or counterfeit parts will break and fail after prolonged use. The PCB is still the same. According to the application environment of the product, in order to prevent the influence of PCB deformation and heat, all these factors need to be considered when purchasing PCBA, and strict testing should be carried out.

　　 2. PCBA aging test performance report.

　　 When purchasing large quantities of PCBA, strict aging tests must be carried out. Give the PCBA board extremely strict conditions of use, and test its stability and reliability. Many companies omit this step in order to save costs. As a result, batch products are defective in the hands of customers, causing greater losses. Therefore, when purchasing PCBA, it is recommended to put forward aging test requirements for bulk products, configure aging test fixtures, and require suppliers to provide aging test performance reports.

　　 3. PCBA assembly process management.

　　The assembly process of PCBA board, case and package is also very important. Many improper operations in the assembly process can also cause damage to the soldered parts that have passed the PCBA board test, resulting in defects after assembly. The PCBA supplier's assembly process needs to have strict operating instructions and supervise the workers to complete the process according to the process.

　　 4. The cleanliness of the PCBA board surface.

　　 The cleaning of the PCBA board is very important. Many hand-soldering tin dross and flux, if left on the PCBA surface, will cause unpredictable adverse risks in the future use of electronic products. Therefore, PCBA manufacturers must be required to perform professional ultrasonic cleaning on all batches of PCBA boards to prevent finger contamination of the boards.

　　 5. Purchase after-sales service capabilities of PCBA suppliers.

　　 When purchasing PCBA, it is also very important to evaluate the supplier’s after-sales service capability. Smart people make mistakes. With the deepening of batch manufacturing, some undesirable phenomena will appear. At this time, the ability of PCBA manufacturers to respond quickly and cooperate in a timely manner is particularly important.

　　 6. When buying PCBA, give the manufacturer a little more profit.

　　 With the development of the circuit board and SMT processing industry, the price of PCBA is extremely transparent, so only a little comparison or calculation can avoid the possibility of being slaughtered. Profit is the driving force for enterprises to serve customers. With profits, it can provide services and higher standards of quality control. In view of this, in the process of acquiring PCBA, it is necessary to abandon the thinking of always bargaining prices and give PCBA manufacturers appropriate profits, which will help them make good products and maximize their own interests.

　　PCBA procurement is a multi-step evaluation including technology, management, and service, which requires procurement personnel to conduct inspections from multiple angles to lay a solid foundation for the PCBA manufacturing process of electronic products.