PCB Technical - 6 precautions for purchasing in PCBA processing

PCBA is the core of electronic products, just like the position of the Chinese army in the battle of the three armies. Product reliability, ease of use and stability are closely related to PCBA quality. Therefore, in the process of purchasing PCBA, it is necessary to urgently pay attention to PCBA quality control points, 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 the soldering of PCB circuit boards and components directly determines the performance of electronic products during use. With the in-depth use of products, the circuit boards suffer from oxidation, heat radiation, drop, and overload use, which will cause them to leave the factory.

OK's PCBA board began to show welding problems, and the product failed. In addition, in PCBA processing, whether to use brand original and genuine components is also crucial to the quality of electronic products. Many second-hand or counterfeit components will explode in failure during long-term use. This is still the case for PCB circuit boards. According to the application environment of the product, to prevent the deformation of the PCB and the influence of heat, these factors need to be taken into consideration when purchasing PCBA and undergo rigorous testing.

2. PCBA aging test performance report

When purchasing PCBAs in large quantities, strict aging tests are required. Test the stability and reliability of the PCBA board under extremely strict conditions of use. In order to save costs, many companies omit this step. 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 batch 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, housing, and packaging is also more important. Improper operation of many assembly processes can also cause damage to the soldered components on the PCBA board that is tested OK, and cause 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. Cleanliness of PCBA board surface

The cleanliness of the PCBA board surface is very important. If a lot of hand-soldering tin slag, flux, etc. remain on the PCBA surface, it will cause unpredictable risks in the use of electronic products in the future. Therefore, PCBA manufacturers must be required to perform professional ultrasonic cleaning on all batches of PCBA panels and prevent fingers from contaminating the panels.

5. Purchasing after-sales service capabilities of PCBA suppliers

When purchasing PCBA, evaluation of the supplier's after-sales service capability is also very important. A wise man must make a mistake when he thinks about it. With the deepening of mass manufacturing, undesirable phenomena will definitely occur. At this time, the ability of PCBA manufacturers to respond quickly and cooperate in a timely manner is particularly important.

6. Give manufacturers a little more profit when purchasing PCBA

With the increasing development of the circuit board and SMT processing industries, the price of PCBA is extremely transparent. As long as a little comparison or calculation is required, the possibility of being slaughtered can be avoided. Profit is the biggest driving force for a company to serve customers. Only with profit can service and the highest standard of quality control. In view of this, in the process of purchasing PCBA, it is necessary to abandon the thinking of always bargaining prices and give PCBA manufacturers appropriate profits, which will help the perfect manufacturing of their own products and maximize self-interest. In this regard, companies in developed countries such as Japan have performed extremely well.

Purchasing PCBA is a matter of multi-step evaluation including technology, management, service, etc. It needs to be reviewed by purchasing personnel from multiple angles to lay a good foundation for the PCBA manufacturing process of electronic products.