PCBA is the core of electronic products, akin to the strategic importance of the Chinese army in the historical Three Kingdoms period. Product reliability, ease of use, and stability are closely tied to PCBA quality. Therefore, during the PCBA purchasing process, it is crucial to focus on PCBA quality control points and utilize a professional perspective to ensure that each PCBA board meets the application requirements of electronic products.
1. Reliability of PCBA Component Soldering
The reliability of the soldering between PCB circuit boards and components directly impacts the performance of electronic products during use. As products are used extensively, circuit boards may experience oxidation, heat exposure, mechanical shocks, and overload conditions, which can affect their reliability.
1. OK’s PCBA boards began exhibiting soldering issues, resulting in product failures. Additionally, the use of genuine, brand-name components in PCBA processing is crucial to the quality of electronic products. Many second-hand or counterfeit components can fail catastrophically over time. This issue extends to PCB circuit boards as well. To mitigate deformation and thermal impact on PCBs, these factors must be considered during PCBA procurement, accompanied by rigorous testing.
2. **PCBA Aging Test Performance Report**
When purchasing PCBAs in large quantities, rigorous aging tests are essential to assess the stability and reliability of the PCBA boards under stringent conditions. To cut costs, some companies skip this crucial step, leading to defective products reaching customers and resulting in significant losses. Therefore, it is advisable to specify aging test requirements for bulk purchases, include aging test fixtures, and ensure suppliers provide detailed aging test performance reports.
3. **PCBA Assembly Process Management**
The assembly process involving PCBA boards, enclosures, and packaging is critically important. Improper handling during assembly can damage the soldered components on otherwise functioning PCBA boards, leading to defects post-assembly. PCBA suppliers should adhere to strict operating procedures and closely supervise workers to ensure compliance with the established process.
4. **Cleanliness of PCBA Board Surface**
Maintaining the cleanliness of the PCBA board surface is crucial. Residual soldering debris, flux, or contaminants can pose unforeseen risks to the electronic product’s performance. Hence, PCBA manufacturers should be required to conduct professional ultrasonic cleaning on all PCBA panels and prevent contamination from human contact.
5. **Evaluating PCBA Suppliers’ After-Sales Service Capabilities**
Assessing a supplier’s after-sales service capabilities is vital when purchasing PCBA. Issues inevitably arise as manufacturing scales up, and the ability of PCBA manufacturers to respond promptly and cooperate effectively is crucial.
6. **Allowing Manufacturers a Reasonable Profit Margin**
As the circuit board and SMT processing industries evolve, PCBA pricing has become highly transparent. By making a few comparisons or calculations, one can avoid overpaying. Profit is a key driver for maintaining high-quality service and control standards. Therefore, in PCBA procurement, it is beneficial to offer manufacturers a fair profit margin rather than constantly negotiating lower prices. This approach fosters better manufacturing quality and aligns with the interests of the purchaser. Companies in developed countries, such as Japan, have excelled in this regard.
Purchasing PCBA involves a multi-faceted evaluation process encompassing technology, management, and service aspects. A thorough review by procurement personnel from various angles is essential to establish a solid foundation for the successful manufacturing of electronic products.
