In the business landscape, quality serves as the cornerstone of enterprise survival. To ensure the longevity and success of a PCB factory, stringent quality control measures are imperative. This discourse delves into the essential steps required to control the quality of PCB boards.

1. Implementing a Quality Control System:
   • The foundation of quality control lies in a robust system, often embodied by ISO9001. This system involves real-time quality measurement and supervision, providing unified standards for effective quality management.
2. Rigorous Raw Material Inspection:
   • Initiate strict quality inspection at the raw material stage, promptly recording and addressing any identified issues. Ensuring the quality of raw materials is pivotal to achieving high-quality PCBs, averting potential problems like bubbles, delamination, cracks, warping, and uneven thickness.
3. Production Process Oversight:
   • Conduct quality inspections and patrol checks at each stage of the production process. Clearly defined operation instructions for each process facilitate comprehensive control of PCB quality, preventing deviations and ensuring consistency.
4. Sampling Inspection Post-Production:
   • Despite quality checks during raw material inspection and the production process, defects may still occur. Post-production, conduct sampling inspections on the entire batch of PCB boards. Only those meeting the standard pass rate are permitted to leave the factory.
5. Accountability and Remedial Actions:
   • Take full responsibility for the quality of every PCB board leaving the factory. In case the sampling inspection pass rate falls short of the standard, full inspection and necessary maintenance measures are undertaken to rectify issues.

Conclusion: Establishing an effective quality control framework, encompassing raw material scrutiny, comprehensive production oversight, and stringent post-production inspections, ensures the production of high-quality PCB boards, fostering the long-term success of a PCB factory.