Deep Learning Based Defect Detection Research on Printed Circuit Boards

As computer vision and deep learning detection techniques advance rapidly, their use in identifying defects has become more common across various industries. The significance of Printed Circuit Boards (PCBs) in contemporary electronic devices is undeniable, as they substantially influence the functionality and durability of these products. Thus, utilizing deep learning models for identifying flaws in Printed Circuit Boards (PCBs) is of particular importance. The focus of this study is primarily on examining PCB defect identification utilizing deep learning techniques. Firstly, it introduces the importance and development history of PCBs in the electronics and information industry. It then offers a comprehensive review of the existing research on conventional PCB defect detection approaches alongside methodologies grounded in deep learning. Following that, the structure of the YOLOv8 object detection model and its key technologies are elaborated. Lastly, the superior performance of YOLOv8 in PCB defect detection tasks is verified through comparative experiments. According to the evaluation metrics of the algorithm, the average detection accuracy reaches 92.3%, and the Frames Per Second (FPS) value reaches 157.2, meeting the accuracy requirements for PCB defect detection in the industrial domain.