Printed Circuit Board (PCB) is an essential core component in modern electronic products. It connects various electronic components such as resistors, capacitors, transistors, etc. by printing conductive patterns on an insulating substrate to achieve circuit functionality and signal transmission. The application range of PCB is extremely wide, from household appliances to aerospace equipment, almost all electronic devices cannot do without its support.

　　The main advantage of PCB lies in its high-density integration and automated production. Through multi-layer stacking and precision machining techniques, complex circuit designs can be achieved in limited space, greatly improving the performance and reliability of electronic devices. In addition, the standardized production and testing process of PCBs ensures high quality and consistency of products, reducing manufacturing costs and cycles.

　　During the design and manufacturing process, engineers use professional EDA software for circuit layout and simulation analysis to ensure the performance and stability of the circuit. With the advancement of technology, the design and manufacturing processes of PCBs are constantly developing. High density interconnect (HDI) technology, flexible circuit boards (FPC), and 3D packaging technology are becoming new trends in the industry, driving electronic products towards miniaturization and higher performance.