If electronic devices are compared to a complex living organism, then the PCB is its neural network. Just like the human nervous system controls and coordinates the work of various organs, PCBs are responsible for transmitting electrical signals and coordinating the work of various electronic components in electronic devices.

The design of PCB is a high-tech task that requires full consideration of the functionality, performance requirements, and working environment of electronic devices. A good PCB design should not only ensure the accuracy and efficiency of signal transmission, but also consider electromagnetic compatibility, thermal management, and manufacturability.

In modern electronic products, the density of PCBs is increasing, which means more electronic components are integrated into smaller spaces. This high-density assembly technology enables electronic devices to become smaller, while also requiring more refined and complex PCB design and manufacturing.

The manufacturing process of PCB involves various technologies and processes, including photolithography, etching, drilling, and coating. Each step requires precise control to ensure the quality and reliability of the final product.

Overall, PCB is a crucial component of electronic devices, and its design and manufacturing quality directly affect the performance and reliability of electronic devices. Only high-quality PCBs can support the complex functions and high-performance requirements of modern electronic devices.