With the development of emerging technologies such as the Internet of Things and quantum computing, circuit boards are deeply integrated with them, expanding into new application areas. In IoT devices, circuit boards, as key components connecting various sensors and processors, need to have characteristics such as low power consumption, miniaturization, and high reliability to adapt to complex application environments. In the field of quantum computing, circuit boards are also constantly innovating, providing stable support for the connection and control of quantum bits, promoting the transition of quantum computing technology from theoretical research to practical applications, and potentially giving rise to more innovative products and services in the future.