Circuit boards can be divided into PCB circuit boards and FPC circuit boards, which are the foundation of electronic information products. Due to their miniaturization and visualization of circuits, they play an important role in mass production of fixed circuits and optimization of electrical layout. Therefore, the application fields of circuit boards almost involve all electronic products, including communication and related equipment, computers and related equipment, consumer electronics, automotive electronics, aerospace electronics, and other industries. Driven by the development trend of informatization and digitization, the PCB industry has broad market space and good development prospects.