In the early days of electronic technology, circuits were made up of power, wires, switches and components. The components are wired together, and the elements are fixed in three dimensions in space. With the development of electronic technology, the function and structure of electronic products become very complex, and the layout of components and interconnection wiring are greatly restricted by space. Therefore, it is required to plan components and wiring.
PCB has the following functions in electronic equipment:
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