Functions of printed circuit boards

Printed circuit boards have the following functions in electronic equipment.
(1) Provide mechanical support for fixing and assembling various electronic components such as integrated circuits, realize wiring and electrical connection or electrical insulation between various electronic components such as integrated circuits, and provide the required electrical characteristics.
(2) Provide solder mask patterns for automatic welding, and provide identification characters and patterns for component insertion, inspection, and maintenance.
(3) After electronic equipment uses printed circuit boards, due to the consistency of similar printed circuit boards, manual wiring errors are avoided, and electronic components can be automatically inserted or mounted, automatically soldered, and automatically inspected, ensuring the quality of electronic products, improving labor productivity, reducing costs, and facilitating maintenance.
(4) Provide the required electrical characteristics, characteristic impedance, and electromagnetic compatibility characteristics for circuits in high-speed or high-frequency circuits.
(5) Printed circuit boards with passive components embedded inside provide certain electrical functions, simplify electronic installation procedures, and improve product reliability.
(6) In large-scale and ultra-large-scale electronic packaging components, they provide effective chip carriers for miniaturized chip packaging of electronic components.