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What's the difference between Flex PCB and Rigid PCB

2020-06-10

Flexible PCB is a kind of printed circuit board, which is called flexible circuit board, and we call it FPC PCB board. FPC usually uses PI as the base material, which can stop bending and flexing at will. PCB is a so-called rigid circuit board, which is usually called a hard board. Generally, FR4 is used as the base material, and it cannot be bent or flexed. The FPC flexible circuit board is used in the link that requires repeated flexing and some small parts. The Rigid PCB circuit board is often used in some centers that do not require bending and are relatively hard.


 


FPC flexible circuit board is not only a circuit board that can be flexed, but also an important design method for connecting into a flat circuit structure. This structure can be used with other electronic product designs to build various applications. Regarding rigid PCB circuit board, unless the circuit is made flat by means of grouting glue, otherwise the circuit board is generally flat. Therefore, the design of electronic products must be fully applied to the plane space, FPC flexible circuit board is a good treatment plan. The common space expansion plan for PCB rigid circuit boards is to use slots and interface cards. FPC flexible circuit boards can be made with similar structures by way of adapter design, and are more flexible in directional design.

 

FPC flexible circuit board can use terminal connection method to stop line connection, but can also use soft and hard separation boards to avoid these connection mechanisms. Using one connection FPC can connect two hard boards into a set of parallel circuit systems, and can also be transferred to any Angle to conform to the shape design of different products. A single FPC can use the planning method to configure many hard boards and connect them. This approach reduces the interference of connectors and terminals, and can improve signal quality and product trust. 


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