Do you know what advantages does flexible circuit board have? Today Vility will tell you some advantages of FPC.
FPC is one type of PCB, also called flexible printed circuit. FPC is made of flexible substrates such as polyimide or polyester film, and has the advantages of high wiring density, light weight, thin thickness, bendability, and high flexibility.
It can withstand millions of times of dynamic bending without damaging the wires. It can move and expand freely according to the requirements of the space layout, realize three-dimensional assembly, and achieve the effect of integrating component assembly and wire connection. It has the incomparable advantages of other types of circuit boards.
The advantages of flexible circuit board:
Flexibility
A significant advantage of using FPC flexible board is that it can more easily route and connect in three-dimensional space, and can also be rolled or folded for use. As long as it is curled within the allowable radius of curvature, it can withstand thousands to tens of thousands of uses without damage.
Reduce size
In the assembly and connection of components, compared with the use of conductor cables, the conductor section of the FPC flexible board is thinner and flatter, which reduces the size of the conductors, and can be formed along the casing, making the structure of the equipment more compact and reasonable, reducing the installation and connection requirements. volume. Compared with rigid PCB, space can be saved by 60~90%.
Reduce weight
In the same volume, the weight of FPC circuit board and wire and cable can be reduced by about 70% under the same current carrying capacity, and the weight can be reduced by about 90% compared with rigid PCB.
Assembly Consistency
It is assembled and connected with FPC, which eliminates the error when wiring with wire and cable. As long as the processing drawings are proofread and passed, all the winding circuits produced in the future are the same. There will be no misconnection when installing the cable.
Electrical parameter design controllability
According to usage requirements, designers can control capacitance, inductance, characteristic impedance, delay and attenuation when designing FPC flexible boards. Can be designed to have the characteristics of a transmission line. Because these parameters are related to wire width, thickness, spacing, insulation thickness, dielectric constant, loss tangent, etc., this is difficult to achieve when using wire and cable.
The end can be soldered as a whole
Like rigid PCBs, FPC flexible boards have terminal pads, which can eliminate wire stripping and tinning, thereby saving costs. The terminal pads are connected with components, devices, and plugs. Dip soldering or wave soldering can be used to replace the manual soldering of each wire.
Material usage is optional
FPC flexible board can be manufactured with different base materials according to different usage requirements. For example, in assembly applications requiring low cost, polyester film can be used. In demanding applications where superior performance is required, polyimide films can be used.
Low cost
The total cost can be reduced by using FPC flexible board to install and connect.
Due to the consistency of various parameters of the wires of the FPC flexible board; the overall termination is implemented, which eliminates the mistakes and rework that often occur when the cable conductors are installed and connected, and the replacement of the FPC flexible board is more convenient.
The application of the FPC soft board simplifies the structural design, it can be directly adhered to the component, and the clip and its fixing parts are reduced.
For conductors that need to be shielded, the price of FPC is lower.
Continuity of processing
Since the flexible foil-clad boards can be continuously supplied in rolls, continuous production of FPC flexible boards can be realized. This also helps reduce costs.