The flexible circuit board and rigid circuit board | What is the difference?

What does flexible circuit board and rigid circuit board mean??What is the difference?

Flexible printed circuit board

The printed circuit board?is divide into a rigid printing plate and flexible printed circuit plate according to the materials. The rigid printing plate production has phenolic paper laminate, epoxy paper laminate, glass polyester felt laminate, laminate printing plate. Flexible epoxy glass cloths are also flexible printed circuit boards (FPC). Which are of polyimide or polyester films with high reliability and high curvature.

This circuit board has good heat dissipation. Which bent, folded, and spiralized. And can move and expand in 3D space. The FPC can be used to reduce the volume and realize light quantization, miniaturization, and fine-type. Thus realizing the integration of component devices and wires. FPC is widely used in computers, communications, aerospace, and electronic devices. domestic use.

Flexible Circuit Board Features:

(1) FPC is small and light.

(2) FPC can move, bend and twist.

(3) FPC has excellent electrical performance, dielectric properties, and heat resistance.

(4) FPC has high reliability of assembly and assembly operation.

(5) the FPC is installed with three connections.

(6) FPC is conducive to thermal diffusion.

(7) low cost.

(8) continuity of processing.

The Product Features of Flexible Circuit Board:

A soft circuit board is a printed circuit is of the flexible insulating base material. Which has the advantages of many hard printed circuit boards.

The product is small, lightweight, greatly reducing the volume of the device, the application of high-density electronic products, miniaturization, lightweight, thin-type, high - reliable needs.

With high-strength development direction to the bending, can freely bent, winding, twisting, folding, stereo wiring, according to the spatial arrangement for any arrangement, change shape, and any movement and scale in three-dimensional space, in order to achieve component assembly and cables connect integration.

Excellent electrical performance, high temperature, and fire resistance.Stable chemical change, good stability, and high reliability. With higher mounting reliability, it is convenient for the circuit design and the mounting workload is greatly reduced, and it is easy to ensure the performance of the circuit and reduce the cost of the whole machine.

Additional mechanical stability is achieving by increasing the strength through the use of higher materials. The combination of soft and hard design also makes the slight deficiency of the substrate flexible in component capacity.

Rigid Circuit Board Characteristics:

High Density: For more than 100 years, the high-density printing plate develops with the improvement of integrated circuit integration and installation technology.High reliability: Through a series of tests, trials, and aging tests, Mad?PCB?is a guarantee to work reliably for a long period of time (generally 20 years).Design: For different PCB properties (electrical, physical, chemical, mechanical, etc.), the printing plate design can achieve by design normalization, standardization, etc., which is short and efficient.Productive: the adoption of modern management, can lead to standardization, scale (quantity), automation, and other production, ensure the consistency of product quality.Test capacity: the test method, standard test, a variety of test equipment and instruments has establish to detect and verify the qualification and shelf life of PCB-containing products.

Rigid circuit board function:

Electronic equipment adopts PCB, due to the consistency of the same kind of PCB. In order to avoid artificial connection error, and can realize automatic instrumentation or SMD electronic components. Automatic welding, automatic detection, ensure the quality of the Electronic equipment. Improve work productivity, reduce cost, and easy maintenance.

Differences between flexible circuit boards and rigid circuit boards:

There are similarities and differences between rigid circuit boards and flexible circuit boards. For the flexible circuit board, the wider rigid circuit board application. Because the circuit board is rigid above. So most of the rigid circuit board design elements are used in the design. So what is the difference between a rigid circuit board and a circuit board flexible?

1. The carrying capacity of the conductor: Compared with the rigid circuit board, the flexible circuit board has a relatively small heat dissipation performance, so it should provide enough wire width. Considering the heat dissipation of the flexible circuit board, it is necessary to give the conductor extra width or spacing.

2. Shape: In the general case, the rectangle is selected, which is very good at saving the base material, and there should not be enough free margins near the edge.If the sharp corners can cause a tear in the plate. Therefore, the width and spacing of the smallest cables should minimize, and the smooth transition. Should be as smooth as possible. The sharp angle causes stress to concentrate naturally, causing the conductor to fail.

3. Flexibility: Rigid circuit boards are of course less flexible than flexible circuit boards. Which have better performance for a large number of bending cycles.

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