PCB News - About various application fields of FFC cable

FFC cable manufacturer

Because the FFC cable is a kind of FPC, its composition is the same as that of FPC. FFC is generally elongated, and both ends are designed as pluggable pins, which can be directly connected to the connector or welded to the product. The middle is generally a circuit, because the FFC cable needs a certain degree of flexibility, therefore, the base material is generally made of rolled copper, which is resistant to tortuous and flexible. The high-precision FFC cable also has the advantages of good heat dissipation and solderability, easy assembly and connection, and low overall cost. Flexible circuit boards are divided into single-sided, double-sided and multi-layer boards. The base material used is mainly polyimide copper clad laminate. The material has high heat resistance, good dimensional stability, and a covering film with mechanical protection and good electrical insulation properties through pressing to form a product. The surface and inner conductors of the double-sided, multilayer printed circuit board are electrically connected to the inner and outer circuits through metallization.

【High-precision FFC cable】Type:

1. Single panel

The single-sided PI copper-clad material is used after the circuit is completed, and then a protective film is covered to form a flexible circuit board with only a single-layer conductor.

2. Ordinary double panel

After the double-sided circuit is completed using double-sided PI board copper-clad material, a protective film is added on both sides to become a circuit board with double-layer conductors.

3. Substrate to generate single panel

In the circuit manufacturing process using pure copper foil material, a protective film is added on each side of the circuit board to form a circuit board with only a single layer of conductors but exposed conductors on both sides of the circuit board.

4. The substrate generates double panels

Use two layers of single-sided PI copper-clad material in the middle to be laminated with adhesive glue that opens at a specific position to become a double-sided conductor circuit board with a two-layer separation structure in a local area to achieve a layered area. Circuit board with high flexibility.

Various application fields of FFC cable

The flexible board with this structure of high-precision FFC cable is a flexible board with a simple structure. Usually the base material + transparent glue + copper foil is a set of purchased raw materials, and the protective film + transparent glue is another purchased raw material. The copper foil needs to be processed by etching and other processes to obtain the required circuits, and the protective film needs to be drilled to expose the corresponding pads. After cleaning, use the rolling method to combine the two. Then, the exposed pad part is electroplated with gold or tin for protection. In this way, the slab is ready. Generally, small circuit boards of corresponding shapes are also stamped. There are also cases where the solder mask is printed directly on the copper foil without a protective film, so that the cost will be lower, but the requirements are not high but the price needs to be as low as possible. The method of applying the protective film is to apply the protective film. FFC cable is a printed circuit made of flexible insulating substrate. Flexible circuits provide excellent power, which can meet the design needs of smaller and higher-density installations, and also help reduce assembly processes and enhance reliability. Circuit boards are a solution to meet the requirements of miniaturization and movement of electronic products. It can be bent, wound, and folded freely, can withstand millions of dynamic bending without damaging the wire, can be arranged arbitrarily according to the space layout requirements, and can move and expand in three-dimensional space, so as to achieve the integration of component assembly and wire connection The flexible circuit board can greatly reduce the volume and weight of electronic products, and is suitable for the development of electronic products in the direction of high density, miniaturization and high reliability.

High-precision FFC cable application:

It is widely used in the circuit connection between various electronic equipment, electronic equipment and power supply in sealed containers, (application examples: ultra-low temperature reaction equipment parts, high-temperature environment mechanical insulation parts, etc.); wear resistance (oil-free self-lubrication, application examples: Compressor sliding vane, motor high temperature FPC connector, flexible cable)

Product application: products are widely used in audio, digital machines, camcorders, car stereos, televisions, typewriters, calculators, cash registers, telephones, CD-ROMs, VCDs, DVDs, copiers, printers, wireless instruments, video-calling equipment Product high-tech pioneer.