Special Carrier Plates Of FPC

FPC has high wiring density, light weight, thin thickness, can be folded and bent and other characteristics, these characteristics make it in the SMT process is easy to be damaged and difficult to ensure the flatness of FPC, so the use of special carriers is very necessary. Special carrier through its special design, such as flat surface, reasonable fixed way, etc., can effectively protect the FPC in the placement process, to avoid its bending, extrusion and other external forces and damage, and to ensure that the FPC in the placement process to maintain a stable position and shape, which is conducive to the uniform distribution of solder and good welding. Carrier plate material requirements for thin, light, high strength, less heat absorption, fast heat dissipation, and after a number of thermal shock warping deformation is small. Commonly used carrier plate materials are synthetic stone, aluminium plate, silicone plate, special high temperature magnetised steel plate and so on.

Ordinary carrier plates:

Ordinary carrier plate is easy to design, fast proofing. Commonly used ordinary carrier plate material is engineering plastics (synthetic stone), aluminium plate, etc., Engineering plastics carrier plate life is about 3000-7000 times, easy to operate, better stability, not easy to absorb heat, not hot, the price is more then 5 times compared with aluminium plate . Aluminium carrier plate absorbs and dissipates heat quickly, there is no temperature difference between inside and outside, deformation can be simply repaired, cheap, long life, the main disadvantage is too hot, have to use insulated gloves to take.

Silicone carrier plates:

The material is self-adhesive, FPC directly stick to it, without tape, and easier to remove, no residual adhesive, and high temperature resistance. Silicone carrier plates in the use of the process will be aging viscosity decline, the use of uncleaned viscosity during the period will also decline, the life of a shorter, up to 1000-2000 times, the price is also higher.

Magnetic Carrier plates:

special high temperature (350 ℃) steel plate to strengthen the magnetisation performance processing, to ensure that the reflow soldering process ‘permanent magnetism’, good elasticity, good flatness, high temperature without deformation. Because of the enhanced magnetisation properties of the steel sheet has been the FPC surface compression and flattening, FPC in the reflow soldering to avoid being blown up by the reflow soldering wind weld defects, to ensure that the welding quality is stable, improve the yield rate. As long as it is not man-made damage or accidental damage, it can be used permanently and has a long life. Magnetic fixtures also provide thermal protection for FPC, and will not cause any damage to FPC when removing the board. However, magnetic fixtures are complicated in design and high in unit price, and only have cost advantages in mass production.

With the development of electrification and intellectualize of automobiles, FPC is more and more widely used in the field of vehicle mounting, which puts forward higher requirements on the production efficiency and quality of FPC mounting. Specialized carriers can meet the needs of mass production and ensure the efficiency, stability and reliability of the FPC placement process.

FPC placement using special carriers is to protect FPC from damage, improve production efficiency, reduce production costs and adapt to the needs of mass production and other considerations. In actual production, enterprises should choose the appropriate special carrier according to their own product characteristics and production needs, in order to improve production efficiency and product quality.