The ultra-thin flexible high-performance aluminum-based printed board is not only the most ideal bearing device for the lighting system of new vehicles, but its thickness is only 35 microns. Not only that, it can also provide high thermal performance and good working temperature. The thermal resistance is as low as 0.1 K·cm2/W, which provides good heat dissipation conditions for high-power LED components, and at the same time, it can be bent more than 100,000 times and maintain its good electrical performance, so that the product can adapt to more and more The design requirements of complex multi-layer printed boards are still intact after 600,000 hours of UL certification. What is more valuable is that it provides the best thermal management solution with high thermal conductivity, low thermal resistance and relatively high thermal conductivity. good electrical performance.
Process of flexible super thin aluminum based PCB
The main component of the flexible aluminum substrate is Na-Safill alumina. This alumina is different from the previous alumina. It can maintain plasticity and good resilience under high tensile strength, giving people a soft, silky feel. Because of the existence of small pores of 2 pm~10 pm and a large specific surface area (100 m2/g~150 m2/g) in its crystallites, such a microstructure endows it with a macroscopic superlative Strong insulating properties and thermal conductivity.
Degreasing - Alkaline Etching - Chemical Polishing - Electro-oxidation - Sealing - Post-treatment - Drying
Performance of flexible super thin aluminum based PCB
The average resistivity of the flexible aluminum substrate is slightly higher than that of pure copper (1.692 μΩ/cm); the ultra-thin flexible aluminum substrate not only has good flexibility, but also has good thermal conductivity, and can withstand 30 kV high-voltage tests. And at 118 ℃ the temperature life is as long as 600,000 hours and the dielectric strength is only reduced to half of the initial value, which is completely suitable for the installation of high-power LED components.
Application of flexible super thin aluminum based PCB
Automotive lighting systems, LED components, lighting and power electronics industries.
