Aluminum PCB (metal-based thermal plate contains aluminum plates, copper substrates and iron substrate), it is commonly seen in LED lighting products. Both sides of the white sides are welded LED pin, the other side presents aluminum natural color, and generally it is applied thermal coagulation pulp thermally conductive portion after contact. There is ceramic PCB. It is high plastic low-alloyed Al-Mg-Si series alloy PCB, it has a good thermal conductivity, electrical insulation properties and mechanical processing properties, aluminum PCB, using the same thickness as compared with the conventional FR-4, the same the line width,aluminium pcb is capable of carrying higher currents, aluminum PCB breakdown voltage is up to 4500V, the thermal conductivity is greater than 2.0, to the aluminum PCB in the industry.
Cooling knowledge of Aluminum PCB Circuit
The aluminum PCB circuit products are composed of the circuit layer (copper layer), thermal insulation layer and the metal substrate. Circuit layer requires a large current carrying capacity, which should be used thick copper foil thickness generally 35μm to 280μm; thermal insulation layer is the core technology of the PCB aluminum plate where it is usually filled by a special ceramic special polymer constitute, small thermal resistance, excellent viscoelastic properties, the ability of anti heat aging, able to withstand the mechanical and thermal stresses. The IMS-H01, IMS-H02 and LED-0601 high-performance thermal insulation layer of PCB aluminum made by the pcb board manufacturer all use such technology, it has a very good thermal conductivity and high strength electrical insulation properties; the metal grassroots is the support member of aluminum PCB, is required to have high thermal conductivity, generally aluminum, also can be used copper (copper which is able to provide better thermal conductivity), suitable for drilling, punching and cutting, and other conventional machining.
Characteristics of Aluminum PCB
PCB board is composed of the circuit layers (copper foil layers), the thermal insulating layer and the metal substrate. The circuit layer requires a large current carrying capacity, which should be used thick copper foil thickness 35μm "280μm; thermal insulation layer is the core technology of the PCB aluminum PCB where it is usually filled by a special ceramic special polymer constitute, small thermal resistance, excellent properties, the ability to heat aging, able to withstand the mechanical and thermal stresses. Generally, aluminum PCB circuit is also can use copper (copper which is able to provide better thermal conductivity), is suitable for cutting, and other conventional machining.
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