Aluminum PCBs

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WHAT IS AN ALUMINUM BOARD?

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Performance range of aluminum PCB


Aluminum PCB has a variety of good performance, which makes it one of the best PCB types.

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High level of heat dissipation


The aluminum PCB is better than FR4 based PCB in heat dissipation, it will be ideal choices for the products concerning high pressure and temperature. In addition, the heat generated by electronic equipment usually dissipates rapidly. As a result, the electronic components will face failure and possible damage due to high temperature. But for aluminum board, the situation is completely different, because they effectively solve the heat dissipation problem.

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Thermal expansion


As aluminum PCB effectively solves the heat dissipation problem, the thermal shrinkage and expansion problems of PCB components and various substances can be easily improved. In this way, the reliability, durability of electronic components and the whole machine are stable. In short, aluminum based PCB has done a good job in solving the thermal expansion and contraction problems of surface mount technology, because the heat generated by its electronic components is effectively dissipated.

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Dimensional stability


Aluminum PCB has higher dimensional stability than ordinary PCB insulation components. Therefore, when it is heated from 30 ° C to 140~150 ° C, its size change remains at 2.5~3.0%.

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Higher durability


When it comes to manufacturing, handling and everyday using, aluminum based products provide higher strength and durability than other metal materials.


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Flexible aluminum PCB


Today, most engineers use flexible aluminum PCBs. This is because it has one of the most advanced development achievements of insulating metal substrate. In addition, flexible aluminum PCB has first-class flexibility, electrical insulation and thermal conductivity. These PCBs have solid bending capability. However, you cannot use them for applications that always require frequent bending.

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Multilayer aluminum base


The multilayer Aluminum PCB is typical one in power supply applications with multiple layers of thermally conductive dielectrics. These materials are very useful when they are combined with one or more layer of circuitry in which thermally conductive dielectric is buried between the layers with the help of blind vias which also act as a signal or thermal vias. It's extremely helpful when provide an ideal solution for many applications concerning heat dissipation.

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Mixed aluminum PCB


By hot fusing the aluminum substrate to the processed non thermal material, you will obtain a hybrid aluminum PCB. Generally, you can use thermoelectric materials to fuse two or four layers of FR-4 board onto the aluminum board. Finally, the mixed PCB has a heat shield, ruggedness and heat dissipation agent.

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What is the production process of aluminum substrate?


The production process of aluminum PCB involves a thin dielectric layer as an electrical insulator. But this insulator is laminated between the metal substrate and the copper foil. Then, the copper foil is etched into a PCB pattern, and the metal base absorbs heat.


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