20 August. Thursday 2015. 2:00 PM.
Why Aluminum Backed PCB is Suitable for Different Applications

Why Aluminum Backed PCB is Suitable for Different Applications
Additionally, aluminum-backed Circuit board designs are very mechanically robust, making them well suited for usage in applications requiring a high mechanical stability level or are under significant mechanical stress. In addition, they are much less susceptible to the thermal expansion than buildings made of fiberglass.
What is Aluminum Backed PCB?
A PCB with an aluminum backing has a layout similar to every other PCB. Over it are one or more copper layers, solder mask, as well as silkscreen. However, an aluminum printed circuit board features a unique metal substrate rather than the fiberglass or the plastic one. Aluminum is the major component of this base.
This metal core may be composed primarily of metal and may include an aluminum and fiberglass composite. Although they could be double-sided, aluminum PCBs are mainly single sided. Manufacturing multilayer aluminum PCBs is quite challenging.
The majority of LED as well as power converter electronics utilize aluminum boards. Aluminum transfers heat away from the components as a result of the strong light that LEDs produce. The aluminum PCB increases the stability and longevity of the LED gadget. Aluminum substrates are used in domestic lighting, stop lights, and street lighting. They enable electronic regulation and current switching in power converters. Aluminum PCBs are used by designers in numerous other industries, however they are not used as frequently.
Additionally, designs of the aluminum backed PCB are very mechanically robust, making them well suited for usage in applications which need a high mechanical stability level or are under a lot of mechanical stress.
These layers below make up the distinctive layered system known as aluminum PCBs.
Circuit Layer
This indicates 1 to 5 ounces thickness of the printed circuit foil. Copper foil makes up the aluminum board’s circuit layer. You can utilize the copper foils in weights ranging from one to about 10 ounces.
The Dielectric Layer
There are numerous solutions for dielectric layer that provide electrical isolation having the least amount of heat resistance. Additionally, it serves to bind the base material as well as circuit layer together. Each particular dielectric possesses its UL recognition.
The many materials we offer in stock are listed below to give you a wide range of choices with speedy delivery.
Base Layer
Copper or aluminum can be used as the foundation layer. Although there are many different thickness options, 0.040″ (1.0mm) is the thickness that is most frequently utilized.

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