LED Electronics Aluminum Printed Circuit Boards With ENEPIG Surface Finish

shenzhen processing aluminium PCB led enepig circuit boards PCB manufacturer

What is Aluminum PCB?

Aluminum boards get the most use in LED and power converting electronics. The intense light produced by LEDs creates high levels of heat, which aluminum directs away from components. An aluminum PCB extends the lifespan of an LED device and provides more stability. You can find aluminum substrates in street lights, stop lights and household lighting. They allow power converters to change currents and regulate electronics. Creators in many other industries also find use in aluminum circuit boards, but they don't implement them as often.

This base mainly contains a combination of aluminum.

The metal core can consist entirely of metal or have a combination of fiberglass and aluminum.

Aluminum PCBs typically are single sided, but can be double sided as well.

Advantages and Disadvantages of Aluminum PCB
Aluminum boards are one of the most thermally conductive PCB options. They keep as much heat away from vital components as possible to ensure minimal circuit damage. Thanks to their high heat tolerance, they can handle higher density circuits and larger power levels. Substrates created from aluminum alloys have a high level of physical durability that lowers the risk of breakage. Compared to other metals, aluminum has a lower environmental impact in addition to a reasonable cost.
On the other hand, aluminum PCBs tend to have more niche uses than standard boards. While they cost less than adding conductors to a copper board, they have a higher price than standard PCBs without those components. Investing in an aluminum core may not pay off if your application doesn’t involve high temperatures. If you plan on creating a flex circuit, an aluminum flex PCB can only flex into its initial position. It will bend to fit into smaller electronics, but it won’t withstand the stress of vibration.

Performance of Aluminum PCB

1. Thermal Dissipation

Common PCB substrates, such as FR4, CEM3 are poor conductors of thermal.

If the heat of electronic equipments cannot be distributed in time, it will result in high temperature failure of electronic components.

Aluminum substrates can solve this thermal dissipation problem.

2. Thermal Expansion

Aluminum substrate PCB can effectively solve the thermal dissipation problem, so that the thermal expansion and contraction problem of components on printed circuit boards with different substances can be alleviated, which improves the durability and reliability of whole machine and electronic equipments.

In particular, aluminum substrate can solve the SMT (surface mount technology) thermal expansion and contraction problems.

3. Dimensional Stability

Aluminum substrate printed circuit board has apparently higher stability than the insulating material of the printed circuit board.

When heated from 30 ° C to 140 ~ 150 ° C, the dimensional change of aluminum substrate is only 2.5 ~ 3.0%.

4. Other Performance

Aluminum substrate printed circuit board has shielding effect, and can alternative brittle ceramic substrate.

Aluminum substrate also helps to improve the heat resistance and physical properties and reduce production costs and labor.

WHAT IS AN ALUMINUM PCB?

A PCB generally consists of three layers. A conductive copper layer at the top, a dielectric layer in between, and a layer of a substrate at the bottom. Standard PCBs have a substrate layer made of fiberglass, ceramic, polymers, or any other non-metal core. An ample amount of PCBs uses FR-4 as the substrate.

Aluminum PCBs use an Aluminum substrate. Instead of standard FR-4 as the substrate material.

Circuit Copper Layer

This layer transmits signals over the entire PCB board.

The movement of charged particles generates heat.

This heat is transferred to the Aluminum substrate. Which dissipates it efficiently.

Insulating Layer

This layer is also known as the dielectric layer.

It is made of materials that are poor conductors of electricity.

It absorbs the heat generated in the above layer. And transfer it to the Aluminum substrate below it.

Substrate

The substrate acts as a foundation for the PCB.

It firmly holds the components above it. By changing the characteristics of the substrate, the performance of PCB varies.

For example, a rigid substrate provides strength and durability to the PCB board.

While a flexible substrate opens up more design options.

The aluminum substrate is used in power electronics-based applications where high thermal dissipation is required.

Due to its good thermal conductivity, it keeps heat away from vital electronic components. Thus ensuring minimal circuit damage.

ALUMINUM PCBs MANUFACTURED AT YScircuit

YScircuit is one of the finest manufacturers of Aluminum PCBs.

To increase the overall performance of the product, they provide a thermal clad layer to the Aluminum PCB.

It dissipates heat in a highly efficient manner. For high power and tight tolerance based applications Aluminum Backed PCB is the perfect choice among project makers.

Considering parameters like the coefficient of thermal expansion, thermal conductivity, strength, hardness, weight, and cost. Aluminum plate is an ideal choice for your project. You can modify your PCB substrate. PCBWay offers different Aluminum plates like 6061, 5052, 1060, and many more.

ADVANTAGES OF ALUMINUM PCB

1. The heat dissipation capacity of Aluminum PCBs is far better than standard PCBs.

2. Aluminum PCBs provide more strength and durability. As compared to ceramic and fiberglass-based PCBs.

3. It seems ironic, but aluminum-based PCBs are lighter. As compared to standard PCBs.

4. Thermal expansion and contraction of PCB components get reduce by using Aluminum PCB.

5. PCBs made of Aluminum are environmentally friendly. It is non-toxic and recyclable. It does not create any harmful impacts on our planet.

6. The assembling process of Aluminum PCB is easy than that of standard PCB.

APPLICATIONS

1. They are used in Power supply devices like switching regulators, DC/AC converter, SW regulator.

2. In power modules, they are used in inverters, solid-state relays, and rectifier bridges.

3. In automobiles, they are used in an electronic regulator, ignition, power supply controller, etc.

4. They are the perfect choice for amplifiers. Balanced amplifier, audio amplifier, power amplifier, operational amplifier, high-frequency amplifier.

5. They are used in the transmitting and filtering circuit.

6. They are used to make the CPU board. And power supply of computers.

7. Electric motors require a high current for their operation. In industries, motor driver circuits use Aluminum PCB.

8. These are a popular choice for LED applications due to their energy-saving capability.

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