Description

Aluminum PCB is a metal-based copper-clad board with good heat dissipation properties.The aluminum PCB can carry a higher current than traditional FR-4 within the same thickness and trace width.

1.Structure

Circuit Layer: It’s composed of copper foil. The weight of the copper foil usually ranges from 1 to 10 ounces. The copper foil is used to form the conductive lines of the circuit for carrying current and signal transmission.

Insulating Layer: Generally made of ceramic – polymer materials and so on. It has excellent heat resistance and visco – elasticity. This is a very important layer, which plays the role of electrical insulation, preventing the current in the circuit layer from leaking to the metal base layer. At the same time, it can also protect the circuit board from potential mechanical and thermal stresses.

Metal Base Layer: Composed of an aluminum alloy base, it provides support and a foundation for the circuit board. The presence of aluminum makes this kind of PCB very suitable for through – hole technology, facilitating the multi – layer connection and component installation of the circuit board.

2.Characteristics and Advantages

Good Heat – dissipation Performance: Aluminum is an excellent heat – conductive metal. It can quickly transfer the heat generated by the electronic components on the circuit board, thereby reducing the operating temperature of the components, improving the reliability and stability of the product, and prolonging the service life of the product. Compared with the traditional FR – 4 substrate, the aluminum substrate has obvious advantages in heat dissipation.

High Mechanical Strength: Aluminum alloy has high strength and hardness. Compared with PCB made of ceramic or glass – fiber substrates, aluminum – based PCB is more robust and durable, and can reduce accidental damage during manufacturing, handling, and daily use.

Light – weight and Portable: The density of aluminum is relatively small. While aluminum – based PCB has high mechanical strength, it is light – weight, which is convenient for product installation and carrying. It is especially suitable for electronic devices with weight requirements, such as portable electronic products and automotive electronics.

Good Insulation: Although aluminum is a metal, through reasonable structural design and the use of insulating materials, aluminum – based PCB can achieve good electrical insulation performance to ensure the normal operation of the circuit.

Good Processability: Aluminum – based PCB can be manufactured using conventional PCB processing technologies, such as etching, drilling, soldering, etc., facilitating the realization of complex circuit designs and manufacturing.

Environment – friendly and Recyclable: Aluminum is a non – toxic and recyclable material, which meets environmental requirements. The use of aluminum – based PCB helps to reduce the environmental pollution caused by electronic waste.

3.Application Areas

Lighting Field: Such as LED lights, energy – saving lamps and other lighting products. Because LED emits a lot of heat when it lights up, good heat – dissipation performance is required. Aluminum – based PCB can effectively dissipate the heat and ensure the stability and lifespan of lighting products.

Power Supply Field: Including switching power supplies, adapters, chargers, etc. These devices generate a lot of heat during operation. The heat – dissipation characteristics of aluminum – based PCB can improve the efficiency and reliability of the power supply.

Automotive Electronics Field: The electronic control units, engine control systems, audio systems, etc. in automobiles all need to use PCB. The high – temperature resistance, vibration resistance and good heat – dissipation performance of aluminum – based PCB make it very suitable for the application environment of automotive electronics.

Communication Electronics Field: For example, high – frequency amplifiers, filters, transmitting circuits and other communication equipment have high requirements for the heat – dissipation performance and signal – transmission performance of PCB. Aluminum – based PCB can meet these requirements.

Computer Field: Such as CPU boards, hard – disk drives, power – supply equipment and other computer hardware require efficient heat dissipation to ensure their normal operation. Aluminum – based PCB can provide a good heat – dissipation solution for these devices.