aluminum based copper clad PCB for efficient heat dissipation

Aluminum-based Copper Clad Printed Circuit Board (Aluminum PCB)

Aluminum-based copper clad printed circuit board (commonly referred to as aluminum PCB) is a type of copper clad board that uses metal aluminum as the base material. An insulating layer is laid on the aluminum base, then a layer of copper foil is applied on top of the insulating layer, and circuit patterns are formed by etching. Aluminum PCBs feature excellent heat dissipation, electrical insulation, and mechanical processing properties. They are widely used in products that require good heat dissipation and high reliability, such as LED lighting, power devices, and high-power electronic components. The typical structure consists of three parts: the aluminum base, insulating layer, and copper foil layer.

Main Structure of Aluminum-based PCB

1. Aluminum Base: Made from high purity aluminum plate, providing excellent thermal conductivity and mechanical support.
2. Insulating Layer: Made from high-performance insulating material to ensure electrical insulation and heat resistance.
3. Copper Foil: The surface is covered with high-purity electrolytic copper foil, which facilitates subsequent etching to form circuit patterns.

Main Features of Metal Core PCB

1. Excellent heat dissipation, effectively reducing the temperature of electronic components.
2. Good electrical insulation and electromagnetic shielding properties.
3. High mechanical strength, easy for punching, drilling, and other processing.
4. Suitable for surface mount technology, no need for extra heat sinks, helping to reduce product size.
5. Good dimensional stability, compact structure, and suitable for high integration designs.
6. Optional eco-friendly materials, compliant with RoHS and other standards.

Main Applications of Aluminum Clad PCB

1. Power hybrid ICs (HIC).
2. Audio equipment: input/output amplifiers, balance amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
3. Communication electronic equipment: high-frequency amplifiers, filter circuits, transmitter circuits.
4. Power equipment: switching regulators, DC converters, SW regulators, etc.
5. Office automation equipment: electric machinery, drivers, etc.
6. Computer equipment: CPU boards, floppy disk drives, power supplies, etc.
7. Power modules: converters, solid state relays, power supplies, etc.
8. LED lighting: high-power LED lamps, LED walls, LED street lights, etc.

Common Specifications

• Aluminum base thickness: 1.0mm, 1.2mm, 1.6mm, 2.0mm, 4.0mm.
• Copper thickness: 35μm, 70μm, 105μm.
• Board size: 500×1200mm, 600×1200mm, 1000×1200mm.
• Surface finish: rosin, hot air solder leveling (HASL).