Layers: 2 layers PCB
Base material: Aluminum
Thickness: 1.6 mm
Copper thickness: 2oz Cu
Size: 12.70×12.44mm
24 pcs/PNL/80.26 x 105.15mm
Finish: Immersion Gold
Soldermask: Green
What is 2 Layer Aluminum PCB ?
A 2-layer aluminum PCB (Printed Circuit Board) refers to a type of PCB that is constructed with two conductive layers separated by an insulating material, and the conductive layers are made of aluminum instead of the more commonly used copper.
Here are some key points about 2-layer aluminum PCBs:
- Materials: The conductive layers are made of aluminum instead of copper. The insulating material between the layers can be various dielectric materials like FR-4 (a glass-reinforced epoxy laminate), polyimide, or ceramic-filled composites.
- Construction: The two aluminum layers are laminated onto both sides of the insulating core material, creating a sandwich-like structure.
- Advantages of aluminum:
- Aluminum is lighter than copper, making the PCB more suitable for weight-sensitive applications like aerospace or portable electronics.
- Aluminum has better thermal conductivity than copper, which can be beneficial for heat dissipation in high-power applications.
- Aluminum is generally less expensive than copper.
- Disadvantages of aluminum:
- Aluminum is more prone to oxidation and corrosion compared to copper, requiring additional surface treatments or coatings for protection.
- Aluminum has higher electrical resistivity than copper, which can lead to higher signal losses and power dissipation, especially at high frequencies.
- Aluminum is softer than copper, making it more susceptible to scratches and deformation during manufacturing and handling.
- Applications: 2-layer aluminum PCBs are commonly used in industries where weight reduction is critical, such as aerospace, defense, and certain consumer electronics. They are also used in applications where efficient heat dissipation is important, like power electronics or LED lighting.
While 2-layer aluminum PCBs offer some advantages, they may require additional manufacturing processes and precautions compared to conventional copper PCBs. The choice between aluminum and copper PCBs depends on the specific requirements of the application, such as weight, thermal management, cost, and electrical performance considerations.
