Aluminum copper substrate is a printed circuit board that combines the advantages of aluminum and copper. It is widely used in high-power electronic devices and LED lighting systems.
Aluminum Copper Based PCB Product Introduction
1.Product Overview
Aluminum copper substrate is a printed circuit board that combines the advantages of aluminum and copper. It is widely used in high-power electronic devices and LED lighting systems. Aluminum substrate provides good mechanical strength and lightweight characteristics, while copper substrate provides excellent thermal and electrical conductivity. The design of this composite material makes it excel in heat dissipation and electrical performance, suitable for high-performance applications.
2.Main Features
Excellent heat dissipation performance:
Copper has high thermal conductivity and can quickly conduct heat away from the heating element. Aluminum also has good heat dissipation performance. The combination of the two can effectively reduce the operating temperature and extend the life of the equipment.
Good electrical performance:
The copper layer provides excellent conductivity and can carry high current to ensure the stability and reliability of the circuit.
Lightweight design:
Aluminum substrate is lighter than traditional PCB materials and is suitable for applications that need to reduce weight.
High mechanical strength:
Aluminum substrate has good mechanical strength and can withstand certain external forces, suitable for various environments.
Corrosion resistance:
The combination of aluminum and copper makes the substrate have good corrosion resistance in a variety of environments and is suitable for use in harsh conditions.
3.Technical Parameters
| Number of layers | 2L | Line width/line spacing | 10/10mm |
| Material | CH-CU-LM | Minimum aperture | 0.35mm |
| Board thickness | 2.0mm | Surface treatment | immersion gold |
4.Structure
Aluminum-copper substrates are usually composed of the following parts:
Copper layer: As the main material for thermal and electrical conductivity, the thickness is usually 1 oz to 3 oz.
Aluminum layer: Provides mechanical support and heat dissipation performance, and the thickness is usually between 0.5 mm and 3 mm.
Insulation layer: Used to isolate the copper layer from the aluminum layer to prevent short circuits and electrical interference.
5.Application areas
LED lighting: Such as LED bulbs, downlights, spotlights, etc.
Power modules: Used for high-power power converters and drivers.
Automotive electronics: Such as automotive lamps, sensors, etc.
Industrial equipment: Used for various high-power electronic devices and motor drives.
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6.Conclusion
Aluminum copper substrates have become an indispensable component in high-power electronic devices and LED lighting systems due to their excellent heat dissipation performance, good electrical performance and mechanical strength. With the continuous development of electronic technology and the increase in market demand, the application of aluminum copper substrates will continue to expand, providing more efficient and reliable solutions for various industries.
FAQ
Q: Higher flexibility of aluminum copper substrates.
A: Due to the two sides, double-sided PCBs can accommodate more circuit components in the same board size. This makes it very suitable for circuit designs that require high integration.
Q: Higher reliability of aluminum copper substrates.
A: By passing the circuit through holes between the two sides, the circuit can be connected on both sides, which greatly improves the density and reliability of the circuit board.
Q: More complex design of aluminum copper substrates.
A: Compared with single-sided PCBs, double-sided PCBs can achieve more complex circuit designs. Double-sided wiring makes the circuit design more flexible, and can also improve the performance and stability of the circuit board.
Q: Aluminum copper substrate wiring is more concise and compact.
A: Double-sided PCBs have more conductive layers, which can complete more complex circuit designs in a smaller area. This wiring is more concise and compact, which not only makes the circuit board more beautiful, but also effectively reduces the noise and fluctuation of the circuit board.
Q: The aluminum-copper substrate is smaller in size.
A: Double-sided PCB boards are smaller in size with the same function, which can provide more space for the design of electronic products.
Q: The performance of aluminum-copper substrates is more stable.
A: Double-sided PCB boards have more stable performance because their double-layer structure of conductive layer and ground layer can effectively reduce the impedance mismatch and signal interference of the circuit board.
Q: High-density wiring and small hole trend of aluminum-copper substrates.
A: With the development of technology, the prevalence of multi-pin parts and surface-mounted components has made the shape of circuit board circuit patterns more complex, conductor lines and apertures smaller, and towards high-layer boards (10~15 layers).
Q: Aluminum-copper substrates meet the needs of small and lightweight.
A: Thin multilayer boards with a thickness of 0.4~0.6mm are gradually becoming popular, and the guide holes and shapes of parts are completed by punching processing.
Q: What are the characteristics of mixed material lamination of aluminum-copper substrates?
A: For example, military high-frequency multilayer boards use PTFE as the base material and are made by mixed lamination of ceramic + FR-4 boards. They have the characteristics of blind buried holes and silver paste filling holes.
