Aluminum base board is a unique type of metal-based copper-clad laminate whose core feature is the use of an aluminum plate as the thermal conduction layer. Thanks to its excellent heat dissipation performance, it plays a crucial role in electronic devices that require efficient thermal management.
Unlike traditional fiberglass epoxy resin substrates, aluminum substrates can rapidly conduct and dissipate the heat generated by electronic components during operation, thereby ensuring the stability and service life of electronic products.
Aluminum base board type
According to the type of insulation layer and performance requirements, aluminum base board can be classified into several common types:
General-purpose aluminum substrate
The insulation layer is made of an epoxy glass fabric polymer, providing basic thermal conductivity and electrical insulation. It is relatively low in cost and is widely used in products such as standard LED lighting.
High thermal conductivity aluminum substrate
The insulation layer is filled with high-thermal-conductivity ceramic powders (such as aluminum oxide and boron nitride), significantly improving thermal conductivity. It is suitable for applications with strict heat dissipation requirements, including high-power LEDs, automotive electronics, and high-power power supplies.
High-frequency aluminum substrate
The insulation layer uses special resins (such as polytetrafluoroethylene, PTFE), which not only provide thermal conductivity but also feature low dielectric constant and low dissipation factor. It is suitable for high-frequency applications such as communication equipment and microwave circuits
Aluminum base board has the following main features:
Feature
Excellent thermal conductivity
Aluminum substrates have outstanding thermal conductivity, enabling rapid heat dissipation and reducing device temperature. They are particularly suitable for high-power electronic devices.
Electromagnetic shielding properties
Aluminum substrates can effectively shield electromagnetic interference and enhance the stability of electronic devices.
Mechanical strength
Aluminum substrates possess high mechanical strength and are suitable for applications that require enhanced structural durability.
Good processability
Aluminum substrates can be easily processed into various shapes, making them suitable for complex design requirements.
Corrosion resistance
Aluminum substrates have good resistance to most chemical substances.
Environmental protection
Aluminum substrates comply with RoHS requirements and are suitable for applications with strict environmental protection standards.
Structure
Basic Structure of an Aluminum Substrate
Circuit layer
Usually made of electrolytic copper foil, which is etched to form printed circuits for the assembly and interconnection of components.
Insulating layer
Located between the circuit layer and the metal base layer, it provides bonding, electrical insulation, and thermal conduction. The higher the thermal conductivity of the insulating layer, the more effectively heat can be dissipated during device operation, thereby reducing operating temperature, increasing power handling capacity, and extending service life.
Metal base
Usually made of aluminum-clad PCB material, it offers excellent thermal conductivity and effectively transfers heat away from circuit components.
Application
The application fields of aluminum substrates are very extensive and mainly include the following areas:
Lighting industry:
Aluminum substrates are widely used in the manufacturing of LED lamps. Due to their high thermal conductivity, aluminum substrates can quickly transfer heat from the LED chips to the heat sink, thereby improving the stability and reliability of LED lamps.
Power electronics:
Aluminum substrates are often used as heat sinks and heat spreaders. Their excellent thermal conductivity effectively dissipates the heat generated by equipment, ensuring stable operation.
5G communication base stations:
In the construction of 5G communication base stations, aluminum substrates are widely used as carriers for components such as antennas and filters, providing excellent electrical performance and mechanical strength.
Aerospace:
Aluminum-based boards are also used in the aerospace field. Due to their lightweight and high-strength characteristics, they are applied in the manufacturing of aircraft components and structural materials.
Automotive industry:
Aluminum-based plates are mainly used in the production of vehicle body structures and engine components. With the growing trend toward lightweight vehicles, the use of aluminum-based plates is continuously increasing.
Other fields:
Aluminum substrates are also applied in consumer electronics, medical devices, and other industries. For example, high-precision aluminum alloy products have been successfully applied in the new energy vehicle sector and can be expanded into the consumer electronics industry.
Company products
Our aluminum-clad PCB products mainly include double-sided aluminum base PCBs, LED floodlight PCBs, and LED street lighting PCBs
Customized product
Most of our products are customized based on the original Gerber files provided by our customers.
After receiving the original Gerber files, we convert them into working Gerber files for production use.
During this conversion process, we adjust certain parameters-such as hole diameter, trace width, and trace spacing-to optimize manufacturability and ensure smooth production.
Package and warranty
All our products are vacuum-packaged with desiccant to ensure optimal protection during storage and transportation.
The shelf life of vacuum-packaged circuit boards varies depending on the surface treatment process, typically ranging from 3 to 12 months. The details are as follows:
Shelf Life for Different Surface Treatment Processes
ENIG (Electroless Nickel Immersion Gold)
Can be stored for up to 12 months under vacuum packaging with desiccant protection.
Lead-Free HASL (Hot Air Solder Leveling)
When no special storage adjustments are made, the shelf life is typically about 3 months.
OSP (Organic Solderability Preservative)
Has a shelf life of 3–6 months under vacuum packaging with desiccant protection. However, if stored improperly (e.g., without desiccant or with insufficient vacuum sealing), the shelf life may shorten to around 3 months.
Immersion Gold (Chemical Gold Plating)
Shelf life can reach 6–12 months, provided that sealed packaging and desiccant are used.
Company advantage
1. We guarantee a response within 24 hours to all customer inquiries and complaints.
2. Our factory offers 1-day sample production for 2-layer boards and provides rapid manufacturing services for small and medium orders, ensuring short lead times and on-time delivery.
3. We support multiple payment options, including EUR, USD, RUB, and CNY, through PayPal, T/T, and other convenient methods.
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