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High-Quality Aluminum PCB Fabrication

We specialize in high-quality aluminum PCB manufacturing and turnkey assembly for various industrial.

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High-Quality Aluminum PCB Fabrication

What is Aluminum PCB?

Aluminum PCB is a cost-effective heat dissipation circuit board constructed with high-purity aluminum (≥99.6%) as the thermal substrate, combined with low thermal resistance insulating media (thermal silicone gel, aluminum oxide ceramics, or modified epoxy resin) and conductive copper foil. Through an integrated design featuring rapid heat conduction via the aluminum core layer and electrical isolation via the insulating layer, it effectively addresses heat dissipation challenges for medium-power devices. It serves as the mainstream thermal substrate in fields such as LED lighting, power electronics, and automotive electronics.

AIVON Aluminum PCB Classficiations

Aluminum-based Copper Clad Laminate GM-AL Series
  • MLT-002: Aluminum base, copper foil, FR4 glass cloth (Tg 130-170)

    MLT-003: Aluminum base, copper foil, Laird non-woven fiber (Thermal conductivity 3.0 W/(m·K))

    MLT-004: Aluminum base, copper foil, non-woven fiber (Bergquist), thermal conductivity 20 W/(m·K)

    MLT-005: Aluminum base, copper foil, non-woven fiber, heat resistance 350°C for 10 min, dielectric constant 4.2

    MLT-006: Aluminum base, copper foil, no glass fiber (Bergquist), thermal conductivity 2.0 W/(m·K).

Special Copper-Clad Laminate GM-CU Series
  • MLT-007: Thick copper foil (40z-100z) laminate, high current. High-power circuits.

Properties of Aluminum PCB

Test Item Unit Test Condition (A) Typical Value MAF-01 Typical Value MAF-02 Typical Value MAF-03
Peel Strength N/mm After thermal stress (288°C, 2min) 1.1 1.05 1.05
Blister Test after Thermal Shock S ≥120 120 120 120
Surface Resistivity 106 106 106
Surface Resistivity C-96/35/90 105 105 105
Volume Resistivity MΩ·m As received 106 106 106
Volume Resistivity MΩ·m C-96/35/90 105 105 105
Thermal Resistance) °C/W As received =1.0 =0.8 =0.8
Dielectric Constant (1 MHz) - As received 3.8 3.9 2.7
Dissipation Factor (1 MHz) - As received V 0.026 0.009
Thermal Stress Resistance min 280°C/ After 2mins test, no delamination or blistering After 2mins test, no delamination or blistering After 2mins test, no delamination or blistering
Thermal Conductivity W/m·K As received 1.0–1.2 1.5–1.8 2.0–3.0
Dielectric Breakdown Voltage KV D-48/50 + D/0.5/23 2.0–2.5kv 4kv 5kv
Flammability - As received FV-0 FV-0 FV-0
CTI (Comparative Tracking Index) V As received 250–600 250–600 250–600

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Advantages of AIVON'S Aluminum PCB

Outstanding Heat Dissipation
Outstanding Heat Dissipation

Aluminum alloy substrate rapidly conducts heat, effectively dissipating electronic component temperatures to prevent overheating damage.

Exceptional Stability
Exceptional Stability

Reduces heat buildup, delays component aging, extends circuit lifespan, and lowers failure rates.

High Mechanical Strength
High Mechanical Strength

Aluminum substrate provides superior durability and resistance to mechanical stress compared with standard FR4 boards.

Lightweight Design
Lightweight Design

Aluminum offers low weight and high strength, ideal for compact installations that save space.

Cost Optimization
Cost Optimization

Simplifies additional cooling designs, reducing production and assembly costs.

Enhanced Electrical Insulation
Enhanced Electrical Insulation

The dielectric layer ensures strong insulation between the circuit and the metal base, improving overall circuit safety.

Applications of Aluminum PCB

Structural Features of Aluminum PCB

Aluminum PCBs feature a unique multi-layer structure designed to achieve excellent heat dissipation, mechanical stability, and electrical performance. They are mainly composed of three layers: the copper foil circuit layer, the thermally conductive dielectric layer, and the aluminum base layer.


The circuit layer serves the same function as that on a conventional PCB. It is made of high-quality copper foil with a thickness typically ranging from 1 oz to 10 oz, ensuring reliable conductivity and superior current-carrying capability.


The dielectric layer is a thermally conductive insulation material with low thermal resistance, which plays a key role in transferring heat from electronic components to the base. It is usually made from a polymer filled with special ceramics, offering excellent viscoelasticity, strong resistance to thermal aging, and the ability to withstand high thermal stress.


The base layer consists of aluminum, providing a solid mechanical foundation and exceptional heat dissipation performance. This structure allows components to maintain stable operation under high-power or high-temperature conditions, significantly improving product reliability and extending service life.

Aluminum PCBs FAQs

Q1: Why are aluminum PCBs white?
  • A1: Aluminum PCBs are often white because the solder mask or surface finish applied to the board is white. The white layer helps reflect heat away from components, improves light reflection in LED applications, and provides a clean surface for printing and assembly. This color does not affect the board’s performance but enhances its thermal management and aesthetic appeal, especially in LED lighting applications.
Q2: How to choose aluminum core PCB?
  • A2: When selecting an aluminum core PCB, consider the copper thickness, dielectric thermal conductivity, board size, and application requirements. Thicker copper ensures better current capacity, while high-performance dielectric layers provide low thermal resistance and efficient heat transfer. Additionally, check the aluminum base quality and compatibility with your components to ensure durability and stable performance for high-power or heat-sensitive applications.
Q3: Why choose AIVON as an aluminum PCB manufacturer?
  • A3: With years of experience in LED lighting, power supply, and electronics industries, AIVON ensures reliable thermal management, strict quality control, and fast production turnaround. Choosing AIVON means getting trusted performance, extended component lifespan, and professional support for all your aluminum PCB projects.

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