Aluminum PCB
Custom PCB Manufacturer for LED Lighting & Industrial ApplicationsHigh Thermal Dissipation. Uncompromised Reliability. Engineered for high-power LEDs, automotive electronics, and demanding power conversion applications.Get A Quote
Advanced Aluminum PCB Classifications
We manufacture four distinct types of aluminum-backed PCBs to match your specific thermal, layering, and spatial layout requirements.
Single-Sided Aluminum PCB
Cost-Effective Thermal Solution: The most budget-friendly MCPCB for mass LED lighting production. Short Lead Time: Simplified single-layer processing ensures rapid manufacturing and delivery.
Double-Sided & Multi-Layer
High-Density Routing: Supports complex IC placement and dual-sided SMT assembly with an aluminum core. Reliable Layer Interconnection: Advanced PTH (Plated Through Hole) insulation technology prevents voltage breakdown.
Direct Thermal Path (DTP)
Zero Thermal Resistance: Direct solder-to-aluminum pad bonding eliminates the dielectric layer barrier. Ultra-High Conductivity: Achieves a local thermal conductivity of 130 - 200 W/m·K for extreme power.
Why LED Companies Choose LEADHUI?
Helping lighting companies reduce heat problems and improve product reliability since 2008
- Aluminum PCB up to 1800mm length
- High thermal conductivity solutions
- prototype to mass production
- Enginering support before production
What Is an Aluminum PCB?
An aluminum PCB is a type of metal core printed circuit board. Instead of a conventional FR-4 base, it uses an aluminum base plate beneath an electrically insulating dielectric layer and copper circuitry.
This structure helps move heat away from heat-generating components and distribute it across the aluminum base. Compared with standard FR-4 boards, aluminum PCBs can provide stronger thermal performance for applications where LEDs, power devices, and other components create concentrated heat.
A typical aluminum PCB construction includes:
- Copper circuit layer
- Thermally conductive dielectric layer
- Aluminum base layer
Aluminum PCB Manufacturing Process
1. Design and Engineering Review
We review Gerber files, board outline, copper thickness, surface finish, thermal requirements, assembly requirements, and special mechanical features before production.
2. Material Preparation
The aluminum base material, dielectric layer, and copper foil are prepared according to the approved board construction.
3. Circuit Imaging and Etching
Copper foil is imaged and etched to form the required pads, traces, thermal areas, and electrical connections.
4. Drilling and Board Profiling
Mounting holes, vias where applicable, slots, cutouts, and custom board outlines are produced according to the approved fabrication files.
5. Solder Mask, Silkscreen, and Surface Finish
Solder mask is applied to protect the copper circuitry. Silkscreen markings and the requested surface finish are added to support reliable assembly.
6. Inspection and Testing
Finished boards receive visual inspection and applicable electrical checks before packing. Functional testing can be arranged for assembled products according to customer requirements.
Why Choose Aluminum PCB?
Better Heat Dissipation
The aluminum base helps transfer heat away from LEDs, MOSFETs, power ICs, and other heat-generating components. This can support improved product stability and longer operating life when thermal design is properly managed.
Reduced Need for External Heat Sinks
For some lighting and power applications, an aluminum PCB can act as part of the thermal-management structure, reducing the need for separate heat-sink components or simplifying mechanical assembly.
Strong Mechanical Support
Aluminum-core boards provide good rigidity and dimensional stability, making them suitable for lighting modules, long boards, high-power devices, and products exposed to vibration or repeated handling.
Suitable for Cost-Conscious Thermal Designs
Aluminum PCBs are commonly used where better thermal performance is needed but ceramic or more specialized materials would be unnecessarily expensive.
Technical Capabilities
From rapid prototyping to high-volume mass production, LEADHUI supports a wide range of custom specifications to match your exact project needs:
| Capability Item | Specification |
|---|---|
| PCB Type | Single-Sided Aluminum PCB, Double-Sided Aluminum PCB, LED Aluminum PCB, Custom Aluminum PCB |
| Base Material | Aluminum base, metal core substrate, high thermal conductivity materials |
| Thermal Conductivity | 1.0 W/m.K, 1.5 W/m.K, 2.0 W/m.K, 3.0 W/m.K or custom options |
| Board Thickness | 0.15 mm - 3 mm |
| Copper Thickness | 1 oz - 4 oz or higher upon project review |
| Surface Finish | HASL, Lead-Free HASL, ENIG, OSP |
| Solder Mask | White, Black, Green, Blue, Red and other colors |
| Silkscreen | White, Black and other colors available upon review |
| Profile Processing | CNC Routing, V-Cut, Tab Routing, Custom Shape, Mounting Holes, Slots |
| Testing | Open / Short Test, Electrical Test, Final Inspection |
Aluminum PCB FAQ
What is the difference between an aluminum PCB and an FR-4 PCB?
An aluminum PCB uses a metal base and thermally conductive dielectric layer to improve heat transfer. FR-4 is a glass-reinforced epoxy material used for standard rigid PCBs. Aluminum PCB is often preferred for LED and power applications with higher heat-generation requirements.
Are aluminum PCBs only used for LED lighting?
No. Although they are common in LED lighting, aluminum PCBs are also used in power supplies, chargers, motor controllers, automotive lighting, power modules, and other electronics requiring thermal management.
Can you assemble components on aluminum PCBs?
Yes. LEADHUI PCB supports aluminum PCB assembly, including SMT, through-hole components, LED modules, connectors, wire assembly, and functional testing based on project requirements.
Can aluminum PCBs be customized in long-strip shapes?
Yes. Aluminum PCB strips and bars can be manufactured in custom lengths and widths with mounting holes, cutouts, connectors, scoring, and panelization according to your design.
Can you provide white solder mask for LED PCBs?
Yes. White solder mask is commonly requested for LED lighting boards because it can improve light reflectivity. Other solder mask colors are also available based on project requirements.