What is a Metal Core PCB?
“A Metal Core PCB incorporates a metal base—typically aluminum or copper—coupled with high-temperature resistant insulating layers. This construction not only improves thermal conductivity but also enhances mechanical strength and durability. Normally, we called it Aluminum PCB, or Copper PCB.”
In today’s high-power electronics, effective thermal management is crucial. MultPCB’s Metal Core PCBs are engineered to provide superior heat dissipation, ensuring that your high-power devices perform reliably even under extreme conditions.
Standard Metal core PCB Stack-up Structure
Below you can see the stack-up structure of :
- Single-sided Aluminum PCB
- Single-sided Double Layer Aluminum PCB
- Double-sided Aluminum PCB
- Multilayer Aluminum PCB
Pay special attention to the Single-sided Double Layer Aluminum PCB stack-up structure, the two copper layers are designed on one side.
Standard Single-sided Aluminum PCB Stack-up Structure
Standard Single-sided Double Layer Aluminum PCB Stack-up Structure
Standard Double-sided Aluminum PCB Structure
Standard Multilayer Aluminum PCB Structure
Advantages and Disadvantages of Metal Core PCB
Advantages:
• Efficient Thermal Management
• Structural Integrity makes Durability
• Lightweight Design
• Environmental Sustainability
• Cost-Effectiveness
Disadvantages:
• Design Constraints
• Manufacturing Complexity
• Moisture Sensitivity
• thermal expansion coefficient mismatch
• Limited Supplier Availability
• Limited applications in advanced electronics
Aluminum PCB Capabilities at MultPCB
At MultPCB, our aluminum-based PCBs—often referred to as metal-core PCBs—are engineered for high-power and heat-sensitive applications. We leverage advanced manufacturing techniques and state-of-the-art equipment to deliver products that meet the most demanding thermal and mechanical requirements. Here’s what sets our aluminum PCBs apart:
| Feature | Details |
| Base Material | Aluminum Core |
| Layer Count | 1-4 Layer |
| Board Thickness | 0.8mm – 3.2mm |
| Copper Thickness | 1oz – 3oz |
| Surface Finishes | HASL, ENIG, Immersion Silver, OSP |
| Min. Line Width/Spacing | 4mil/4mil |
| Min. Drill Hole Size | 0.2mm |
| Solder Mask Colors | White, Black |
| Testing Methods | AOI, E-test, Flying probe test |
| Lead Time | Fast turnaround 1-5days, Standard 5–7 days, volume order 8-15 days depend on quantity |
| Component Mounting | Surface Mount Technology (SMT) and Through-Hole Technology (THT) |
Applications of Aluminum PCB
Aluminum PCBs are widely used in various applications due to their excellent thermal conductivity, mechanical strength, and lightweight properties. Here are some common applications:
- LED Lighting (house lights, hotel lights, traffic lights, outdoor light)
- Automotive Devices (car lights, voltage regulators)
- Communication Electronics
- Industrial Power Equipment
- Audio Equipment
Why order Aluminum PCB from MultPCB?
Experience: Over 18 years in PCB manufacturing.
Advanced Technology: State-of-the-art equipment for high precision and consistency.
Customization: Flexible manufacturing options to meet unique client requirements.
Quality Assurance: Comprehensive testing, including AOI, E-test, and functional testing.
Global Reach: Efficient shipping and support to customers worldwide.
- Quick-turn Production: 1-3days for sample, 7-15 days for volume order.