What is a Thick Copper PCB?
Thick copper PCBs (also known as heavy copper PCBs) use copper layers significantly thicker than standard PCBs (1–2oz), enabling higher current carrying capacity and improved heat dissipation. Thick copper PCBs are designed for high-current and high-power applications where thermal management and reliability are critical.
Advanced Thick Copper PCB Technologies
Special manufacturing techniques ensure performance and reliability in high-power designs.
- Hybrid Stack-up → Combine signal & power layers
- Copper Inlay / Embedded Copper → Enhanced heat transfer
- Thermal Vias → Efficient heat dissipation
- Heavy Copper Plating → Increased current capacity
Key Advantages of Thick Copper PCB
Thick copper PCBs are optimized for power handling, thermal management, and durability.
- High Current Carrying Capacity → Supports high-power circuits
- Excellent Heat Dissipation → Improves thermal management
- Enhanced Mechanical Strength → Stronger connectors & vias
- Improved Reliability → Reduced failure risk in harsh environments
- Compact High-Power Design → Enables smaller product size
Challenges in Thick Copper PCB Design
| Challenge | YSX Solution |
| Difficult etching of thick copper | Precision etching process control |
| Wide trace requirement | Optimized layout design support |
| Heat concentration | Thermal via & copper balancing |
| Mechanical stress | Reinforced structure design |
| High cost risk | DFM optimization & cost control |
Our Thick Copper PCB Capabilities
| Capability Category | YSX Capability |
|---|---|
| Layer Count | 1–20 layers |
| Copper Thickness | 2oz – 10oz+ |
| Board Thickness | 0.4mm – 6.0mm |
| Materials | FR4, High-TG, metal core |
| Min Trace / Space | 4/4 mil (depends on copper weight) |
| Min Hole Size | 0.15mm |
| Surface Finish | HASL, ENIG, OSP, Immersion Silver |
| Via Types | Through-hole, filled vias |
| Special Processes | Copper inlay, thermal vias |
| Production | Prototype to mass production |
Thick Copper PCB vs Standard PCB
| Feature | Standard PCB | Thick Copper PCB |
|---|---|---|
| Copper Thickness | 1–2 oz | ≥4 oz |
| Current Capacity | Low | High |
| Heat Dissipation | Moderate | Excellent |
| Mechanical Strength | Standard | High |
| Cost | Lower | Higher |
| Application | General electronics | Power electronics |
What Can We Do for Your Project
YSX delivers reliable heavy copper PCB solutions with strong engineering and manufacturing expertise.
Looking For a Reliable Thick Copper PCB Manufacturer?
Contact YSX today to receive a quick quote and expert engineering support, and unlock high-quality PCB manufacturing services.