Heavy Copper PCB Design: Push Power Density to the Limit.
End the cycle of thermal throttling and current limitations in your power electronics.
Why Choose Heavy Copper PCB Design?
Heavy copper PCB design isn’t just about handling more current—it’s about building resilience into your power electronics. It transforms thermal challenges into competitive advantages, creating products that withstand extreme conditions while maintaining peak performance.
Exceptional Current Carrying Capacity
Support high-power applications with copper weights from 4 oz to 20+ oz, eliminating the need for external bus bars and complex wiring.
Superior Thermal Performance
Dissipate heat more efficiently through thick copper planes, reducing hot spots and extending component lifespan in demanding environments.
Enhanced Mechanical Strength
Withstand repeated thermal cycling and mechanical stress with robust plated through-holes and strengthened board structure.
Our Heavy Copper PCB Design Capabilities
We design heavy copper PCBs that balance power integrity with manufacturability. From mixed copper designs to extreme copper weights, we help you optimize thermal management and electrical performance without compromising reliability.
3 oz to 20+ oz Copper Weights
Mixed Copper Designs (standard and heavy copper on the same board)
Thermal Relief and Heat Sink Integration
High-Current Via Arrays and Plated Through-Holes
DFM for Heavy Copper Fabrication
Thermal Simulation and Analysis
Supporting Subheading
A Transparent Process from Concept to Production
We navigate the unique challenges of heavy copper design through a methodical process that anticipates thermal expansion, plating complexities, and manufacturing constraints—ensuring your high-power design transitions smoothly from concept to production.
Power Requirements Analysis
We begin by analyzing your current loads, thermal management needs, and environmental operating conditions to determine optimal copper weights and stack-up.
Thermal Management Planning
Strategically placing copper layers and thermal vias to create efficient heat dissipation paths away from critical components.
DFM-Optimized Layout
Designing with heavy copper fabrication constraints in mind, including proper copper balancing, appropriate spacing, and plating considerations.
Mixed Technology Integration
Seamlessly combining heavy copper areas with standard circuits, ensuring reliable connections between different copper weights.
Prototype Validation & Testing
Building functional prototypes and subjecting them to real-world current and thermal stress tests to validate performance.
Production-Ready Finalization
Conducting final DFM review and preparing all documentation for smooth, high-yield manufacturing.
Why Choose Us for Heavy Copper PCB Design?
Moving from a heavy copper prototype to mass production is where many designs fail. The hidden costs emerge not in the first article, but in low yield and field failures. Here, your design is executed to circumvent these pitfalls from the start, ensuring your path to volume production is predictable, efficient, and free from costly surprises.
- Anticipate Thermal & Mechanical Stress Points – Your board is modeled for thermal expansion and current density from the outset, specifying the optimal materials to prevent delamination and cracked vias—eliminating a common source of field failure.
- Inherently Optimized for Fabrication Success –The layout arrives already tailored for heavy copper processes, ensuring uniform plating and structural integrity to prevent the delays and cost overruns that derail time-to-market.
- Built-in Reliability from High-Stakes Fields – Your product benefits from design rules proven in mission-critical applications, incorporating redundant structures and conservative derating to deliver the robustness your brand is built on.
Our Heavy Copper PCB Manufacturing Capabilities
Our manufacturing facility is specifically equipped to handle the unique demands of heavy copper PCBs, from specialized plating processes to controlled thermal management during fabrication.
| Capability Item | Our Specifications |
|---|---|
| Copper Weights | 3 oz to 20+ oz |
| Board Thickness | 0.8mm - 4.0mm |
| Max Layer Count | 1-14 layers |
| Thermal Management | Embedded heat sinks, thermal vias |
| Material Options | FR-4, High-Tg, ISOLA, Rogers |
| Plating Technology | Step plating, Pad-on-Hole |
| Surface Finish | ENIG, HASL, Immersion Silver |
| Certifications | ISO 9001, IATF 16949, UL Certified |
Heavy Copper PCB Application Industries
Heavy copper PCBs are the backbone of reliability in high-stakes electronics. They solve fundamental challenges of power integrity, thermal management, and durability across a vast spectrum of industries. If your application demands robust performance under extreme electrical or environmental stress, you'll find your solution here.
Powertrain: EV/HEV Motor Controllers, On-Board Chargers (OBC), DC-DC Converters.
Battery Systems: Battery Management Systems (BMS), Pack Controllers, Discharge Units.
Power Distribution: Main Junction Boxes, Smart Fuse Boxes, LED Headlight Drivers.
Energy Conversion: Solar Microinverters & String Inverters, Wind Turbine Converters.
Power Backup: UPS Systems, Server Power Supplies, Data Center PDUs.
Grid Infrastructure: Smart Meter Power Modules, Grid Storage Converters.
Motor & Drive Systems: Variable Frequency Drives (VFDs), Servo Drives, CNC Machine Controllers.
Heavy Machinery: Welding Equipment, Industrial Laser Power Supplies, Magnetic Lift Controls.
Process Control: Programmable Logic Controllers (PLCs), Power Relays, Sensor Interface Modules.
Vehicle Systems: Flight Control Actuators, Missile Power Distribution, Radar & Sonar Power Amplifiers.
Ground Support: Navigation System Power Supplies, Communication Rig Power Units.
Satellite Systems: Power Conditioning Modules, Attitude Control Thrusters.
Imaging Systems: MRI & CT Scanner Gradient Amplifiers, X-Ray Generator Power Supplies.
Therapeutic Devices: Surgical Laser Drivers, Defibrillator Charging Circuits, Ablation Systems.
Lab & Diagnostic: DNA Sequencer Power Modules, Blood Analyzer Heaters.
Network Infrastructure: 5G mmWave Power Amplifiers, Base Station Rectifiers, Optical Network Power Backplanes.
Data Center: High-Performance Compute (HPC) Server Power, GPU Accelerator Boards.
Case Display
From Prototypes to Production-Ready Boards
Ready to Power Your Next Innovation with Heavy Copper Technology?
Yes, through mixed copper construction. We isolate high-power sections from sensitive signal areas while maintaining a single, reliable board structure.
We employ dynamic thermal simulation combined with empirical data from our testing. By analyzing thermal interactions between traces, planes, and your enclosure environment, we predict temperature distribution under worst-case scenarios. This data-driven approach ensures your design operates within safe thermal margins, preventing unexpected failures.
2-3 weeks for most orders, with expedited options available. We maintain dedicated capacity for heavy copper production to ensure predictable scheduling.
20 oz for full boards, with thicker options for selective areas. We’ve successfully delivered boards operating at 500+ amps in automotive and energy applications.