Thick Copper PCB
Thick Copper PCB/Heavy copper PCB for High-Current Applications
- SprintPCB specializes in Thick Copper PCB (also known as Heavy Copper PCB, High Current PCB), designed for high-current loads and enhanced heat dissipation.
High Current Capacity & Thermal Performance
We support copper weights from 2 oz to 6 oz, suitable for power electronics, automotive systems, and industrial equipment.
We provide PCB solutions for high current, high power, and power electronics applications. that ensure excellent current-carrying capability, low thermal resistance, and long-term reliability. These advanced PCB types are especially suitable for EV onboard chargers, DC-DC converters, industrial motor control units, and other high-load power electronics where enhanced copper thickness and reinforced current paths are critical.
Applications
Power supply systems
Motor drivers
EV chargers
Industrial power equipment
Automotive Electronics
Such as High Power PCB and heavy copper printed circuit board for energy storage systems; High Voltage PCB and Amplifier PCB for power conversion and motor drives; Controller PCB, high-power multilayer PCB and power electronics PCB for ECUs and ADAS; Thick Copper PCB and High Voltage PCB for electric vehicle powertrains; high-amp PCB, 2 oz copper PCB, 3 oz copper PCB, 4 oz copper PCB, and heavy copper layer PCB for power electronics applications in power conversion units and motor drive modules; heavy copper PCB and high-voltage PCB for electric-vehicle powertrains, onboard chargers, and high-current DC-DC converters.
Thick Copper PCB Capabilities
| Technology type | Process capability |
| Copper weights | 2–6 oz of copper layers |
| Trace width | Reinforced |
| Thermal vias | Enhanced |
| Other | High-current routing design support |
PCB Roadmap
| Feature | Prototype production | Mass production | R&D |
| Layers count | 1-40 | 1-20 | 60 |
| Minimum board thickness (with solder mask) | 0.3mm | 0.6mm | 0.20mm |
| Maximum board thickness | 6mm | 4mm | 10mm |
| Maximum board size | 546mm x 622mm | 457mm x 610mm | 1250mm x 570mm |
| Minimum line/space innerlayer (depends on copper weight) | 2.5mil/2.5mil | 3mil/3mil | 2mil/2mil |
| Surface finish types | OSP, HASL, ENIG, Immersion Silver, Immersion Tin, Hard gold (Connector board), hard gold (Selective board), soft gold, ENEPIG | OSP, HASL, ENIG, Immersion Silver, Immersion Tin, Hard gold (Connector board), hard gold (Selective board), soft gold, ENEPIG | OSP, HASL, ENIG, Immersion Silver, Immersion Tin, Hard gold (Connector board), hard gold (Selective board), soft gold, ENEPIG |
| Mechanical hole size (Finish hole size) | 0.15 mm | 0.2 mm | 0.1 mm |
| Maximum aspect ratio PTH | 20:01 | 12:01 | 20 |
| Finished tolerance PTH | +/-0.075 mm | +/-0.05 mm | +/-0.025 mm |
| Finished tolerance NPTH | +/-0.05 mm | +/-0.025 mm | +/-0.015 mm |
| Epoxy filled through holes (Y/N) | Y | Y | Y |
| Capped via (Heat dissipation) (Y/N) | Y | Y | Y |
PCB Delivery Time
| PCB Quantity (㎡) | 2-10 Layer PCB Delivery Time | 12-20 Layer PCB Delivery Time |
| ＜1㎡ | 1 – 8 days | 4 – 13 days |
| 1 ㎡ – 5 ㎡ | 2 – 10 days | 5 – 15 days |
| 6 ㎡ – 20 ㎡ | 4 – 15 days | 7 – 19 days |
| ≥20㎡ | 7 – 18 days | 10 – 23 days |
Providing you with one-stop PCB manufacturing and PCB assembly services
Reliable and stable products
Professional engineering support
Fast and on-time delivery
Full-process customer service
Our PCB manufacturing equipment
SprintPCB Group possesses the industry’s most advanced PCB manufacturing equipment, ensuring your PCB products are delivered to you with the highest quality on time and within the agreed delivery period.
Your trusted PCB manufacturing and one-stop PCB assembly supplier
• Expert in Small-to-Medium Batch Production
• High-Precision PCB Fabrication & Automated Assembly
• Reliable Partner for OEM/ODM Electronic Projects
Business Hours: (Mon-Sat) From 9:00 To 18:30