Heavy Copper PCB Fabrication Service

Huayihai fabricates custom heavy copper PCBs with copper weights up to 6 oz for high-current and high-power designs. Boards are built according to customer Gerber files, where thick copper traces carry high currents, improve thermal distribution, and increase mechanical robustness.

Heavy copper designs can be manufactured on multilayer PCB stack-ups according to customer requirements. Huayihai manufactures heavy copper PCBs from 2 layers up to 64 layers under IPC-A-600 workmanship standards.

Custom Manufacturing Only

We fabricate heavy copper PCBs according to customer Gerber files and technical specifications. We do not supply ready-made or standard stock boards.

Product Specifications

Key Features

• Copper weights up to 6 oz for high-current carrying

• Available on 2 to 64 layer stack-ups

• Improved thermal distribution and mechanical strength

• Combination of power and signal layers on one board

• ENIG and other finishes compatible with heavy copper construction

• Manufactured under IPC-A-600 workmanship standards

Manufacturing Highlights

Heavy copper fabrication requires controlled plating and etching so that thick traces keep defined edges and reliable insulation spacing. Huayihai runs heavy copper builds through the same impedance, drilling, and testing discipline as its standard multilayer production.

Key fabrication elements include:

• Stack-up and current-carrying review of Gerber files

• Thick copper plating with controlled trace geometry

• Heavy copper and standard signal layers combined in one stack-up

• Via and through-hole plating matched to current requirements

• 100% electrical testing before shipment

Typical Applications

Heavy copper PCBs suit designs where currents, heat, and reliability dominate:

• Power Supplies and Power Conversion

• Automotive Power Electronics

• Motor Drives and Inverters

• Welding and Industrial Power Equipment

• Renewable Energy Systems

• Other High-Current Applications

Why Choose Huayihai

• Over 20 years of PCB manufacturing experience

• Copper weights up to 6 oz, confirmed by process capability

• Power and signal layers combined in multilayer stack-ups

• Quality management based on ISO 9001, ISO 13485, IATF 16949 and UL

• IPC-A-600 workmanship standards

• Prototype, low-volume, and mass production support

Manufacturing Process

• Gerber file and stack-up review (2–5 working days engineering review)

• Heavy copper plating and trace formation

• Lamination and drilling

• Outer layer imaging

• Solder mask and surface finish

• Electrical testing and final inspection

FAQ

Q1: What is the maximum copper weight?

Up to 6 oz, on 2 to 64 layer stack-ups.

Q2: Why use heavy copper PCBs?

Thick copper carries higher currents, spreads heat, and improves mechanical durability in power designs.

Q3: Can heavy copper be combined with controlled impedance?

Yes, impedance control with ±5% tolerance is available alongside heavy copper layers.

Q4: What surface finishes work with heavy copper?

HASL, lead-free HASL, ENIG, Im Sn, and OSP.

Q5: What is the standard lead time?

3–5 working days for PCB prototypes and batches, after file review is complete.

Request a Quote

Need custom heavy copper PCBs up to 6 oz for high-current designs?

Send us your Gerber files and specifications for a quotation. Learn more at nexuspcba.com.

About Us

20+ Years of PCB & PCBA Manufacturing Excellence

Founded in 2005, we are a professional PCB and PCBA manufacturer based in Shenzhen, China, providing reliable electronic manufacturing services to customers worldwide. With over 20 years of industry experience, we specialize in PCB fabrication, SMT assembly, DIP assembly, component sourcing, and turnkey PCBA manufacturing, supporting projects from rapid prototyping to high-volume production.

Today, our 8,000㎡ manufacturing facility is supported by 300+ skilled employees and a complete production system designed to deliver consistent quality, efficient lead times, and dependable manufacturing solutions.

Comprehensive Manufacturing Capabilities

Our integrated manufacturing capabilities allow us to support a wide range of PCB and PCBA requirements under one roof. From engineering support and material preparation to final assembly and delivery, every stage is managed through a streamlined production process to ensure efficiency and product consistency.

• Our manufacturing capabilities include:
• PCB Fabrication
• SMT Assembly
• Through-Hole (DIP) Assembly
• Turnkey PCBA
• Component Sourcing
• Prototype Production
• Low-Volume & Mass Production

With advanced PCB production facilities and high-speed SMT production lines, we are capable of manufacturing complex electronic products while maintaining stable quality and reliable delivery performance.

PCB Technologies We Support

We manufacture a wide variety of PCB products, including:

• Single-Sided PCB
• Double-Sided PCB
• Multilayer PCB
• HDI PCB
• High-Frequency PCB
• Aluminum PCB
• Heavy Copper PCB
• High-Tg PCB
• Rigid-Flex PCB
• Hybrid Material PCB
• Planar Transformer PCB
• Custom Special PCBs

Our flexible manufacturing capability enables us to meet diverse technical requirements for both standard and customized projects.

Quality Comes First

Quality is at the core of everything we do. Our experienced engineering team works closely with production and quality management departments to ensure every project meets customer expectations for performance, reliability, and consistency.

Our manufacturing system is backed by internationally recognized certifications, including:

• ISO 9001
• ISO 13485
• IATF 16949
• UL Certification

These certifications reflect our commitment to continuous improvement, standardized manufacturing processes, and reliable quality management across every stage of production.

Industries We Serve

Our PCB and PCBA solutions are widely used across multiple industries, including:

• Industrial Control
• Medical Electronics
• Communication Equipment
• Smart Home Devices
• Power Supply Systems
• Computer Networking
• Consumer Electronics
• Automotive Electronics
• Aerospace Applications

Why Choose Us

Your Reliable Manufacturing Partner

From prototype development to large-scale production, we are committed to providing dependable manufacturing solutions that help customers bring innovative electronic products to market faster. By combining experienced engineering, efficient production management, and internationally recognized quality standards, we strive to become a trusted long-term manufacturing partner for customers around the world.