San Francisco Circuits Offers Heavy Copper PCB Manufacturing & Assembly Services

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San Francisco Circuits, a global provider of advanced printed circuit board (PCB) fabrication, assembly, and services, specializes in delivering robust, high-performance heavy copper PCBs fast. Their network of advanced fabrication partners can meet the toughest electrical and thermal demands of PCB designs requiring 4 oz to 10 oz copper builds. 

As electronic systems demand higher power and improved thermal performance, heavy copper PCBs have become essential for high-current, high-reliability applications across industries. San Francisco Circuits’ heavy copper PCBs have increased copper thickness, which enhances current capacity, thermal conductivity, and mechanical strength in demanding environments.

Why Heavy Copper Matters

By utilizing copper weights from 4 oz to 10 oz per square foot, heavy copper PCBs support higher current flow, improved heat dissipation, and greater structural durability compared to standard designs. 

Key Advantages:

• Current Carrying Capacity – Supports high current with minimal voltage drop. 
• Thermal Management – Reduces heat buildup for better reliability. 
• Mechanical Strength – Resists warping and cracking under stress. 
• Design Efficiency – Enables smaller, more efficient layouts.  

Advanced Heavy Copper Production Capabilities

San Francisco Circuits offers fast-turn fabrication and assembly for complex heavy copper builds, including:

• Copper plating up to 10 oz/ft² 
• Integrated thermal vias and heatsinks 
• Sequential lamination for multilayer designs
• Lead times as quick as 72 hours for bare boards  

Engineers choose San Francisco Circuits for their deep technical expertise, fast turnaround times, and proven ability to deliver complex, high-current boards with unmatched reliability. Their heavy copper solutions are ideal for demanding environments, including mission-critical applications in defense, aerospace, and industrial power systems, delivering the performance needed for today’s high-power electronics.

Click here to learn more about heavy copper PCBs from San Francisco Circuits.