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 latest capabilities page on heavy copper outlines how increased copper thickness 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

From defense and aerospace to industrial power and automotive systems, heavy copper PCBs deliver the performance needed for today’s high-power electronics.
Read more on Heavy Copper PCBs on the San Francisco Circuits website.

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