Heavy Copper PCB Manufacturing & Assembly Capabilities
San Francisco Circuits

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October 15, 2025 - San Mateo, California - San Francisco Circuits announces its Heavy Copper PCB Manufacturing & Assembly Capabilities, and why it matters. 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 heat sinks
• 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. 

About San Francisco Circuits

San Francisco Circuits is a provider of PCB fabrication and assembly, has a dedicated team specializing in simple and complex PCB fabrication and assembly technologies. They can produce elaborate and high-quality PCBs in a number of custom and common layouts. From basic to intricate PCBs–their engineers will meet your PCB fabrication & assembly needs. The company provides a rare balance between technical expertise and competitive pricing. And they not only provide high-quality products but also high-quality customer service at the same time. San Francisco Circuits has been voted by National Television as the "world's greatest in PCBs" and has demonstrated experience as a power player in PCB fabrication and assembly.

If you are looking to discuss PCB projects of any size or scope, feel free to reach out to them via our website (see below).

Contact

Victor Bilandzic
San Francisco Circuits, Inc.
Phone: 1-800-732-5143

Web:  www.sfcircuits.com