Heavy Copper PCB Fabrication 0.2mm–8mm Printed Circuit Board Fabrication Service

In today's rapidly advancing electronics industry there is a noticeable shift, towards creating advanced devices that can handle increased currents and heat. This trend demands PCB that can handle higher electrical currents and more heat. Therefore, heavy copper printed circuit board (PCB) are being used to meet these demanding requirements.

Why Do You Need Heavy Copper PCB?

The extra copper thickness allows the board to conduct more current and transmit signals across it, making them ideal for high current industries that require high power transmission, such as automotive and power supply electronics.

High Current
A significant benefit of heavy copper circuit board is the enhanced current-carrying capacity provided by the thicker copper layer, without compromising performance or causing overheating. This characteristic renders them exceptionally suitable for power electronic devices, which often necessitate currents exceeding 30 amps.

High Heat Generation
Thicker copper layers lower the overall thermal resistance of the PCB, enabling heat to dissipate more easily. Therefor, the heat will have a larger copper surface for heat dissipation.

Space Constraints
Thick copper PCB can often accommodate higher currents with fewer layers compared to standard PCB, allowing for a more compact design and potentially decreasing the overall dimensions and weight of the PCB.

Heavy Copper PCB Capabilities
DuxPCB is a reliable heavy copper PCB supplier. With our experience and resources we can produce PCB featuring inner layer copper thickness ranging from 0.5oz to 12oz and outer layer copper thickness from 3oz to 20oz.

Applications of Heavy Copper PCB
Heavy copper PCBs are becoming more and more popular due to their wide application in the following fields:

• Military: Weapons control, radar, and monitoring systems.
• Automotive industries: Rail track system and signal transmission system.
• Power distribution: Excitation systems for power regulators, power grid switching systems, high power rectifiers, and overload relays.
• Transportation: Power converters for railway systems, power line monitors, traction converters.
• Industrial controls: Safety and signal systems, welding equipment, protection relays, surge protectors.
• Renewable Systems: Power converters, energy storage, power grid back-up, hydroelectric power plants control panels.

DuxPCB provides services including PCB Prototype & Batch Production, PCB Assembly (SMT), Electronics Modules Selling, CNC Machining, etc. We are committed to meeting the needs of global makers from different industries in terms of quality, delivery, cost-effectiveness and any other demanding requests in electronics.

FAQs about Heavy Copper PCB

How much space should be left between copper features?
In PCB design its advised to increase the distance between copper components. Etching the gaps between traces is tougher, than etching a trace of the width.

Can standard PCB lamination techniques be used with heavy copper PCB?
Yes, standard PCB lamination techniques can be used to safely sandwich up to 50 layers of copper windings as thick as 10 oz/ft². But with careful process adjustments in lamination and solder mask.

What kind of laminate used to manufacture heavy copper PCB?
High TG FR4 or ceramic-based laminates are designed to withstand higher temperatures, making them suitable for applications with high power densities and heat generation.

What are some alternatives to heavy copper PCB?

• Aluminum PCB: while being lighter than heavy copper PCB and exhibiting decent heat conductivity, have a somewhat constrained current carrying capacity.
• Ceramic PCB: known for their superior thermal conductivity, can handle exceptionally high current, albeit at a premium cost.

What are the disadvantages of heavy copper PCB?

• Increased cost: The necessity for specialized manufacturing procedures and materials for heavy copper escalates their cost, rendering them pricier than standard PCB.
• Manufacturing complexities: The processes of lamination, etching and drilling of thick copper can present increased intricacies.
• Weight: Owing to the augmented quantity of copper, heavy copper PCB exhibit a greater weight compared to standard PCB. This could potentially be a consideration for applications that are sensitive to weight.
• Impedance control: Achieving precise impedance matching can be more challenging due to the thicker copper layers.