What is High Copper Thickness PCB and Why is it Important?

High Copper Thickness PCBs are specially designed printed circuit boards that use a thicker copper layer than the standard 1 oz per square foot (oz/ft²) commonly found in most PCBs. This increased copper thickness enables the PCB to carry higher current loads and better dissipate heat, making them suitable for high-power applications that require more robust and durable circuitry.

In regular PCBs, the copper layer typically measures 1 oz/ft², which is sufficient for everyday electronic devices. However, when it comes to power electronics and other heavy-duty systems, higher copper thicknesses are required. These PCBs often have copper layers ranging from 2 oz/ft² up to 10 oz/ft² or even more, depending on the application. And the highest copper that RINGPCB can do is 20oz for outer layer and 12oz for inner layer.

Key Applications of Heavy Copper PCBs

Heavy Copper PCBs are widely used in industries where high power and efficient heat dissipation are critical:

• Power Conversion Systems: These PCBs are essential in applications like solar inverters, power supplies, and industrial power conversion equipment where high currents are required for energy transfer.

• Electric Vehicles (EVs): In the automotive industry, especially for electric vehicles, high copper thickness PCBs are used in electric drive systems and battery management systems (BMS).

• Industrial Equipment: Heavy copper PCBs are commonly used in motor controls, circuit breakers, and power distribution units where high current flows and heat management are necessary.

The heavy copper design of these PCBs ensures they can handle extreme power conditions and offer superior thermal performance, preventing overheating and ensuring longevity in demanding environments.