Types of Heavy Copper PCB

Oneseine is a company that creates different types of heavy copper PCB. Their thickest copper PCB has an inner layer of 8 ounces and an outer layer of 40 ounces. It is approximately 1.05mm thick. This makes it perfect for a variety of applications.

Printed circuit board

Printed circuit boards that use heavy copper are designed to withstand high current demands. They also help move heat away from sensitive components. Heavy copper PCBs can be expensive to produce but can also be useful in certain applications. They are useful in electronics and automotive applications where they connect components. They can be made from either rigid or flexible materials.

Heavy copper PCBs are increasingly being used in the fabrication of power electronics devices. While most commercially available PCBs use copper weights of about 1/2 oz/ft2, heavy copper circuits have copper weights of between four and 20 oz/ft2. The advantage of using heavy copper is its increased mechanical strength at connector sites and in PTH holes.

In addition to copper, printed circuit boards can also contain additional materials such as inorganic filler. The inorganic filler used in these products can range from titanium dioxide to aluminium hydroxide. Another option for inorganic filler is talc powder.

PCB manufacturers will first check with their customers to make sure they understand their exact requirements before they can determine the best heavy copper fabrication method. They will need to know the type of components that will be used on the PCB, the layer count and material requirements. They will be able to quote you for the process and present the pros and cons.

Another advantage of a printed circuit board made of thick copper is its high insulating properties. These properties make it an ideal choice for household electrical devices and other electronic applications.


Heavy copper PCBs are a popular type of PCB that is used in both household appliances and high-tech devices. They are also used in medical and military equipment. They have excellent corrosion and extension resistance, which makes them a perfect fit for high-voltage electronic equipment.

Heavy copper PCBs are excellent conductors. They can carry a high current without generating much heat. Moreover, they are highly resistant to heat, thanks to the copper-plated vias on them. The use of heavy copper boards is also common in applications requiring high frequency, speed, and power.

The advantages of heavy copper PCB are numerous. It can carry a higher amount of electrical current, has excellent electrical insulation, and can be used in harsh environments. The metal is also extremely durable and has good mechanical strength. In addition, heavy copper PCBs have copper-plated vias, which make them ideal for applications requiring high speeds and electrical power.

A heavy copper PCB with uniform thickness is very difficult to fabricate. It requires a specific technology. But when done correctly, it can be very high quality. By following these instructions, you can ensure that your heavy copper PCB is of high quality. It will be worth the effort in the end.


Compared to standard PCBs, super heavy copper PCBs provide many advantages. These boards are suitable for power electronics, defense, and medical devices. Their high durability and thermal stress resistance makes them ideal for various electrical applications. Super heavy copper PCBs are characterized by a high copper weight, which can reach 20 oz per square foot.

The process for manufacturing these boards is complex and expensive, especially the etching process. Additionally, it is important to choose the right manufacturer as the wrong one will result in a failed project. Look for manufacturers with international certificates and experience. This will help you determine the right manufacturer for your project.

Typically, super heavy copper PCBs are more expensive than standard PCBs. This is because thick copper PCBs require a greater amount of copper than standard PCBs. In addition, they require deeper etching and deeper undercuts, which means a higher cost.

Another benefit of heavy copper PCBs is that they can be designed to handle a greater amount of heat. This increases the lifespan of the circuitry and increases its performance. The high thermal capacity of heavy copper PCBs makes it ideal for high-powered equipment, such as power inverters, transformers, solar panels, and military equipment.

The use of heavy copper PCBs is growing in many applications, such as power supply systems and power electronics. Although they are more expensive to produce, they are in great demand in the electronics industry. The finished copper weight of these PCBs can exceed 4 oz/ft2, which makes them more expensive than standard copper PCBs.

Heavy copper PCBs also offer higher-quality construction. The thicker the copper layer, the more durable the board will be. This material is suitable for high-current circuits and also for applications requiring control circuits.


Heavy copper PCBs are widely used in electronic circuits. These boards have a higher current carrying capacity and a lower failure rate due to their heat-conducting properties. Heavy copper PCBs can handle high currents and are used in power converters, planar transformers, automotive and industrial controls.

The high-current PCB circuit board replaces the early transformer in electrical devices, greatly increasing wiring freedom and ensuring the reliability of products. Thick copper products are also widely used in high-speed rails, ships, and military products. These products can conduct more than 200 amps of current and are durable enough to withstand harsh conditions.

One of the primary advantages of heavy copper PCBs is their high heat-sink capacity. These boards can withstand high temperatures and frequent thermal cycling, which can destroy conventional circuit boards within seconds. Furthermore, they can support multilayer designs. These PCBs are an excellent choice for harsh environments.

Heavy copper PCBs are difficult to fabricate, and require special techniques and technology. Consequently, they are more expensive than standard PCBs. Therefore, choosing the right PCB manufacturer is crucial. A poor choice can lead to a costly failure. Consider the level of experience and international certification of your PCB manufacturer.

Heavy copper circuits are made with significant plating thicknesses. This means that pad sizes and trace separations must be adjusted accordingly. It is important to discuss these design requirements with the board fabricator during the early stages of development. For instance, Epec Engineered Technologies has developed design guidelines to help designers work with heavy copper PCBs.

Heavy copper PCBs are more expensive to produce but offer a number of advantages. They can withstand thermal cycles and are suitable for use in high-speed applications. They also have superior mechanical strength.


Producing heavy copper circuit boards is essentially the same process as light copper PCBs, but requires special etching and plating techniques. Traditionally, heavy copper PCBs were created by etching the copper clad laminated board material. This method, however, can result in uneven trace sidewalls and unacceptable undercutting. Nowadays, advanced plating methods are used to produce heavy copper PCBs with nearly straight sidewalls and negligible undercut.

Heavy copper PCBs are excellent for various electrical applications, ranging from simple gadgets to complex devices. They offer exceptional properties and are ideal for military, medical and defense applications. They are also used in a wide variety of other electrical applications. By using heavy copper, these PCBs can withstand more current and voltage than their standard counterparts.

One of the most common uses for heavy copper PCBs is in power conversion and heat dissipation. Because heavy copper conducts heat away from the components, it is an excellent choice for applications such as welding equipment, industrial controls, and military/defense equipment.

Heavy copper PCBs are a growing trend in the PCB industry. They feature a substantial copper weight of three ounces or more per square foot. These PCBs are more expensive to produce, but still have high demand. These boards are commonly used in applications requiring a thick copper layer of over four ounces per square foot.

In addition to conductive properties, copper PCBs are also good at reducing thermal stress. Today’s electronics operate at higher temperatures and currents, so it is important to ensure that the components are not exposed to excessive heat. Heavy copper PCBs are also more efficient in heat dissipation and can be produced in a smaller footprint.

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