What is thick copper PCB? A thick copper printed circuit board is a high current printed circuit board that contains 3 ounces or more of copper in the outer and inner layers of the board. Even if the total amount of copper is less than 3 ounces,multilayer pcb fabrication if the copper thickness of a PCB is greater than 4 ounces per square foot, it is considered a Thick Copper PCB.This large amount of copper is used as a substitute for increasing the degree of alignment, which is not always feasible.The standard PCB wiring for DC motors typically requires a specific width to provide the proper level of power while taking into account thermal constraints. Thick copper PCBs use thick copper wire to accomplish the same job, but at a reduced width.

The thickness of the plated holes and through-hole sidewalls can be increased for thick copper PCBs.1 oz vs 2 oz Copper The manufacturing process is slightly different from standard PCBs. Special plating and etching techniques are used to accommodate the excess copper content of high current copper printed circuit board pads? The main advantage of copper composite PCBs is that they can support high currents. High temperatures and repeated thermal cycling. These factors often lead to problems with standard circuit boards. What are the other advantages of thick copper circuit boards?

The use of thick copper circuit boards allows companies to achieve higher densities and minimize the number of layers, thus achieving a simple and durable structure. They are able to install more conductive material in less space between them and achieve a stronger mechanical working strength for the connectors, high currents coupled with the increasing complexity of the design will have an impact on more heat. Through student correct design, copper's high thermal conductivity enables its development to carry heat away from the PCB's temperature-sensitive components, thus keeping them in better condition. Copper is slightly more expensive in the market as one of our study materials, but the overall economic production and management cost control of thick copper PCBs is reduced. There is the option of using thick copper PCBs instead of copper cables thus further improving the cost effectiveness of the company. Specific production methods and approaches also allow for the mixing of thick copper with standard key features on the PCB, resulting in an effective reduction in the number of layers, a smaller footprint and significant savings in production operating costs.

A thick copper board is a layer of copper foil bonded to a glass epoxy substrate of a printed circuit board. A thick copper board is defined when the finished copper thickness is ≥ 20z. In PCB prototyping, thick copper board is a special process with a certain technical threshold and operational difficulties, and relatively expensive costs.

Thick copper pcb circuit board for application research areas: cell phones, microwave, aerospace, satellite communications, network base carrier station, hybrid system integrated control circuits, power supply high power circuit technology and other high-tech educational fields.

The thick copper board is characterized by high current-carrying capacity, small thermal strain and good heat dissipation performance. Not subject to the limitations of the processing temperature, can be used in high melting point when blowing oxygen, low temperature and other brittle unchanged, but also fire-resistant, non-combustible materials. Even in highly corrosive atmospheric environments, copper plates form a strong, non-toxic passivated protective layer.

Thick copper plates are widely used in a variety of household appliances, high-tech products, medical and other electronic equipment. The application of thick copper plates makes the circuit boards, which are the core components of electronic equipment products, have a longer service life, and it also helps to simplify the size of electronic equipment. In recent years, the application of thick copper board and the demand for rapid expansion, has become a good market prospects for the development of "hot" PCB.

Most thick copper boards are high-current (current X voltage = power) copper boards, the main application areas for power modules and automotive electronic components. Its main end-use areas are similar to traditional printed circuit boards (e.g., portable electronics, network products, base station equipment, etc.), but also different from traditional printed circuit boards, such as automotive, industrial control, power supply modules.

There are some differences in efficacy between high current substrates and conventional PCBs. The main function of a conventional PCB is to form wires that transmit information. High-current substrate is the substrate through which the high current passes, and the main role of the substrate carrying power devices is to protect the carrier and stabilize the power supply. The development trend of this high-current substrate is to carry more current, the heat emitted by the larger devices need to be dissipated, so the high current is getting bigger and bigger, the thickness of all the copper foil on the substrate is getting thicker and thicker. Currently 6oz of high current substrate copper thickness has become the norm.

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