The high development in electronics and telecommunication industry, the Thick Copper, printed circuit boards, are widely in use. Thick Copper means that the thickness of copper is more than the 140um (4 Oz).
This factor is essential when comparing the standard PCB weights 1-2 Oz (35um) to Thick Copper PCB. The features of Thick Copper PCBs are mainly required in the power electronic devices and central power system.
The width and copper weights are the crucial parameters for electrical engineers while designing a Thick Copper PCB. These two features determine the current-carrying capacity of the Thick Copper PCB. For PCB manufacturers, high-current is a challenge because their manageable load links to safety concerns.
Besides, the manufacturing process, such as pattern etching, drilling, and lamination process, also need to be carefully controlled during the manufacturing of Thick Copper finished PCBs. The Thick Copper PCBs are made with different copper weights on small footprints.
In PCB copper manufacturing, the structure has an essential role because it helps in reducing risk and avoids unnecessary cost, which results from complex PCB structures. Thick Copper finished PCB's offer lasting wiring solutions to fulfill the requirements of better thermal management systems.
They conduct optimal electricity and additional thermal dissipation. Allowable minimum weight, dimension, types of the components and materials, and spacing are the three design parameters that must be checked.
Smooth and frequent communication between electronic design and manufacturing engineers bring successful PCB fabrication. Design engineers must be aware of the manufacturer's detail such as capacity, trace, spacing, via diameter, and square foot size, etc. Besides, PCB type requirements have to be taken into consideration like power, thru-hole structure, and material.
For Thick Copper PCBs, the fabrication method is similar to standard FR4 PCB. Fabricating Thick Copper printed circuit boards involve etching and plating processes like high-speed plating and deviation etching. The main goal is to include a copper thickness in sidewalls and holes.
During the production process, when the printed circuit board is subject to several cycles, the plated holes may get weak. Ideally, the holes strengthen when Thick Copper is added. That is why in electrical circuits, it is preferable to choose extreme current and power applications.
It is possible to attach Thick Copper PCBs to the ordinary board seamlessly. Shortly, in the past, manufacturers tried to construct Thick Copper PCBs with the etching process only. Fabrication of few circuit boards underwent from scrap in this method because of over-etching margin and uneven edge lines.
To avoid this, later, advanced etching and plating techniques were applied to achieve optimal etching margin and straight edge. During Thick Copper PCB fabrication, assembling of cooling fins is of high significance.
The plating process thickens the thru-hole wall and plated through-wall in the Thick Copper PCB fabrication, and thermal conducting property on board surface is improved. Thick copper PCB advantages are:
In harsh environments like temperature fluctuations, Thick Copper finished PCB is to rely upon. For example, the mechanical resistance of PTH and contract points increases as well in ambient temperatures.
3.Thermal Dissipation: Overheating can fail any electrical system at any time. Here, Thick Copper circuit boards play their role. They help in avoiding possible overheating. This feature helps to maintain the temperature of the whole system easily to the desired levels. The circuit board dissipates the Thermal effectively hence, ensures optimal circuits performance.
Understanding the application requirement is essential before opting for the heavy printed circuit boards. It is not a new invention. They have been used in developing defense and military applications of weapon control systems. Thick Copper PCBs are commonly used in below-mentioned areas:
With the increase in PCB technology and complexity, electronic engineers need to concentrate on PCB design rules and manufacturing techniques. This way, the product can achieve the optimal balance between cost, performance requirement, and security. The benefits of features lead to minimum manufacturing risks.
|Copper Thickness||Line Width（mm)||Line Space（mm)|
3. For thick copper PCB, the requirement of hole copper is very strict. The standard of hole copper of PCBONLINE is IPC-600G Level 3 standard, that is, hole copper is equal or greater than 25um. Some customers also require hole copper to be equal or greater than 70um, we can also do that.
4. For more thick copper PCB manufacturers, solder mask processing is the most difficult, if the use of traditional manufacturing technology can not solve the problem of ink inhomogeneity, wrinkle, bubble, line Angle oil. Our factory uses electrostatic spraying equipment , so there will be no such problem in the process of soldering. The working principle of the equipment is to spray soldering ink on the board in a dust-free vacuum environment. The schematic diagram is as follows:
PCBONLINE produces thick copper PCBs with good performance and excellent quality. If you have other requirements, please contact us directly (email@example.com), you can communicate with our online customer service directly quote online.