Printed circuit board or PCB is composed of various conductive pathways or traces such as copper wires and fiberglass to support an electronic power system. This is also called a Printed Circuit Assembly (PCA) or Printed Circuit Board Assembly (PCBA) because of the number of electric components it has.
The printed circuit board has four different types, each having distinct features, complexity, and power levels.
This kind of circuit board is considered the simplest and the easiest to make. Its name is derived from its one-sided structure which means wires are printed only in one side. The other side contains holes and traces where the wiring and other components are attached and fused together with the leads that pass through the other side. Unfortunately, it has simple and limited circuit features which give low power, so it cannot be used in large or complex gadgets/devices.
• Double- sided
The only difference this has from the single-sided circuit board is that both sides contain the same circuit patterns. This is generally used when the electronic components are too many to be put on one side of the board. It goes without saying that the component concentration is significantly higher and its design and lay-out is more complex. The double-sided circuit board is also divided into two types. To know about electronics devices visit pcbnet.com.
• Plated Trough-Hole (PTH)
This kind has substrate circuit insulators which are intertwined together in a metalized hole.
• Non-Plated Through Hole (Non-PTH)
This one is almost the same with one-sided (both do not need plating) and much cheaper than the plated one. The components in these boards can be taken out any time since there are limited fusing terminals on both sides of the board.
• Multi-layered Circuit Boards
As the name suggests, it is made of multiple layers of copper wires and conductors. The board is made through putting one fiberglass after another until it reaches two to ten (or even more) layers. Each layer is connected with plated-through holes—making its circuit pattern simpler. Obviously, making this kind of circuit board requires precision and accuracy. That is why it is important to use computer programs for design assistance. Although the entangled circuits may sometimes cause signal and frequency failures, its overall advantages are greater compared to those of other types of circuit boards.
• Flexible circuit boards
This is not considered a major type of circuit board because the materials used are mainly of plastic origin. These kinds of boards are commonly used in televisions, digital cameras, and other complex devices and technologies. Like the other two, it can have a multi-layered circuit board. Interestingly, flexible circuit boards are known for their heat resistance.
There are two other types of circuit boards which are strongly related to PCB. Both are considered circuit boards because they’re similar to PCB in terms of function and looks.
• Integrated Circuit (IC)
This is a silicon chip which contains numerous circuit components on the surface of a very small chip. This is also popularly called as microchip. It functions in the same way as PCB does.
• Hybrid Circuit
This one is different from PCB because it contains components which are placed on the substrate instead of being soldered onto the outer surface.
The printed circuit board in general, regardless of its type, is inexpensive but highly beneficial. Effort and determination is required in understanding its complex system. It has a wide range of uses, from your traditional beepers to high technology cellular phones and advanced computer systems. The printed circuit board can also perform one or multiple functions—it all depends on how it is going to be used.
A printed circuit board have become an important part of a wide range of machineries, computing devices,automobiles,appliances,and other electronic gadgets.Pcbnet your most reliable source for high quality and on time Printed Circuit Boards.