Basics information for PCB

It is common sense that in order for a certain electronic device to function well, all of its components must work well enough together. Failure of one of its components to function may result to a total circuit breakdown for the device, therefore rendering it unable to function anymore. One important component that we can see in almost all of the electronic devices today would be the so called as PCB, which is just short for Printed Circuit Boards. These boards mechanically supports and electrical connects electronic components in a device. This is done so with the use of copper tracks, pads, and other materials which are either etched or printed on the surface of the board. These boards are made up of copper sheets which are laminated in a non-conductive, or semi conductive, substrate. As mentioned, they are present in almost all of the devices that we have today. Take for example your CPU. PCB is in the form of a motherboard. We see this board inside our CPUs which function as the “brain” where the rest of the components inside the CPU are connected. This connection allows the free flow of communication between components, thereby allowing the creation of a circuit. Take the motherboard away and it would be impossible for the CPU to function.
There are many forms of printed circuit boards. Some are single layered boards, while some can be as many as twenty or even forty layered boards. The number of layers would greatly depend on the complexity of the circuit. Simple ones may be single layered while more complicated circuits may be as many as 42 layers. The conductors on the different layers for each of these printed circuit boards are connected by plate-through holes which are called as vias. Some of the advanced PCBs may also have other components such as capacitors, resistors, and active devices embedded on its surface.

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