Full form of PCB board|| History, technologies, benefits & types!!!

Full form of PCB board

Full form of PCB board: Printed Circuit Board.


Above all, PCB is a conducting board. Used in the internals of an electrical and electronic device. The prefix printed is added to its name. To indicate the various circuit-related prints present on it. The board is usually made of fibre, laminating material or of composite epoxy. Most of them are light in weight and sharp at their edges. This eases their adjustments in the electronic hardware. The PCBs are user friendly. Their printed circuit diagrams. Assists the user to place the right element (resistors, ICs, diodes, transistors, LEDs etc.) in the right place.


Coming to its history, PCBs are the succeeders of Chassis (wooden boards). Chassis were used to be old designed boards. That contained end-to-end connected circuit elements. Circuits on such boards were complex, ugly and risky. User may receive some serious electrical shock working with them. On the other hand, PCBs are the most advanced form of electrical and electronic boards. Moreover, each and every print on them are computer-generated. Modern-day PCBs are informative and user friendly. Engineers used the Chassis until the HDI promoted the PCBs. With the then-new HDI technology. Electrical engineers are able to make denser circuits easily. Even, lengthy and complex circuits could be easily made on them. Also, provides zero risks of electric shocks and explosions. However, knowing the full form of PCB board is worth it.




TECHNOLOGIES USED IN A PCB:


A printed circuit board operates on two usual technologies. Both of them are useful, but engineers choose them accordingly.


1. Through-hole technology: The initial method was of through-hole. In this technology, the components are mounted in the holes present in the board. Moreover, these holes are made by drilling through the faces of the board. However, the circuit elements are placed inside the holes. And they are fixed by soldiering their ends at the other side of the board. This technique supports both one-sided and two-sided boards. Components may be fixed at both sides individually. This technique demands a higher rate of accuracy and attention. Moreover, it is required to drill the holes exactly the place indicated. Even a minor drilling fault, could disgust the PCB.


2. Surface-mount technology: Another technique for PCBs is surface-mount technology. This method is used for elements with negligible wire leads. This technique demands much advanced and modified circuit elements. PCBs made with this technology are easily adjustable and durable to be placed. Hardware is mainly equipped with this kind of PCBs. Since they are an advanced version of the classic through-hole boards. Even, denser circuits could be easily made by it. Automatic manufacturing of such boards is possible. No manual correction required, and accuracy is fully automatic. However, knowing the full form of PCB board is worth it.




TYPES OF AVAILABLE PCBs:


1. Single-layer: The most basic kind of PCB is the single-layered one. These boards encounter copper coats for fixing the elements. Moreover, the bottom of the board is finished with a fine layer of solid mask. This kind of PCBs is used in small devices. For instance, in calculators, remotes, chargers, toys, cameras, watches etc.


2. Double-layer: When two single-layered boards are connected backwards. However, with some space in between, forms the double-layered PCB. It has the same copper coatings but is found in a pair. They are mostly used in HVAC systems, LED lighting, amplifiers etc.


3. Multi-layer: When multiple numbers of single-layered PCBs are assembled together, form the multi-layered PCB. Everything is made within the boards, from holes to passages. Requires lengthy and accurate drilling though. These type of arrangements are used in file servers, data storing centres, companies specialising only in data storage etc.


4. Rigid: This type of PCBs are made of a rigid and tough base. These boards come with damage-free bases. They are aligned in hardware. That never gets destroyed at all. This kind of PCBs comes in all the three versions of layers (single, double and multi-layered).


5. Flexible: Being the antonym of rigid. PCBs of this type used to be completely flexible. This kind of PCBs is easy to fix and use in hardware parts. Moreover, due to its flexibility, they are used in complex hardware also. (From satellite parts, to jet engines to space shuttles).




SOME OF THE BENEFITS OF PCBs:


1. Large connections in small space: Unlike, early times PCBs are many advances now. It enables the makers to make larger and denser circuits. Easily on small-sized boards. A finger-shaped device, like the pen-camera. Has a complex circuit design inside. This is the magic of PCBs. With its use, the world's complex designs could also be pinned on a small board. It's a fact, that the world's smallest devices contain the world's complex circuits. And PCBs helped it to become successful.


2. Similarity: PCBs all over the world are made with the same universal process. Consequently, reading and understanding a single PCB. Could help the reader understand any other. However, all the PCBs are manufactured with the same industrial process. Labelling and marking are done accurately. Helping readers to understand the placements easily.


3. Stability: Due to their pre-planned shape and structure. PCBs are used in machinery. Once placed, they usually don't move. However, their external fixing is done to help giving strength to the design. From space crafts to space engines, everything contains the PCBs. Due to their not moving or stable nature. They are used in serious and recognised experiments. Those boards are advanced and hence trustable.
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