What is a printed circuit board, and what is the purpose?

A printed circuit board or printed circuit board is, for example, glass fiber and epoxy plate on which a trace pattern (the network of guide tracks) with spots (solder holes) is applied. These guide ways are also called "printed wiring." The purpose of such a printed circuit board is that components can be mounted very precisely on it. A circuit board that is not yet provided with parts is called a "bare" circuit board. The English expression is PCB (Printed Circuit Board). For the life of the entire circuit board, it is best to handle it with a grounded wristband.

Bi-layer and multi-layer circuit boards

Simple single-layer printed circuit boards have only one layer of printed wiring (on the solder side). There are also more complex circuit boards, the two-layer circuit board or bi-layer. For even more complex applications, multi-layer printed circuit boards or multi-layer printed circuit boards are being developed. Due to the required precision technology - to geographically match all the tracks and spots - the price of these printed circuit boards is quite high. Today there are already 24 low-sprint plates. 36 low-sprint plates are in the development stage. The (non-printed) circuit boards are virtually insensitive to static electricity and ESD.

Via's

Trace patterns of bi or multi-layers can be interconnected via vias. Vias are small metal through-connections in the form of a round pin that goes through the printed circuit board and thus make the mutual pattern connections.

Metalized solder spots

The purpose of soldering spots is, among other things, to be able to assemble and solder the spurs of components. The spots of professional circuit boards are often provided with metallization. If a spot has a thin layer of metal on the entire inside of the hole, then that is a metalized spot. The purpose of this metallization is to get a better and stronger solder connection because the solder can flow through the entire spot.

PCB as an electronic component?

Funny is the fact that a "bare" circuit board itself is starting to look like an electronic component. Due to the increasing electrical capacities between the mutual layers, resistance and induction values??of the very thin and sometimes bizarre long lengths of conductor tracks, these are issues that the circuit designer must increasingly take into account. This can be a real problem, especially with high frequencies and "sharp" digital signal forms.

Functionality and lifespan

You now know exactly what a printed circuit board is, what it looks like, and what the purpose of such a printed circuit board is. You now also understand what vias, metalized solder spots, and multi layers are! What you still need to know is that you must handle printed circuit boards ESD-safe, because unprotected electronics can degenerate due to static electricity and ESD. The essential tool for this is the use of a grounded wristband, and this will improve the functionality and lifespan of that electronics.

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Jagdish Prajapat is a professional digital Marketer & best SEO expert in India. He is a passionate writer and has actively writing useful blogs and articles about technical stuff.