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A Look At Manufacturing Of PCB Boards

By Andrea Davidson


The world today seems to run on so much technology, that it seems to be ever present. Technological advances throughout the years have made everyone's lives so much easier. Yet despite all of this amazing technology most people have absolutely no idea how such things work. This is because the field of electronics can be quite complex. It is electronic components that are used during the manufacturing of PCB boards.

As previously mentioned electronics are often regarded as a complex subject. All too often people feel that they do not have to know the reasons why things work, but they just have to know how to get it to do what they want. Fortunately there are people who are aware how these things interact with each other.

There are so many things, which an individual uses on a daily basis, that rely on electronic components. These components need to be laid out in a set manner for the item to operate as required. Were you to open one of these devices you would see how this gets achieved.

The electronic components are held on something known as a printed circuit board. This board will either be green or pale brown in colour. If you look closer you will see metal tracks on one side of the board. These tracks permit the electrical current to be delivered only to where it is allowed.

Printed circuit boards will be one of two basic types. The type used is often decided by the function that the customer wishes to achieve, and the space available to fit all of these components in. The different types are known as through board and surface mount.

Either type requires a steady hand and a good eye. The other requirements can be taught, but without the other two elements, populating a printed circuit board becomes very difficult. One thing that has to be successfully taught is the identification of these electronic components and how they will be fitted.

The through board is the most likely type that people will come across. It does have certain advantages. The components are all situated on the other side to the metallic tracks. The component's legs are fed through the board, hence the name. The legs are soldered to the metal tracks which conducts power through the component and also holds them securely in place. The legs are clipped to prevent them sticking trough too far, and possibly becoming a short circuit. The components are of a size that enable easier handling.

The components on the other type of board are securely soldered to the tracks. In themselves the components are much smaller, and so need greater care when being handled. To assemble this type of board high magnification is required as well as good lighting. This will help to eliminate the possibility of badly soldered joints.

Once all of these components are secured in their correct positions the board is then given a conformal coating. This will prevent any stray dust bridging across any of the component legs, or the tracks. Hopefully you will now have more of an understanding about some of the things which need to happen during the manufacturing of PCB boards.




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