Manufacturing Of PCB Boards Explained

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.

Just consider how many things you use each day that utilise electronics in one way or another. For these items to work properly the electronic components have to be set out in a particular order. Once the cover is removed from one of these items it becomes easier to see how this is fulfilled.

These electronic items are all placed on something called a printed circuit board. More often than not they will be either a pale brown colour or green. On one side you will see shiny metal tracks. These tracks are used to allow electrical power to only go where it is meant to.

There are basically two types of Printed Circuit Board. Depending on the density of components and the tasks they are asked to perform will dictate which type will be used. These two types are known as surface mount or through board.

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.

When the technician is happy that all of these components sit in their right places on the circuit board, they will then apply a conformal coating. This is another means of protection which is applied. So now when you see an electrical item you will have a greater awareness about how firms manage the manufacturing of PCB boards.

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