PCB (Printed Circuit Board)

The core of the board is made of yellow FR4 material.

The outer protective layer - soldering mask, is designed to protect the printed circuit board from external conditions,

protecting the copper layer from oxidation.

This layer is usually green.

It is a resin with the addition of colored pigments.

But why green color?

There are several facts that explain this matter.

Epoxy resin, which was used in the past to produce solder masks, was green.

Secondly, the correctness of the printed circuit used to be checked visually.

On a daily basis, the experts responsible for quality control inspected and studied the PCBs to check for any possible errors and defects.

Green color, thanks to its relaxing properties, reduced their tiredness and eyestrain.

In addition, the human eye adapts better to darker colors than to lighter ones due to the effect of temporary blindness.

As a result of testing and analysis, a solution for the green color was found.

Today, technology is advancing and depending on your needs so you can order PCB in any colour.