When you get a PCB board, the most intuitive to see the color of the ink on the board, is what we generally refer to as the PCB board color. PCB boards come in a variety of colors, including green, blue, red and black.

1.Low cost

Green PCBs are one of the most widely used types of PCB boards, so the relatively low cost of mass production can provide a more affordable solution, so green is used by a large number of manufacturers as the main color of their products.

2.Easy to develop

During the PCB manufacturing process, chemicals are used to remove those unwanted parts. Green PCB boards are easier to develop than other colors because during chemical development, the green color is more easily saturated by the developer, making the unwanted parts easy to remove.

3.Good visual effect

Green PCB color contributes to the visual contrast of high brightness metal pads and logos, making the board easier to identify and maintain.
On the one hand, due to the current production process and other reasons, some of the lines of the quality inspection process still need to rely on the naked eye of the workers to see the observation and identification. In the case of a strong light in the eyes constantly staring at the board board, which is a very tiring work process, relatively speaking, the green is the least harmful to the eyes.
On the other hand, usually, the entire PCB board products in the production process is to go through the process of making boards and SMT. In the SMT for welding components, PCB to go through the solder paste and post piece and the final AOI calibration light process, these processes are to learn to optical positioning calibration, there is a green background color on the recognition of the instrument is better.

4.Good confidentiality

Green PCB color relative to other colors, more common, so it is relatively difficult for people to guess the special design of the board and imitation, better confidentiality.
Of course, based on confidentiality considerations, the market has a small number of manufacturers will use the black PCB board. Because the black board is not easy to see the wiring, which brings a certain degree of difficulty to the copy board. Careful partners will find that most of the Android embedded boards use black PCB.

5.Long history of use

About the middle and late last century, the industry has begun to pay attention to the color of the PCB board, mainly because many of the first-line manufacturers of high-end boards are used in the green PCB board color design, so people slowly think that the PCB color is green must be high-end, so the use of green PCB is also more long and extensive.

6.Relatively safe and environmentally friendly

Compared with other colors, green PCB is relatively safe and environmentally friendly.
For example, blue and black ink were doped with cobalt and carbon lamp elements, with certain conductive properties, in the case of power is likely to appear short-circuit problems, but the green is relatively speaking, the possibility of short-circuit is smaller. And green PCB is relatively more environmentally friendly, when used in a high-temperature environment, generally does not release toxic gases.

Concluding remarks

To summarize the various reasons, it is generally better to use green PCBs. However, although green PCBs are the most common, customers can customize the color of the PCB according to their needs.
For example, red PCB can improve the visual effect, and black PCB can make the board look more high-end and technological. So the choice of PCB board color can totally depend on the customer’s needs and design requirements