The question that many newcomers ask the most is: why are the vast majority of PCB board colors green? Today, the PCB engineer will come to answer this question for you.

1. Green ink is currently the most widely used and long-lasting ink, and it is also the cheapest in the market. Therefore, green is widely used as the main color for PCB products by many manufacturers.

2. Usually, during the production of PCB circuit boards, there are several processes that must go through the yellow light chamber, because green has a better effect in the yellow light chamber than other colors. In addition, when soldering components in SMT, PCB circuit board production needs to go through solder paste and lamination, as well as the final AOI calibration process. Optical positioning calibration is required, and boards with a green background color have better recognition effect on the instrument.

3. The production of PCB circuit boards may not necessarily be green, it depends on the color that the designer wants to make it, which color it is. The common colors for producing PCB circuit boards are red, yellow, green, blue, and black. However, due to production technology and other issues, production workers can stare at the board with their naked eyes for a long time under strong light, which can easily cause eye fatigue. Relatively speaking, green has the least damage to the eyes.

4. Green PCB circuit board production is relatively environmentally friendly compared to other colors, and generally does not release toxic gases when used in high-temperature environments.