Actually, enthusiasts who have been learning circuits may all have questions about why most of the boards we use are green. In fact, pcb board production is not necessarily green. It depends on the designers. What color is it made of? What color is it? Under normal circumstances, we choose green, because the green eye stimulation is small, production, maintenance personnel in the long time staring at pcb circuit board production is not easy to eye fatigue, small damage to the eyes, commonly used colors, yellow, black, red, Various colors are paints sprayed on the surface after they are made.
1. What are the reasons for using green PCBB PCB production?
(1) The domestic professional pcb circuit board production company introduced: The green ink is the most widely used so far, the longest history, but also the cheapest in the current market, so green is used by a large number of manufacturers as their own products The main color.
(2) Under normal circumstances, pcb circuit board production process in the board, there are several processes must go through the yellow room, because the effect of green in the yellow room must be better than other colors, but this is not the most The main reason. When soldering components in SMT, pcb circuit board production goes through solder paste and posts and the final AOI calibration lamp process. These processes are all optically positioned and calibrated, with a green background to identify the instrument. a little better.
2. What are the common colors in pcb circuit board production?
(1) The common pcb circuit board production colors are red, yellow, green, blue and black. However, due to the production process and other issues, many lines of quality inspection procedures must still rely on the naked eye to observe and identify the workers (most of them currently use flying probe testing technology). In the case of strong light, the eyes are constantly staring at the board. This process is very tiring. Green is the most eye-catching product, so most manufacturers on the market today use green PCBs.
(2) The domestic well-known pcb circuit board manufacturers introduce: The principle of blue and black is that they are respectively doped with cobalt and carbon lamp elements, have certain conductive properties, in the case of power is likely to have short circuit problems, and green The production of pcb circuit boards is also relatively environmentally friendly, and when used in high temperature environments, toxic gases are generally not released.