PCB News - Why does PCB color have nothing to do with the quality of the PCB board?

Why does PCB color have nothing to do with the quality of the PCB board?

Many newcomers who have just entered the industry have doubts about the color of PCB boards, and do not know what color PCB boards are of high quality. In fact, PCB mainly provides the interconnection between components, and its color has no direct relationship with performance and quality, and the difference in color does not affect the electrical properties. Why does PCB color have nothing to do with the quality of the PCB board?

The raw material of PCB is seen everywhere in our daily life, that is, glass fiber and resin. The glass fiber and resin are combined and hardened to become a heat-insulating, insulating, and not easy to bend board, which is the PCB substrate. Of course, PCB substrates made of glass fiber and resin alone cannot conduct signals. Therefore, on the PCB substrate, the manufacturer will cover a layer of copper on the surface, so the PCB substrate can also be called a copper-clad substrate.

PCB color and PCB board quality

There is a situation that makes people mistakenly think that the color of the PCB is related to the quality of the PCB: individual PCB designs use black, which is likely to cause color difference during the PCB washing process; if the raw materials and production processes used by the PCB factory are slightly different, it will Because of the increase in PCB defect rate due to chromatic aberration, it directly leads to an increase in production costs. As the circuit traces of the black PCB are difficult to identify, it will increase the difficulty of repair and debugging in the R&D and after-sales phases. Generally, brands without strong RD (R&D) designers and powerful maintenance teams will not easily use black PCBs. . For the above reasons, when major manufacturers choose PCB designs for their products, most of them use red PCBs, green PCBs or blue PCBs. Black PCBs are rarely seen.

In short, the performance of the PCB board is determined by factors such as the material used (high Q value), wiring design and several layers of the board; the color of the PCB has nothing to do with the quality of the PCB board.