Many newcomers who are just entering the industry have doubts about the color of PCB boards and do not know what color PCB bases are of high quality of the PCB board. In fact, PCB manufacturing 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.
The raw material of Prototype 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 base. Of course, the PCB base formed by combining glass fiber and resin alone cannot conduct signals. Therefore, on the PCB fabrication, the manufacturer will cover a layer of copper on the surface, so the PCB board can also be called a copper base.
There is a situation that makes people mistakenly think that the color of the multilayer PCB is related to the quality of the PCB circuit board: 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. Since 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 stages. 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), PCB layout design; the color has nothing to do with the quality of the PCB board.