PCB Technical - PCB printed board solder mask color selection

PCB printed board solder mask color selection

Printed circuit boards {Printed circuit boards}, also known as printed circuit boards, are providers of electrical connections for electronic components.
Printed circuit boards are often represented by "PCB", but cannot be called "PCB boards".

PCB board is mainly to provide interconnection between electronic components. The color is not directly related to its performance. The color difference will not affect the electrical performance. The performance of the circuit board is determined by factors such as the material used, the layout and the number of layers of the board. However, in the process of making circuit boards, black is particularly easy to cause chromatic aberration. If the raw materials and manufacturing processes used by the circuit board factory are slightly deviated, the defective rate of PCB circuit boards will increase due to the chromatic aberration. This will increase production costs.

The raw material of circuit board is very common in our lives. It is composed of glass fiber and resin, which are hardened to form a heat-insulating, insulating, and not easy to bend board. This is the circuit board substrate. If the PCB substrate formed by combining glass fiber and resin alone cannot transmit signals, we will cover a layer of copper on the surface, and therefore we also call the PCB substrate a copper-clad circuit board. Because the circuit traces of the black PCB board are difficult to identify, it will increase the difficulty of repair and debugging in the R&D and after-sales phases. Generally, if there are no well-developed RD (R&D) designers and a strong maintenance team, it is not Can easily make a black PCB board. It can be said that the use of black PCB board is a brand's confidence in the RD design and post-maintenance team. From the side, it is also a manifestation of the manufacturer's confidence in its own strength.

The choice of PCB printed board solder mask color is related to its performance?
Based on the above reasons, major manufacturers will carefully consider when choosing PCB board designs for their products. Therefore, most electronic products use red PCB boards, green PCB boards or blue PCB boards. Black PCB boards can only be seen on mid-to-high-end or top flagship products, so it is not a black PCB board. Better than the green PCB board, the color is not directly related to the performance of the PCB circuit board.

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