At present, there are many buyers have questions about the pcb circuit board soldermask color. For example,what color is the best? Does the soldermask color have any effect on the performance of the product and so on similar doubts? Let’s share the knowledge of board soldermask color difference and the use of pcb circuit board today.
First, PCB mainly provides interconnections between electronic components. There is no direct relationship between the board soldermask color and performance, and the difference in pigment does not affect the electrical performance. PCB board performance is good or bad that is determined by the use of materials (high Q value), wiring design,how many layers and other factors. However, black is the most likely to cause chromatic aberration in the process of washing the PCB. If there is a slight deviation between the raw materials and the manufacturing process in the pcb factory, the PCB defect rate will increase due to chromatic aberration. This directly leads to production costs increased.
PCB circuit board
In fact, the raw material of PCB is seen everywhere in our daily life. It is glass fiber and resin. Withing combine Glass fiber and resin,then harden into a heat-insulating and not easily bendable board. This is the PCB substrate. Of course, the PCB substrate formed by the combination of glass fiber and resin cannot transmit signals. Therefore, the fabrication manufacturer will cover a layer of copper on the PCB substrate. So the PCB substrate may also be called a copper-clad substrate.
Because the circuit traces on 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, if there is no strong RD (R&D) designer and a strong maintenance team, the black PCB will not be easily used. It can be said that using a black PCB means that company has confidence in the RD design and their post-maintenance team. In other side, it is also a reflection of the manufacturer’s self-confidence.
Most of the market use red pcb, green pcb, or blue pcb board, black pcb board is generally used in high-end or top flagship products, so it is not common.