How to judge the quality of multi-layer PCB circuit board from PCB color. Today, Honglian editor will explain to you what kind of influence the color of PCB has on its performance. How should we judge the quality of multilayer PCB circuit boards.

First, as a printed circuit board, PCB mainly provides interconnection between electronic components. There is no direct relationship between color and performance, and the difference in pigments does not have much impact on the performance of electrical appliances. However, 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. In the process of washing PCB, black is the most likely to cause color difference. If the raw materials and manufacturing process used by the PCB factory are slightly off, the PCB defect rate will increase due to the color difference. This directly leads to an increase in production costs.

In fact, the raw materials of PCB are 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, a PCB substrate 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.

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 stages. Generally, if there is no brand with profound RD (R&D) designers and a strong maintenance team, black PCBs will not be easily used. of. It can be said that the use of black PCB 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.

Based on the above reasons, major manufacturers will carefully consider when choosing PCB board designs for their products. Therefore, most of the products with large shipments in the market that year used red PCB, green PCB or blue PCB version. Black PCB can only be seen on mid-to-high-end or top flagship products, so customers should no longer think of black PCB is better than green PCB.

Shenzhen Honglian Circuit Co., Ltd. has been focusing on the R&D and production of high-precision multilayer circuit boards, single- and double-sided circuit boards, and special circuit boards for more than ten years. It has national certification and is a high-tech company integrating R&D, production and sales. Technology companies, if you are interested in our multi-layer PCB circuit boards, please contact us: 0755-81720355.