PCBs are essential components in today’s technology-driven world. They serve as vital platforms for large-scale integrated circuits. In the past, there was a misconception in the DIY industry that “more layers in a PCB equals better performance.” However, this belief is incorrect. The addition of PCB layers is often a last resort due to physical constraints. When double-layer wiring is insufficient, additional layers are added to accommodate the circuitry. Unfortunately, multi-layer PCBs come at a higher cost and do not always result in more cost-effective products.

Typically, the number of layers in a PCB is determined by certain factors.


With the advancement of science and technology, the integration of electronic components has become higher and higher, and the number of layers of the motherboard PCB has also begun to decrease. The materials that need to be “stacked” have also begun to be highly integrated. Think about the previous TVs that require a “so big” space. While the current LCD TVs have been made thinner and have better display effects (ignoring the difference between CRT and LCD technology here), and the same is true for the DIY industry.

The material of the PCB is still different. At present, the mainstream PCB uses glass fiber as the main raw material. The identification method is very simple. The side is very flat and not rough. This is a great PCB. And if you see a particularly rough PCB that may be made of fire-resistant cardboard, it is a poor PCB board.

By the way, a good PCB board is not necessarily particularly hard, but it must be very tough, and can quickly return to its original shape after being gently bent, and there will be no brittleness and deformation. Of course, if your power is great, we not recommend you use this method to test the strength of the motherboard, it is easy to cause damage outside the free warranty.

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