How many layers PCB can have?
1.Quickturn printed circuit board production Quickturn except for a very small number of Microwave radio frequency boards that use 6 or 8-layer PCBs (such as MSI GD80 or above/ASUS deluxe/ROG or above/GIGABYTE UD5 or above), most HDI High Quality PCB Products are still 4-layer PCBs. Since a long time ago, the general high frequency board has been a 4-layer PCB, because 4 layers are just enough to use. If the number of layers is more, it is not a Low Cost Prototype PCB.
2. The number of layers has basically nothing to do with the electrical performance of the motherboard. Of course, it cannot be said that there is no, but in this respect, the influence of the level of the engineer and the BIOS design is basically negligible. If the design technology is superb, 4-layer PCB can also be done Produce a good board, such as the classic P8P67/P67A-UD3P, a low-cost artifact that allows the CPU to run at 5.6GHz. Of course, if any defects such as the limit High frequency board are infinitely amplified, the number of layers is a little more. There are still improvements in electrical performance. For daily use and non-extremely cold overclocking, there is no need to consider so much.
3. The number of layers has nothing to do with the thickness of the PCB. The impact in this area is micron. The material that has a greater impact on the strength and bending of the PCB is the material of the sandwich and the fiber, and the manufacturing process. At present, it has not been found that the motherboard is naturally slightly bent. It is necessary for Mi to struggle in this regard.
