source:Industry News release time:2022-10-13 Article author:yu Popular:pcb
To increase the area that can be wired, multilayer Boards use more single - or double-sided wiring boards. With a double lining, two one-way for outer layer or two double lining, two blocks of single outer layer of the printed circuit board, through the positioning system and alternate insulation adhesive materials and conductive graphics interconnection according to design requirement of printed circuit board becomes four, six layer printed circuit board, also known as multilayer printed circuit board. The number of layers of the board does not mean that there are several independent wiring layers. In special cases, empty layers are added to control the thickness of the board. Usually, the number of layers is even and contains the outermost two layers. Most host boards are 4 to 8 layer structures, but the technical theory can be up to 100 layer PCB board. Most large supercomputers use fairly multi-layered mainframe boards, but since these computers can be replaced by clusters of regular computers, super-multi-layered boards have fallen out of use. Because the layers in the PCB are tightly integrated, it is generally not easy to see the actual number, but if you look closely at the host board, you can still see it
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