Its basic function is to provide mechanical support to the device. Along with this, it also assists in some important functions like electromagnetic shielding, heat transfer, etc. Based on the need, it can be single-layered, double-layered, or multi-layered. In this fast-moving world, there is a high demand for high speed PCB. In terms of signals and frequencies, High-speed PCB ranges from 50 MHz to as high as 3 GHz. However, during the making of such PCBs, some technical preconditions have to be followed so that high-speed performance can be ensured.