PCB Material Design Guide
Material selection is the first step in the design process. Selecting the right material is very important as it can impact the overall performance of the PCB. When dealing with high-speed designs, the material chosen significantly impacts the quality of the signals traversing through the traces. Hence, depending upon the operating signal frequency, materials are categorized as normal speed, medium speed, high speed, and very high speed. The type of materials you choose defines the quality of your end product.