IS680 PCB is a kind of high-frequency material developed by Isola company. It uses FR4 and hydrocarbon perfectly, with stable performance, low loss and easy processing
In addition to the requirement for uniform thickness of the plating layer for drilling, backplane designers generally have different requirements for the uniformity of copper on the surface of the outer layer. Some designs etch few signal lines on the outer layer. The following is about Megtron6 step PCB related, I hope to help you better understand Megtron6 step PCB.