How Does FR4 Material Compare to Others?
FR4 Material Defined FR4 is a common grade, used for most PCBs (Printed Circuit Boards), of Composite Material composed of woven Fiberglass Cloth with an Epoxy Resin Binder that is flame resistant (self-extinguishing). Its most common application is in Printed Circuit Boards (PCBs)findViewById The FR in FR4 stands for flame retardant and the number 4 …