FR4 substrate material is one of the most widely used materials in the PCB (Printed Circuit Board) industry. It is a composite material made from an epoxy resin and fiberglass cloth, offering excellent electrical insulation and mechanical strength. The “FR” in FR4 stands for “flame retardant,” which refers to its ability to resist fire, making it a reliable and safe choice for electronic applications. FR4 has become the industry standard for PCB manufacturing due to its cost-effectiveness and versatility.
The widespread use of FR4 substrate material in PCB production is primarily due to its balanced properties. It provides good electrical performance at a relatively low cost, making it ideal for mass production of consumer electronics, automotive components, and industrial devices. FR4’s ability to handle various environmental conditions, coupled with its mechanical durability, has made it a go-to material for diverse industries such as telecommunications, automotive electronics, and consumer technology.