Gary Long

Advanced Print Circuit Board Materials

Printed Circuit Board (PCB) materials refer to a set of dielectric and conductive materials used to form circuit board interconnects. The PCB industry offers a wide array of material options to meet different performance and cost requirements. Copper is the primary conductive material used in PCBs due to its cost and electrical conductivity as well as its stability and ease of processing. The most common and widely recognized class of PCB dielectric materials is FR-4 which describes a group of woven glass reinforced tetra-functional epoxy materials. The continued use and longevity of copper and FR-4 materials is due to a combination of their availability, low cost, processability, and adequate electrical, mechanical and thermal properties.