What is FR-4 Material in PCB Fabrication? The Complete Engineering Guide
FR-4 is the global industry-standard flame-retardant glass-reinforced epoxy laminate for rigid PCB fabrication. This guide explains definition, composition, properties, grades, selection, and why FR-4 PCB is the top choice for engineers and global buyers. What is FR-4 Material? FR-4 (Flame Retardant Type 4) is a NEMA-defined material grade for flame-resistant epoxy laminates. It is not…