FR4 is a NEMA grade designation for glass-reinforced epoxy laminate material. FR4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant. Printed circuit board which used FR4 as core material will be named as FR4 PCB.
|Number of layers||1-12 layer|
|Maximum PCB dimension||1500mm x 600mm|
|Minimum PCB dimension||20mm x 20mm|
|Dimension Tolerance (Outline)||±0.2mm|
|Copper thickness||0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ|
|Outline||Routing, Punching, V-Cut|
|Surface finishing||Immersion Gold, HASL, OSP|