FR4 Printed Circuit Boards
Full Form : Flame Retardant Epoxy Resin and Glass Fabric Composite
Description :FR4 is a good quality material. It has a high dielectric strength which contributes to its electrical insulation properties. The material has a
high strength to weight ratio and is lightweight. It is moisture resistant and has relative temperature resistance as well.
Glass transition temperature/Tg:Typically,130°C
Thermal Conductivity:0.3W
Dielectric Constant:3.9-4.8 across frequencies up to 1 GHz
Avilable Board Thickness :0.35/0.5/0.8/1.0/1.2/1.6/2.0/2.4/3.2mm
Avilable Cu Thickness :18Micron/25Micron/35Micron/70Micron
|
CEM-1 Printed Circuit Boards
Full Form : Composite Epoxy Material type 1
Description :Glass Cloth Base, Epoxy-Resin, Cellulose Core CEM 1 is a base material for printed circuit boards made of laminated paper.Its a good alternative for FR-4 material when cost is a constraint. CEM 1 has a core of paper, impregnated with epoxy and one outer layer of glass fabric. Due to paper this material is not suitable for d/s or plating process.
Glass transition temperature/Tg:Typically 60-90°C
Dielectric Constant:4.2 up to 1 GHz
Avilable Board Thickness :0.8/1.0/1.2/1.6mm
Avilable Cu Thickness :25Micron/35Micron
|