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CIC(Copper-Invar™-Copper) Foil
CIC foil is used for printed circuit boards with ground and power planes and metal cores. The low CTE(coefficient of thermal expansion)over a broad temperature range (-55℃-125℃) is crucial for aerospace and some special fields.
Structure：
| Material | Thickness (%) |
Cu | FeNi36 | Cu |
12.5% | 75% | 12.5% |
Capacity：
Density: 8.33g/cm³
Thermal conductivity: 1.10(xy plane)；0.19(z plane)W cm/cm²℃
Electrical conductivity: 14.5 m/Ω mm² (20℃,soft annealed)
Electrical Resistivity: 0.069 m/Ω mm² (20℃,soft annealed)
Modulus of Elasticity: 140000 N/mm²
CTE（Coefficient of thermal expansion）: 2.4 to 5.6 ppm/℃ annealed condition longitudinal
Specification：
| Item | Unit |
Size |
|||
Thickness |
mm |
0.035 |
0.05 |
0.075 |
>0.1 |
Width |
mm |
1-600 |
1-600 |
1-600 |
1-600 |
Thickness tolerance |
±10% |
±10% |
±10% |
±10% |
|
Width tolerance |
mm |
±1.0 |
±1.0 |
±1.0 |
±1.0 |
Civen Metal is professional as one of the leading cic copper cladded steel foil manufacturers and suppliers in China, bringing you the best quality and effective products. We are equipped with a productive factory. Welcome to contact us.
