Description
RA Copper Foils for FPC
Dimension Range:
Copper Foil thickness from 12~100µm can be supplied for FPC.
Width can be made according to clients’ requirement up to 650mm.
Performances:
High deflection;
Even and smooth foil appearance.
High flexibility and extensibility
Good fatigue resistance
Strong antioxidant properties
Good mechanical properties
Applications:
Flexible Copper Clad Laminate(FCCL), Fine Circuit FPC, LED coated crystal thin film.
Features:
The material has higher extensibility, and has a high bending resistance and no crack.
Table 1:FPC T2 high flex rolled copper foil properties (GB/T5230-2000、IPC-4562-2000)
|
Item |
Unit |
Parameters |
|||||
|
12μm |
18μm |
25μm |
35μm |
70μm |
|||
|
Cu Content |
% |
≥99.99 |
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|
Temper |
|
H |
O、H |
O、H |
O、H |
O、H |
|
|
Surface roughness |
Rz |
μm |
0.4 |
0.5 |
0.7 |
0.74 |
0.76 |
|
Tensile strength |
Normal Temp /23℃ |
N/mm² |
≥430 |
≥450 |
≥450 |
≥460 |
≥460 |
|
High Temp /220℃ |
N/mm² |
≥140 |
≥150 |
≥170 |
≥210 |
≥220 |
|
|
Elongation |
Normal Temp /23℃ |
% |
≥1.5 |
≥3.0 |
≥4.0 |
≥4.2 |
≥4.5 |
|
High Temp /220℃ |
% |
≥8 |
≥10 |
≥18 |
≥28 |
≥30 |
|
|
Fatigue Resistance (annealed) |
% |
65 |
65 |
65 |
65 |
65 |
|
|
Hardness |
HV |
≤50 |
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|
Maximum resistivity |
Ωmm2/m |
0.0171 |
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|
Electrical conductivity |
% |
≥98.3% |
|||||
|
Pinhole test results |
piece/㎡ |
Pinhole area more than 0.5 mm²，0.005 piece/㎡ |
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Note:
- Above figures based on the material temper H.
- Copper Foil has smooth and shiny surface, without any coating..
- Testing method follows our company standard.
