Test Item | Characteristics | Test condition |
Unaged | Tensile strength | Min. 18MPa | Room temp. |
Elongation | Min. 200% |
Aged | Tensile strength | Min. 11.5MPa | 150℃/7 days |
Elongation | Min. 100% |
Voltage withstand and breakdown Voltage(Unaged) | Withstand 2.5 KV for 1minute and breakdown | Room temp. |
Voltage withstand and breakdown Voltage(Aged) | Withstand 2.5 KV for 1minute and breakdown at least half of unaged breakdown voltage | 150℃/7 days |
Copper corrosion | No corrosion of bare copper | 150℃/7 days |
Copper stability | No sign of degradation Min.Elongation 100% | 150℃/7 days |
Cold bend | No crack | -40℃/4 hrs |
Maximum secant modulus(2%) | 250 MPa | - |
Volume resistivity | Min.1014Ω-cm | - |
Heat shock | No crack | 200℃/4 hrs |