Table 2.
Performance parameters for conventional flexible substrates
| Substrate | PET | PEN | PI | PDMS | PC |
|---|---|---|---|---|---|
| Modulus (MPa) | 2 ~ 4 × 103 | 0.1 ~ 0.5 × 103 | 2.5 × 103 | 1 | 2.0 ~ 2.6 × 103 |
| Tg (°C) | 70 ~ 110 | 120 ~ 155 | 155 ~ 270 | 125 | 145 |
| Tm (°C) | 115 ~ 258 | 269 | 250 ~ 452 | 115 ~ 160 | |
| Water absorption (%) | 0.4 ~ 0.6 | 0.3 ~ 0.4 | 1.3 ~ 3 | > 0.1 | 0.16 ~ 0.35 |
| Work Temp. (°C) | − 50 ~ 150 | < 400 | -45 ~ 200 | -40 ~ 130 | |
| Vol. Res. (Ω.cm) | 1019 | 105 | 1.5 × 1017 | 1.2 × 1014 | 1016 ~ 1018 |
| Thermal expansion coefficient (ppm/°C) | 15 ~ 33 | 20 | 8 ~ 20 | 310 | 75 |
| Density (g/cm3) | 1.39 | 1.36 | 1.35 ~ 1.43 | 1.03 | 1.20 ~ 1.22 |