Table 3 Change in peel strength of random and block copolymers during photo irradiation using LED lamp
Code | Irradiation conditions | Post baking conditions | Peel strength (N/20 mm) | Relative valuea | Failure mode | ||
|---|---|---|---|---|---|---|---|
Intensity (mW/cm2) | Time (min) | Dose (mJ/cm2) | |||||
R1 | 0 | 0 | 0 | None | 2.65 ± 0.12 | 1 | PET interface |
4 | 3.0 | 720 | None | 0.035 ± 0.012 | 0.01 | SUS interface and cohesive (9/1) | |
B1 | 0 | 0 | 0 | None | 3.06 ± 0.06 | 1 | Cohesive |
2 | 0.5 | 60 | None | 0.42 ± 0.11 | 0.13 | Cohesive | |
4 | 0.5 | 120 | None | 0.042 ± 0.034 | <0.1 | PET interface | |
4 | 1.0 | 240 | None | 0.010 ± 0.003 | <0.01 | SUS and PET interfaces (5/5) | |
4 | 3.0 | 720 | None | 0.0011 ± 0.00056 | <0.01 | SUS and PET interfaces (8/2) | |
B2 | 0 | 0 | 0 | None | 3.80 ± 1.27 | 1 | SUS interface |
2 | 0.5 | 60 | None | 3.85 ± 0.06 | 1.0 | SUS interface and cohesive (5/5) | |
4 | 0.5 | 120 | None | 2.07 ± 0.16 | 0.54 | SUS and PET interfaces (4/6) | |
4 | 1.0 | 240 | None | 0.04 ± 0.008 | <0.1 | SUS and PET interfaces (9/1) | |
4 | 3.0 | 720 | None | 0.11 ± 0.01 | <0.1 | PET interface | |
2 | 0.5 | 60 | 3 min/100 °C | 0.079 ± 0.001 | <0.1 | PET interface | |
4 | 0.5 | 120 | 3 min/100 °C | 0.057 ± 0.06 | <0.1 | PET interface | |