Table 2
Material properties used in the simulations.
| Materials | Density (kg/m3) |
Poisson's ratio |
CTE (10−6/°K) |
Young's modulus (MPa) |
| Polycarbonate (PC) | 1200 | 0.38 | 67 | * |
| TPU | 1080 | 0.38 | 200 | # |
| Connector (Sn-Cu) | 7630 | 0.36 | 20 | 100 000 |
| Solder (Sn-Ag-Cu) | 7000 | 0.35 | 21 | 45 000 |
| Silicon | 2329 | 0.28 | 2.6 | 170 000 |
| Back sheet | 1000 | 0.42 | 150 | 1210 |
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