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Material Properties
| MATERIAL | DIELECTRIC CONSTANT | DENSITY (g/cm3) | THERMAL CONDUCTIVITY (at 25°C)(W/mK) | CTE (ppm/C 25-150°C) |
| Aluminum Oxide | 9-9.8 | 3.98 | 20-30 | 6.5 |
| Aluminum Nitride | 8.9 | 3.30 | 170-200 | 4.5 |
| Beryllium Oxide | 6.7 | 3.90 | 250 | 7.6 |
| Aluminum | 1.6-1.8 | 2.70 | 238 | 23.6 |
| Copper | close to infinite | 8.96 | 398 | 17.8 |
| Copper Tungsten (10-20% copper) | | 15.7-17 | 180-200 | 6.5-8.3 |
