aluminum nitride(AlN )is a idea heat-eliminating substrates with following properties:
Technical factors of Aluminum Nitride substracts
Property content | Property Index |
DensityKg/m3 | ≥3.30 |
Water absorption(%) | 0 |
Linear expansion conefficient[RT-500](10-6/) | 4.4 |
Bulk resistivityΩ·cm | ≥1014 |
Dielectric constant [1MHz] | 9.0 |
Dissipation fator [1MHz] | 3*10-4 |
Dielectric strength(KV/mm) | 15 |
Flexural strength(MPa) | ≥330 |
Yangs modulus(GPa) | 310~320 |
Thermal conductivity[20](W/m·k) | ≥170 |
Mohs hardness | 8 |
Surface finish Ra(µm) | 0.25~0.5 |
Camber(~/25(length)) | 0.03~0.04 |
Melting point() | 2500 |
color | Dark Gray |
Appearance | Density |