Aluminum nitride (AlN) ceramic substrates are the preferred choice for high-power electronics and advanced semiconductor applications. AlN substrates stand out among ceramic materials for their exceptional combination of high thermal conductivity and excellent electrical insulation, making them ideal for high-density power modules and LED packaging where rapid heat dissipation is critical.

Key Properties:

• High thermal conductivity (170~ W/m·K), far superior to alumina

• Excellent electrical insulation (high dielectric strength)

• Coefficient of thermal expansion (CTE) closely matched to Si and GaAs, minimizing thermal stress

• Low dielectric constant and low dielectric loss