What is the thermal conductivity of AlN substrate?

The thermal conductivity of aluminum nitride (AlN) is relatively high compared to many other non-metallic materials. AlN typically has a thermal conductivity in the range of approximately 150 to 320 watts per meter-kelvin (W/m·K). However, the exact thermal conductivity of AlN can vary based on factors such as material quality, temperature, and crystallographic orientation.

The high thermal conductivity of AlN is one of its key advantages, making it a popular choice for substrates and heat-spreading applications in the electronics and semiconductor industries. Its ability to efficiently conduct heat away from electronic devices is important for thermal management, especially in high-power and high-temperature applications. The excellent thermal conductivity of AlN helps in reducing the risk of overheating and improving the overall performance and reliability of electronic components.