Aluminum nitride is an important inorganic non-metallic material. It not only has the characteristics of ceramic insulation, low expansion, high elastic modulus, etc., but also has the same high thermal conductivity as copper and aluminum (thermal conductivity is 7~10 times that of aluminum oxide). It is a key material in high-end equipment in semiconductor, electric vacuum and other fields, especially in national defense weapon systems, aerospace, electric rail transit, new energy vehicles, high-power LED lighting, communication base stations Aluminum nitride can be used for power devices in power transmission equipment, industrial control equipment and other fields. The aluminum nitride powder of Xiamen Juci Technology has the characteristics of high purity, extremely low metal impurity content, and strong batch stability. Its annual production capacity is 700t. At present, it has been applied in a large number to tap casting electronic ceramic substrates.