Aluminum Nitride (AlN) possesses a series of excellent properties, with its core advantages including outstanding thermal conductivity, reliable electrical insulation, and a thermal expansion coefficient that matches silicon. In which fields can it be applied?
1、Heat Dissipation Substrates and Electronic Device Packaging
Heat dissipation substrates and electronic device packaging are the primary applications of AlN ceramics. AlN ceramics exhibit exceptional thermal conductivity, a thermal expansion coefficient close to that of silicon, high mechanical strength, good chemical stability, and are environmentally non-toxic. They are regarded as ideal materials for the next generation of heat dissipation substrates and electronic device packaging. They are particularly suitable for hybrid power switch packaging, microwave vacuum tube encapsulation shell materials, and are also an ideal substrate material for large-scale integrated circuits.
2、Structural Ceramics
A common application of structural ceramics is in electrostatic chucks for wafer processing. AlN structural ceramics offer excellent mechanical properties, high hardness, and better toughness than Al₂O₃ ceramics, along with high-temperature and corrosion resistance. Leveraging AlN's heat and erosion resistance, it can be used to manufacture high-temperature corrosion-resistant components such as crucibles, Al evaporation dishes, and semiconductor electrostatic chucks.
3、Functional Materials
AlN can be used to produce high-frequency, high-power devices capable of operating in high-temperature or radiation-prone environments, such as high-power electronic devices and high-density solid-state memory. As one of the third-generation semiconductor materials, AlN boasts a wide bandgap, high thermal conductivity, high resistivity, excellent UV transmittance, and high breakdown field strength.
With a bandgap of 6.2 eV and strong polarization effects, AlN finds applications in mechanical, microelectronic, optical, and surface acoustic wave (SAW) device manufacturing, as well as high-frequency broadband communication. Examples include AlN piezoelectric ceramics and thin films. Additionally, high-purity AlN ceramics are transparent, offering excellent optical properties. Combined with their electrical properties, they can be used to create functional devices such as infrared radomes and sensors.
4、Inert Heat-Resistant Materials
As a heat-resistant material, AlN can be used for crucibles, protective tubes, casting molds, and more. AlN remains stable in non-oxidizing atmospheres up to 2000°C, making it an excellent high-temperature refractory material with strong resistance to molten metal erosion.
5、Heat Exchange Components
AlN ceramics feature high thermal conductivity, low thermal expansion coefficient, and excellent thermal efficiency and thermal shock resistance, making them ideal materials for heat exchange and thermal shock resistance. For example, AlN ceramics can serve as heat exchanger materials for marine gas turbines and heat-resistant components in internal combustion engines. The superior thermal conductivity of AlN materials significantly enhances the heat transfer efficiency of heat exchangers.
6、Filler Materials
AlN exhibits excellent electrical insulation, high thermal conductivity, good dielectric properties, and compatibility with polymer materials, making it an outstanding additive for electronic polymer materials. It can be used as a filler for thermal interface materials (TIM) and flexible copper-clad laminate (FCCL) dielectric layers, widely applied as a thermal transfer medium in electronic devices to improve efficiency. Examples include filling gaps between CPUs and heat sinks, or acting as a thermal transfer medium in the fine gaps between high-power transistors, thyristors, and substrates.
About Xiamen Juci Technology
Xiamen Juci Technology is the leading AlN powder manufacture in China. Our AlN products feature excellent thermal conductivity, electrical insulation, and mechanical strength, widely used in electronic packaging, semiconductors, LED heat dissipation, and other fields. Juci Technology specializes in manufacturing high-performance aluminum nitride heat sinks and aluminum nitride ceramic substrates, providing leading solutions for electronic heat dissipation.
Media Contact:
Xiamen Juci Technology Co., Ltd.
Phone: +86 592 7080230
Email: miki_huang@chinajuci.com
Website: www.jucialnglobal.com
