Aluminum Nitride (AlN) Ceramics
Aluminum nitride (AlN) is a new type of ceramic material with excellent comprehensive properties. It has excellent thermal conductivity, reliable electrical insulation, low dielectric constant, and dielectric loss, is non-toxic, and has a thermal expansion coefficient compatible with silicon. The excellent properties of this series are considered to be ideal materials for high-concentration semiconductor substrates and electronic device packaging.
The thermal conductivity of aluminum nitride is 5 to 10 times that of aluminum oxide, a traditional substrate material, and is close to that of beryllium oxide. The thermal conductivity of the Al2O3 substrate is low, and the thermal expansion coefficient is not compatible with Si. Although BeO has excellent comprehensive properties, its high production cost and high toxicity limit its application and promotion. Compared with several other ceramic materials, aluminum nitride ceramics have excellent comprehensive properties and are very suitable for semiconductor substrates and structural packaging. The potential of materials in the electronics industry is enormous.
Aluminum Nitride Ceramic Properties
– Very high thermal conductivity (> 170 W/mK)
– High electrical insulation capacity (>1.1012Ωcm), withstand voltage strength
– Low dielectric constant and low dielectric loss
– Low thermal expansion 4 to 6×10-6K-1 (between 20 and 1000°C)
– Good metallization ability
– Expansion coefficient can be matched with semiconductor silicon wafer
– Mechanical strength is better than alumina.
– Good corrosion resistance to molten metal
– Extremely low impurity content, non-toxic, high purity
– Suitable for casting process
The processing method of aluminum nitride ceramics
-laser processing
-metal processing
-surface grinding
Aluminum Nitride Ceramic Applications
AlN ceramic products are mainly used in high-density hybrid circuits, microwave power devices, semiconductor power devices, power electronic devices, optoelectronic components, semiconductor refrigeration, and other products as high-performance substrate materials and packaging materials.
– Heat dissipation substrates, LED packaging substrates, semiconductor substrates, thin film circuit substrates, power resistor substrates
– Photoelectric
– Dielectric layers in optical storage media
– Electronic substrates, chip carriers, and other fields that require high thermal conductivity;
– Military application
Typical markets
– Crucible for compound semiconductor single-crystal growth
– Substrates for high-frequency surface acoustic wave devices
– Ytterbium Target – High Purity Aluminum Nitride Thin Film
– Infrared and microwave window materials
Edgetech Industries Advanced Ceramics Division is a leading supplier of ceramic materials. We supply aluminum nitride ceramic products with excellent specifications and competitive prices.
Aluminum Nitride Ceramic Products