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Aluminum Nitride Substrates
Edgetech Industries, advanced ceramics division is a leading supplier of aluminum nitride ceramic materials. We supply aluminum nitride substrates for semiconductors.
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 coefficient of thermal expansion compatible with silicon. The series of excellent characteristics are considered to be the ideal materials for highly concentrated semiconductor substrates and electronic device packaging.
Property for Aluminum Nitride Substrates
| Item | Unit | AlN |
| Physical Property | ||
| Color | \ | Grayish white, Beige |
| Volume Density | g/cm3 | 3.3 |
| Surface roughness | um | 0.2-0.85 |
| Warpage | (length ‰) | ≤3 |
| Thermal properties | ||
| Thermal conductivity | W/(m·K) | 170-230 |
| Thermal expansivity | x 10-6/°C (20℃-800℃) | 4-6 |
| Mechanical properties | ||
| Flexural strength | MPa | ≥300 |
| Electrical properties | ||
| Dielectric constant | 1MHZ, 25℃ | 8-9 |
| Dielectric strength | KV/mm | ≥15 |
| Volume resistivity | Ω·cm | ≥1014 |
Advantages of Aluminum Nitride Ceramic -Very high thermal conductivity (170 -230 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 capacity -Expansion coefficient can be matched with semiconductor silicon wafer -Better mechanical strength than alumina. -Good corrosion resistance to molten metal -Minimum impurity content, non-toxic, high purity -Suitable for the casting process
Aluminum Nitride Substrates 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 sink substrate, LED package substrate, semiconductor substrate, thin film circuit substrate, power resistor substrate -Opto-electronics -Dielectric layers in optical storage media -Electronic substrates, chip carriers where high thermal conductivity is essential； -Military applications
Packing
Our Aluminum Nitride Substrate is carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition.