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Aluminum Nitride Sheet
AlN Ceramic sheet
Edgetech Industries, advanced ceramics division is a leading supplier of aluminum nitride sheets.
Aluminum nitride (AlN) is a ceramic material with high thermal conductivity and electrical insulation. It is often used in electrical devices to resist corrosion from molten metals. In the semiconductor industry, aluminum nitride is also a suitable replacement for beryllium oxide (BeO) because it is non-toxic and has similar properties to silicon wafer materials. Its coefficient of thermal expansion is similar to that of silicon, it has good light transmission properties and has high mechanical strength.
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
AlN Sheet Applications
Aluminum nitride (AlN) ceramics are known for their high thermal conductivity and excellent electrical insulation properties. They are suitable for thermal management and electrical applications that require high thermal conductivity and electrical insulation.
-Semiconductor devices such as ceramic trays and etch masks
-Chip cooling and support
-Aluminum nitride ceramic substrates for OLEDs
-Wafer handling and processing
-Microelectronic devices, including substrates, insulators and chip carriers
-Packaging for microwave devices
-Power electronics, including electrical insulation materials, heat sinks, rectifiers and power modules
-LED packaging and power resistors
Packing
Our Aluminum Nitride Sheet is carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition.