Application: | Structure Ceramic, Industrial Ceramic |
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Type: | Powder |
Material: | Powder |
Transport Package: | 50kg/Drum, 10drums/Pallet |
Trademark: | Suoyi |
Origin: | China |
Samples: |
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Customization: |
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.Key Aluminum Nitride Properties |
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Good dielectric properties | |
High thermal conductivity | |
Low thermal expansion coefficient, close to that of Silicon | |
Non-reactive with normal semiconductor process chemicals and gases | |
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Typical Aluminum Nitride Uses |
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Substrates for electronic packages | |
Heat sinks | |
IC packages | |
Power transistor bases | |
Microwave device packages | |
Material processing kiln furniture | |
Semiconductor processing chamber fixtures and insulators | |
Molten metal handling components |
1. AlN is susceptible to surface oxidization. When this happens, a layer of Aluminum Oxide forms. This does help to protect the material, however, it impacts the thermal conductivity (Alumina is ~30 W/m.K). In oxidizing atmospheres, this happens around 700°C. In inert atmospheres this layer protects the AlN up to ~1350°C. Bulk oxidation will occur at temperatures above this.
2. Coefficient of Thermal Expansion (CTE) describes how the size of an object changes with a change in temperature.
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