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Aluminium Nitride
Aluminium Nitride is specifically of interest for its very high thermal conductivity in combination with its effective electrical insulation.
It can be produced by dry press and sinter or by hot pressing with appropriate sintering aids. The material suffers surface oxidation above 700°C. Applications are principally in the electronics area where heat removal is important.
Typical Aluminium Nitride characteristics include:
- Very good thermal conductivity
- Thermal expansion coefficient similar to that of Silicon
- Good dielectric properties
- Good corrosion resistance
- Stability in semiconductor processing atmospheres
Typical Aluminium Nitride applications include:
- Heat sinks
- Electronic substrates
- IC packages
- Power transistor bases
- Microwave device packages
