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AlN is a material with high electric insulation and low dielectric constant.
Standard materials are light-weighted and have a low coefficient of thermal expansion, 7.0 ppm, and high thermal conductivity, 230 W/(m・K).
Sintered Al-SiC is a heatspreader which can be processed in relatively complex shape such as “lid shape”.
The specific gravity is 1/3 of Copper (Cu).