Millimeter Wave Sintering of AlN Ceramics for Heat Sink Application
By using 24 GHz millimeter-wave irradiation, full densification of AlN added with Y2O3 was attained at 1700 °C, which is comparable to 28GHz-wave irradiation. Thermal conductivity of a resultant sample exceeded 200 W/mK, which is the highest value in AlN fabricated in non-reducing atmosphere.
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
A. Kishimoto et al., "Millimeter Wave Sintering of AlN Ceramics for Heat Sink Application", Key Engineering Materials, Vols. 421-422, pp. 533-536, 2010