1. Information on http://www8.cao.go.jp/cstp/panhu/sip_english/14-17.pdf.
2. M. Nakano, K. Akatsu, in Proceedings of the SICE Annual Conf. 2016, Sep. 2016, pp.1171-1174.
3. D. Kusano, G. Tanabe, Y. Uchida, H. Hyuga, Y. Zhou, K. Hirao, in Proceedings of PCIM Europe 2016 (May 10-12, 2016, Nuremberg, Germany), pp.64-71.
4. Information on http://www.allied-material.co.jp/english/_/products/tungsten/heatsink/properties /t52nn.pdf.
5. N. Terasaki, Y. Nagatomo, T. Nagase, Y. Kuromitsu, in Proceedings of CIPS 2014 (Feb. 25-27, 2016, Nuremberg, Germany).