1. J.W. Jang, D.R. Frear, T.Y. Lee, and K.N. Tu, J. Appl. Phys. 88, 6359 (2000).
2. S.K. Kang et al., Proc. 51st Electron. Comp. and Technology Conf. (Piscataway, NJ: IEEE, 2001), pp. 448–454.
3. K. Zeng, V. Vuorinen, and J.K. Kivilahti, Proc. 51st Electron. Comp. Technology Conf. (Piscataway, NJ: IEEE, 2001), pp. 693–698.
4. K.Y. Lee, M. Li, D.R. Olsen, and W.T. Chen, Proc. 51st Electron. Comp. Technology Conf. (Piscataway, NJ: IEEE, 2001), pp. 478–485.
5. A. Zribi, L. Zavalij, P. Borgesen, A. Primavera, G. Westby, and E.J. Cotts, Proc. 51st Electron. Comp. Technology Conf. (Piscataway, NJ: IEEE, 2001), pp. 687–692.