Modeling of leakage currents in high-κ dielectrics: Three-dimensional approach via kinetic Monte Carlo

作者: Gunther Jegert , Alfred Kersch , Wenke Weinreich , Uwe Schröder , Paolo Lugli

DOI: 10.1063/1.3310065

关键词:

摘要: We report on a simulation algorithm, based kinetic Monte Carlo techniques, that allows us to investigate transport through high-permittivity dielectrics. In the example of TiN/ZrO2/TiN capacitor structures, using best-estimate physical parameters, we have identified dominant mechanisms. Comparison with experimental data reveals be dominated by Poole–Frenkel emission from donorlike trap states at low fields and trap-assisted tunneling high fields.

参考文章(27)
Mona Zebarjadi, Ceyhun Bulutay, Keivan Esfarjani, Ali Shakouri, Monte Carlo simulation of electron transport in degenerate and inhomogeneous semiconductors Applied Physics Letters. ,vol. 90, pp. 092111- ,(2007) , 10.1063/1.2709999
W. Weinreich, R. Reiche, M. Lemberger, G. Jegert, J. Müller, L. Wilde, S. Teichert, J. Heitmann, E. Erben, L. Oberbeck, U. Schröder, A.J. Bauer, H. Ryssel, Impact of interface variations on J-V and C-V polarity asymmetry of MIM capacitors with amorphous and crystalline Zr(1-x)AlxO2 films Microelectronic Engineering. ,vol. 86, pp. 1826- 1829 ,(2009) , 10.1016/J.MEE.2009.03.070
X. R. Cheng, Y. C. Cheng, B. Y. Liu, Nitridation‐enhanced conductivity behavior and current transport mechanism in thin thermally nitrided SiO2 Journal of Applied Physics. ,vol. 63, pp. 797- 802 ,(1988) , 10.1063/1.340072
J. E. Medvedeva, A. J. Freeman, C. B. Geller, D. M. Rishel, Screened-exchange determination of the electronic properties of monoclinic, tetragonal, and cubic zirconia Physical Review B. ,vol. 76, pp. 235115- ,(2007) , 10.1103/PHYSREVB.76.235115
B K Ridley, Multiphonon, non-radiative transition rate for electrons in semiconductors and insulators Journal of Physics C: Solid State Physics. ,vol. 11, pp. 2323- 2341 ,(1978) , 10.1088/0022-3719/11/11/023
Z. A. Weinberg, On tunneling in metal‐oxide‐silicon structures Journal of Applied Physics. ,vol. 53, pp. 5052- 5056 ,(1982) , 10.1063/1.331336
Ka Xiong, John Robertson, Geoffrey Pourtois, Jasmine Pétry, Markus Müller, Impact of incorporated Al on the TiN/HfO2 interface effective work function Journal of Applied Physics. ,vol. 104, pp. 074501- ,(2008) , 10.1063/1.2986158
Doo Seok Jeong, Cheol Seong Hwang, Tunneling-assisted Poole-Frenkel conduction mechanism in HfO2 thin films Journal of Applied Physics. ,vol. 98, pp. 113701- ,(2005) , 10.1063/1.2135895
John Robertson, Band offsets of wide-band-gap oxides and implications for future electronic devices Journal of Vacuum Science & Technology B. ,vol. 18, pp. 1785- 1791 ,(2000) , 10.1116/1.591472