The Surface-Potential-Based model HiSIM-SOI and its Application to 1/f Noise in Fully-Depleted SOI-MOSFETs
N. Sadachika, M.Md. Yusoff, Y. Uetsuji, M.H. Bhuyan, D. Kitamaru, H.J. Mattausch, M. Miura-Mattausch, L. Weiss, U. Feldmann and S. Baba
Graduate School of Advanced Sciences of Matter, Hiroshima University, JP
SOI MOSFET, 1/f noise, circuit simulation model, surface potential
Fully-depleted SOI-MOSFET model HiSIM-SOI for circuit simulation is developed. HiSIM-SOI solves surface potentials at all three SOI-surfaces along the depth direction self-consistently. Besides comparison to measured I-V characteristics, the model is verified with 1/f noise analysis, sensitive to the carrier concentration and distribution along the channel. The carrier concentration increase of SOI-MOSFET results in enhanced 1/f noise in comparison with the bulk-MOSFET. Our results predict that further reduction of the silicon-layer thickness for achieving higher driving capability will cause unavoidable enhancement of the noise.
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Nanotech 2005 Conference Program Abstract