Abstract
The intrinsic parameter fluctuations associated with the discreteness of charge and matter become an important factor when the semiconductor devices are scaled to nanometre dimensions. The interface charge in the recess regions of high electron mobility transistors (HEMTs) has a considerable effect on the overall device performance. We have employed a 3D parallel drift-diffusion device simulator to study the impact of interface charge fluctuations on the I-V characteristics of nanometre HEMTs. For this purpose, two devices have been analysed, a 120 nm gate length pseudomorphic HEMT with an In0.2Ga0.8As channel and a 50 nm gate length InP HEMT with an In0.7Ga0.3As channel.
Similar content being viewed by others
References
Asenov, A., Brown, A.R., Davies, J.H., Kaya, S., Slavcheva, G.: Simulation of intrinsic parameter fluctuations in decananometre and nanometre scale MOSFET’s. IEEE Trans. Electron Dev. 50, 1837–1852 (2003)
Seoane, N., García-Loureiro, A.J., Kalna, K., Asenov, A.: Discrete doping fluctuations in the delta layer of a 50 nm InP HEMT. In Proc. Workshop on Modeling and Simulation of Electron Devices, ed. by A. Campera, G. Fiori, G. Iannaccone, and M. Macucci, 78–79 (Pisa, Italy, 2005)
García-Loureiro, A.J., Kalna, K., Asenov, A.: Efficient three-dimensional parallel simulations of PHEMTs. Int. J. Numer. Model.-Electron. Netw. Device Fields 18, 327–340 (2005)
Markowich, P.A.: The stationary semiconductor device equations. Computational Microelectronics, Springer-Verlag (1986)
University of Tennessee, MPI: A message-passing interface Standard (1995)
Saad, Y.: Iterative methods for sparse linear systems. PWS Publishing Co. (1996)
Galician Supercomputing Centre, http://www.cesga.es
Kalna, K., Roy, S., Asenov, A., Elgaid, K., Thayne, I.: Scaling of pseudomorphic high electron mobility transistors to decanano dimensions. Solid-State Electron. 46, 631–638 (2002)
Kalna, K., Elgaid, K., Thayne, I., Asenov, A.: Modelling of InP HEMTs with high Indium content channels. Proc. Indium Phosphide and Related Materials, 61–65 (2005)
Babiker, S., Asenov, A., Cameron, N., Beaumont, S.P.: A simple approach to include external resistances in the Monte Carlo simulation of MESFETs and HEMTs. IEEE Trans. Electron Devices 43, 2032–2034 (1996)
Seoane, N., García-Loureiro, A.J., Kalna, K., Asenov, A.: Indium content fluctuations in the channel of a 120 nm PHEMT. Proc. 7th Int. Conf. New Phenomena in Mesoscopic Systems/5th Int. Conf. on Surfaces and Interfaces in Mesoscopic Devices, 135–136 (Maui, Hawaii, 2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Seoane, N., García-Loureiro, A.J., Kalna, K. et al. Statistical study of the effect of interface charge fluctuations in HEMTs using a 3D simulator. J Comput Electron 5, 385–388 (2006). https://doi.org/10.1007/s10825-006-0019-4
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10825-006-0019-4