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Self-Consistent Mosfet Tunneling Simulations—Trends in the Gate and Substrate Currents and the Drain-Current Turnaround Effect with Oxide Scaling

Published online by Cambridge University Press:  10 February 2011

H. Z. Massoud ,
J. P. Shiely  and
A. Shanware
H. Z. Massoud
Affiliation:
Semiconductor Research Laboratory, Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708-0291
J. P. Shiely
Affiliation:
Semiconductor Research Laboratory, Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708-0291
A. Shanware
Affiliation:
Semiconductor Research Laboratory, Department of Electrical and Computer Engineering, Duke University, Durham, NC, 27708-0291
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Abstract

This paper discusses the simulation needs of deep-submicron MOSFETs beyond the 100 nm technology generation where the tunneling of carriers through the gate dielectric will become a vital issue in device design, optimization, and characterization. We present simulation results of Tunnel-PISCES, a MOSFET device simulator where tunneling in the gate dielectric is implemented in a self-consistent manner with the device equations in the substrate. Simulation results of trends in the gate, substrate, and drain currents with oxide scaling are presented. The drain-current turnaround effect is explained by considering the role of the voltage drop across the polysilicon gate resistance in determining the device gate tunneling conditions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 567: Symposium R – Ultrathin SiO2 and Higg-K Materials for ULSI Gate Dielectrics , 1999 , 227
Copyright
Copyright © Materials Research Society 1999

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References

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