Title

Design optimization of stacked layer dielectrics for minimum gate leakage currents

Authors

Authors

J. Zhang; J. S. Yuan; Y. Ma;A. S. Oates

Abbreviated Journal Title

Solid-State Electron.

Keywords

Engineering, Electrical & Electronic; Physics, Applied; Physics, ; Condensed Matter

Abstract

An effective model to evaluate the leakage currents for different stacked gates deep submicron MOS transistors is presented. For a given equivalent oxide thickness of a stacked gate, the gate leakage current decreases with an increase of high-k dielectric thickness or a decrease of interlayer thickness. Turning points at high gate biases of the I-V curves are observed for Si3N4SiO2, Ta2O5/SiO2, Ta2O5/SiO2-yNy, Ta2O5/Si3N4, and TiO2/SiO2 stacked gates except for Al2O3/SiO2 structure, Design optimization fur the stacked gate architecture to obtain the minimum gate leakage current is evaluated. (C) 2000 Elsevier Science Ltd. All rights reserved.

Journal Title

Solid-State Electronics

Volume

44

Issue/Number

12

Publication Date

1-1-2000

Document Type

Article

Language

English

First Page

2165

Last Page

2170

WOS Identifier

WOS:000166666000011

ISSN

0038-1101

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