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Non-Gaussian behavior and anticorrelations in ultrathin gate oxides after soft breakdown
Vandewalle, Nicolas; Ausloos, Marcel; Houssa, M. et al.
1999In Applied Physics Letters, 74 (11), p. 1579-1581
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Abstract :
[en] The time dependence of the gate voltage V-G(t) after soft breakdown of metal-oxide-semiconductor capacitors with a 2.4 nm SiO2 layer has been measured. It is found that the V-G(t) fluctuation distributions are non-Gaussian, but can be described by a Levy stable distribution. The long-range correlations in V-G(t) are investigated within the detrended fluctuations analysis. The Hurst exponent is found to be H = 0.25 +/- 0.04 independent of the value of the stress current density J. It is argued that these are universal features of soft breakdown and are due to trapping-detrapping of electrons in and away from the primary percolation path.
Disciplines :
Physics
Author, co-author :
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Houssa, M.
Mertens, P. W.
Heyns, M. M.
Language :
English
Title :
Non-Gaussian behavior and anticorrelations in ultrathin gate oxides after soft breakdown
Publication date :
15 March 1999
Journal title :
Applied Physics Letters
ISSN :
0003-6951
eISSN :
1077-3118
Publisher :
American Institute of Physics, Melville, United States - New York
Volume :
74
Issue :
11
Pages :
1579-1581
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 August 2009

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