Measurements of the fluctuations in the tunneling current It through a thin SiO2 insulating layer, by means of an ultralow noise measurement set, showed that after a first time interval in which its power spectral density is stationary and proportional to I2t, an on‐off modulation of It arises, just before oxide breakdown. This bistable noise seems to be related to localized phenomena controlled by trapping‐detrapping processes within the oxide. Two possible mechanisms which could give rise to this bistable noise are discussed.

1.
B. Pellegrini, in Noise in Physical Systems and 1/f Noise (Elsevier, Amsterdam, 1985), p. 419.
2.
P. Olivo, B. Riccò, and B. Neri, 15th European Solid State Device Research Conference, ESSDERC (European Physical Society, Aachen, 1985), Vol. 9H.
3.
A.
Diligenti
,
B.
Neri
, and
P. E.
Bagnoli
,
Electron Device Lett.
11
,
606
(
1985
).
4.
N.
Klein
,
J. Appl. Phys.
53
,
5852
(
1982
).
5.
P.
Olivo
,
B.
Riccò
, and
E.
Sangiorgi
,
J. Appl. Phys.
54
,
5267
(
1983
).
6.
C. T.
Rogers
and
R. A.
Buhrman
,
Phys. Rev. Lett.
53
,
1272
(
1984
).
7.
M. J. Uren, R. S. Kirton, and D. J. Day, in Noise in Physical Systems and 1/f Noise (Elsevier, Amsterdam, 1985), p. 151.
8.
G. E.
Noci
and
B.
Neri
,
Alta Freq.
52
,
89
(
1983
).
9.
K. R.
Farmer
,
C. T.
Rogers
, and
R. A.
Buhrman
,
Phys. Rev. Lett.
58
,
2255
(
1987
).
10.
B.
Ricco
,
M. Ya.
Azbel
, and
M. H.
Brodsky
,
Phys. Rev. Lett.
51
,
1795
(
1983
).
11.
Thao N. Nguyen, P. Olivo, and B. Ricco, Proc. IEEE Int. Rel. Phys. Symp. (IRPS), p. 66 (1987).
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