Anomalous accelerated negative-bias- instability (NBI) at low drain bias

We observed at very low drain bias an anomalous acceleration of Negative-bias-instability at room temperature, as if the channel temperature has been raised significantly. The channel width and channel length dependent of this acceleration suggest that in addition to the conventional self-heating ef...

Full description

Saved in:
Bibliographic Details
Published in2020 IEEE International Reliability Physics Symposium (IRPS) pp. 1 - 3
Main Author Cheung, K. P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2020
Subjects
Frequency dependence
Hot carriers
Lattices
Modulation
Reliability
Shape
Temperature dependence
Online AccessGet full text

Cover

More Information
Summary:We observed at very low drain bias an anomalous acceleration of Negative-bias-instability at room temperature, as if the channel temperature has been raised significantly. The channel width and channel length dependent of this acceleration suggest that in addition to the conventional self-heating effect that raises the lattice temperature, there is indication that hot holes thermalized at a temperature (Te) higher than the lattice temperature (TL) is the cause of this anomaly. Analysis of the frequency dependent of drain bias modulation, as well as the wave shape dependent of the modulation support this explanation.
ISSN:1938-1891
DOI:10.1109/IRPS45951.2020.9128354