Paper Title:
Time Domain and Frequency Analysis of Random Telegraph Signal and the Contributions of G-R Centres to I-V Instabilities in 4H-SiC MESFETs
  Abstract

Our work is focused on the identification of defects responsible for current fluctuations at the origin of low frequency noise or random telegraphic signals in 4H-SiC MESFETs on semiinsulating (SI) substrates. We show that devices having instabilities have DC output characteristics with random discrete fluctuations of the drain current. The RTS noise parameters analysis (amplitude, high and low state time durations) as a function of temperature and bias voltage provides the signature of the involved traps (activation energy and cross section both for emission and capture). From the power spectral density of the drain current noise (PSD) we have measured the cut-off frequency of a single trap even at very low frequencies (from 0.1 Hz) and we propose that the noise responsible of RTS fluctuations is a generation-recombination noise. Finally, it is shown that the frequency analysis of the random telegraphic signal is a well-suited tool for the study of single defects in very small devices.

  Info
Periodical
Materials Science Forum (Volumes 527-529)
Edited by
Robert P. Devaty, David J. Larkin and Stephen E. Saddow
Pages
1251-1254
DOI
10.4028/www.scientific.net/MSF.527-529.1251
Citation
M. Trabelsi, N. Sghaier, J. M. Bluet, N. Yacoubi, G. Guillot, C. Brylinski, "Time Domain and Frequency Analysis of Random Telegraph Signal and the Contributions of G-R Centres to I-V Instabilities in 4H-SiC MESFETs", Materials Science Forum, Vols. 527-529, pp. 1251-1254, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Li Tian, Hao Wang, Xiu Jian Tang, Zhao Li, Ai Bing Yu
Chapter 5: Advanced Machining and Materials Processing Technology
Abstract:Regrinding of wasted cutting tools can recycle resources and decrease manufacturing costs. Influence of relative tool sharpness and tool...
938
Authors: Yu Xia Xue, Gui Xiang Shen, Ying Zhi Zhang, Li Quan Guo
Chapter 6: Advanced Manufacturing and Industry Engineering, Manufacturing Production, Operations, Quality and Control
Abstract:According to 62 field fault data from a certain type of 8 NC machine tools, maintainability distribution model is established based on the...
494
Authors: Jie Li, Kai Chen, Li Gang Xie
Chapter 4: Communication, Computational Algorithms and Applied Information Technology
Abstract:On the condition that there are no available cooperative peers, this paper proposes self-cooperative network coding. Self-cooperative network...
267