Skip to Main content Skip to Navigation
Conference papers

Understanding traps locations and impact on AlGaN/GaN HEMT by LFN noise & transient measurements, and T-CAD simulations

Abstract : Nitride technologies are widely used for high frequency and high power electronics, and raise a growing interest for robust low noise receivers. However, the stability of DC and RF performances are difficult to achieve, at a cost of technological trade-offs. Among the problems not totally mastered, traps and charges located in the active regions of the transistor induce a large variety of electrical behaviours; some traps are not harmful as they do not affect the transistor performances, some can impact the signal integrity or can raise reliability problems. The paper addresses a method based on low frequency noise (LFN) and random telegraph noise (RTN) measurements crossed with transient measurements and T-CAD simulations to locate the defects, and to evaluate their actual impact on the device integrity. This study is realized on virgin and stressed AlGaN/GaN High Electron Mobility Transistors (HEMT). Charges under the gated zone and at the AlGaN/GaN-passivation interface are identified by noise measurements and by T-CAD simulations.
Complete list of metadatas

Cited literature [11 references]  Display  Hide  Download

https://hal.laas.fr/hal-02087930
Contributor : Jean-Guy Tartarin <>
Submitted on : Tuesday, April 2, 2019 - 2:22:07 PM
Last modification on : Friday, January 10, 2020 - 9:10:13 PM
Long-term archiving on: : Wednesday, July 3, 2019 - 3:46:23 PM

File

FINAL_TARTARIN_ICNF_PID4733385...
Files produced by the author(s)

Identifiers

Citation

Jean-Guy Tartarin, Damien Saugnon, Oana Lazar, Guillaume Maillot, Laurent Bary. Understanding traps locations and impact on AlGaN/GaN HEMT by LFN noise & transient measurements, and T-CAD simulations. 2017 International Conference on Noise and Fluctuations (ICNF), Jun 2017, Vilnius, Lithuania. pp.1-4, ⟨10.1109/ICNF.2017.7985988⟩. ⟨hal-02087930⟩

Share

Metrics

Record views

113

Files downloads

302