An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology
Presently, growing attention is being given to the analysis of the impact of the ambient temperature on the GaN HEMT performance. The present article is aimed at investigating both DC and microwave characteristics of a GaN-based HEMT versus the ambient temperature using measured data, an equivalent-...
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doaj-cc0f73729dfb4b439b0243bb21892a782021-05-31T23:47:47ZengMDPI AGMicromachines2072-666X2021-05-011254954910.3390/mi12050549An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN TechnologyMohammad Abdul Alim0Christophe Gaquiere1Giovanni Crupi2Department of Electrical and Electronic Engineering, University of Chittagong, Chittagong 4331, BangladeshInstitute of Electronic, Microelectronic and Nanotechnology (IEMN), The University of Lille, F-59000 Lille, FranceDepartment of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98125 Messina, ItalyPresently, growing attention is being given to the analysis of the impact of the ambient temperature on the GaN HEMT performance. The present article is aimed at investigating both DC and microwave characteristics of a GaN-based HEMT versus the ambient temperature using measured data, an equivalent-circuit model, and a sensitivity-based analysis. The tested device is a 0.15-μm ultra-short gate-length AlGaN/GaN HEMT with a gate width of 200 μm. The interdigitated layout of this device is based on four fingers, each with a length of 50 μm. The scattering parameters are measured from 45 MHz to 50 GHz with the ambient temperature varied from −40 °C to 150 °C. A systematic study of the temperature-dependent performance is carried out by means of a sensitivity-based analysis. The achieved findings show that by the heating the transistor, the DC and microwave performance are degraded, due to the degradation in the electron transport properties.https://www.mdpi.com/2072-666X/12/5/549gallium nitride (GaN)high electron-mobility transistor (HEMT)equivalent-circuit modelingmicrowave frequencyscattering-parameter measurementstemperature |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohammad Abdul Alim Christophe Gaquiere Giovanni Crupi |
spellingShingle |
Mohammad Abdul Alim Christophe Gaquiere Giovanni Crupi An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology Micromachines gallium nitride (GaN) high electron-mobility transistor (HEMT) equivalent-circuit modeling microwave frequency scattering-parameter measurements temperature |
author_facet |
Mohammad Abdul Alim Christophe Gaquiere Giovanni Crupi |
author_sort |
Mohammad Abdul Alim |
title |
An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology |
title_short |
An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology |
title_full |
An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology |
title_fullStr |
An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology |
title_full_unstemmed |
An Experimental and Systematic Insight into the Temperature Sensitivity for a 0.15-µm Gate-Length HEMT Based on the GaN Technology |
title_sort |
experimental and systematic insight into the temperature sensitivity for a 0.15-µm gate-length hemt based on the gan technology |
publisher |
MDPI AG |
series |
Micromachines |
issn |
2072-666X |
publishDate |
2021-05-01 |
description |
Presently, growing attention is being given to the analysis of the impact of the ambient temperature on the GaN HEMT performance. The present article is aimed at investigating both DC and microwave characteristics of a GaN-based HEMT versus the ambient temperature using measured data, an equivalent-circuit model, and a sensitivity-based analysis. The tested device is a 0.15-μm ultra-short gate-length AlGaN/GaN HEMT with a gate width of 200 μm. The interdigitated layout of this device is based on four fingers, each with a length of 50 μm. The scattering parameters are measured from 45 MHz to 50 GHz with the ambient temperature varied from −40 °C to 150 °C. A systematic study of the temperature-dependent performance is carried out by means of a sensitivity-based analysis. The achieved findings show that by the heating the transistor, the DC and microwave performance are degraded, due to the degradation in the electron transport properties. |
topic |
gallium nitride (GaN) high electron-mobility transistor (HEMT) equivalent-circuit modeling microwave frequency scattering-parameter measurements temperature |
url |
https://www.mdpi.com/2072-666X/12/5/549 |
work_keys_str_mv |
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