Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes

In this paper, a methodology is proposed for studying the current collapse effects of Gallium Nitride (GaN) power diodes and the consequences on the dynamic on-resistance (RON). Indeed, the growing interest of GaN based, high frequency power conversion requires an accurate characterization and a dee...

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Main Authors: Martin Doublet, Nicolas Defrance, Etienne Okada, Loris Pace, Thierry Duquesne, Bouyssou Emilien, Arnaud Yvon, Nadir Idir, Jean-Claude De Jaeger
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Electronics
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Online Access:https://www.mdpi.com/2079-9292/12/9/2007
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author Martin Doublet
Nicolas Defrance
Etienne Okada
Loris Pace
Thierry Duquesne
Bouyssou Emilien
Arnaud Yvon
Nadir Idir
Jean-Claude De Jaeger
author_facet Martin Doublet
Nicolas Defrance
Etienne Okada
Loris Pace
Thierry Duquesne
Bouyssou Emilien
Arnaud Yvon
Nadir Idir
Jean-Claude De Jaeger
author_sort Martin Doublet
collection DOAJ
description In this paper, a methodology is proposed for studying the current collapse effects of Gallium Nitride (GaN) power diodes and the consequences on the dynamic on-resistance (RON). Indeed, the growing interest of GaN based, high frequency power conversion requires an accurate characterization and a deep understanding of the device’s behaviour before any development of power converters. This study can ultimately be used to model observed trap effects and, thus, improve the equivalent electrical model. Using an in-house circuit and a specific experimental setup, a current-collapse phenomenon inherent to gallium nitride semiconductor is studied on planar 650 V—6 A GaN diodes by applying high voltage stresses over a wide range of temperatures. With this method, useful data on activation energy and capture cross section of electrical defects linked to dynamic RON are extracted. Finally, the origins of such defects are discussed and attributed to carbon-related defects.
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spelling doaj.art-4233e8fb72d045c6969291f0d305fcd82023-11-17T22:47:26ZengMDPI AGElectronics2079-92922023-04-01129200710.3390/electronics12092007Investigation of Current Collapse Mechanism on AlGaN/GaN Power DiodesMartin Doublet0Nicolas Defrance1Etienne Okada2Loris Pace3Thierry Duquesne4Bouyssou Emilien5Arnaud Yvon6Nadir Idir7Jean-Claude De Jaeger8Univ. Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, FranceUniv. Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, FranceUniv. Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, FranceUniv. Lyon, Ecole Centrale de Lyon, INSA Lyon, Université Claude Bernard Lyon 1, CNRS, Ampère, UMR5005, F-69130 Ecully, FranceUniv. Lille, Arts et Métiers, Institute of Technology, Centrale Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceSTMicroelectronics, F-37000 Tours, FranceSTMicroelectronics, F-37000 Tours, FranceUniv. Lille, Arts et Métiers, Institute of Technology, Centrale Lille, Junia, ULR 2697-L2EP, F-59000 Lille, FranceUniv. Lille, CNRS, Centrale Lille, University Polytechnique Hauts-de-France, UMR 8520-IEMN, F-59000 Lille, FranceIn this paper, a methodology is proposed for studying the current collapse effects of Gallium Nitride (GaN) power diodes and the consequences on the dynamic on-resistance (RON). Indeed, the growing interest of GaN based, high frequency power conversion requires an accurate characterization and a deep understanding of the device’s behaviour before any development of power converters. This study can ultimately be used to model observed trap effects and, thus, improve the equivalent electrical model. Using an in-house circuit and a specific experimental setup, a current-collapse phenomenon inherent to gallium nitride semiconductor is studied on planar 650 V—6 A GaN diodes by applying high voltage stresses over a wide range of temperatures. With this method, useful data on activation energy and capture cross section of electrical defects linked to dynamic RON are extracted. Finally, the origins of such defects are discussed and attributed to carbon-related defects.https://www.mdpi.com/2079-9292/12/9/2007gallium nitride (GaN)diodedynamic on-resistance (R<sub>ON</sub>)current collapsepower electronicsArrhenius
spellingShingle Martin Doublet
Nicolas Defrance
Etienne Okada
Loris Pace
Thierry Duquesne
Bouyssou Emilien
Arnaud Yvon
Nadir Idir
Jean-Claude De Jaeger
Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
Electronics
gallium nitride (GaN)
diode
dynamic on-resistance (R<sub>ON</sub>)
current collapse
power electronics
Arrhenius
title Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
title_full Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
title_fullStr Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
title_full_unstemmed Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
title_short Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes
title_sort investigation of current collapse mechanism on algan gan power diodes
topic gallium nitride (GaN)
diode
dynamic on-resistance (R<sub>ON</sub>)
current collapse
power electronics
Arrhenius
url https://www.mdpi.com/2079-9292/12/9/2007
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