Bulk induced dynamic RON in GaN-on-Si HEMTs is a serious performance limiting instability which remains a problem even in some commercially available power switching devices. Its origin is now reasonably well understood, however until now it has not been possible to simulate it using a realistic epitaxial stack. For the first time we successfully simulate the controlled suppression of bulk dynamic RON by adding a specific model for leakage along threading dislocations. This was undertaken using a commercially available standard TCAD simulator, allowing realistic device optimization in an advanced GaN HEMT design flow.
Martin Kuball
University of Bristol
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16.1 Effect of Manufacture on the Microstructure of GaN-on-Diamond
Dong Liu, University of Oxford, University of BristolDaniel Francis, Akash Systems, San Francisco, CA, USAFirooz Faili, Element Six Technologies, Santa Clara, CAJames Pomeroy, University of BristolDaniel Twitchen, Element Six Ltd.Martin Kuball, University of Bristol -
18.1 Link Between Silicon Nitride Stoichiometry, Vertical Epitaxial Conductivity and Current Collapse in AlGaN/GaN Power Devices
William Waller, University of BristolMark Gajda, NXP SemiconductorsSaurabh Pandey, NXP SemiconductorsJohan Donkers, NXP SemiconductorsDavid Calton, NXP SemiconductorsJeroen Croon, NXP SemiconductorsSerge Karboyan, Nexperia. Manchester, UKMichael Uren, University of BristolMartin Kuball, University of Bristol -
2.2 Interfacial strength and fracture toughness in bonded semiconductor materials
Dong Liu, University of Oxford, University of BristolJianbo Liang, Osaka City University, University of BristolNaoteru Shigekawa, Osaka City UniversityMartin Kuball, University of Bristol -
5.2 Device-to-device coupling via lateral conduction within the epitaxy in C-doped AlGaN/GaN HEMTs
Manikant Singh, University of BristolSerge Karboyan, Nexperia. Manchester, UKKean Boon Lee, University of SheffieldZaffar Zaidi, University of SheffieldPeter Houston, University of Sheffield, SheffieldMartin Kuball, University of Bristol -
Simulation of Leakage Induced Suppression of Bulk Dynamic RON in Power Switching GaN-on-Si HEMTs
Martin Kuball, University of BristolMichael Uren, University of BristolStefano Dalcanale, University of BristolFeiyuan Yang, University of BristolAhmed Nejim, Silvaco EuropeStephen Wilson, Silvaco EuropeDownload Paper -
5a.4 Back Bias Ramping and Photoionization Spectroscopy Analysis of GaN-on-Si HFETs
Alexander Pooth, University of BristolMichael Uren, University of BristolTrevor Martin, IQE Europe, St Mellons, Cardiff, UKMartin Kuball, University of Bristol -
8a.4 GaN-on-Diamond: Robust Mechanical and Thermal Properties
Martin Kuball, University of BristolHuarui Sun, University of BristolDong Liu, University of Oxford, University of BristolJames Pomeroy, University of BristolDaniel Francis, Akash Systems, San Francisco, CA, USAFirooz Faili, Element Six Technologies, Santa Clara, CADaniel Twitchen, Element Six Ltd. -
8b.2 Dynamic-Ron in Small and Large C-doped AlGaN/GaN-on-Si HEMTs
Serge Karboyan, Nexperia. Manchester, UKSara Martin Horcajo, Centre for Device Thermography and Reliability (CDTR), University of BristolJames Pomeroy, University of BristolIndranil Chatterjee, H H Wills Physics Laboratory, University of Bristol, BS8 1TL, United KingdomMichael Uren, University of BristolPeter Moens, ON Semiconductor, Corp. R&DAbishek Banerjee, ON Semiconductor, Oudenaarde 9700, BelgiumMarkus Caesar, ON Semiconductor, Oudenaarde 9700, BelgiumMartin Kuball, University of Bristol -
10b.5 Transient Thermoreflectance for Device Temperature Assessment in Pulsed-Operated GaN-based HEMTs
Sara Martin Horcajo, Centre for Device Thermography and Reliability (CDTR), University of BristolJames Pomeroy, University of BristolBenoƮt Lambert, United Monolithic Semiconductors GermanyHelmut Jung, United Monolithic Semiconductors GmbH, Ulm, GermanyMartin Kuball, University of Bristol -
May 11, 2022 // 4:50pm
12.2 Differences in SiC Wafer Thermal Conductivity from Face-to-Face Dependent on Polishing
Daniel Field, University of BristolMartin Kuball, University of BristolFilip Wach, University of BristolDownload PaperStudent Presentation
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4.4.2023 Origin of Transconductance roll-off in mmWave AlGaN/GaN HEMTs
Terirama Thingujam, University of BristolMichael J Uren, University of BristolNiklas Rorsman, Chalmers University of TechnologyMatthew Smith, University of BristolAndrew Barnes, European Space AgencyMichele Brondi, Akkodis for European Space Agency (ESA)Martin Kuball, University of Bristol -
12.3.2023 Characterization of a Novel Thermal Interface Material based on Nanoparticles for High Power Device Package Assembly
Zeina Abdallah, University of BristolJames Pomeroy, University of BristolNicolas Blasakis, Adamant Composite Ltd.Athanasios Baltopoulos, Adamant Composite Ltd.Antonios Vavouliotis, Adamant Composite Ltd.Martin Kuball, University of Bristol -
15.2.2023 Selective Area Growth of B-Ga2O3
Arpit Nandi, University of BristolIndraneel Sanyal, University of BristolMartin Kuball, University of Bristol -
10.1.3.2024 3D Diamond Growth for GaN Cooling and TBR Reduction
Daniel Francis, Akash Systems, San Francisco, CA, USASai Charan Vanjari, University of BristolXiaoyang Ji, University of BristolTatyana Feygelson, U. S. Naval Research LaboratoryJoseph Spencer, U.S. Naval Research LaboratoryHannah N. Masten, National Research Council Postdoctoral Fellow, Residing at NRLAlan Jacobs, U.S. Naval Research LaboratoryJames Spencer Lundh, National Research Council Postdoctoral Fellow, Residing at NRLMarko Tadjer, U.S. Naval Research LaboratoryTravis J. Anderson, U.S. Naval Research LaboratoryKarl D. Hobart, U.S. Naval Research LaboratoryBradford Pate, Naval Research LaboratoryJames Pomeroy, University of BristolMatthew Smith, University of BristolMartin Kuball, University of BristolLoading...
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10.1.4.2024 Thermal Dissipation Enhancement Using a Metal-Diamond Composite Heat Spreaders in High-Power RF MMICs
Zeina Abdallah, University of BristolJames Pomeroy, University of BristolMartin Kuball, University of BristolLoading...
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11.2.2.2024 Mapping of Local Threshold Voltage in AlGaN/GaN HEMTs
Anjali Anjali, University of BristolJames Pomeroy, University of BristolJr-Tai Chen, SweGaN ABMartin Kuball, University of BristolLoading...
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11.2.3.2024 Time-Dependent Conduction Mechanisms in Superlattice Layers on 200 mm Engineered Substrates
Zequan Chen, University of BristolPeng Huang, University of BristolIndraneel Sanyal, University of BristolMatthew Smith, University of BristolMichael J Uren, University of BristolA. Vohra, imec, Leuven, BelgiumBenoit Bakeroot, imec, Leuven, Belgium and CMST, imec & Ghent University, Ghent, BelgiumMartin Kuball, University of BristolLoading...