Dr. Victor Veliadis is Executive Director & CTO of PowerAmerica, a member-driven Manufacturing USA Institute of industry, universities, and national labs accelerating the commercialization of energy efficient silicon carbide and gallium nitride power semiconductor chips and electronics. At PowerAmerica, he has managed a budget of $156 million that he strategically allocated to over 210 industrial and University projects to catalyze SiC and GaN semiconductor and power electronics manufacturing, workforce development, and job creation. His PowerAmerica educational activities have trained 430 full-time University students in collaborative industry/University WBG projects, and engaged over 7000 attendees in tutorials, short courses, and webinars. In 2023, Dr. Veliadis won a $64M U.S. Department of Energy PowerAmerica renewal to further catalyze WBG power technologies. He is also PI of the $5 million NIST “Building pandemic resilience in Native American communities'' electrification and emergency management project. Dr. Veliadis is an ECE Professor at NC State University, and an IEEE Fellow and EDS Distinguished Lecturer. He has 27 issued U.S. patents, 12 book chapters, and 163 peer-reviewed publications to his credit. He is a sought-after speaker with over 180 keynote/tutorial/invited presentations including keynotes at ICSCRM, APEC, ECCE, ECPE, IFWS, and WiPDA. Prior to entering academia and taking an executive position at Power America in 2016, Dr. Veliadis spent 21 years post-PhD in the semiconductor industry where his work included design, fabrication, and testing of SiC devices, GaN devices for military radar systems, and financial and operations management of a commercial semiconductor fab. He has received military training in the Army Infantry and is a third-degree black belt in Shotokan karate. Dr. Veliadis has a Ph.D. degree in Electrical Engineering from John Hopkins University (1995).
Works (116)
2024 journal article
A SiC Based Two-Stage Pulsed Power Converter System for Laser Diode Driving and Other Pulsed Current Applications
IEEE Open Journal of Industry Applications, 5, 455–468.

2024 conference paper
Accelerating WBG Power Semiconductor Technology Commercialization
47th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe and 18th Expert Evaluation and Control of Compound Semiconductor Materials and Technologies (WOCSDICE-EXMATEC 2024). Presented at the 47th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe and 18th Expert Evaluation and Control of Compound Semiconductor Materials and Technologies (WOCSDICE-EXMATEC 2024), Heraklion Crete, Greece.
2024 article
Design of Asynchronous Microgrid Power Conditioning System with Gen-3 10 kV SiC MOSFETs for MV Grid Interconnection
2024 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC, pp. 514–521.

2024 conference paper
Experimental Study Based Switching Sequence for Reduction of Peak Voltage Transients in GaN-based 3L-ANPC Inverter
2024 IEEE Applied Power Electronics Conference and Exposition (APEC), 1235–1241.

2024 chapter
Innovations and Advancements
In M. Di Paolo Emilio (Ed.), SiC Technology: Materials, Manufacturing, Devices and Design for Power Conversion (pp. 271–286).
Ed(s): M. Di Paolo Emilio
2024 chapter book
Manufacturing Processes
2024 chapter
Overview of Silicon Carbide
In M. Di Paolo Emilio (Ed.), SiC Technology: Materials, Manufacturing, Devices and Design for Power Conversion (pp. 1–23).
Ed(s): M. Di Paolo Emilio
2024 journal article
SiC Power Displacing silicon in several high-volume power applications
Semi Interface Magazine: Material Engineering and Interface Optimization, (1), 16–19.
2024 chapter book
SiC Technology
2024 journal article
Switching Modes for Reduction of Peak Voltage Transients in GaN-Based Three Level ANPC Inverter
IEEE Transactions on Industry Applications, 60(6), 9066–9079.

2023 conference paper
A Feedforward-Based Harmonic Current Minimization Method for Six-Phase Permanent Magnet Synchronous Machine Drives
2023 IEEE Energy Conversion Congress and Exposition (ECCE), 5290–5296.

2023 conference paper
Barriers to SiC Power Semiconductor Device Commercialization
Pacific Rim Meeting on Electrochemical and Solid-State Science, 6–11,
2023 article proceedings
Comparative Study of PWM Modes for GaN-based Three-Level ANPC Inverter

2023 article
Determination of Parameters of Symmetrical Six-Phase Permanent Magnet Synchronous Machines
2023 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE, IEMDC.

2023 journal article
Monolithic Bidirectional WBG Switches Rekindle Power Electronics Technology [Expert View]
IEEE POWER ELECTRONICS MAGAZINE, 10(1), 71–75.

2023 article proceedings
Operating Mode Analysis and Controller Design for Medium Voltage Asynchronous Microgrid Power Conditioning System

2023 journal article
Overview of Wide/Ultrawide Bandgap Power Semiconductor Devices for Distributed Energy Resources
IEEE Journal of Emerging and Selected Topics in Power Electronics, 11(4), 3957–3982.

2023 journal article
SiC and GaN Power Devices
More-than-Moore Devices and Integration for Semiconductors, 47–104.
Ed(s): F. Iacopi & F. Balestra

2023 article
Switching Loss Analysis of Three-Phase Three-Level Neutral Point Clamped Converter Pole Enabled by Series-Connected 10 kV SiC MOSFETs
2023 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC, pp. 2353–2360.

2022 article
A New Switching Strategy for a GaN-based Three-Level Active Neutral Point Clamped Converter
2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE).

2022 article
A SiC based Two-Stage Pulsed Power Converter System for Laser Diode Driving Applications
2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE).

2022 article
Comparative Study of 6.5 kV 4H-SiC Discrete Packaged MOSFET, JBSFET, and Co-Pack (MOSFET and JBS Diode)
2022 IEEE 34TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES AND ICS (ISPSD), pp. 249–252.

2022 article
Design Considerations of Multi-Phase Multilevel Inverters for High-Power Density Traction Drive Applications
2022 IEEE/AIAA TRANSPORTATION ELECTRIFICATION CONFERENCE AND ELECTRIC AIRCRAFT TECHNOLOGIES SYMPOSIUM (ITEC+EATS 2022), pp. 23–30.

2022 article proceedings
Design Considerations of a GaN-based Three-Level Traction Inverter for Electric Vehicles

2022 conference paper
Efficient SiC Power Devices Build on Silicon's Legacy
IEEE EE Times, (The next Silicon Frontier 50th Anniversary special edition), 73–76.
2022 article
Generalized Control Technique for Three-Level Inverter Fed Six-Phase Permanent Magnet Synchronous Machines Under Fault Conditions
2022 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE).

2022 conference paper
Non-CMOS Compatible SiC Power Device Fabrication in Volume Si Fabs
PowerUp conference proceedings. Presented at the PowerUp conference.
2022 journal article
SiC Mass Commercialization: Present Status and Barriers to Overcome
Materials Science Forum, 1062, 125–130.
2022 article proceedings
SiC Power Device Mass Commercialization
2022 conference paper
SiC device manufacturing and road to volume production
International Conference on Compound Semiconductor Manufacturing Technology (CS MANTECH). Presented at the International Conference on Compound Semiconductor Manufacturing Technology (CS MANTECH), Monterey, CA, USA.
2021 article
Critical Design Considerations for Static and Dynamic Performances on 6.5 kV 4H-SiC MOSFETs Fabricated in a 6-inch SiC Foundry
2021 IEEE 8TH WORKSHOP ON WIDE BANDGAP POWER DEVICES AND APPLICATIONS (WIPDA), pp. 361–365.

2021 article proceedings
Design Considerations of Three Phase Active Front End Converter for 13.8 kV Asynchronous Microgrid Power Conditioning System enabled by Series Connection of Gen-3 10 kV SiC MOSFETs

2021 article proceedings
High Voltage Output Characteristics and Short Circuit Robustness of HV SiC MOSFETs

2021 article proceedings
Paralleling of Four 650V/60A GaN HEMTs for High Power Traction Drive Applications

2021 article
Performance Comparison and Demonstration of 3-L Voltage Source Inverters Using 3.3 kV SiC MOSFETs for 2.3 kV High Speed Induction Motor Drive Applications
2021 THIRTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2021), pp. 1103–1110.

2021 article
Performance Evaluation of 10 kV SiC Current Switch Based PWM Current Source Inverter for 4.16 kV Motor Drive Applications
2021 THIRTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2021), pp. 1219–1226.

2021 article proceedings
Series Connection of 10 kV SiC Current Switches for PWM Current Source Converter Based High Power 7.2 kV Motor Drive Applications

2021 article proceedings
Short Circuit Behavior of Series-Connected 10 kV SiC MOSFETs

2020 article proceedings
Accelerating Commercialization of SiC Power Electronics

2020 article proceedings
Comprehensive Loss Analysis of Two-level and Three-Level Inverter for Electric Vehicle Using Drive Cycle Models

2020 article proceedings
Control of Parallel Connected Interleaved Neutral Point Clamped Inverters for Electric Vehicle Drives

2020 chapter
Plasma Etching of Silicon Carbide
In K. Zekentes & K. Vasilevskiy (Eds.), Advancing Silicon Carbide Electronics Technology II: Core Technologies of Silicon Carbide Device Processing (pp. 175–232). Materials Research Foundation.
Ed(s): K. Zekentes & K. Vasilevskiy
2019 article proceedings
An Experimental Study of Short Circuit Behavior and Protection of 15 kV SiC IGBTs
Contributors: A. Kumar n, S. Bhattacharya n , J. Baliga n & n

2019 journal article
Avalanche Ruggedness Characterization of 10 kV 4H-SiC MOSFETs
Materials Science Forum, 963, 773–776.
Contributors: A. Kumar n, S. Parashar n, E. Brunt*, S. Sabri*, S. Ganguly*, S. Bhattacharya n , n

2019 article proceedings
Demonstration of New Generation 10kV SiC MOSFET Modules in Medium Voltage Power Converters
Contributors: S. Parashar n, A. Kumar n, V. Jakka n, S. Bhattacharya n & n

2019 article proceedings
Single Shot Avalanche Characterization of Series and Parallel Connection of SiC Power MOSFETs
Contributors: A. Kumar n, R. Kokkonda n, S. Bhattacharya n & n

2019 journal article
The Impact of Education in Accelerating Commercialization of Wide-Bandgap Power Electronics [Expert View]
IEEE Power Electronics Magazine, 6(2), 62–66.

2019 journal article
The South Korean Silicon-Carbide Semiconductor Industry: An Emerging Powerhouse
IEEE POWER ELECTRONICS MAGAZINE, 6(3), 56–60.
2018 journal article
Accelerating Commercialization of Wide-Bandgap Power Electronics [Expert View]
IEEE Power Electronics Magazine, 5(4), 63–65.

2018 journal article
IEEE ITRW Working Group Position Paper-Materials and Devices WBG and UWBG materials and devices are examined in a new working group
IEEE POWER ELECTRONICS MAGAZINE, 5(2), 45–48.

2018 journal article
IEEE ITRW Working Group Position Paper-System Integration and Application: Silicon Carbide: A Roadmap for Silicon Carbide Adoption in Power Conversion Applications
IEEE Power Electronics Magazine, 5(2), 40–44.

2017 article proceedings
Effect of capacitive current on reverse recovery of body diode of 10kV SiC MOSFETs and external 10kV SiC JBS diodes
2017 IEEE 5th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2017, 2017-December, 208–212.
Contributors: A. Kumar n, K. Vechalapu n, S. Bhattacharya n , n , E. Van Brunt*, D. Grider*, S. Sabri*, B. Hull *

2017 conference paper
SiC power device design and fabrication, and insertion in novel MV power converters
2017 ieee energy conversion congress and exposition (ecce).
2017 conference paper
SiC power device design and fabrication, and insertion in novel MV power converters
2017 ieee energy conversion congress and exposition (ecce).
2016 journal article
6.9-cm<sup>2</sup>Active-Area Interconnected Wafer 4-kV p-i-n Diode Pulsed at 55 kA
IEEE Journal of Emerging and Selected Topics in Power Electronics, 4(3), 767–771.

2016 journal article
Suitability of N-ON Recessed Implanted Gate Vertical-Channel SiC JFETs for Optically Triggered 1200 V Solid-State Circuit Breakers
IEEE Journal of Emerging and Selected Topics in Power Electronics, 4(3), 874–879.

2015 article proceedings
Suitability of N-ON recessed implanted gate vertical-channel SiC JFETs for optically triggered 1200 V solid-state-circuit-breakers

2014 journal article
Evaluation of SiC JFET Performance During Repetitive Pulsed Switching Into an Unclamped Inductive Load
IEEE Transactions on Plasma Science, 42(10), 2968–2973.

2014 chapter
Silicon Carbide Junction Field‐Effect Transistors (<scp>SiC</scp>JFETs)
In Wiley Encyclopedia of Electrical and Electronics Engineering (pp. 1–37).

2013 conference paper
A 7.3 THz Cut-Off Frequency, Inline, Chalcogenide Phase-Change RF Switch Using an Independent Resistive Heater for Thermal Actuation
2013 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS), 1–4.

2013 journal article
A Four-Terminal, Inline, Chalcogenide Phase-Change RF Switch Using an Independent Resistive Heater for Thermal Actuation
IEEE Electron Device Letters, 34(10), 1313–1315.

2013 journal article
High Temperature Unclamped Inductive Switching Mode Evaluation of SiC JFET
IEEE Electron Device Letters, 34(4), 526–528.

2013 journal article
Process Tolerant Single Photolithography/Implantation 120-Zone Junction Termination Extension
Materials Science Forum, 740-742, 855–858.
2013 journal article
Reliable Operation of SiC JFET Subjected to Over 2.4 Million 1200-V/115-A Hard Switching Events at 150 $^{\circ}\hbox{C}$
IEEE Electron Device Letters, 34(3), 384–386.
2013 journal article
Reliable Operation of SiC Junction-Field-Effect-Transistor Subjected to over 2 Million 600-V Hard Switch Stressing Events
Materials Science Forum, 740-742, 921–924.

2012 journal article
11.72 cm<sup>2</sup> SiC Wafer-Scale Interconnected 1.8 kV / 64 kA PiN Diode
Materials Science Forum, 717-720, 961–964.

2012 journal article
11.72-$\hbox{cm}^{2}$ Active-Area Wafer-Interconnected p-i-n Diode Pulsed at 64 kA Dissipates 382 J and Exhibits an Action of 1.7 $\hbox{MA}^{2}\cdot\hbox{s}$
IEEE Electron Device Letters, 33(6), 764–766.

2012 journal article
Avalanche Breakdown Energy in Silicon Carbide Junction Field Effect Transistors
Materials Science Forum, 717-720, 1025–1028.

2012 journal article
Degradation and Full Recovery in High-Voltage Implanted-Gate SiC JFETs Subjected to Bipolar Current Stress
IEEE Electron Device Letters, 33(7), 952–954.
2012 journal article
Hard-Switch Stressing of Vertical-Channel Implanted-Gate SiC JFETs
IEEE Electron Device Letters, 33(1), 86–88.
2012 journal article
High-Yield 4H-SiC Thyristors for Wafer-Scale Interconnection
Materials Science Forum, 717-720, 1171–1174.

2012 journal article
Recovery of Bipolar-Current Induced Degradations in High-Voltage Implanted-Gate Junction Field Effect Transistors
Materials Science Forum, 717-720, 1013–1016.
2012 journal article
Reliable Operation of 1200-V SiC Vertical Junction-Field-Effect-Transistor Subjected to 16,000-Pulse Hard Switching Stressing
Materials Science Forum, 717-720, 1021–1024.

2012 journal article
Single Photolithography/Implantation 120-Zone Junction Termination Extension for High-Voltage SiC Devices
Materials Science Forum, 717-720, 977–980.
2011 journal article
600-V Symmetrical Bi-Directional Power Switching Using SiC Vertical-Channel JFETs with Reliable Edge Termination
Materials Science Forum, 679-680, 591–594.

2011 conference paper
Analysis of SiC JFET devices during pulsed operation
2011 IEEE Pulsed Power Conference, 1102–1104.

2011 article proceedings
Demonstration of a 600-V, 60-A, bidirectional silicon carbide solid-state circuit breaker
Event: 2011 IEEE Applied Power Electronics Conference and Exposition - APEC 2011
2011 journal article
Design and Yield of 9 kV Unipolar Normally-ON Vertical-Channel SiC JFETs
Materials Science Forum, 679-680, 617–620.

2011 journal article
PERFORMANCE OF A 600-V, 30-A, BI-DIRECTIONAL SILICON CARBIDE SOLID-STATE CIRCUIT BREAKER
International Journal of High Speed Electronics and Systems, 20(03), 433–439.

2010 journal article
600-V / 2-A Symmetrical Bi-Directional Power Flow Using Vertical-Channel JFETs Connected in Common Source Configuration
Materials Science Forum, 645-648, 1147–1150.

2010 journal article
A 9-kV Normally-on Vertical-Channel SiC JFET for Unipolar Operation
IEEE Electron Device Letters, 31(5), 470–472.

2010 journal article
Comments on "1.88-$\hbox{m}\Omega \cdot \hbox{cm}^{2}$ 1650-V Normally on 4H-SiC TI-VJFET
IEEE Transactions on Electron Devices, 57(12), 3540–3543.
2010 journal article
Feasibility of Efficient Power Switching Using Short-Channel 1200-V Normally-Off SiC VJFETs; Experimental Analysis and Simulations
Materials Science Forum, 645-648, 929–932.

2009 other
1200 V SiC Vertical‐Channel‐JFETs and Cascode Switches
2009 journal article
1200 V SiC vertical‐channel‐JFETs and cascode switches
Physica Status Solidi (a), 206(10), 2346–2362.

2009 journal article
BI-DIRECTIONAL SCALABLE SOLID-STATE CIRCUIT BREAKERS FOR HYBRID-ELECTRIC VEHICLES
International Journal of High Speed Electronics and Systems, 19(01), 183–192.
2009 article proceedings
Design and yields of 1200-V recessed-implanted-gate SiC vertical-channel JFETs for power switching applications
Event: 2009 International Semiconductor Device Research Symposium (ISDRS 2009)
2009 journal article
Effect of Bipolar Gate-to-Drain Current on the Electrical Properties of Vertical Junction Field Effect Transistors
Materials Science Forum, 615-617, 719–722.
2009 journal article
Investigation of the Suitability of 1200-V Normally-Off Recessed-Implanted-Gate SiC VJFETs for Efficient Power-Switching Applications
IEEE Electron Device Letters, 30(7), 736–738.

2009 journal article
VJFET Based All-SiC Normally-Off Cascode Switch for High Temperature Power Handling Applications
Materials Science Forum, 615-617, 711–714.

2008 journal article
1200-V, 50-A, Silicon Carbide Vertical Junction Field Effect Transistors for Power Switching Applications
Materials Science Forum, 600-603, 1047–1050.

2008 journal article
4H-SiC VJFET Based Normally-off Cascode Switches for 300°C Electronic Applications
SAE International Journal of Aerospace, 1(1), 973–981.

2008 journal article
A 1680-V (at 1 $\hbox{mA/cm}^{2}$) 54-A (at 780 $\hbox{W/cm}^{2}$) Normally ON 4H-SiC JFET With 0.143- $\hbox{cm}^{2}$ Active Area
IEEE Electron Device Letters, 29(10), 1132–1134.
2008 journal article
A 2055-V (at 0.7 $\hbox{mA/cm}^{2}$) 24-A (at 706 $\hbox{W/cm}^{2}$) Normally On 4H-SiC JFET With 6.8- $\hbox{mm}^{2}$ Active Area and Blocking-Voltage Capability Reaching the Material Limit
IEEE Electron Device Letters, 29(12), 1325–1327.
2008 journal article
Large Area Silicon Carbide Vertical JFETs for 1200 V Cascode Switch Operation
International Journal of Power Management Electronics, 2008, 1–8.
2007 journal article
Demonstration of High-Voltage SiC VJFET Cascode in a Half-Bridge Inverter
Materials Science Forum, 556-557, 979–982.

2007 article proceedings
Exploring the design space of rugged seven lithographic level silicon carbide vertical JFETs for the development of 1200-V, 50-A devices
Presented at the 2007 International Semiconductor Device Research Symposium.
Event: 2007 International Semiconductor Device Research Symposium

2007 article proceedings
Large Area Silicon Carbide Vertical Junction Field Effect Transistors for High Temperature Power Conditioning Applications
Event: 2007 Vehicle Power and Propulsion Conference

2007 conference paper
Novel 1 kv, normally-off, vertically integrated, dual-gate VJFET power switch with a low 4.6 mωcm<sup>2</sup> on-state resistance
2007 65th Annual Device Research Conference, 29–30.

2006 article proceedings
2.1 m&#x03A9;-cm2, 1.6 kV 4H-Silicon Carbide VJFET for Power Applications
2006 conference paper
High Current [200 A], Low Resistance (0.87 mΩ-cm/sub 2/) Normally-off SiC VJFETs for Power Switching Applications
2005 International Semiconductor Device Research Symposium, 306–307.

2005 article proceedings
Silicon Carbide JFET Cascode Switch for Power Conditioning Applications
Event: 2005 IEEE Vehicle Power and Propulsion Conference

2002 conference paper
A practical approach to wavelength selectable DWDM sources
LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242), 1, 171–172.
2001 journal article
SIZE VARIATION OF Tb-DOPED <font>Gd</font><sub>2</sub><font>O</font><sub>3</sub> NANOPARTICLES STUDIED BY X-RAY EXCITED LUMINESCENCE AND DIFFRACTION
Modern Physics Letters B, 15(06n07), 205–211.
1999 journal article
Controlled agglomeration of Tb-doped Y2O3 nanocrystals studied by x-ray absorption fine structure, x-ray excited luminescence, and photoluminescence
Applied Physics Letters, 75(16), 2464–2466.
1998 journal article
X-ray excited luminescence and local structures in Tb-doped Y2O3 nanocrystals
Journal of Applied Physics, 83(10), 5404–5409.

1997 journal article
Engineering of the nonradiative transition rates in nonpolar modulation-doped multiple quantum wells
Journal of the Optical Society of America B, 14(5), 1043.
1997 journal article
Evidence of strong sequential band filling at interface islands in asymmetric coupled quantum wells
Superlattices and Microstructures, 22(4), 497–503.

1996 journal article
Engineering of the nonradiative transition rates in modulation-doped multiple-quantum wells
IEEE Journal of Quantum Electronics, 32(7), 1155–1160.
1996 journal article
Spatially localized band-gap renormalization and band-filling effects in three growth-interrupted multiple asymmetric coupled narrow quantum wells
Journal of the Optical Society of America B, 13(3), 536.
1995 journal article
Investigation of the temperature dependent recombination processes in periodic four-narrow-asymmetric-coupled-quantum-well structures
Journal of Luminescence, 63(1-2), 55–61.
1994 journal article
Investigation of the photoluminescence-linewidth broadening in periodic multiple narrow asymmetric coupled quantum wells
Physical Review B, 50(7), 4463–4469.

1994 journal article
Nonradiative recombination and saturation of traps in multiple intrinsic quantum wells
Journal of Applied Physics, 75(3), 1727–1732.
1993 article proceedings
Electroabsorption modulation at 1.27-1.31 µm in multiple narrow In0.53Ga0.47As/Al0.48In0.52 as quantum wells
Event: OSA Annual Meeting

1993 article proceedings
Recombination processes in multiple-four narrow asymmetric coupled quantum wells: dependence on excitation intensity and temperature
Event: OSA Annual Meeting
1993 article proceedings
Saturation of trapping and nonradiative recombination in multiple undoped quantum wells
Event: OSA Annual Meeting