Description: Concordia

 

Pouya Valizadeh

Professor of Electrical Engineering

>Department of Electrical and Computer Engineering

>Faculty of Engineering and Computer Science 

>Concordia University

 

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Theses

Automation of Deformable Models for MR Image Segmentation by Combining Capabilities of Deformable   Models and Clustering Methods

 

M.Sc. Thesis

University of Tehran/IRAN

 

September 1999

Electrical Characterization of AlGaN/GaN MODFET: A Reliability-driven Low Frequency Noise -based Study

Ph.D. Dissertation

The University of Michigan

 

April 2005

Book

Field Effect Transistors, A Comprehensive Overview: From Basic Concepts to Novel Technologies

Errata

Wiley

February 2016

Conference papers

 

Image processing

Devising a New Combinational Method for Brain MR Image Segmentation 

Valizadeh, Soltanianzadeh

Medical Image Processing symposium, Intelligent systems research institute, Tehran/IRAN (In Persian)

November 1999

A Clustering Guided Deformable Model for MRI Segmentation

Valizadeh, Soltanianzadeh

Medical imaging 2000: Proc. of SPIE Vol. 3979

February 2000

Automation of MR Image Segmentation Using Capabilities of Clustering Methods and Deformable Models 

Valizadeh, Soltanianzadeh

Best paper of the 9th Iranian Biomedical Engineering Conference (In Persian)

February 2000

Microelectromechanical systems (MEMS)

A High Sensitivity Intermodulation-Based Accelerometer

Navid, Valizadeh, Ghovanloo

Conference on Optoelectronic and Microelectronic Materials and Devices

December 2002

A CMOS Compatible MEMS-Based Voltage Multiplier for On-Chip Generation of Large DC Voltages

Valizadeh, Yang, Famouri

Conference on Optoelectronic and Microelectronic Materials and Devices

December 2006

III-V Devices

Characterization and Analysis of Gate and Drain Low Frequency Noise in AlGaN/GaN HEMTs

Hsu, Valizadeh, Pavlidis, Moon, Micovic, Wong, Hussain           

IEEE Lester Eastman Conference on High Performance Devices

August 2002

Large-Signal Linearity and Efficiency of AlGaN/GaN MODFETs

Hsu, Valizadeh, Pavlidis, Moon, Micovic, Wong, Hussain 

European Microwave , GaAs Symposium

October 2002

Impact of RF Stress on Dispersion and Power Characteristics of AlGaN/GaN HEMTs

Hsu, Valizadeh, Pavlidis, Moon, Micovic, Wong, Hussain

GaAs IC symposium

October 2002

Enhancement-Mode AlxGa1-xN/GaN Modulation Doped Field Effect Transistors

Valizadeh, Alekseev, Pavlidis, Yun, Morkoç

27th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe (WOCSDICE)

May 2003

Low Frequency Noise-Based Monitoring of the Effects of RF and DC Stress on AlGaN/GaN MODFETs

Valizadeh, Pavlidis        

GaAs IC symposium

November 2003

AlGaN/GaN High Electron Mobility Transistor (HEMT) Reliability

Pavlidis, Valizadeh, Hsu

European Microwave, GaAs Symposium

October 2005

Anomalies in Power Handling of AlGaN/GaN MODFETs

Valizadeh

ICEE07

May 2007

Non-Fundamental Low Frequency Noise Theory: Drain Noise-Current Modeling of AlGaN/GaN HFETs

Manouchehri, Valizadeh, Kabir

ICNF’11

International Conference on Noise and Fluctuations

June 2011

Proof-of-Concept Gallium-Nitride Power Electronic Converter Design for HEV Energy Management Application

Dargahi, Valizadeh, Williamson

VPPC’11

September 2011

Low Frequency Drain Noise Characteristics of Polarization-Engineered AlGaN/GaN HFETs

Manouchehri, Valizadeh, Kabir

EDSSC’13

International Conference on Electron Devices and Solid State Circuits

June 2013

Temperature-Dependent Study of Gate-Lag and RDS-Dispersion of Island-, Fin-, and Mesa-Isolated AlGaN/GaN HFETs

Sikder, Loghmany, Valizadeh

EDSSC’13

International Conference on Electron Devices and Solid State Circuits

June 2013

Experimental and Theoretical Study of Low Frequency Drain Noise-Current Characteristics of AlGaN/GaN HFETs

Manouchehri, Valizadeh, Kabir

CSSTC’13

Canadian Semiconductor Science and Technology Conference

August 2013

Journal papers

 

Low Frequency Noise of AlGaN/GaN MODFETs: A Comparative Study of Surface, Barrier and Heterointerface Effects

Valizadeh, Pavlidis, Shiojima, Makimura, Shigekawa

Journal of Solid State Electronics, vol. 49, no. 8, pp. 1352-1360

 

August 2005

Effects of RF and DC Stress on AlGaN/GaN MODFETs: A Low Frequency Noise-based Investigation

Valizadeh, Pavlidis

IEEE Transactions on Device and Materials Reliability, vol. 5, no. 3, pp. 555-563

September 2005

Investigation of the Impact of Al Mole Fraction on the Consequences of RF Stress on AlxGa1-x N/GaN MODFETs

Valizadeh, Pavlidis

IEEE Transactions on Electron Devices, vol. 52,  no. 9, pp. 1933-1939

 

September 2005

Anomalous Effects of Temperature and UV Illumination on the Operation of AlGaN/GaN MODFET

Valizadeh, Alekseev, Pavlidis, Yun, Morkoç

Journal of Solid State Electronics, vol. 50, no. 2, pp. 282-286

February 2006

Low Frequency Noise -Based Degradation Prediction of AlxGa1-xN/GaN MODFETs

Valizadeh, Pavlidis

IEEE Transactions on Device and Materials Reliability, vol. 6, no. 3, pp. 479-485

September 2006

High-Temperature, Very-Low Frequency Noise-Based Investigation of Slow Transients in AlGaN/GaN MODFETs

Valizadeh

IEEE Transactions on Device and Materials Reliability, vol. 8, no. 2, pp. 265-271

June 2008

Analytical Modeling of Current-Collapse in AlGaN/GaN HFETs According to the Virtual Gate Concept

Moradi, Valizadeh

IEEE Transactions on Device and Materials Reliability, vol 10, no. 2, pp. 287-294

June 2010

Influence of Transferred-Electron Effect on Drain-Current Characteristics of AlGaN/GaN HFETs

Moradi, Valizadeh

Journal of Applied Physics, vol. 109, no. 2, 024509 1-8

January 2011

Analytical Modeling of Drain-Current Characteristics of AlGaN/GaN HFETs with Full Incorporation of Steady-State Velocity Overshoot

Loghmany, Valizadeh

Journal of Physics D: Applied Physics, vol. 44, 125102 1-8

March 2011

Fin- and Island-Isolated AlGaN/GaN HFETs

Valizadeh, AlOtaibi

IEEE Transactions on Electron Devices, vol. 58, no. 5, pp. 1404-1407

May 2011

Investigation of the High Temperature Operation of AlGaN/GaN HFETs via Studying the Impact of Temperature Dependency of Drift Transport Characteristics

AlOtaibi, Valizadeh

IEEE Transactions on Device and Materials Reliability, vol. 12, no. 3, pp. 547-553

September 2012

Temperature-Dependent Investigation of Low Frequency Noise Characteristics of Mesa-, Fin-, and Island-Isolated AlGaN/GaN HFETs

Manouchehri, Valizadeh, Kabir

Journal of Solid State Electronics, vol. 89, pp. 1-6

November 2013

Scalability of the Drain-Current Drive of AlGaN/GaN HFETs with Gate-Length

Sikder, Valizadeh

Journal of Solid State Electronics, vol. 89, pp. 105-110

November 2013

Physics-Based Analysis of Low Frequency Drain Noise-Current in AlxGa1-xN/GaN HFETs

Manouchehri, Valizadeh, Kabir

Journal of Physics D: Applied Physics, vol. 47, 085104 1-8

February 2014

Determination of Subband Energies and 2DEG Characteristics of AlxGa1-xN/GaN Heterojunctions Using Variational Method

Manouchehri, Valizadeh, Kabir

Journal of Vacuum Science and Technology A, vol. 32, no.2, 021104-1-8

March/April 2014

Impact of Isolation-Feature Geometry on Self-Heating of AlGaN/GaN HFETs

Loghmany, Valizadeh, Record

IEEE Transactions on Electron Devices, vol. 61, no.9, pp. 3152-3158

September 2014

Alternative Isolation-Feature Geometries and Pinch-off Voltage Variation in Polar AlGaN/GaN HFETs

Loghmany, Valizadeh

Journal of Solid State Electronics, vol. 103, pp. 162-166

 

January 2015

Reverse Gate-Current of AlGaN/GaN HFETs: Evidence of Leakage at Mesa Sidewalls

Rahbardar-Mojaver, Valizadeh

IEEE Transactions on Electron Devices, vol. 63, no. 4, pp. 1444-1449

April 2016

Theoretical Evaluation of Two Dimensional Electron Gas Characteristics of Quaternary AlxInyGa1-x-yN/GaN Hetero-junctions

Rahbardar-Mojaver, Manouchehri, Valizadeh

Journal of Applied Physics, vol. 119, no. 15, 154502 1-7

April 2016

Use of a Bilayer Lattice-Matched AlInGaN Barrier for Improving the Channel Carrier Confinement of Enhancement-Mode AlInGaN/GaN Hetero-Structure Field-Effect Transistors

Rahbardar-Mojaver, Gosselin, Valizadeh

Journal of Applied Physics, vol. 121, no. 24, 244502 1-6

June 2017

Modeling the Reverse Gate-Leakage Current in GaN-Channel HFETs: Realistic Assessment of Fowler-Nordheim and Leakage at Mesa Sidewalls

Rahbardar-Mojaver, Valizadeh

IEEE Transactions on Electron Devices, vol. 65, no. 8, pp. 3156-3162

August 2018

Theoretical Evaluation of the Effects of Isolation Feature Size and Geometry on the Built-in Strain and 2-D Electron Gas Density of AlGaN/GaN Heterostructures

Gosselin, Valizadeh

IEEE Transactions on Electron Devices, vol. 65, no. 11, pp. 4800-4806

November 2018

Drain-Bias Dependent Study of Reverse Gate-Leakage Current in AlGaN/GaN HFETs

Singh, Rahbardar-Mojaver, Valizadeh

IEEE Transactions on Electron Devices, vol. 68, no. 2, pp. 503-509

February 2021

Correlation Between Sidewall Surface States and Off-State Breakdown Voltage of AlGaN/GaN HFETs

Aghayan, Valizadeh

Journal of Applied Physics, vol. 130, no. 11, 115703 1-10

September 2021

The Isolation Feature Geometry Dependence of Reverse Gate-Leakage Current of AlGaN/GaN HFETs

Aghayan, Valizadeh

Physica Scripta, 98, 095508 1-9

September 2023

A Comparative Study on the Effects of Planarity of Access Region on the Low-Frequency Noise Performance of InAlN/GaN HFETs

Patel, Valizadeh

Journal of Electron Devices Society

Accepted for publication: April 2024