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Nima Ghalichechian

  • Research Assistant Professor, Electrical & Computer Engr.
  • Room #245
    1330 Kinnear Rd
    Columbus, OH 43212
  • 614-292-6895

About

Dr. Nima Ghalichechian is a Research Assistant Professor with more than 12 years of experience in both industry and academia in design, fabrication and development of various microsystems. He is a member of the OSU ECE department, ElectroScience Laboratory, and The Institute for Materials Research. His current research projects include MEMS-based reconfigurable ultra-wide-band antennas, novel material/fabrication processes, integration of antennas on chip, development of novel phase-change-materials for reconfigurable microsystems, and millimeter wave antennas.  His research is supported by NSF, DARPA and industrial partners such as Northrop Grumman and Sysntonics LLC. Dr. Ghalichechian received his Ph.D. in Electrical Engineering in 2007 from University of Maryland, College Park. From 2007 to 2012 he was with the R&D Dept. of Formfactor Inc., Livermore, California as a Senior Principal Engineer. During this period, he helped to design and develop microsprings for advanced probe cards used in testing memory and SoC semiconductor device. He joined OSU in September 2012.



Areas of Interest
Dr. Ghalichechian’s research interests include
  • Reconfigurable antennas and RF systems
  • Millimeter-wave and terahertz microsystems
  • Micro-electro-mechanical systems (MEMS)
  • Novel materials and micro fabrication processes

Honors

  • 2016

    Best student paper competition award (2nd place) at the USNC/URSI National Radio Science Meeting, Boulder, Colorado, Jan 6, 2016., Student name: Ersin Yetisir, co-advisor. .

  • 2016

    Best student paper award at the International Workshop on Antenna Technology (iWAT), Hilton Cocoa Beach, FL, Feb 29- Mar 2, 2016 (Student name: Dimitris Papantonis).. .

  • 2014

    Senior Member. .

  • 2007

    George Harhalakis Outstanding Systems Engineering Graduate Student Award. .

  • 2007

    Best Speaker Award. .

  • 2006

    Graduate Research Award. .

  • 2004

    Best Paper Award. .

Journal Articles

2016

  • E. Yetisir, N. Ghalichechian, J. Volakis, 2016, "Ultra-wideband Array with 70° Scanning using FSS Superstrate." IEEE Transaction on Antennas and Propagation NA, no. 99, NA -
  • V. Sanphuang; N. Ghalichechian; N. K. Nahar; J. L. Volakis, 2016, "Reconfigurable THz Filters Using Phase-Change Material and Integrated Heater,." IEEE Transactions on Terahertz Science and Technology 6, no. 4, 583 - 591.

2015

  • Ghalichechian, N, Sertel, K., 2015, "Permittivity and Loss Characterization of SU-8 Films for mmW and Terahertz Applications." IEEE Antennas and Propagation Letters 14, 723 - 726.
  • Ghalichechian,Nima; Sertel,Kubilay, 2015, "Permittivity and Loss Characterization of SU-8 Films for mmW and Terahertz Applications." IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS 14, 723 - 726.
  • Sanphuang,Varittha; Ghalichechian,Nima; Nahar,Niru,K; Volakis,John,L, 2015, "Equivalent circuit for VO2 phase change material film in reconfigurable frequency selective surfaces." APPLIED PHYSICS LETTERS 107, no. 25, 253106 -

2009

  • Beyaz,Mustafa,Ilker; McCarthy,Matthew; Ghalichechian,Nima; Ghodssi,Reza, 2009, "Closed-loop control of a long-range micropositioner using integrated photodiode sensors." SENSORS AND ACTUATORS A-PHYSICAL 151, no. 2, 187 - 194.

2008

  • Beyaz,M,I; Ghalichechian,N; Ghodssi,R, 2008, "Toward an autonomous electrostatic micromotor: Integrated feedback control." MEMS 2008: 21ST IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, TECHNICAL DIGEST 483 - 486.
  • Ghalichechian,Nima; Modafe,Afireza; Beyaz,Mustafa,Ilker; Ghodssi,Reza, 2008, "Design, fabrication, and characterization of a rotary micromotor supported on microball bearings." JOURNAL OF MICROELECTROMECHANICAL SYSTEMS 17, no. 3, 632 - 642.

2007

  • Ghalichechian,Nima; Modafe,Ahreza; Lang,Jeffrey,H; Ghodssi,Reza, 2007, "Dynamic characterization of a linear electrostatic micromotor supported on microball bearings." SENSORS AND ACTUATORS A-PHYSICAL 136, no. 2, 496 - 503.
  • Ghalichechian,N; Modafe,A; Beyaz,M,I; Ghodssi,R, 2007, "A rotary micromotor supported on microball bearings." TRANSDUCERS '07 & EUROSENSORS XXI, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2

2006

  • Modafe,A; Ghalichechian,N; Frey,A; Lang,J,H; Ghodssi,R, 2006, "Microball-bearing-supported electrostatic micromachines with polymer dielectric films for electromechanical power conversion." JOURNAL OF MICROMECHANICS AND MICROENGINEERING 16, no. 9, S182 - S190.

2005

  • Modafe,A; Ghalichechian,N; Powers,M; Khbeis,M; Ghodssi,R, 2005, "Embedded benzocyclobutene in silicon: An integrated fabrication process for electrical and thermal isolation in MEMS." MICROELECTRONIC ENGINEERING 82, no. 2, 154 - 167.
  • Modafe,A; Ghalichechian,N; Frey,A; Lang,J,H; Ghodssi,R, 2005, "A microball-bearing-supported linear electrostatic micromotor with benzocyclobutene polymer insulating layers." TRANSDUCERS '05, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2 693 - 696.

2004

  • Modafe,A; Ghalichechian,N; Kleber,B; Ghodssi,R, 2004, "Electrical characterization of benzocyclobutene polymers for electric micromachines." IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY 4, no. 3, 495 - 508.
  • Ghalichechian,N; Modafe,A; Ghodssi,R; Lazzeri,P; Micheli,V; Anderle,M, 2004, "Integration of benzocyclobutene polymers and silicon micromachined structures using anisotropic wet etching." JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 22, no. 5, 2439 - 2447.

Presentations

  • "Design, Fabrication, and Characterization of a Rotary Micromotor Supported on Microball Bearings,." 2010, Presented at Stanford University MEMS and NEMS Seminar Series, Palo Alto, US|USA
  • "Reconfigurable Electromagnetic Interface." 2015, Presented at DARPA ACT Annual PI Review Meeting, US|USA

Papers in Proceedings

2016

  • D. K. Papantonis, N. Ghalichechian and J. L. Volakis "Tunable Band Rejection In A Tightly-Coupled Array Using Varactor Diodes." JOURNAL: "International Workshop on Antenna Technology (iWAT), International Workshop on Antenna Technology (iWAT), Cocoa Beach." in International Workshop on Antenna Technology (iWAT). (2 2016). 1 -
  • B. Ghassemiparvin and N. Ghalichechian "Permittivity and Dielectric Loss Measurement of Paraffin for mW and THz Applications." JOURNAL: "International Workshop on Antenna Technology (iWAT), Cocoa Beach." in International Workshop on Antenna Technology (iWAT), Cocoa Beach. (2 2016). 1 -
  • K. Keshtkaran and N. Ghalichechian "Suspended 60 GHz Phased Array Antenna With High Efficiency." JOURNAL: "International Workshop on Antenna Technology (iWAT), International Workshop on Antenna Technology (iWAT), Cocoa Beach." in International Workshop on Antenna Technology (iWAT). (2 2016). 1 -
  • E. Yetisir, N. Ghalichechian and J. L. Volakis "A Novel Array with 6:1 Bandwidth and 70° Scanning Using FSS Superstrate." JOURNAL: "URSI National Radio Science Meeting, Boulder." in URSI National Radio Science Meeting, Boulder. (1 2016). 1 -
  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. L. Volakis "Reconfigurable THz Array Employing Vanadium Dioxide." JOURNAL: "URSI National Radio Science Meeting, Boulder." in URSI National Radio Science Meeting Boulder. (1 2016). 1 -
  • Benjamin Lough, Behnam Ghassemiparvin, Nima Ghalichechian "RF Micro-Electro-Mechanical Pulmonary Artery Banding for Congenital Heart Diseases." JOURNAL: "38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)." in 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). (8 2016). NA -
  • B. Ghassemiparvin and N. Ghalichechian, "Reconfigurable Millimeter-wave Antennas using Paraffin-Based MEMS Capacitors." JOURNAL: "European Conference on Antennas and Propagation (EuCAP), Davos." in European Conference on Antennas and Propagation (EuCAP), Davos. (4 2016). 1 -

2015

  • Chau, L., Ho, J. G., Lan, X., Altvater, G., Young, R. M., El-Hinnawy, N., Nichols, D., Volakis, J., Ghalichechian, N. "Optically controlled GeTe phase change switch and its applications in reconfigurable antenna arrays." JOURNAL: "Proceedings of SPIE - The International Society for Optical Engineering." in Proceedings of SPIE - The International Society for Optical Engineering. (1 2015). NA -
  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Bandwidth Reconfigurable THz Filter Employing Phase-Change Material." JOURNAL: "IEEE Symposium on Antennas and Propagation (APS), Vancouver." (7 2015). 1 -
  • D. Papantonis, N. Ghalichechian, J. Volakis "UWB Arrays With Tunable Band Rejection." JOURNAL: "IEEE Symposium on Antennas and Propagation (APS), Vancouver." (5 2015). 1 -
  • D. Papantonis, M. Novak, N. Ghalichechian, John L. Volakis "Conformal and Reconfigurable Ultra-wide-band Arrays." JOURNAL: "9th European Conference on Antennas and Propagation (EuCAP), Lisbon." (4 2015). 1 -
  • S. Sahin, N. Ghalichechian, N. Nahar, K. Sertel "Lithographically-fabricated Ultrawideband Phased-Arrays for Agile mmW Connectivity." JOURNAL: "URSI CNC/USNC Joint Meeting, Vancouver." (7 2015). 1 -
  • J. L. Volakis, E. A. Alwan, D. Papantonis, M. Novak, N. Ghalichechian and W. Khalil "Low Power Ultra-Wideband Digital Beamforming for UHF to Millimeter-Wave Applications." JOURNAL: "11th International Workshop on Antenna Technology (iWAT), Seoul, Korea." (3 2015). 1 -
  • D. Papantonis, N. Ghalichechian, J. Volakis "Reconfigurable Ultra-Wideband Array with Tunable Band Rejection across a 7:1 Bandwidth." JOURNAL: "IEEE-MTT International Microwave Symposium (IMS), Phoenix." in Reconfigurable Ultra-Wideband Array with Tunable Band Rejection across a 7:1 Bandwidth. (5 2015). 1 -
  • Yetisir, E., Ghalichechian, N., Volakis, J. L. "Wideband & wide angle scanning array with parasitic superstrate." JOURNAL: "IEEE Antennas and Propagation Society, AP-S International Symposium, Vancouver." in IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). (1 2015). 2521 - 2522.
  • E. Alwan, N. Ghalichechian, J. Volakis "Low Power Millimeter Wave Beamforming Transceiver System using On-Site Coding." JOURNAL: "URSI CNC/USNC Joint Meeting, Vancouver." (7 2015). 1 -
  • Loc Chau, James G. Ho, Xing Lan, Norma Riley, Robert M. Young, Nabil El-Hinnawy, Doyle Nichols, John Volakis, and Nima Ghalichechian "Optically-controlled GeTe phase change switch and its applications in reconfigurable antenna arrays." JOURNAL: "40th Annual Government Microcircuit Applications & Critical Technology Conference (GOMACTech), St. Louis." (3 2015). 1 -

2014

  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Reconfigurable THz Filters with Integrated Micro-Heater." JOURNAL: "IEEE AP-S/URSI-USNC Symposium, Memphis." (7 2014). 1 -
  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Phase Change Materials for Reconfigurability in THz band." JOURNAL: "National Aerospace and Electronics Conference , Dayton." (6 2014). 1 -
  • S. Sahin, N. Ghalichechian, K. Sertel "Ultra-wideband, High-efficiency, On-chip mmW Phased Arrays with Wafer-level Vertical Integration." JOURNAL: "AP-S/URSI-USNC Symposium, Memphis." (7 2014). 1 -
  • V. Sanphuang, N. Ghalichechian, N. Nahar, J. Volakis "Phase Change Materials for Reconfigurable Systems." JOURNAL: "IEEE AP-S/URSI-USNC Symposium, Memphis." in IEEE AP-S/URSI-USNC Symposium, Memphis. (7 2014). 1 -

2013

  • N. Ghalichechian, J. Doane, W. Hong, K. Sertel, and J. Volakis "Characterization of SU-8 Using Terahertz Time-Domain Spectroscopy." JOURNAL: "IEEE AP-S/URSI-USNC Symposium, Orlando." (7 2013). 1 -

2008

  • M.I. Beyaz, M. McCarthy, N. Ghalichechian, and R. Ghodssi "Photodiode Position Sensors for Integrated Feedback Control of a Long-Range Micropositioner." JOURNAL: "IEEE Sensors Conference, Lecce,." (10 2008). 1 -
  • N. Ghalichechian, M. McCarthy, M. I. Beyaz, and R. Ghodssi "Measurement and Modeling of Friction in Linear and Rotary Micromotors Supported on Microball Bearings." JOURNAL: "IEEE International Conference on Micro Electro Mechanical Systems, Tuscan." in IEEE International Conference on Micro Electro Mechanical Systems. (1 2008). 1 -

2007

  • M. I. Beyaz, N. Ghalichechian, and R. Ghodssi "Towards an Autonomous Electrostatic Micromotor: Integrated Feedback Control." JOURNAL: "International Semiconductor Device Research Symposium (ISRS), College Park." (12 2007). 1 -
  • N. Ghalichechian, A. Modafe, M. I. Beyaz, and R. Ghodssi "A Rotary Micromotor Supported on Microball Bearings." JOURNAL: "The 14th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers), Lyon." (6 2007). 1123 - 1126.
  • M. I. Beyaz, N. Ghalichechian, A. Modafe, and R. Ghodssi "Towards Feedback Control with Integrated Position Sensing in Micromachines." JOURNAL: "AVS 54th International Symposium, Seattle." in AVS 54th International Symposium, Seattle. (10 2007). 1 -

2006

  • N. Ghalichechian, A. Modafe, M. I. Beyaz, and R. Ghodssi "Chemical Mechanical Planarization of BCB Polymer Films: Effect of Cure Temperature." JOURNAL: "American Vacuum Society 53rd International Symposium, San Francisco." (11 2006). 1 -
  • N. Ghalichechian, A. Modafe, M. I. Beyaz, C. M. Waits, and R. Ghodssi "Design and Fabrication of a Rotary, Electrostatic Micromotor Supported on Microball Bearings." JOURNAL: "Sixth International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (Power MEMS ’06), Berkeley." (12 2006). 227 - 230.
  • N. Ghalichechian, A. Modafe, A. Frey, J. H. Lang, and R. Ghodssi "Dynamic Characterization of a Linear Variable-Capacitance Micromotor." JOURNAL: "Solid-State Sensor, Actuator, and Microsystems Workshop, Hilton Head Island." (6 2006). 19 - 22.

2005

  • A. Modafe, N. Ghalichechian, and R. Ghodssi, "Multilevel Interconnection and Isolation for Electrostatic MEMS Using Embedded Benzocyclobutene in Silicon Process." JOURNAL: "Twenty Second International VLSI Multilevel Interconnection (VMIC) Conference, Fremont." (10 2005). 1 -
  • A. Modafe, N. Ghalichechian, and R. Ghodssi, "Embedded Benzocyclobutene Islands in Silicon (EBIS) Process for Fabrication of Electrostatic Microelectromechanical Devices." JOURNAL: "Materials Research Society 2005 Spring Meeting, San Francisco." (3 2005). 1 -
  • Nima Ghalichechian, Alireza Modafe, Paolo Lazzeri, Victor Micheli, Mariano Anderle, and Reza Ghodssi "Characterization of Benzocyclobutene and Chromium-gold Film Interface for Application in Silicon Micromachining." JOURNAL: "Material Research Society 2005 Spring Meeting, San Francisco." (3 2005). 1 -
  • A. Modafe, N. Ghalichechian, A. Frey, J. H. Lang, and R. Ghodssi "Microball-Bearing-Supported Electrostatic Micromachines with Polymer Dielectric Films for Electromechanical Power Conversion." JOURNAL: "Fifth International Workshop on Micro Nano Technology for Power Generation and Energy Conversion Applications (Power MEMS ‘05, Tokyo,." (11 2005). 173 - 176.
  • A. Modafe, N. Ghalichechian, J. H. Lang, and R. Ghodssi ""A Microball-Bearing-Supported Linear Electrostatic Micromotor with Benzocyclobutene Polymer Insulating Layers." JOURNAL: "The 13th International Conference on Solid-State Sensors, Actuators, and Microsystems (Transducers '05), Seoul." (6 2005). 693 - 696.

2004

  • X. Tan, A. Modafe, R. Hergert, N. Ghalichechian, B. Shapiro, and R. Ghodssi "Vision-based Microtribological Characterization of Linear Microball Bearings." JOURNAL: "2004 ASME/STLE International Joint Tribology Conference, Long Beach." (11 2004). 1 -
  • A. Modafe, N. Ghalichechian, and R. Ghodssi "BCB-Based Linear Micromotor Supported on Microball Bearings: Design Concepts, Characterization, and Fabrication Development." JOURNAL: "American Vacuum Society 51st International Symposium, Anaheim,." (11 2004). 1 -

2003

  • A. Modafe, N. Ghalichechian, B. Kleber and R. Ghodssi "Electrical Characterization of BCB for Electrostatic Microelectromechanical Devices." JOURNAL: "aterials Research Society 2003 Fall Meeting, Boston." (12 2003). 1 -
  • N. Ghalichechian, A. Modafe and R. Ghodssi "Integration of Silicon Anisotropic Wet Etching and BCB Processes." JOURNAL: "AVS 50rd International Symposium, Baltimore." (11 2003). 1 -