Carré

dr. A.Y. Kovalgin (Alexey)

Associate Professor
EEMCS-EE-IDS
Carré C2609
a.y.kovalgin@utwente.nl
+31534892841
Business card

Education

  • Sept.1982 - Feb. 1988: St.-Petersburg State University, Faculty of Physics, Department of Photonics.
  • March 1988: MSc in Physics with specialisation in molecular spectroscopy.
  • December 1995: PhD in Electronic Materials Technology.

History of Employment

  • September 2015 – present Associate Professor, University of Twente, The Netherlands.
  • Nov 2001 – Aug 2015 Assistant Professor, University of Twente, The Netherlands.
  • Sep 2000 – Nov 2001: Staff Member of Research, University of Twente, The Netherlands.
  • 1997 – Sep 2000: Post-Doctoral Researcher, University of Twente, The Netherlands.
  • 1991 - 1996: PhD student & researcher at St.-Petersburg State Technical University.
  • 1988 - 1991: Researcher at St.-Petersburg State Technical University.

Fields of expertise

  • Chemical Vapor Deposition (CVD), Plasma Enhanced CVD (PECVD, ICPECVD).
  • Atomic Layer Deposition (ALD), Plasma Enhanced ALD (PEALD), Hot-wire ALD (HWALD).
  • ALD (PEALD, HWALD) of aluminium nitride (AlN), gallium nitride (GaN), and metallic films.
  • Growth and investigation of 2D materials (silicene, graphene).
  • (Electrical) properties of ultra-thin (metallic) films.
  • Chemical modeling of plasma reactors containing silane.
  • Semiconductor device fabrication at low temperatures; CMOS post-processing.
  • Low Pressure CVD (LPCVD) of GexSi1-x films.
  • Contact resistance issues of metal-to-semiconductor junctions (measurements and modeling).
  • Low-power hot-surface silicon devices for chemical sensors and micro-reactors.

Expertise

  • Material Science

    • Temperature
    • Tungsten
    • Electrical Resistivity
    • Aluminum Nitride
    • Film
    • Thin Films

  • Chemistry

    • Atomic Layer Epitaxy
    • Liquid Film

Organisations

Publications

2025

Creating Nanopores by Calcination of Titanicone Layers Grown by Atmospheric-Pressure Molecular Layer Deposition, for Application in Ceramic Nanofiltration Membranes (2025)Meeting Abstracts of the Electrochemical Society, MA2025-02(31). Sondhi, H., Chen, M., Nijboer, M., Nijmeijer, A., Roozeboom, F., Bechelany, M., Kovalgin, A. & Luiten-Olieman, M.https://doi.org/10.1149/MA2025-02311660mtgabsHighly Reactive Atomic Hydrogen as an Alternative Reactant for Atomic Layer Deposition of Platinum Using MeCpPtMe3 (2025)The Journal of physical chemistry C, 129(30), 13822-13829. Van Bui, H., Grillo, F., Nguyen, D. M., Dang, M. D., Aarnink, A. A. I., Wolters, R. A. M., van Ommen, J. R. & Kovalgin, A. Y.https://doi.org/10.1021/acs.jpcc.5c03286Monitoring the thickness of white Sn thin island films by spectroscopic ellipsometry (2025)Journal of vacuum science & technology A: vacuum, surfaces, and films, 43(3). Article 033410. Onnink, A. J., Schmitz, J., Terbonssen, B. & Kovalgin, A. Y.https://doi.org/10.1116/6.0004370Film thickness non-uniformity and crucial role of water dosage for atomic layer deposition of yttrium oxide from yttrium cyclopentadienyl precursor (2025)[Contribution to conference › Poster] 24th EUROCVD & ALD 2025. Wu, W., van de Kruijs, R. W. E. & Kovalgin, A. Y.Influence of calcination temperature on the physicochemical properties of atomic/molecular layer deposited hybrid inorganic/organic ceramic nanofiltration membranes (2025)Open Ceramics, 22. Article 100795. Nijboer, M. P., Sondhi, H., Makhoul, E., Bechelany, M., Gabrielli, S., Roozeboom, F., Nijmeijer, A., Kovalgin, A. Y. & Luiten-Olieman, M. W. J.https://doi.org/10.1016/j.oceram.2025.100795Ceramic Nanofiltration Membranes: Creating Nanopores by Calcination of Atmospheric-Pressure Molecular Layer Deposition Grown Titanicone Layers (2025)Membranes, 15(3). Article 86. Sondhi, H., Chen, M., Nijboer, M. P., Nijmeijer, A., Roozeboom, F., Bechelany, M., Kovalgin, A. & Luiten-Olieman, M.https://doi.org/10.3390/membranes15030086Metallic molybdenum obtained by atomic layer deposition from Mo(CO)6 (2025)Journal of vacuum science & technology A: vacuum, surfaces, and films, 43(2). Article 022407. van der Zouw, K., van der Wel, B. Y., Sturm, J. M., Aarnink, A. A. I., Wolters, R. A. M., Gravesteijn, D. J. & Kovalgin, A. Y.https://doi.org/10.1116/6.0004244Increasing hydrophobicity of ceramic membranes by post-deposition nitrogen annealing of molecular layer deposition grown hybrid layers (2025)Applied surface science, 683. Article 161790. Sondhi, H., Nijboer, M., Makhoul, E., Nijmeijer, A., Roozeboom, F., Bechelany, M., Kovalgin, A. & Luiten-Olieman, M.https://doi.org/10.1016/j.apsusc.2024.161790

2024

Electrical behavior of ALD-molybdenum films in the thin-film limit (2024)In 2024 IEEE 36th International Conference on Microelectronic Test Structures, ICMTS 2024 - Proceedings (IEEE International Conference on Microelectronic Test Structures). IEEE. Van Der Zouw, K., Dulfer, S. D., Aarnink, A. A. I. & Kovalgin, A. Y.https://doi.org/10.1109/ICMTS59902.2024.10520676Tuning Nanopores in Tubular Ceramic Nanofiltration Membranes with Atmospheric-Pressure Atomic Layer Deposition: Prospects for Pressure-Based In-Line Monitoring of Pore Narrowing (2024)Separations, 11(1). Article 24. Nijboer, M., Jan, A., Chen, M., Batenburg, K., Peper, J., Aarnink, T., Roozeboom, F., Kovalgin, A., Nijmeijer, A. & Luiten-Olieman, M.https://doi.org/10.3390/separations11010024

Other contributions

Most cited (by April 2015, see Google Scholar) 10 publications

  1. M.A. Babaeva, D.S. Bystrov, A.Y. Kovalgin, A.A. Tsyganenko, “CO interaction with the surface of thermally activated CaO and MgO”, Journal of Catalysis 123 (2), 396-416, 1990. Cited 94 times.
  2. N. Stavitski, M.J.H. Van Dal, A. Lauwers, C. Vrancken, A.Y. Kovalgin, R.A.M. Wolters, “Systematic TLM measurements of NiSi and PtSi specific contact resistance to n-and p-type Si in a broad doping range”, Electron Device Letters, IEEE29 (4), 378-381, 2008. Cited 40 times.
  3. H. Van Bui, A.W. Groenland, A.A.I. Aarnink, R.A.M. Wolters, J. Schmitz, A.Y. Kovalgin, “Growth kinetics and oxidation mechanism of ALD TiN thin films monitored by in situ spectroscopic ellipsometry”, Journal of the Electrochemical Society 158 (3), H214-H220, 2011. Cited 25 times.
  4. A. Boogaard, A.Y. Kovalgin, I. Brunets, A.A.I. Aarnink, J. Holleman, R.A.M. Wolters, J. Schmitz, “Characterization of SiO2 films deposited at low temperature by means of remote ICPECVD”, Surface and Coatings Technology 201 (22), 8976-8980, 2007. Cited 23 times.
  5. N. Stavitski, J.H. Klootwijk, H.W. van Zeijl, A.Y. Kovalgin, R.A.M. Wolters, “Cross-bridge Kelvin resistor structures for reliable measurement of low contact resistances and contact interface characterization”, Semiconductor Manufacturing, IEEE Transactions on 22 (1), 146-152, 2009. Cited 18 times.
  6. N. Stavitski, M.J.H. van Dal, A. Lauwers, C. Vrancken, A.Y. Kovalgin, R.A.M. Wolters, “Evaluation of transmission line model structures for silicide-to-silicon specific contact resistance extraction”, Electron Devices, IEEE Transactions on 55 (5), 1170-1176, 2008. Cited 17 times.
  7. A.Y. Kovalgin, A. Boogaard, I. Brunets, J. Holleman, J. Schmitz,“Chemical modeling of a high-density inductively-coupled plasma reactor containing silane”, Surface and Coatings Technology 201 (22), 8849-8853, 2007. Cited 16 times.
  8. A.Y. Kovalgin, F. Chabert-Rocabois, M.L. Hitchman, S.H. Shamlian, S.E. Alexandrov, “A study by In Situ FTIR Spectroscopy of the Decomposition of Precursors for the MOCVD of High Temperature Superconductors”, Le Journal de Physique IV 5 (C5), C5-357-C5-364, 1995. Cited 14 times.
  9. I. Brunets, J. Holleman, A.Y. Kovalgin, A. Boogaard, J. Schmitz, “Low-temperature fabricated TFTs on polysilicon stripes”, Electron Devices, IEEE Transactions on 56 (8), 1637-1644, 2009. Cited 13 times.
  10. J. Lu, A.Y. Kovalgin, K.H.M. van der Werf, R.E.I. Schropp, J. Schmitz, “Integration of solar cells on top of CMOS chips part I: A-Si solar cells”, Electron Devices, IEEE Transactions on 58 (7), 2014-2021, 2011. Cited 10 times.

Scientific and other achievements

  • Reviewer of 24 International Journals.
  • Number of PhD students (being) supervised since 2003: 15.
  • Leader of 6 scientific projects (+2x co-leader) since 2007. Co-applicant of 10 projects granted since 2007.
  • Organizer of the Dutch Thin-Film Nanomanufacturing (TFN) conference in 2009.
  • Co-organizer of the PACRIM-11 conference (S18) in 2015, Jeju, Korea.
  • Co-organizer of the ICAE-2019 conference (S09) in 2019, Jeju, Korea.
  • Jury member of VENI 2010 program.
  • Jury member of two Open Technology Programs (0265-OTP and 323-OTP) of STW.
  • International jury member of Romanian Evaluation Process (Romanian research proposals) in 2012.
  • Technical program committee member of ICMTS conference (since 2012).
  • International Board member of EUROCVD conference (since 2015).
  • Opponent at Aalto University (Finland) in June 2015 and Technical University of Denmark (February 2017).
  • Member of the editorial board of The Open Electrical & Electronic Engineering Journal and Recent Patents on Electrical Engineering (till 2018).
  • Collaboration, joint projects with NXP (NL, B), Philips (NL), ASMI (NL), ASML (NL) IMEC (B), INNOVAVENT GmbH (D), Measurement Specialties (D), Sensata Technologies (NL), EDAX B.V. (NL), Twente Solid State Technology (NL), LOT-QuantumDesign GmbH (D). Toyota Benelux (B).
  • Co-author of over 190 scientific articles and 5 patents.
  • Number of invited presentations since 2011 – 16.

Research profiles

  • Practicum RIM: central coordination and photodiode part (2002-2014 ).
  • Course IC-technology: lecturer 2001-2003; simulations: 2004-2015.
  • Developing assignments for courses IC-technology, Technology, and Materials Science since 2006.
  • Main lecture in the course Technology (since 2011).
  • Main lecture in the course Materials Science (since 2013).
  • Materials Science and Engineering (AT): involved in practicum in 2012-2014.
  • Engineering of Complex Systems (AT): involved in the PBL-module in 3-4 quarter of 2013/2014.
  • Module Fields & Waves (EE): involved in the PBL-module/assignment since 2014.
  • Module Fields & Waves (AT): involved in the PBL-module/assignment since 2015.

Courses academic year 2025/2026

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses academic year 2024/2025

Address

University of Twente

Carré (building no. 15), room C2609
Hallenweg 23
7522 NH Enschede
Netherlands

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