Joseph S. Friedman


Ph.D. Student: Wesley H. "Gunther" Brigner

Wesley.Brigner@utdallas.edu


Wesley H. "Gunther" Brigner is a fourth-year Electrical Engineering Ph.D. student at the Erik Jonsson School of Engineering & Computer Science at The University of Texas at Dallas. He received the B.S. degree in Electrical Engineering in 2020 from The University of Texas at Dallas. His current research focus is on spintronic neuromorphic computing.

He has been awarded the National Science Foundation (NSF) Graduate Research Fellowship, the TI Analog Excellence Graduate Fellowship, and the Eugene McDermott Graduate Fellowship.

Book Chapter

  1. X. Hu, W. H. Brigner, J. S. Friedman, CNT and SiNW FED Modeling for Ambipolar Logic Circuit Design, Functionality-Enhanced Devices: An Alternative to Moore's Law, P.-E. Gaillardon (Ed.), The Institution of Engineering and Technology, 2019, ISBN: 978-1-78561-558-0.

arXiv Preprints

  1. A. Velasquez, C. H. Bennett, N. Hassan, W. H. Brigner, O. G. Akinola, J. A. C. Incorvia, M. J. Marinella, J. S. Friedman, Unsupervised Competitive Hardware Learning Rule for Spintronic Clustering Architecture, arXiv:2003.11120 (2020).
  2. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Multilayer Perceptron Enabled by Four-Terminal MTJ Device, arXiv: 2002.00862 (2020).

Journal Publications

  1. X. Hu, C. Cui, S. Liu, F. Garcia-Sanchez, W. H. Brigner, B. W. Walker, A. J. Edwards, T. P. Xiao, C. Bennett, N. Hassan, M. P. Frank, J. A. C. Incorvia, J. S. Friedman, Magnetic Skyrmions and Domain Walls for Logical and Neuromorphic Computing, Neuromorphic Computing and Engineering 3:2, 022003 (2023).
  2. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, C. Cui, A. Velasquez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Domain Wall Leaky Integrate-and-Fire Neurons with Shape-Based Configurable Activation Functions, IEEE Transactions on Electron Devices 69:5, 2353-2359 (2022).
  3. W. H. Brigner, X. Hu, N. Hassan, L. Jiang-Wei, C. H. Bennett, F. Garcia-Sanchez, O. Akinola, M. Pasquale, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Three Artificial Spintronic Leaky Integrate-and-Fire Neurons, SPIN 10:2, 2040003 (2020).
  4.   • Featured as Cover Image for Issue
  5. W. H. Brigner, N. Hassan, L. Jiang-Wei, X. Hu, D. Saha, C. H. Bennett, M. J. Marinella, J. A. C. Incorvia, F. Garcia-Sanchez, J. S. Friedman, Shape-Based Magnetic Domain Wall Drift for an Artificial Spintronic Leaky Integrate-and-Fire Neuron, IEEE Transactions on Electron Devices 66:11, 4970-4975 (2019).
  6. W. H. Brigner, X. Hu, N. Hassan, C. H. Bennett, J. A. C. Incorvia, F. Garcia-Sanchez, J. S. Friedman, Graded-Anisotropy-Induced Magnetic Domain Wall Drift for an Artificial Spintronic Leaky Integrate-and-Fire Neuron, IEEE Journal on Exploratory Solid-State Computational Devices and Circuits 5:1, 19-24 (2019).
  7. X. Hu, A. Timm, W. H. Brigner, J. A. C. Incorvia, J. S. Friedman, SPICE-Only Model for Spin-Transfer Torque Domain Wall MTJ Logic, IEEE Transactions on Electron Devices 66:6, 2817-2821 (2019).
  8.   • Device Model
  9. N. Hassan*, X. Hu*, L. Jiang-Wei, W. H. Brigner, O. G. Akinola, F. Garcia-Sanchez, M. Pasquale, C. H. Bennett, J. A. C. Incorvia, J. S. Friedman, Magnetic Domain Wall Neuron with Lateral Inhibition, Journal of Applied Physics 124:15, 152127 (2018).

Conference Papers & Presentations

  1. X. Li, D. Biswas, P. Zhou, W. H. Brigner, J. S. Friedman, Q. Gu, Experimental Demonstration of Online Learning in Deep Photonic Neural Networks, IEEE Photonics Conference, Nov. 2023.
  2. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, C. Cui, A. Velasquez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Leaky Integrate-and-Fire Activation Functions in Domain Wall Magnetic Tunnel Junction Devices, International Conference on Neuromorphic Systems, Aug. 2023.
  3. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, C. Cui, A. Velasquez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Configurable Activation Functions based on DW-MTJ LIF Neurons, Neuro-Inspired Computational Elements, Apr. 2023.
  4. W. H. Brigner, Neuromorphic Computing with Domain Wall Magnetic Tunnel Junctions, IEEE Dallas Circuits and Systems Conference, Apr. 2023.
  5. J. S. Friedman, P. Zhou, X. Hu, A. J. Edwards, N. Hassan, W. H. Brigner, F. Garcia-Sanchez, C. H. Bennett, A. Velasquez, J. A. C. Incorvia, F. B. Mancoff, S. Aggarwal, Unsupervised Learning and Recognition with Single-Domain and Domain-Wall MTJs, Tohoku University Center for Science and Innovation in Spintronics Symposium, Oct. 2022 (invited).
  6. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, C. Cui, A. Velasquez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Shape-Based Activation Functions in Magnetic Domain Wall Leaky Integrate-and-Fire Neurons for Artificial Intelligence Applications, IEEE International Conference on Nanotechnology, July 2022.
  7. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Purely Spintronic Leaky Integrate-and-Fire Neurons, IEEE International Symposium on Circuits & Systems, May 2022.
  8. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Multilayer Perceptron Enabled by Four-Terminal MTJ Device, ACM Neuro-Inspired Computational Elements Workshop, Mar.-Apr. 2022.
  9. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, C. Cui, A. Velasquez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Shape-Based Activation Functions in Magnetic Domain Wall Leaky Integrate-and-Fire Neurons for Artificial Intelligence Applications, APS March Meeting, Mar. 2022.
  10. K. Doleh, C. M. Linseisen, L. M. Humphrey, F. Garcia-Sanchez, X. Hu, W. H. Brigner, C. Cui, J. M. Martin, J. A. C. Incorvia, N. Hassan, A. J. Edwards, J. S. Friedman, Kinematic Domain Wall Model for Large-Scale Neuromorphic Network Simulation, Joint IEEE International Magnetics Conference & Conference on Magnetism and Magnetic Materials, Jan. 2022.
  11. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, A. Velasquez, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Multilayer Perceptron Enabled by Four-Terminal MTJ Device, IEEE International Conference on Rebooting Computing, Nov. - Dec. 2021.
  12. N. Hassan, W. H. Brigner, C. H. Bennett, A. Velasquez, X. Hu, S. Liu, C. Cui, M. J. Marinella, F. Garcia-Sanchez, J. A. C. Incorvia, J. S. Friedman, Unsupervised Learning in a Purely Spintronic Multilayer Perceptron Enabled by Four-Terminal Domain Wall Magnetic Tunnel Junction Neuron, SPIE Spintronics, Aug. 2021 (invited).
  13. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Purely Spintronic Leaky Integrate-and-Fire Neurons, International Conference on Neuromorphic Systems, July 2021.
  14. W. H. Brigner, N. Hassan, C. H. Bennett, X. Hu, A. Velasquez, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Spintronic Neural Network with Unsupervised Learning, Government Microcircuit Applications & Critical Technology Conference, Mar. 2021.
  15. N. Hassan, W. H. Brigner, C. H. Bennett, A. Velasquez, X. Hu, O. G. Akinola, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Purely Spintronic Perceptron with Unsupervised Learning Enabled by Four-Terminal Domain Wall-Magnetic Tunnel Junction Neuron, APS March Meeting, Mar. 2021.
  16. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Magnetic Domain Wall Leaky Integrate-and-Fire Neurons with Shape-Based Configurable Activation Functions, APS March Meeting, Mar. 2021.
  17. N. Hassan, W. H. Brigner, C. H. Bennett, A. Velasquez, X. Hu, O. G. Akinola, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Purely Spintronic Multilayer Perceptron Enabled by Four-Terminal Domain Wall-Magnetic Tunnel Junction Neuron, Conference on Magnetism and Magnetic Materials, Nov. 2020.
  18. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, Linear Intrinsic Leaking in a Domain-Wall Magnetic Tunnel Junction Neuron, Conference on Magnetism and Magnetic Materials, Nov. 2020.
  19. J. A. C. Incorvia, J. S. Friedman, M. J. Marinella, O. G. Akinola, C. Cui, N. Hassan, C. H. Bennett, X. Hu, L. Jiang-Wei, W. H. Brigner, F. Garcia-Sanchez, M. Pasquale, Modeling Biological Behavior in Domain Wall-Magnetic Tunnel Junction Artificial Neurons and Synapses for Energy-Efficient Neuromorphic Computing, Conference on Magnetism and Magnetic Materials, Nov. 2020 (invited).
  20. J. A. C. Incorvia, J. S. Friedman, M. J. Marinella, O. G. Akinola, C. Cui, N. Hassan, C. H. Bennett, X. Hu, L. Jiang-Wei, W. H. Brigner, F. Garcia-Sanchez, M. Pasquale, Capturing Biological Behavior in Nanomagnetic Artificial Neurons and Synapses for Energy-Efficient Neuromorphic Computing, Pacific Rim Meeting on Electrochemical & Solid-State Science, Oct. 2020 (invited).
  21. W. H. Brigner, N. Hassan, C. H. Bennett, X. Hu, A. Velasquez, F. Garcia-Sanchez, M. J. Marinella, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Spintronic Neural Network with Unsupervised Learning, IBM/IEEE AI Compute Symposium, Oct. 2020.
  22. N. Hassan, W. H. Brigner, X. Hu, O. G. Akinola, C. H. Bennett, M. J. Marinella, F. Garcia-Sanchez, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Magnetic Domain Wall Leaky Integrate-and-Fire Neurons with Intrinsic Lateral Inhibition, IEEE International Symposium on Circuits & Systems, Oct. 2020 (invited).
  23. X. Hu, N. Hassan, W. H. Brigner, M. Chauwin, J. S. Friedman, Device Modeling and Circuit Design for Scalable Beyond-CMOS Computing, IFIP/IEEE International Conference on Very Large Scale Integration, Oct. 2020.
  24. W. H. Brigner, N. Hassan, X. Hu, C. H. Bennett, M. J. Marinella, F. Garcia-Sanchez, J. A. C. Incorvia, J. S. Friedman, CMOS-Free Multilayer Perceptron Enabled by Four-Terminal MTJ Device, Government Microcircuit Applications & Critical Technology Conference, Mar. 2020.
  25. A. Velasquez, C. H. Bennett, N. Hassan, W. H. Brigner, O. G. Akinola, J. A. C. Incorvia, M. J. Marinella, J. S. Friedman, Unsupervised Competitive Hardware Learning Rule for Spintronic Clustering Architecture, Government Microcircuit Applications & Critical Technology Conference, Mar. 2020.
  26. W. H. Brigner, N. Hassan, X. Hu, L. Jiang-Wei, D. Saha, C. H. Bennett, M. J. Marinella, F. Garcia-Sanchez, J. A. C. Incorvia, J. S. Friedman, Magnetic Domain Wall Neurons with Intrinsic Leaking, Conference on Magnetism and Magnetic Materials, Nov. 2019.
  27. W. H. Brigner, N. Hassan, X. Hu, L. Jiang-Wei, O. G. Akinola, F. Garcia-Sanchez, M. Pasquale, C. H. Bennett, J. A. C. Incorvia, J. S. Friedman, Magnetic Domain Wall Neuron with Intrinsic Leaking and Lateral Inhibition Capability, SPIE Spintronics, Aug. 2019 (invited).
  28. N. Hassan, X. Hu, L. Jiang-Wei, W. H. Brigner, O. G. Akinola, F. Garcia-Sanchez, M. Pasquale, C. H. Bennett, J. A. C. Incorvia, J. S. Friedman, Neuromorphic Computing with Domain Wall-Based Three-Terminal Magnetic Tunnel Junctions: Neurons, Joint IEEE International Magnetics Conference & Conference on Magnetism and Magnetic Materials, Jan. 2019.

Patents

  1. J. S. Friedman, W. H. Brigner, N. Hassan, X. Hu, A. Velasquez, Spintronic Computing Architecture and Method, U.S. Patent #11,977,970 (2024).
  2. J. S. Friedman, W. H. Brigner, N. Hassan, X. Hu, Magnetic Domain Wall Drift for an Artificial Leaky Integrate-and-Fire Neuron, U.S. Patent #11,514,301 (2022).