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A. F. J. Levi

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Anthony Levi
BornFebruary 3, 1959
London, United Kingdom
NationalityAmerican
Alma materUniversity of Sussex
University of Cambridge
Known forMicrodisk nanolaser

Hot electron transport

Optimal semiconductor device design
Scientific career
FieldsPhysics
Electrical Engineering
InstitutionsBell Laboratories
University of Southern California

Anthony F. J. Levi (born 1959) is a British-born engineer and academic. He is professor of electrical and computer engineering at the Department of Electrical and Computer Engineering of the University of Southern California (USC). [1]

He is known for inventing hot electron spectroscopy, discovering ballistic electron transport in heterostructure bipolar transistors, and demonstrating room-temperature unipolar ballistic transistors.[2]

His research focuses on semiconductor device physics, optoelectronics, and hardware security.[3]

Education and career

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He received his Ph.D. in Physics from the University of Cambridge in 1983. Following his doctoral studies, he joined AT&T Bell Laboratories.[2]

At Bell Labs, he conducted research in semiconductor device technology, including the discovery of ballistic electron transport in heterostructure bipolar transistors and the demonstration of room-temperature unipolar transistors with ballistic transport.[4]

In 1993, Levi joined the faculty at the University of Southern California, where he holds appointments in the Ming Hsieh Department of Electrical and Computer Engineering and the Department of Physics and Astronomy.[5][6] From 2018 to 2024, he served as Chair of the Department of Electrical and Computer Engineering – Electrophysics.[3]

Research

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His early research contributed to the development of parallel fiber-optic interconnects, which are essential for enabling high-speed communication in computer and switching systems.[7][8][9][10][11][12]

He invented hot electron spectroscopy, a method used to probe non-equilibrium[13] electron transport in semiconductor devices. [14]

He is also credited with the creation of the microdisk laser, a compact and efficient semiconductor laser widely used in photonic research.[15][16]

Working with Agilent Technologies, Levi co-developed an optical connector plug-in package capable of transmitting data at an aggregate rate of 10 Gb/s in late 2000.[17]

Working with the Paul Scherrer Institute and researchers at the USC Viterbi School of Engineering, Levi helped advance a technique for defect detection in manufactured chips as well as for reverse engineering of circuit.[18][3]

In an interview with Reuters, Levi commented on supply chain concerns facing the chip industry in the U.S. during the COVID-19 pandemic, suggesting that such issues could be mitigated by focusing on rebuilding the U.S. chip manufacturing and packaging industry.[19]

References

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  1. ^ jrondon (2025-03-21). "March 21, 2025 | Why don't molecules ever stop moving? - California NanoSystems Institute". Retrieved 2025-04-24.
  2. ^ a b "Chip Scan: 3D X-Ray Imaging of CMOS Integrated Circuits - Can you trust the electronics you use? - Anthony F.J. Levi". PSW Science. Retrieved 2025-04-24.
  3. ^ a b c "Technique Could Check Integrity of Computer Chips and Detect Tampering". Technology Networks. October 11, 2019.
  4. ^ Levi, A. F. J. (2018-07-17). Essential Semiconductor Laser Device Physics. Morgan & Claypool Publishers. ISBN 978-0-7503-2929-3.
  5. ^ "A. F. J. Levi – Advanced Electronic and Photonic Technology". alevi.usc.edu. Retrieved 2025-05-06.
  6. ^ "Researchers demonstrate 3D x-ray imaging of integrated circuits with a record 4nm resolution". USC Viterbi | School of Engineering. Retrieved 2025-04-24.
  7. ^ Levi, Barbara G. (September 1992). "What's the Shape of Things to Come in Semiconductor Lasers?". Physics Today. 45 (9): 17–18. Bibcode:1992PhT....45i..17L. doi:10.1063/1.2809793.
  8. ^ Berthold, K.; Levi, A. F. J.; Walker, J.; Malik, R. J. (1988). "Extreme nonequilibrium electron transport in heterojunction bipolar transistors". Applied Physics Letters. 52 (26): 2247–2249. Bibcode:1988ApPhL..52.2247B. doi:10.1063/1.99545.
  9. ^ Levi, A. F. J.; Haas, Stephan, eds. (2009). Optimal Device Design. Cambridge University Press. doi:10.1017/CBO9780511691881. ISBN 978-0-521-11660-2.
  10. ^ Frensley, William R. (January 2005). "Applied Quantum Mechanics". Physics Today. 58 (1): 55–56. Bibcode:2005PhT....58a..55L. doi:10.1063/1.1881905.
  11. ^ Levi, A. F. J. (2023). Applied Quantum Mechanics. Cambridge University Press. doi:10.1017/9781009308083. ISBN 978-1-009-30808-3.
  12. ^ Levi, A. F. J.; Hayes, J. R.; Platzman, P. M.; Wiegmann, W. (1985). "Injected-Hot-Electron Transport in GaAs". Physical Review Letters. 55 (19): 2071–2073. Bibcode:1985PhRvL..55.2071L. doi:10.1103/physrevlett.55.2071. PMID 10032002.
  13. ^ Levi, A. F. J. (2020-09-10). "Non-Equilibrium Minority Carrier Transport". Essential Electron Transport for Device Physics. AIP Publishing. pp. 8-1 – 8-24. doi:10.1063/9780735421608_008. ISBN 978-0-7354-2158-5. Retrieved 2025-05-06.
  14. ^ Chiu, T. H.; Levi, A. F. J. (1988-03-01). "Summary Abstract: Hot-electron transport in the AlSb/InAs/GaSb double heterostructure prepared by molecular-beam epitaxy". Journal of Vacuum Science & Technology B: Microelectronics Processing and Phenomena. 6 (2): 674–675. Bibcode:1988JVSTB...6..674C. doi:10.1116/1.584387. ISSN 0734-211X.
  15. ^ Levi, A. F. J. (2019). "Quantum Behavior in Mesoscale Lasers". 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring). IEEE. pp. 684–689. doi:10.1109/PIERS-Spring46901.2019.9017832. ISBN 978-1-7281-3403-1.
  16. ^ Levi, A.F.J. (1994). "Microdisk lasers" (PDF). Solid-State Electronics. 37 (4–6): 1297–1302. Bibcode:1994SSEle..37.1297L. doi:10.1016/0038-1101(94)90412-X.
  17. ^ Savage, Neil (August 1, 2002). "Linking With Light". IEEE Spectrum.
  18. ^ "Groundbreaking Method Detects Defective Computer Chips". USC Viterbi News. October 8, 2019.
  19. ^ Nellis, Stephen; Jin, Hyunjoo (April 13, 2021). "Focus: Biden's chip dreams face reality check of supply chain complexity". Reuters.
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