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Personal profile
Personal profile
Sang Lam studied electronic engineering at the Hong Kong University of Science and Technology (HKUST) where he graduated with a Bachelor of Engineering degree. In his final year project, he worked on a gigahertz low-noise amplifier and downconversion mixer realised using a 0.5-micron CMOS process. Then he carried out research in silicon CMOS devices for radio-frequency (RF) integrated circuits (ICs) and received his Master of Philosophy degree in Electrical and Electronic Engineering. He also earned a Master of Science degree in Physics from HKUST. After working for a few years in Hong Kong, he went to the UK to pursue doctoral research on semiconductor photonics at the nanometre scale. Participating a multi-university and interdisciplinary project funded by EPSRC of the UK, he worked on photonic crystal cavities with embedded quantum dots (QDs) at the University of Sheffield. On completion of his PhD research, Dr. Lam returned to Hong Kong to co-found a start-up company. After building the foundation of the start-up, he worked as an Ramp;D engineer for Hong Kong Applied Science and Technology Research Institute Company Limited (ASTRI), an Ramp;D organization established by the Hong Kong Government. Prior to joining Xian Jiaotong-Liverpool University (XJTLU) as an academic staff member of the Department of Electrical and Electronic Engineering (EEE), he worked on a PEM fuel cell project at ASTRI. Besides, he also assisted in Ramp;D projects on lithium-ion batteries and the ink-jet print-heads at the same company. Dr. Lams academic interests cover a broad range, from semiconductor electronics to applied electromagnetics, from device fabrication to integrated circuit (IC) physical design, from fundamental physics to alternative energy technologies, from a few hertz (Hz) to a few hundred terahertz (THz) in the electromagnetic spectrum. His current research focuses mainly on semiconductor devices and RF passive components implemented by screen-printing. Outside work, Dr. Lam enjoys listening to music, especially Christian hymns. He also likes hiking and walking or cycling around.
Research interests
Semiconductor devices in CMOS technology, millimeter-wave transmission lines, RF passive components implemented by screen-printing, GaN transistors, electromagnetic properties of subwavelength-scale devices and materials, and fabrication and electrical characterization of nanometre-scale structures.
Experience
Senior Associate Professor, Xiapos;an Jiaotong Liverpool University - 2017 to Present
Visiting Scholar, ECE Department, Hong Kong University of Science and Technology (HKUST) - 2017-2018 (on sabbatical leave)
Associate Professor, Xiapos;an Jiaotong Liverpool University - 2015 to 2017
Lecturer, Xiapos;an Jiaotong-Liverpool University - 2012 to 2015
Senior Engineer, Hong Kong Applied Science and Technology Research Institute Company Limited (ASTRI) - 2011 to 2012
Lab Demonstrator, The University of Sheffield - 2006 to 2008
Assistant Scientific Officer, Applied Technology Centre, Hong Kong University of Science Technology - 2004 to 2005
Teaching
EEE314 Introduction to Photonics Optoelectronics
EEE201 CMOS Digital Integrated Circuits
EEE307 Electronics for Communications
EEE318 Photonics Optical Communication Systems
EEE112 Integrated Electronics Design
EEE105 Electronic Circuits - Transistors
EEE332 Micro- and Nano-Manufacturing
Awards and honours
The Outstanding Academic Staff Award for Teaching Excellence 2020/2021 - XJTLUs annual learning and teaching award
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Ph.D. , The University of Sheffield, Sheffield, UK - 2010
MSc , The Hong Kong University of Science and Technology, Hong Kong - 2003
MPhil , The Hong Kong University of Science and Technology, Hong Kong - 2001
BEng , The Hong Kong University of Science and Technology, Hong Kong - 1999
Research areas
- RF microelectronics
- applied electromagnetics
- GaN semiconductor devices
- CMOS nanophotonics
- high-frequency integrated circuits
- Si3N4 integrated photonics
Person Types
- Staff
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Collaborations and top research areas from the last five years
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PGRS: Electromagnetic Investigation of Substrate Coupling in Gallium Nitride (GaN) Power Integrated Circuits
Lam, S. (PI)
1/08/24 → 31/08/27
Project: Internal Research Project
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SURF 2025: SURF 2024: Gallium Nitride (GaN) Depletion-Mode Transistors: Reliability Considerations in High Frequency Power Electronic Circuits
Lam, S. (PI)
9/06/25 → 31/08/25
Project: Internal Research Project
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SURF 2024: Electromagnetic Investigation of On-Chip Semiconductor Structures for Signals of Optical and Microwave Frequencies
Lam, S. (PI)
17/06/24 → 31/08/24
Project: Internal Research Project
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SURF 2022: Development of GaN Switching Circuits for High Frequency Operation: Simulation, Construction & Testing
Lam, S. (PI)
13/06/22 → 31/08/22
Project: Internal Research Project
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SURF 2021: Gate Drivers Based on GaN Transistors for Power Electronic Circuits: Simulation, Construction & Testing
Lam, S. (PI)
15/06/21 → 31/08/21
Project: Internal Research Project
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An Electromagnetic Study of Grounded Isolation Trenches at Critical Positions in GaN-on-Si Technology for Integrated Power Electronics
Yao, R., JIANG, Z., Cui, M., Wang, Z., Lam, S. & Taylor, S., 5 Nov 2025, (Accepted/In press) Photonics and Electromagnetics Research Symposium (Autumn PIERS 2025).Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review
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An Electromagnetic Study of Scalability of CMOS-compatible Si3N4 Optical Waveguides for Nanophotonics on a Silicon Substrate
Zhou, W., Yao, R. & Lam, S., 6 Jan 2025, (Accepted/In press).Research output: Contribution to conference › Paper › peer-review
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A p-GaN HEMT Voltage Reference With High Line Sensitivity and Power Supply Rejection Ratio
Cao, P., Zhao, K., Xu, Y., Zalinge, H. V., Lam, S., Zhang, P., Cui, M. & Xue, F., Jul 2025, In: IEEE Journal of the Electron Devices Society. 13, p. 630-637 8 p.Research output: Contribution to journal › Article › peer-review
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A Six-Port Si3N4 Resonant Filter Design with Bus Waveguides Vertically and Sideways Coupled to a Microring Resonator for 3D Photonic Networks-on-Chip
Zhou, W. & Lam, S., 12 Oct 2025, (Accepted/In press) 30th Microoptics Conference (MOC 2025). The Japan Society of Applied PhysicsResearch output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review
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CMOS-compatible Si3N4 Optical Waveguides: An Electromagnetic Study for Fabrication Considerations of SiO2 Cladding and Silicon Wafer Choice
Zhou, W., Yao, R. & Lam, S., 2025, 9th IEEE Electron Devices Technology and Manufacturing Conference: Shaping the Future with Innovations in Devices and Manufacturing, EDTM 2025. Institute of Electrical and Electronics Engineers Inc., (9th IEEE Electron Devices Technology and Manufacturing Conference: Shaping the Future with Innovations in Devices and Manufacturing, EDTM 2025).Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review
1 Citation (Scopus)
Activities
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The Second Bi-annual IEEE Workshop on Wide Bandgap Power Devices and Applications in Europe (Event)
Sang Lam (Reviewer)
16 Sept 2024 → 18 Sept 2024Activity: Peer-review and editorial work of publications › Publication Peer-review
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Hong Kong University of Science and Technology (HKUST)
Sang Lam (Visiting researcher)
24 Jan 2024 → 16 Feb 2024Activity: Research visit
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Electromagnetic Investigation of Substrate Coupling in Gallium Nitride (GaN) Power Integrated Circuits
Sang Lam (Supervisor)
1 Dec 2023 → 30 Nov 2026Activity: Supervision › PhD Supervision
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Session on "Analog and RF Circuits Design" at IEEE 2023 International Conference on Integrated Circuits & Microsystems (Event)
Sang Lam (Chair)
20 Oct 2023 → 23 Oct 2023Activity: Membership › Membership of committee
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IEEE 2023 International Conference on Integrated Circuits & Microsystems
Sang Lam (Member of programme committee)
20 Oct 2023 → 23 Oct 2023Activity: Participating in or organising an event › Participating in an event e.g. a conference, workshop, …