Assoc. Prof. Siek Liter

Associate Professor




Assoc. Prof. Liter SIEK received the B.A.Sc. degree from University of Ottawa (OU), Ottawa, Ontario, Canada; the M.Eng.Sc. from University of New South Wales (UNSW), Sydney, New South Wales, Australia; and the Ph.D from Nanyang Technological University (NTU), Singapore. From 1981 to 1983 he was employed in a couple of companies in the area of automation and control. From 1983 to 1985, he was a IC Design engineer with a European semiconductor powerhouse, SGS (now known as ST Microelectronics), situated in Castelletto, Milan, Italy, where he worked in the central R&D Laboratories for Linear IC, designing ICs for cordless telephone and motor regulator. From 1985 to 1987, he was with the same company situated in Singapore’s Asia Pacific Design Centre, where he was a senior IC design engineer involved in IC design for monolithic power ICs. Since October 1987, he has been with the School of Electrical and Electronic Engineering(EEE) in Nanyang Technological University(NTU) involving both in research and academic. He has received a number of teaching awards – the Nanyang Award for Excellence in Teaching in 2012 and 2018, three EEE Teaching Excellence Awards (TEA) in 2011, 2015 and 2019. He was the Director of VIRTUS – IC Design Centre of Excellence from September 2012 to September 2015 as well as the Director for the Joint NTU-TUM MSc(IC Design) programme from August 2007 to July 2015. He is currently an Associate Professor in the School of Electrical and Electronic Engineering and also the Lead for the Joint NTU-TUM PhD programme. His research interests are mostly in the analog/mixed signal ICs especially in the areas of low-voltage low-power circuits, Power Management ICs, PLLs and Data Converters for energy harvesting and IoT applications. In addition, he has authored and co-authored more than a 160 international journal/conference technical papers and has conducted numerous Analog/Mixed Signal IC design short courses as well as providing technical consultancy for the industry. He is currently actively involved in the IEEE SSCS Singapore Chapter.


Research interests are in the design of analog/mixed signal ICs especially in the areas of low-voltage low-power circuits, Power Management ICs, PLLs and Data Converters.


  • Direct Integration Of GaN Power Devices On CMOS Circuits To Demonstrate Power Management Solutions
  • Power Management In Energy Harvesting


  1. A. Q. W. Cai, L. Siek. (2017). A 2kW, 95% Efficiency Inductive Power Transfer System Using Gallium Nitride Gate Injection Transistors, IEEE Journal of Emerging and Selected Topics in Power Electronics, JESTPE. IEEE, 5(1), 458-468.
  2. Y. H. Leow, H. Tang, Z. C. Sun, L. Siek. (2016). A 1V 103dB Pseudo 3rd-Order Audio Continuous-Time ΔΣ ADC with Enhanced Noise Shaping in 65nm CMOS. IEEE Journal of Solid-State Circuits, Vol. 51(Iss. 11), 2625 – 2638.
  3. Guolei Yu; Kin Wai Roy Chew; Zhuo Chao Sun; Howard Tang; Liter Siek. (2015). A 400 nW Single-Inductor Dual-Input–Tri-Output DC–DC Buck–Boost Converter With Maximum Power Point Tracking for Indoor Photovoltaic Energy Harvesting. IEEE Journal of Solid-State Circuits, 50(11), pp. 2758 – 2772.
  4. Howard Tang, Zhuochao Sun, Kin Wai Roy Chew, Liter Siek. (2014). A 1.33μW 8.02-ENOB 100kS/s Successive Approximation ADC with Supply Reduction Technique for Implantable Retinal Prosthesis. IEEE Transactions on biomedical circuits and systems, 8(6), 844-856.
  5. W.Y. Toh, Y.K. Tan, W.S. Koh and L. Siek. (2014). Autonomous Wearable Sensor Nodes with Flexible Energy Harvesting. IEEE Sensors Journal , 14(7), 2299-2306.
  6. Wendy Wee Yee Lau, Heng Wah Ho, Liter Siek, “Deep Neural Network (DNN) Optimized Design of 2.45 GHz CMOS Rectifier With 73.6% Peak Efficiency for RF Energy Harvesting”, IEEE Transactions on Circuits and Systems I: Regular Papers,(Volume: 67 , Issue 12 Dec.. 2020), Pp: 4322 – 4333, Publisher: IEEE, Date of Publication: 22 September 2020. DOI:10.1109/TCSI.2020.3022280.

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