I am Mahfuz. I was born in Bangladesh. After finishing high school, I went to the Bangladesh University of Engineering and Technology. During my 1st year, I obtained a Monbukagakusho scholarship from Japan government to pursue my undergraduate study in Japan. I left my university and came to Japan in April 2003. Since then, I have been living in Japan. I received my B.S., M.S., and Ph.D. from Kyoto University, Kyoto, Japan, in 2009, 2011, and 2014, respectively. I am a Junior Associate Professor at the Department of Electrical Engineering at Kyoto University. I am married and have two daughters. I like reading books, gardening, playing chess and cricket, and traveling in my leisure time.

I enjoy discussing philosophy and am eager to know the great stories of humankind. I believe that most humans in this world are good and decent people with good hearts. I also think that we are all connected together. Humans are one big family where every bit of happiness and suffering affects us one way or another.

In my research, I want to develop original ideas and new interpretations rather than increase papers. I want to work with bright students who can enjoy their development during the research process. I encourage students to become independent and apply themselves fully. I emphasize developing writing abilities, communication and presentation skills, and thinking out of the box in my group. It is challenging to do something different from others. It may take some time, but it is so fulfilling and satisfying. Contact me if you are interested in joining my group or doing collaborative research.

Research Topics

1. On-chip CMOS temperature sensor
2. Flash ADC
3. On-chip digital LDO
4. True random number generator
5. Random telegraph noise

Representative Publications

1. Shun Yamaguchi, Mahfuzul Islam, Takashi Hisakado, and Osami Wada, “Low-Power Design of Digital LDO With Non-linear Symmetric Frequency Generation,” IEEE Transactions on Circuits and Systems II: Express Briefs, 2022. (DOI: 10.1109/TCSII.2022.3184774)
2. Takehiro Kitamura, Mahfuzul Islam, Takashi Hisakado, and Osami Wada, “Order statistics based low-power flash ADC with on-chip comparator selection,” IEICE Transactions on Fundamentals, Vol.E105-A, No.11, pp.-, Nov. 2022.
3. Shogo Harada, Mahfuzul Islam, Takashi Hisakado, and Osami Wada, “A process scalable voltage-reference-Free temperature sensor utilizing MOSFET threshold voltage variation,” in IEEE Asian Solid-State Circuits Conference (A-SSCC), Nov. 2021, pp. 1-3.
4. Teruki Someya, A.K.M. Mahfuzul Islam, Takayasu Sakurai, and Makoto Takamiya, “An 11-nW CMOS Temperature-to-Digital Converter Utilizing Sub-Threshold Current at Sub-Thermal Drain Voltage,” IEEE Journal of Solid-State Circuits, vol. 54, no. 3, pp. 613-622, March 2019.
5. A. K. M. Mahfuzul Islam, Tatsuya Nakai, and Hidetoshi Onodera, “Statistical Analysis and Modeling of Random Telegraph Noise Based on Gate Delay Measurement,” IEEE Transactions on Semiconductor Manufacturing, vol. 30, no. 3, pp. 216-226, 2017.
6. A.K.M. Mahfuzul Islam, Jun Shiomi, Tohru Ishihara, and Hidetoshi Onodera, “Wide-Supply-Range All-Digital Leakage Variation Sensor for On-chip Process and Temperature Monitoring,” IEEE Journal of Solid-State Circuits, vol. 50, no. 11, pp. 2475-2490, 2015.
7. Shuuichi Fujimoto, A.K.M. Mahfuzul Islam, Takashi Matsumoto, and Hidetoshi Onodera, “Inhomogeneous Ring Oscillator for Within-Die Variability and RTN Characterization,” IEEE Transactions on Semiconductor Manufacturing, vol. 26, no. 3, pp. 296-305, 2013. 
8. A.K.M. Mahfuzul Islam, Akira Tsuchiya, Kazutoshi Kobayashi, and Hidetoshi Onodera, “Variation-sensitive Monitor Circuits for Estimation of Global Process Parameter Variation,” IEEE Transactions on Semiconductor Manufacturing, vol. 25, no. 4, pp. 571-580, 2012.

Education

• Ph.D. in Informatics, January 2014
  Kyoto University, Kyoto, Japan
  Thesis: Modeling, Characterization, and Compensation of Performance Variability Using On-chip Monitor Circuits for Energy-efficient LSI
• Masters in Communications and Computer Engineering, March 2011
  Kyoto University, Kyoto, Japan
• Bachelor (Honors) in Electrical And Electronics Engineering, March 2009
  Kyoto University, Kyoto, Japan
• Associate degree in Computer and Control Engineering, March 2007
  Oita National College of Technology, Oita, Japan

Work Experiences

• Junior Associate Professor, 2018 – present
  Department of Electrical Engineering, Graduate School of Engineering, Kyoto University
• Research Associate, 2015 – 2018
  Department of Electronics and Informatics, Institute of Industrial Science, The University of Tokyo
• JSPS Postdoctoral Research Fellow, 2014 – 2015
  Kyoto University
• JSPS Doctoral Research Fellow, 2013 – 2014
  Kyoto University