March 17, 2024

Makoto Takamiya
Institute of Industrial Science
University of Tokyo
4-6-1 Komaba, Meguro-ku, Tokyo, Japan, 153-8505
mtaka@iis.u-tokyo.ac.jp
http://icdesign.iis.u-tokyo.ac.jp/prof_takamiya/takamiya.html

Research Interests
VLSI circuit design, especially(1) Digital gate driver and sensor ICs for power electronics(2) Integrated power management circuits for automotive and industrial applications(3) Integrated power management circuits for wireless powering and energy harvesting for wearable and IoTapplications

Education
04/97 – 03/00
04/95 – 03/97
04/91 – 03/95

Ph.D. in Electronic Engineering, University of Tokyo, Japan
M.S. in Electronic Engineering, University of Tokyo, Japan
B.S. in Electronic Engineering, University of Tokyo, Japan

Academic Positions
04/19 – present
04/05 – 03/19
04/13 – 04/14

Professor in University of Tokyo, Japan
Institute of Industrial Science
Associate Professor in University of Tokyo, JapanVLSI Design and Education Center and Institute of Industrial Science
Visiting Scholar in University of California, Berkeley, USA
The Ubiquitous Swarm Lab, Prof. Jan Rabaey

Industry Positions
04/00 – 03/05

Circuit designer in NEC Corporation, Japan
Circuit design of high speed digital LSI's

Awards[1] 1st prize of the ECCE 2022 William Portnoy Award, IEEE- IAS Power Electronics Devices and Components
Committee (PEDCC), 2023.
[2] Electronics Society Award, Electronics Society, The Institute of Electronics, Information andCommunication Engineers, 2020.
[3] Best Paper Award, IEEE International Future Energy Electronics Conference (IFEEC), 2019.
[4] Third Prize Paper Award, Industrial Power Conversion Systems Department, Industrial Power Converters
Committee of IEEE Industrial Applications Society, 2019.
[5] IEEE SSCS Kansai Chapter Academic Research Award, IEEE Solid-State Circuits Society Kansai Chapter,2015.
[6] Best Paper Award, IEEE Wireless Power Transfer Conference (WPTC), 2013.

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[7] Best Design Award in University LSI Design Contest, Asia-South Pacific Design Automation Conference(ASP-DAC), 2012.
[8] Paul Rappaport Award 2010 (Best paper in EDS publications), IEEE Electron Devices Society.
[9] IEEE SSCS Kansai Chapter Academic Research Award, IEEE Solid-State Circuits Society Kansai Chapter,
2011.
[10] Paul Rappaport Award 2009 (Best paper in EDS publications), IEEE Electron Devices Society.
[11] IEEE SSCS Kansai Chapter Academic Research Award, IEEE Solid-State Circuits Society Kansai Chapter,2009.
[12] SSDM Young Researcher Award, International Conference on Solid State Devices and Materials, 1999.

Professional Activities[1] Member, Technical Program Committee, Power Management Track, IEEE European Solid-State Electronics
Research Conference (ESSERC) (2024 - )[2] Associate Editor, IEEE Transactions on Circuits and Systems II: Express Briefs (IEEE TCAS-II) (2024 2025)[3] Elected member, Administrative Committee (AdCom), IEEE Solid-State Circuits Society (2023 - 2025)[4] Member, Technical Program Committee, Power IC Design Sub-committee, IEEE International Symposium
on Power Semiconductor Devices and ICs (ISPSD) (2023 - )[5] Guest Editor-in-Chief, Special Section on Analog Circuits and Their Application Technologies, IEICE
Transaction on Electronics, E105-C, No.10, Oct. 2022.
[6] Member, Technical Program Committee, Emerging ICs Sub-committee, IEEE International Symposium onRadio-Frequency Integration Technology (RFIT) (2022 - )[7] Track Chair, Smart Power Track, IEEE International Midwest Symposium on Circuits and Systems(MWSCAS) (2022 - )[8] Member, Technical Program Committee, Analog Circuits and Systems Sub-committee, IEEE Asian
Solid-State Circuits Conference (A-SSCC) (2020 - present)[9] Member, Technical Program Committee, IEEE Symposium on VLSI Circuits (2020 - present)[10] Far East Regional Chair, IEEE International Solid-State Circuits Conference (ISSCC) (2020)[11] Distinguished Lecturer, IEEE Solid-State Circuits Society (2019 - 2020)[12] Far East Regional Vice-Chair, IEEE International Solid-State Circuits Conference (ISSCC) (2019)[13] Far East Regional Secretary, IEEE International Solid-State Circuits Conference (ISSCC) (2018)[14] Member, Technical Program Committee, Power Management Sub-committee, IEEE International Solid-State
Circuits Conference (ISSCC) (2018 - 2020)[15] Member, Technical Program Committee, Analog Sub-committee, IEEE International Solid-State Circuits
Conference (ISSCC) (2015 - 2017)[16] Member, Technical Program Committee, IEEE SOI-3D-Subthreshold Microelectronics Technology Unified
Conference (IEEE S3S) (2014 - 2019)[17] Associate editor, IEICE Electronics Express (ELEX) (2013 - 2015)[18] Member, Technical Program Committee, IEEE International 3D Systems Integration Conference (3DIC)(2009 - 2015)[19] Member, Technical Program Committee, IEEE Symposium on VLSI Circuits (2009 - 2017)[20] Member, Technical Program Committee, Custom Applications and Low Power Techniques Sub-committee(2006), Custom Applications and Power Management Sub-committee (2007), Power Management
Sub-committee (2008 - 2011), IEEE Custom Integrated Circuits Conference (CICC) (2006 - 2011)[21] Member, Technical Program Committee, Advanced Silicon Circuits and Systems Sub-committee,
International Conference on Solid State Devices and Materials (SSDM) (2003 - 2004)

Publications
Statistics
IEEE Solid-State Circuits Society: JSSC (22), ISSCC (19), VLSIC (18), CICC (14), ESSCIRC (7), A-SSCC (8)2IEEE Power Electronics Society: TPEL (4), APEC (12), ECCE (9), ECCE Asia (5), SPEC (5)IEEE Circuits and Systems Society: TCAS-I (10), TCAS-II (5), TVLSI (3), ISCAS (2)Patents: Japan (42)

(A) Book Chapters[1] M. Takamiya, K. Ishida, T Sekitani, T. Someya, and T. Sakurai, "Organic Integrated Circuits for EMI
Measurement," in the book entitled, "Stretchable Electronics", Editor: Takao Someya, Wilery-VCH, pp.
431-448, ISBN 978-3527329786, Feb. 2013.
[2] M. Takamiya, T. Sekitani, K. Ishida, T. Someya, and T. Sakurai, "Large Area Electronics with Organic
Transistors," in the book entitled, "Applications of Organic and Printed Electronics", Editor: Eugenio
Cantatore, Springer, pp. 101-113, ISBN 978-1461431596, Oct. 2012.
[3] M. Takamiya, K. Onizuka, K. Ishida, and T. Sakurai, "DC-DC Converter Technologies for On-Chip
Distributed Power Supply Systems - 3D Stacking and Hybrid Operation," in the book entitled, "Emerging
Technologies and Circuits", Editors: Amara Amara, Thomas Ea, and Marc Belleville, Springer, pp. 221-247,
ISBN 978-9048193783, Sep. 2010.
[4] M. Takamiya, K. Onizuka, and T. Sakurai, "AC Coupled Wireless Power Delivery," in the book entitled,"Coupled Data Communication Techniques for High-Performance and Low-Power Computing", Editors:
Ron Ho and Robert Drost, Springer, pp. 193-204, ISBN 978-1441965875, June 2010.

(B) Journals[1] Z. Lou, T. Mamee, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, "Mechanism of Gate Voltage Spikeunder Digital Gate Control at IGBT Switching Operations," Elsevier Power Electronic Devices andComponents, Vol. 7, 100054, pp. 1 - 7, April 2024.
[2] H. Qiu, X. Zhang, J. Chen, M. Takamiya, and Y. Shi, "A 6.78-MHz Coupling Coefficient Sensorless
Wireless Power Transfer System Charging Multiple Receivers With Efficiency Maximization by Adaptive
Magnetic Field Distributor IC," IEEE Transactions on Circuits and Systems―I: Regular Papers, Vol. 71, No.
2, pp. 974 - 983, Feb. 2024.
[3] Q. Ma, X. Zhang, A. Zhao, H. Li, Y. Jiang, M. -K. Law, M. Takamiya, R. P. Martins, and P. -I. Mak, " A
10.5 W, 93% Efficient Dual-Path Hybrid (DPH)-Based DC–DC Converter Incorporating aContinuous-Current-Input Switched-Capacitor Stage and Enhanced IL Reduction for 12 V/24 V Inputs,"
IEEE Transactions on Circuits and Systems―I: Regular Papers, Vol. 70, No. 12, pp. 5482 - 5495, Dec. 2023.
[4] D. -H. Yao, T. -N. Liu, M. Takamiya, and P. -H. Chen, "A 6.78-MHz Wireless Power Transfer System With
Dual-Output Resonant Current-Mode Regulating Rectifier and Transmission Power Regulation," IEEE
Transactions on Circuits and Systems―I: Regular Papers, Vol. 70, No. 12, pp. 4986 - 4998, Dec. 2023.
[5] X. Zhang, Q. Ma, A. Zhao, Y. Jiang, M. -K. Law, J. Jiang, M. Takamiya, R. P. Martins, and P. -I. Mak, " A
12/24 V-Input HV-LV-Separated Hybrid SC PoL Converter With 355 mW/mm3 Power Density at 3 A Load
Current and 15.2 mm3 Power Passives," IEEE Transactions on Power Electronics, Vol. 38, No. 12, pp.
15109 - 15114, Dec. 2023.
[6] T. Mamee, Z. Lou, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, "Bond Wire Lift-off Detection by
Gate Voltage Waveform in IGBT Turn-Off Process Enhanced by Digital Gate Control," Elsevier PowerElectronic Devices and Components, Vol. 6, 100052, pp. 1 - 8, Oct. 2023.
[7] X. Mu, G. Zhao, A. Zhao, Y. Jiang, M. -K. Law, M. Takamiya, P. -I. Mak, and R. P. Martins,"Floating-Domain Integrated GaN Driver Techniques for DC–DC Converters: A Review," IEEE
Transactions on Circuits and Systems―I: Regular Papers, Vol. 70, No. 9, pp. 3790 - 3805, Sept. 2023.
[8] T. -W. Wang, T. Inuma, P. -H. Chen, and M. Takamiya, "Search Method of Robust Gate Driving Vectors for
Digital Gate Drivers With Low Test Cost Against Load Current and Temperature Variations in IGBTs,"
IEEE Transactions on Power Electronics, Vol.38, No.9, pp. 10669 - 10679, Sep. 2023.
[9] T. Mamee, Z. Lou, K. Hata, M. Takamiya, S. Nishizawa, and W. Saito, "Enhancement of Turn-Off Gate
Voltage Waveform Change by Digital Gate Control for Bond Wire Lift-Off Detection in IGBT Module,"
Elsevier Microelectronics Reliability, Vol. 147, 115067, pp. 1 - 6, Aug. 2023.

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[10] R. Wang, C. -H. Wu, and M. Takamiya, "Integrated Imager and 3.22 μs/Kernel-Latency All-Digital
In-Imager Global-Parallel Binary Convolutional Neural Network Accelerator for Image Processing," IEEE
Access, Vol.11, pp. 74364 - 74378, July 2023.
[11] K. Horii, H. Yano, K. Hata, R. Wang, K. Mikami, K. Hatori, K. Tanaka, W. Saito, and M. Takamiya,"Large-Current Output Digital Gate Driver for 6500 V, 1000 A IGBT Module to Reduce Switching Loss andCollector Current Overshoot," IEEE Transactions on Power Electronics, Vol.38, No.7, pp. 8075 - 8088, July
2023.
[12] H. Yamasaki, K. Hata, and M. Takamiya, "Estimation of Both Junction Temperature and Load Current of
IGBTs from Output Voltage of Gate Driver," IEEJ Journal of Industry Applications, Vol.12, No.3, pp. 392 400, May 2023.
[13] Z. Lou, T. Mamee, K. Hata, M. Takamiya, S. -I. Nishizawa, and W. Saito, "IGBT Power Module Design for
Suppressing Gate Voltage Spike at Digital Gate Control," IEEE Access, Vol.11, pp. 6632 - 6640, Jan. 2023.
[14] H. Qiu, T. Sakurai, and M. Takamiya, "A 6.78-MHz Multiple-Transmitter Wireless Power Transfer System
With Efficiency Maximization by Adaptive Magnetic Field Adder IC," IEEE Journal of Solid-State Circuits,
Vol.57, No.8, pp. 2390 - 2403, Aug. 2022.
[15] Y. S. Cheng, D. Yamaguchi, T. Mannen, K. Wada, T. Sai, K. Miyazaki, M. Takamiya, and T. Sakurai,"High-Speed Searching of Optimum Switching Pattern for Digital Active Gate Drive to Adapt to Various
Load Conditions," IEEE Transactions on Industry Electronics, Vol.69, No.5, pp. 5185 - 5184, May 2022.
[16] D. Yamaguchi, Y. S. Cheng, T. Mannen, H. Obara, K. Wada, T. Sai, M. Takamiya, and T. Sakurai, "An
Optimization Method of a Digital Active Gate Driver Under Continuous Switching Operation Being Capableof Suppressing Surge Voltage and Power Loss in PWM Inverters," IEEE Transactions on Industry
Applications, Vol.58, No.1, pp. 481 - 493, Jan./Feb. 2022.
[17] H. Qiu, Y. Jiang, Y. Shi, T. Sakurai, and M. Takamiya, "Analysis and Mitigation of Coupling-Dependent
Data Flipping in Wireless Power and Data Transfer System," IEEE Transactions on Circuits and Systems―I:
Regular Papers, Vol. 68, No. 12, pp. 5182 - 5193, Dec. 2021.
[18] Q. Ma, X. Zhang, Y. Jiang, K. Hata, M. Takamiya, M.-K. Law, P.-I. Mak, and R. P. Martins, "A Multi-Path
Switched-Capacitor-Inductor Hybrid DC-DC Converter with Reduced Inductor Loss and Extended Voltage
Conversion Range," IEICE Electronics Express, Vol.18, Issue 22, Pages 20210405, Nov. 2021.
[19] Y. Yamauchi, T. Sai, K. Hata, and M. Takamiya, "0.55 W, 88%, 78 kHz, 48 V-to-5 V Fibonacci Hybrid
DC–DC Converter IC Using 66 mm3 of Passive Components With Automatic Change of Converter
Topology and Duty Ratio for Cold-Crank Transient," IEEE Transactions on Power Electronics, Vol.36, No.8,
pp. 9273 - 9284, Aug. 2021.
[20] F. -B. Yang, J. Fuh, Y. -H. Li, M. Takamiya, and P. -H. Chen, "Structure-Reconfigurable Power Amplifier(SR-PA) and 0X/1X Regulating Rectifier for Adaptive Power Control in Wireless Power Transfer System,"IEEE Journal of Solid-State Circuits, Vol.56, No.7, pp. 2054 - 2064, July 2021.
[21] H. Qiu, T. Sakurai, and M. Takamiya, "Digital Transmitter Coil for Wireless Power Transfer Robust Against
Variation of Distance and Lateral Misalignment," IEEE Transactions on Microwave Theory and Techniques,Vol.68, No.9, pp. 4031 - 4039, Sep. 2020.
[22] Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, "Theoretical and Experimental Analyses of Dynamic
Performance of Three-Level Buck Converters in Discontinuous Conduction Mode for Standby Mode Power
Supply," IEEJ Journal of Industry Applications, Vol.9, No.3, pp. 271 - 281, May 2020.
[23] H.- H. Lee, C.- W. Liu, M. Takamiya, and P. -H. Chen, "Single-Inductor Dual-Input Dual-Output Battery-PV
Hybrid System with 2-D Adaptive On-Time Control for Internet of Things," IEEE Transactions on Circuits
and Systems―I: Regular Papers, Vol. 67, No. 3, pp. 1069 - 1078, March 2020.
[24] Y. Cheng, T. Mannen, K. Wada, K. Miyazaki, M. Takamiya, and T. Sakurai, "Optimization Platform to Finda Switching Pattern of Digital Active Gate Drive for Reducing Both Switching Loss and Surge Voltage,"
IEEE Transactions on Industry Applications, Vol.55, No.5, pp. 5023 - 5031, Sep./Oct. 2019.
[25] T. Someya, K. Matsunaga, H. Morimura, T. Sakurai, and M. Takamiya, "A 0.90–4.39-V Detection Voltage
Range, 56-Level Programmable Voltage Detector Using Fine Voltage-Step Subtraction for Battery
Management," IEEE Transactions on Circuits and Systems―I: Regular Papers, Vol. 66, No. 3, pp. 1270 1279, March 2019.
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[26] T. Someya, A. K. M. M. Islam, T. Sakurai, and M. 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.
[27] T. Sai, Y. Yamauchi, H. Kando, T. Funaki, T. Sakurai, and M. Takamiya, "2/3 and 1/2 Reconﬁgurable
Switched Capacitor DC–DC Converter With 92.9% Efﬁciency at 62 mW/mm2 Using Driver Amplitude
Doubler," IEEE Transactions on Circuits and Systems―II: Express Briefs, Vol. 65, No. 11, pp. 1654 - 1658,
Nov. 2018.
[28] H. Obara, K. Wada, K. Miyazaki, M. Takamiya, and T. Sakurai, "Active Gate Control in Half-Bridge
Inverters Using Programmable Gate Driver ICs to Improve Both Surge Voltage and Converter Efﬁciency,"
IEEE Transactions on Industry Applications, Vol.54, No.5, pp. 4603 - 4611, Sep./Oct. 2018.
[29] C.-S. Wu, M. Takamiya, and T. Sakurai, "Clocked Hysteresis Control Scheme With Power-Law Frequency
Scaling in Buck Converter to Improve Light-Load Efficiency for IoT Sensor Nodes," IEEE Transactions on
Very Large Scale Integration (VLSI) Systems, Vol. 26, No. 6, pp. 1139-1150, June 2018.
[30] Y. Uno, H. Qiu, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M. Takamiya,“Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based On Acoustic Levitation andWireless Powering,” Proceedings of the ACM on Interactive, Mobile, Wearable and UbiquitousTechnologies (IMWUT), Volume 1, Issue 4, Article No. 166, 17 pages, Dec. 2017.
[31] S. Iguchi, T. Sakurai, and M. Takamiya, "A Low-Power CMOS Crystal Oscillator Using a
Stacked-Amplifier Architecture," IEEE Journal of Solid-State Circuits, Vol.52, No.1, pp. 3006 - 3017, Nov.
2017.
[32] K. Miyazaki, S. Abe, M. Tsukuda, I. Omura, K. Wada, M. Takamiya, and T. Sakurai, "General-Purpose
Clocked Gate Driver IC With Programmable 63-Level Drivability to Optimize Overshoot and Energy Loss in
Switching by a Simulated Annealing Algorithm," IEEE Transactions on Industry Applications, Vol.53, No.3,
pp. 2350 - 2357, May/June 2017.
[33] T. Someya, H. Fuketa, K. Matsunaga, H. Morimura, T. Sakurai, and M. Takamiya, "Design and Analysis of
Ultra-Low Power Glitch-Free Programmable Voltage Detector Based on Multiple Voltage Copier," IEICE
Transaction on Electronics, Vol.E100-C, No.4, pp. 349 - 358, April 2017.
[34] A. K. M. M. Islam, M. Hamamatsu, T. Yokota, S. Lee, W. Yukita, M. Takamiya, T. Someya, and T. Sakurai,"Programmable Neuron Array Based on a 2-Transistor Multiplier Using Organic Floating-Gate forIntelligent Sensors," IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Vol.7, No.1,
pp. 81 - 91, March 2017.
[35] S. Iguchi, H. Fuketa, T. Sakurai, and M. Takamiya, "Variation-Tolerant Quick-Start-Up CMOS Crystal
Oscillator With Chirp Injection and Negative Resistance Booster," IEEE Journal of Solid-State Circuits,
Vol.51, No.2, pp. 496 - 508, Feb. 2016.
[36] H. Fuketa, K. Yoshioka, K. Fukuda, T. Mori, H. Ota, M. Takamiya and T. Sakurai, “Design Guidelines toAchieve Minimum Energy Operation for Ultra Low Voltage Tunneling FET Logic Circuits” Japanese
Journal of Applied Physics, Vol. 54, No. 4S, 04DC04, April, 2015.
[37] S. Iguchi, P. Yeon, H. Fuketa, K. Ishida, T. Sakurai, and M. Takamiya, "Wireless Power Transfer With
Zero-Phase-Difference Capacitance Control," IEEE Transactions on Circuits and Systems―I: Regular
Papers, Vol. 62, No. 4, pp. 938 - 947, April 2015.
[38] K. Hagita, Y. Yazaki, Y. Kondo, M. Sonehara, T. Sato, T. Fujii, K. Kobayashi, S. Nakazawa, H. Shimizu, T.
Watanabe, Y. Seino, N. Matsushita, Y. Yanagihara, T. Someya, H. Fuketa, M. Takamiya, and T. Sakurai,"CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Zn-Fe Ferrite Core
Inductor," Journal of the Magnetics Society of Japan, Vol. 39, No. 2, pp. 71 - 79, March 2015.
[39] H. Fuketa, K. Yoshioka, Y. Shinozuka, K. Ishida, T. Yokota, N. Matsuhisa, Y. Inoue, M. Sekino, T. Sekitani,
M. Takamiya, T. Someya, and T. Sakurai, "1um-Thickness Ultra-Flexible and High Electrode-Density
Surface Electromyogram Measurement Sheet With 2 V Organic Transistors for Prosthetic Hand Control,"IEEE Transactions on Biomedical Circuits and Systems, Vol. 8, No. 6, pp. 824 - 833, Dec. 2014.
[40] X. Zhang, P. -H. Chen, Y. Okuma, K. Ishida, Y. Ryu, K. Watanabe, T. Sakurai, and M. Takamiya, "A 0.6 V
Input CCM/DCM Operating Digital Buck Converter in 40 nm CMOS," IEEE Journal of Solid-State Circuits,
Vol.49, No.11, pp. 2377 - 2386, Nov. 2014.
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[41] S. Iguchi, A. Saito, K. Watanabe, T. Sakurai, and M. Takamiya, "Design Method of Class-F Power Amplifier
with Output Power of -20dBm and Efficient Dual Supply Voltage Transmitter," IEEE Transactions on
Circuits and Systems―I: Regular Papers, Vol. 61, No. 10, pp. 2978 - 2986, Oct. 2014.
[42] H. Fuketa, Y. Shinozuka, K. Ishida, M. Takamiya, T. Fujii, H. Shimizu, K. Kobayashi, T. Sato, and T.
Sakurai, "Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material toInductor on Interposer," Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 61, No. S1, pp.
S340-S342, May 2014.
[43] K. Mori, Y. Okuma, X. Zhang, H. Fuketa, T. Sakurai, and M. Takamiya, “Analog-Assisted Digital Low
Dropout Regulator with Fast Transient Response and Low Output Ripple” Japanese Journal of Applied
Physics, Vol. 53, No. 4S, 04EE22, April, 2014.
[44] H. Fuketa, M. Nomura, M. Takamiya, and T. Sakurai, "Intermittent Resonant Clocking Enabling Power
Reduction at Any Clock Frequency for Near/Sub-Threshold Logic Circuits," IEEE Journal of Solid-State
Circuits, Vol.49, No.2, pp. 536-544, Feb. 2014.
[45] K. Takemura, K. Ishida, Y. Ishii, K. Maeda, M. Takamiya, T. Sakurai, and K. Baba, "Si Interposers with
15-um-thick Spiral Inductors and SrTiO3 Thin Film Capacitors for Novel 3D Stacked Buck Converters,"
Transactions of The Japan Institute of Electronics Packaging, Vol. 6, No. 1, pp. 78-86, 2013.
[46] H. Fuketa, R. Takahashi, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "Increase of Crosstalk
Noise Due to Imbalanced Threshold Voltage Between nMOS and pMOS in Subthreshold Logic Circuits,"
IEEE Journal of Solid-State Circuits, Vol. 48, No. 8, pp. 1986-1994, Aug. 2013.
[47] H. Fuketa, K. Hirairi, T. Yasufuku, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "Minimizing
Energy of Integer Unit by Higher Voltage Flip-Flop: VDDmin-Aware Dual Supply Voltage Technique,"IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol. 21, No. 6, pp. 1175-1179, June
2013.
[48] K. Ishida, T. -C. Huang, K. Honda, Y. Shinozuka, H. Fuketa, T. Yokota, U. Zschieschang, H. Klauk, G.
Tortissier, T. Sekitani, H. Toshiyoshi, M. Takamiya, T. Someya, and T. Sakurai, "Insole Pedometer With
Piezoelectric Energy Harvester and 2 V Organic Circuits," IEEE Journal of Solid-State Circuits, Vol.48,
No.1, pp. 255-264, Jan. 2013.
[49] K. Mori, H. Lim, S. Iguchi, K. Ishida, M. Takamiya, and T. Sakurai, “Positioning-Free Resonant WirelessPower Transmission Sheet With Staggered Repeater Coil Array (SRCA),” IEEE Antennas and WirelessPropagation Letters, Vol. 11, pp. 1710-1713, Dec. 2012. (Invited)[50] R. Takahashi, H. Takata, T. Yasufuku, H. Fuketa, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai,"Large Within-Die Gate Delay Variations in Sub-Threshold Logic Circuits at Low Temperature," IEEE
Transactions on Circuits and Systems-II, Express Briefs, Vol.59, No.12, pp. 918-921, Dec. 2012.
[51] T. Yokota, T. Sekitani, T. Tokuhara, N. Take, U. Zschieschang, H. Klauk, K. Takimiya, T. -C. Huang, M.
Takamiya, T. Sakurai, and T. Someya, "Sheet-Type Flexible Organic Active Matrix Amplifier System Using
Pseudo-CMOS Circuits With Floating-Gate Structure," IEEE Transactions on Electron Devices, Vol. 59, No.
12, pp. 3434 - 3441, Dec. 2012.
[52] P. -H. Chen, X. Zhang, K. Ishida, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai, "An 80 mV Startup
Dual-Mode Boost Converter by Charge-Pumped Pulse Generator and Threshold Voltage Tuned Oscillator
With Hot Carrier Injection," IEEE Journal of Solid-State Circuits, Vol. 47, No. 11, pp. 2554-2562, Nov.
2012.
[53] X. Zhang, K. Ishida, H. Fuketa, M. Takamiya, and T. Sakurai, "On-Chip Measurement System forWithin-Die Delay Variation of Individual Standard Cells in 65-nm CMOS," IEEE Transactions on Very
Large Scale Integration (VLSI) Systems, Vol. 20, No. 10, pp. 1876-1880, Oct. 2012.
[54] N. Masunaga, K. Ishida, T. Sakurai, and M. Takamiya, "EMI Camera LSI (EMcam) with On-Chip Loop
Antenna Matrix to Measure EMI Noise Spectrum and Distribution," IEICE Transaction on Electronics,
E95-C, No.6, pp. 1059-1066, June 2012.
[55] L. Liu, T. Sakurai, and M. Takamiya, "A 315MHz Power-Gated Ultra Low Power Transceiver in 40nm
CMOS for Wireless Sensor Network," IEICE Transaction on Electronics, E95-C, No.6, pp. 1035-1041, June2012.
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[56] X. Zhang, Y. Pu, K. Ishida, Y. Ryu, Y. Okuma, P. -H. Chen, K. Watanabe, T. Sakurai, and M. Takamiya, “A
1-V-Input Switched-Capacitor Voltage Converter with Voltage-Reference-Free Pulse-Density Modulation,”
IEEE Transactions on Circuits and Systems-II: Express Briefs, Vol.59, No.6, pp. 361-365, Jun. 2012.
[57] P. -H. Chen, K. Ishida, K. Ikeuchi, X. Zhang, K. Honda, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai,"Startup Techniques for 95 mV Step-Up Converter by Capacitor Pass-On Scheme and Vth-Tuned Oscillator
With Fixed Charge Programming," IEEE Journal of Solid-State Circuits, Vol.47, No.5, pp. 1252-1260, May.
2012.
[58] K. Ishida, T. -C. Huang, K. Honda, T. Sekitani, H. Nakajima, H. Maeda, M. Takamiya, T. Someya, and T.
Sakurai, "A 100-V AC Energy Meter Integrating 20-V Organic CMOS Digital and Analog Circuits With a
Floating Gate for Process Variation Compensation and a 100-V Organic pMOS Rectifier," IEEE Journal of
Solid-State Circuits, Vol.47, No.1, pp. 301-309, Jan. 2012.
[59] M. Daito, Y. Nakata, S. Sasaki, H. Gomyo, H. Kusamitsu, Y. Komoto, K. Iizuka, K. Ikeuchi, G. -S. Kim, M.
Takamiya, and T. Sakurai, "Capacitively Coupled Non-Contact Probing Circuits for Membrane-Based
Wafer-Level Simultaneous Testing," IEEE Journal of Solid-State Circuits, Vol.46, No.10, pp. 2386-2395,
Oct. 2011.
[60] T. Yasufuku, Y. Nakamura, Z. Piao, M. Takamiya, and T. Sakurai, "Power Supply Voltage Dependence ofWithin-Die Delay Variation of Regular Manual Layout and Irregular Place-and-Route Layout," IEICE
Transaction on Electronics, E94-C, No.6, pp. 1072-1075, June 2011.
[61] K. Ikeuchi, H. Kusamitsu, M. Daito, G. -S. Kim, M. Takamiya, and T. Sakurai, "1 Gb/s, 50um X 50um Pads
on Board Wireless Connector Based on Track-and-Charge Scheme Allowing Contacted Signaling," IEICE
Transaction on Electronics, E94-C, No.6, pp. 992-998, June 2011.
[62] L. Liu, T. Sakurai, and M. Takamiya, "0.6V Voltage Shifter and Clocked Comparator for Sampling
Correlation-Based Impulse Radio UWB Receiver," IEICE Transaction on Electronics, E94-C, No.6, pp.
985-991, June 2011.
[63] X. Zhang, Y. Pu, K. Ishida, Y. Ryu, Y. Okuma, P. -H. Chen, T. Sakurai, and M. Takamiya, "A Variable
Output Voltage Switched- Capacitor DC-DC Converter with Pulse Density and Width Modulation (PDWM)
for 57% Ripple Reduction at Low Output Voltage," IEICE Transaction on Electronics, E94-C, No.6, pp.
953-959, June 2011.
[64] Y. Okuma, K. Ishida, Y. Ryu, X. Zhang, P. -H. Chen, K. Watanabe, M. Takamiya, and T. Sakurai, "0.5-V
Input Digital Low-Dropout Regulator (LDO) with 98.7% Current Efficiency in 65nm CMOS," IEICE
Transaction on Electronics, E94-C, No.6, pp. 938-944, June 2011.
[65] K. Ishida, T. Yasufuku, S. Miyamoto, H. Nakai, M. Takamiya, T. Sakurai, and K. Takeuchi, "1.8 V
Low-Transient-Energy Adaptive Program-Voltage Generator Based on Boost Converter for 3D-Integrated
NAND Flash SSD," IEEE Journal of Solid-State Circuits, Vol.46, No.6, pp. 1478-1487, June 2011.
[66] L. Liu, T. Sakurai, and M. Takamiya, "A Charge-Domain Auto- and Cross-Correlation Based Data
Synchronization Scheme With Power-and Area-Efficient PLL for Impulse Radio UWB Receiver," IEEE
Journal of Solid-State Circuits, Vol.46, No.6, pp. 1349-1359, June 2011.
[67] Y. Pu, X. Zhang, K. Ikeuchi, A. Muramatsu, A. Kawasumi, M. Takamiya, M. Nomura, H. Shinohara, and T.
Sakurai, "Post-Silicon Clock Deskew Employing Hot-Carrier Injection Trimming With On-Chip Skew
Monitoring and Auto-Stressing Scheme for Sub/Near Threshold Digital Circuits," IEEE Transactions on
Circuits and Systems-II, Vol. 58, No. 5, pp. 294-298, May 2011.
[68] T. Yokota, T. Nakagawa, T. Sekitani, Y. Noguchi, K. Fukuda, U. Zschieschang, H. Klauk, K. Takeuchi, M.
Takamiya, T. Sakurai, and T. Someya, "Control of Threshold Voltage in Low-Voltage Organic
Complementary Inverter Circuits with Floating Gate Structures," Applied. Physics. Letters, 98, 193302, May
2011.
[69] P. -H. Chen, K. Ishida, X. Zhang, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai, "0.18-V Input Charge
Pump with Forward Body Bias to Startup Boost Converter for Energy Harvesting Applications," IEICE
Transaction on Electronics, E94-C, No.4, pp.598-604, Apr. 2011.
[70] K. Johguchi, T. Hatanaka, K. Ishida, T. Yasufuku, M. Takamiya, T. Sakurai, and K. Takeuchi,"Through-Silicon Via Design for a 3-D Solid-State Drive System With Boost Converter in a Package," IEEE
7

Transaction on Components, Packaging and Manufacturing Technology, Vol.1, No.2, pp. 269-277, Feb.
2011.
[71] K. Ishida, N. Masunaga, R. Takahashi, T. Sekitani, S. Shino, U. Zschieschang, H. Klauk, M. Takamiya, T.
Someya, and T. Sakurai, "User Customizable Logic Paper (UCLP) with Sea-of Transmission-Gates (SOTG)
of 2-V Organic CMOS and Ink-Jet Printed Interconnects," IEEE Journal of Solid-State Circuits, Vol.46,
No.1, pp. 285-292, Jan. 2011.
[72] L. Liu, Z. Zhou, T. Sakurai, and M. Takamiya, "A 1.76mW, 100Mbps Impulse Radio UWB Receiver with
Multiple Sampling Correlators Eliminating Need for Phase Synchronization in 65-nm CMOS," IEICE
Transaction on Electronics, E93-C, No.6, pp. 796-802, June 2010.
[73] Y. Kato, T. Sekitani, Y. Noguchi, T. Yokota, M. Takamiya, T. Sakurai and T, Someya, "Large-Area Flexible
Ultrasonic Imaging System With an Organic Transistor Active Matrix," IEEE Transactions on Electron
Devices, Vol. 57, No. 5, pp. 995 - 1002, May 2010.
[74] T. Yasufuku, T. Niiyama, Z. Piao, K. Ishida, M. Murakata, M. Takamiya, and T. Sakurai, "Difficulty ofPower Supply Voltage Scaling in Large Scale Subthreshold Logic Circuits,"IEICE Transaction on
Electronics, E93-C, No.3, pp.332-339, March 2010.
[75] T. Yasufuku, K. Ishida, S. Miyamoto, H. Nakai, M. Takamiya, and T. Sakurai, "Inductor and TSV Design of
20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories ,"IEICE
Transaction on Electronics, E93-C, No.3, pp.317-323, March 2010.
[76] K. Ishida, N. Masunaga, Z. Zhou, T. Yasufuku, T. Sekitani, U. Zschieschang, H. Klauk, M. Takamiya, T.
Someya, and T. Sakurai, "Stretchable EMI Measurement Sheet With 8 X 8 Coil Array, 2 V Organic CMOS
Decoder, and 0.18 um Silicon CMOS LSIs for Electric and Magnetic Field Detection," IEEE Journal of
Solid-State Circuits, Vol. 45, No. 1, pp. 249-259, Jan. 2010.
[77] T. Sekitani, T. Yokota, U. Zschieschang, H. Klauk, S. Bauer, K. Takeuchi, M. Takamiya, T. Sakurai, and T.
Someya, "Organic Nonvolatile Memory Transistors for Flexible Sensor Arrays," Science, Vol. 326, pp. 1516
- 1519, Dec. 2009.
[78] L. Liu, M. Takamiya, T. Sekitani, Y. Noguchi, S. Nakano, K. Zaitsu, T. Kuroda, T. Someya, and T. Sakurai,"A 107-pJ/bit 100-kb/s 0.18-um Capacitive-Coupling Transceiver With Data Edge Signaling and DCPower-Free Pulse Detector for Printable Communication Sheet," IEEE Transactions on Circuits andSystems―I: Regular Papers, Vol. 56, No. 11, pp. 2511 - 2518, Nov. 2009.
[79] G.-S. Kim, M. Takamiya, and T. Sakurai, "A 25-mV-Sensitivity 2-Gb/s Optimum-Logic-Threshold
Capacitive-Coupling Receiver for Wireless Wafer Probing Systems,"IEEE Transactions on Circuits andSystems―II: Express Briefs, Vol. 56, No. 9, pp. 709 - 713, Sep. 2009.
[80] L. Liu, Y. Miyamoto, Z. Zhou, K. Sakaida, J. Ryu, K. Ishida, M. Takamiya, and T. Sakurai, "A 100Mbps,
4.1pJ/bit Threshold Detection-Based Impulse Radio UWB Transceiver in 90nm CMOS ," IEICE Transaction
on Electronics, E92-C, No.6, pp.769-776, June 2009.
[81] T. Sekitani, K. Zaitsu, Y. Noguchi, K. Ishibe, M. Takamiya, T. Sakurai, and T. Someya, "Printed Nonvolatile
Memory for a Sheet-Type Communication System ," IEEE Transactions on Electron Devices, Vol. 56, No. 5,
pp. 1027 - 1035, May 2009.
[82] Y. Nakamura, M. Takamiya, and T. Sakurai, "An On-Chip Noise Canceller with High Voltage Supply Lines
for Nanosecond-Range Power Supply Noise," IEICE Transaction on Electronics, E92-C, No.4, pp.468-472,
April 2009.
[83] M. Takamiya and T. Sakurai, "Low Power VLSI Circuit Design with Fine-Grain Voltage Engineering," IPSJ
Transactions on System LSI Design Methodology, Vol. 2, pp. 18 - 29, Feb. 2009. (Invited)[84] D. Levacq, M. Takamiya, and T. Sakurai, "Backgate Bias Accelerator for sub-100 ns Sleep-to-Active Modes
Transition Time," IEEE Journal of Solid-State Circuits, Vol. 43, No. 11, pp. 2390 - 2395, Nov. 2008.
[85] K. Onizuka, K. Inagaki, H. Kawaguchi, M. Takamiya, and T. Sakurai, "Stacked-Chip Implementation of
On-Chip Buck Converter for Distributed Power Supply System in SiPs," IEEE Journal of Solid-State
Circuits, Vol. 42, No. 11, pp. 2404 - 2410, Nov. 2007.

8

[86] K. Ishida, A. Tamtrakarn, H. Ishikuro, M. Takamiya, and T. Sakurai, "An Outside-Rail Opamp Design
Relaxing Low-Voltage Constraint on Future Scaled Transistors," IEICE Transaction on Electronics, E90-C,
No.4, pp.786-792, April 2007.
[87] Y. Kato, T. Sekitani, M. Takamiya, M. Doi, K. Asaka, T. Sakurai, and T. Someya, "Sheet-Type BrailleDisplays by Integrating Organic Field-Effect Transistors and Polymeric Actuators ”, IEEE Transactions on
Electron Devices, Vol. 54, No. 2, pp. 202 - 209, Feb. 2007.
[88] M. Takamiya, T. Sekitani, Y. Kato, H. Kawaguchi, T. Someya, and T. Sakurai, "An Organic FET SRAM
with Back Gate to Increase Static Noise Margin and its Application to Braille Sheet Display," , IEEE Journalof Solid-State Circuits, Vol. 42, No. 1, pp. 93 - 100, Jan. 2007.
[89] K. Onizuka, H. Kawaguchi, M. Takamiya, and T. Sakurai, "VDD-Hopping Accelerators for On-Chip Power
Supply Circuit to Achieve Nanosecond-Order Transient Time," IEEE Journal of Solid-State Circuits, Vol.
41, No. 11, pp. 2382 - 2389, Nov. 2006.
[90] S. Iba, T. Sekitani, Y. Kato, T. Someya, H. Kawaguchi, M. Takamiya, T. Sakurai, and, S. Ta-kagi, "Controlof Threshold Voltage of Organic Field-Effect Transistors with Double Gate Structure," Applied Physics
Letters, 87, 023509, July 2005.
[91] M. Takamiya and M. Mizuno, “A 6.7-fF/um2 Bias-Independent Gate Capacitor (BIGCAP) with Digital
CMOS Process and its Application to the Loop Filter of a Differential PLL”, IEEE Journal of Solid-State
Circuits, Vol. 40, No. 3, pp. 719 - 725, Mar. 2005.
[92] M. Takamiya and T. Hiramoto, “High Drive-Current Electrically Induced Body Dynamic Threshold SOI
MOSFET (EIB-DTMOS) with Large Body Effect and Low Threshold Voltage”, IEEE Transactions on
Electron Devices, Vol. 48, No. 8, pp. 1633 - 1640, Aug. 2001.
[93] T. Hiramoto, M. Takamiya, H. Koura, T. Inukai, H. Gomyo, H. Kawaguchi, and T. Sakurai, “Optimum
Device Parameters and Scalability of Variable Threshold Voltage Complementary MOS (VTCMOS)”,Japanese Journal of Applied Physics, Vol. 40, Part 1, No. 4B, pp. 2854 - 2858, April, 2001.
[94] Y. Yasuda, M. Takamiya, and T. Hiramoto, “Threshold Voltage Fluctuations Induced by Statistical“Position” and “Number” Impurity Fluctuations in Bulk MOSFETs”, Superlattices and Microstructures, Vol.
28, No. 5/6, pp. 357 - 361, November/December, 2000.
[95] Y. Yasuda, M. Takamiya, and T. Hiramoto, “Separation of Effects of Statistical Impurity Number
Fluctuations and Position Distribution on Vth Fluctuations in Scaled MOSFETs”, IEEE Transactions on
Electron Devices, Vol. 47, No. 10, pp. 1838 - 1842, October, 2000.
[96] H. Koura, M. Takamiya, and T. Hiramoto, “Optimum Conditions of Body Effect Factor and Substrate Bias in
Variable Threshold Voltage MOSFETs” Japanese Journal of Applied Physics, Vol. 39, No. 4B, pp. 2312 2317, April, 2000.
[97] T. Hiramoto and M. Takamiya, “Low Power and Low Voltage MOSFETs with Variable Threshold Voltage
Controlled by Back-Bias”, IEICE Transaction on Electronics, E83-C, pp.161-169, Feb. 2000. (Invited Paper)[98] T. N. Duyet, H. Ishikuro, Y. Shi, T. Saraya, M. Takamiya, and T. Hiramoto, "Measurement of Energetic andLateral Distribution of Interface State Density in Fully-Depleted Silicon on Insulator Metal-Semiconductor
Field-Effect Transistors", Japanese Journal of Applied Physics, Vol. 38, No. 4B, pp. 2496 - 2500, April,
1999.
[99] M. Takamiya, T. Saraya, T. N. Duyet, Y. Yasuda, and T. Hiramoto, “High Performance Accumulated
Back-Interface Dynamic Threshold SOI MOSFET’s (AB-DTMOS) with Large Body Effect at Low Supply
Voltage”, Japanese Journal of Applied Physics, Vol.38, Part 1, No. 4B, pp.2483-2486, April 1999.
[100] T. Mukaiyama, K. Saito, H. Ishikuro, M. Takamiya, T. Saraya, and T. Hiramoto, "Fabrication of Gate-All
Around MOSFET by Silicon Anisotropic Etching Technique", Solid State Electronics, Vol. 42, No. 7-8, pp.
1623 - 1626, July - August, 1998.
[101] T. N. Duyet, H. Ishikuro, M. Takamiya, T. Saraya, and T. Hiramoto, "Suppression of GeometricComponent of Charge Pumping Current in Thin Film SOI MOSFET", Japanese Journal of Applied Physics,
Part 2, Vol. 37, No. 7B, pp. L855 - L858, July, 1998.

9[102] T. Saraya, M. Takamiya, T.N. Duyet, and T. Hiramoto, "New Measurement Technique of Sub-Bandgap
Impact Ionization Current by Transient Characteristics of Partially Depleted SOI MOSFETs", Japanese
Journal of Applied Physics, Vol. 37, Part 1, No. 3B, pp. 1271 - 1273, March, 1998.

(C) Conference Papers[1] H. Zhou, T. Inuma, D. Zhang, K. Hata, and M. Takamiya, “Variable Gate Current Range Digital Gate Driver
IC Always Providing 6-bit Controllability in Various IGBTs” IEEE Applied Power Electronics Conference
and Exposition (APEC), Long Beach, USA, pp. 1125-1129, Feb. 2024.
[2] H. Zhang, D. Zhang, K. Hata, K. Wada, K. Akatsu, I. Omura, and M. Takamiya, "Fully Integrated
Overcurrent Protection Method During SiC MOSFET Conduction," IEEE Southern Power Electronics
Conference (SPEC), Florianopolis, Brazil, pp. 1-8, Dec. 2023.
[3] H. Qiu, X. Zhang, J. Chen, Y. Shi, and M. Takamiya, "Transmitter IC Enabling Magnetic Field Shaping forHigh-Efficiency Wireless Charging of Multiple Receivers," IEEE International Conference on ASIC
(ASICON), Nanjing, China, pp. 1-4, Oct. 2023.
[4] H. Zhang, D. Zhang, H. Yamasaki, K. Hata, K. Wada, K. Akatsu, I. Omura, and M. Takamiya, "Gate Driver
IC with Fully Integrated Overcurrent Protection Function by Measuring Gate-to-Emitter Voltage During
IGBT Conduction," IEEE International Symposium on Power Semiconductor Devices and ICs (ISPSD),
Hong Kong, pp. 76 – 79, May 2023.
[5] D. Zhang, K. Horii, K. Hata, and M. Takamiya, "Digital Gate Driver IC with Real-Time Gate Current
Change by Sensing Drain Current to Cope with Operating Condition Variations of SiC MOSFET," 11th
International Conference on Power Electronics – ECCE Asia (ICPE 2023-ECCE Asia), Jeju, Korea, pp.
374-380, May 2023.
[6] D. Zhang, K. Horii, K. Hata, and M. Takamiya, "Digital Gate ICs for Driving and Sensing Power Devices toAchieve Low-Loss, Low-Noise, and Highly Reliable Power Electronic Systems," IEEE Custom Integrated
Circuits Conference (CICC), San Antonio, USA, pp. 1-7, April 2023. (Invited)[7] M. Takamiya, "Digital Transformation of Power Electronics Towards Carbon-Free World in 2050," Three
Corners Power Electronics Extended Collaboration (3C-PEEC) Workshop, Arlington, USA, April 2023.
[8] D. Zhang, K. Horii, K. Hata, and M. Takamiya, "Digital Gate Driver IC with Fully Integrated Automatic
Timing Control Function in Stop-and-Go Gate Drive for IGBTs," IEEE Applied Power Electronics
Conference and Exposition (APEC), Orlando, USA, pp. 1225-1231, March 2023.
[9] K. Hata, S. Suzuki, K. Watanabe, K. Nagayoshi, and M. Takamiya, "2-Phase Series Capacitor Synchronous
Rectifier in Active Clamp Forward Converter," IEEE Applied Power Electronics Conference and Exposition(APEC), Orlando, USA, pp. 906-911, March 2023.
[10] T. Inuma, K. Hata, T. Sai, W. Saito, and M. Takamiya, "Two Stop-and-Go Gate Driving to Reduce
Switching Loss and Switching Noise in Automotive IGBT Modules," IEEE Southern Power Electronics
Conference (SPEC), Nadi, Fiji, pp. 1-7, Dec. 2022.
[11] H. Zhang, H. Yamasaki, K. Hata, I. Omura, and M. Takamiya, "Overcurrent Detection Method by
Monitoring Gate Voltage While Periodically Repeating Discharging and Charging of Constant Gate Charge
in IGBTs," IEEE Southern Power Electronics Conference (SPEC), Nadi, Fiji, pp. 1-5, Dec. 2022.
[12] K. Horii, R. Morikawa, K. Hata, K. Morokuma, Y. Wada, Y. Obiraki, Y. Mukunoki, and M. Takamiya,"Sub-0.5 ns Step, 10-bit Time Domain Digital Gate Driver IC for Reducing Radiated EMI and Switching
Loss of SiC MOSFETs," IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 1-8,
Oct. 2022.
[13] H. Yamasaki, K. Hata, and M. Takamiya, "Estimation of Both Junction Temperature and Load Current of
IGBTs from Output Voltage of Gate Driver," International Power Electronics Conference (IPEC-Himeji
2022 -ECCE Asia-), Himeji, Japan, pp. 453-460, May 2022.
[14] K. Horii, K. Hata, R. Wang, W. Saito, and M. Takamiya, "Large Current Output Digital Gate Driver Using
Half-Bridge Digital-to-Analog Converter IC and Two Power MOSFETs," IEEE International Symposium on
Power Semiconductor Devices and ICs (ISPSD), Vancouver, Canada, pp. 293 – 296, May 2022.
10

[15] K. Horii, R. Morikawa, R. Katada, K. Hata, T. Sakurai, S. Hayashi, K. Wada, I. Omura, and M. Takamiya,"Equalization of DC and Surge Components of Drain Current of Two Parallel-Connected SiC MOSFETs
Using Single-Input Dual-Output Digital Gate Driver IC," IEEE Applied Power Electronics Conference andExposition (APEC), Houston, USA, pp. 1406-1412, March 2022.
[16] K. Hata, S. Suzuki, and M. Takamiya, "Dual-Path Hybrid Synchronous Rectifier in Active Clamp Forward
Converter for Inductor Current Reduction," IEEE Applied Power Electronics Conference and Exposition(APEC), Houston, USA, pp. 1011-1015, March 2022.
[17] R. Katada, K. Hata, Y. Yamauchi, T. -W. Wang, R. Morikawa, C. -H. Wu, T. Sai, P. -H. Chen, and M.
Takamiya, "Digital Gate Driving (DGD) is Double-Edged Sword: How to Avoid Huge Voltage Overshoots
Caused by DGD for GaN FETs," IEEE Energy Conversion Congress & Exposition (ECCE), Virtual, pp.
5412-5416, Oct. 2021.
[18] M. Takamiya, "Digitalized Power Electronics for Incorporating IoT and AI," International Conference on
Solid State Devices and Materials (SSDM), Virtual, pp. 712-713, Sep. 2021. (Invited)[19] H. Qiu and M. Takamiya, "A 6.78 MHz Wireless Power Transfer System for Simultaneous Charging ofMultiple Receivers with Maximum Efficiency using Adaptive Magnetic Field Distributor IC," IEEE
Symposium on VLSI Circuits, Virtual, pp. 1-2, June 2021.
[20] K. Hata, Y. Jiang, M. -K. Law, and M. Takamiya, "Always-Dual-Path Hybrid DC-DC Converter Achieving
High Efficiency at Around 2:1 Step-Down Ratio," IEEE Applied Power Electronics Conference andExposition (APEC), Virtual, pp. 1302-1307, June 2021.
[21] R. Katada, K. Hata, Y. Yamauchi, T. -W. Wang, R. Morikawa, C. -H. Wu, T. Sai, P. -H. Chen, and M.
Takamiya, "5 V, 300 MSa/s, 6-bit Digital Gate Driver IC for GaN Achieving 69 % Reduction of Switching
Loss and 60 % Reduction of Current Overshoot," The Institute of Electrical Engineers of Japan, 33rd
International Symposium on Power Semiconductor Devices and ICs (ISPSD), Virtual, pp. 55 – 58, May
2021.
[22] H. Yamasaki, R. Katada, K. Hata, and M. Takamiya, "Momentary High-Z Gate Driving (MHZGD) at Miller
Plateau for IGBT Load Current Estimation from Gate Driver," IEEE Energy Conversion Congress &Exposition - Asia (ECCE Asia), Virtual, pp. 1698-1704, May 2021.
[23] R. Morikawa, T. Sai, K. Hata, and M. Takamiya, "New Gate Driving Technique Using Digital Gate Driver
IC to Reduce Both EMI in Specific Frequency Band and Switching Loss in IGBTs," 2020 IEEE 9thInternational Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), Nanjing, China,
pp. 644-651, Nov., 2020.
[24] R. Kurniawan, T. Fukudome, H. Qiu, M. Takamiya, Y. Kawahara, J. Yang, and R. Niiyama, "An Untethered
216-mg Insect-Sized Jumping Robot with Wireless Power Transmission," IEEE/RSJ International
Conference on Intelligent Robots and Systems (IROS), Las Vegas, USA, pp. 7881-7886, Oct. 2020.
[25] R. Morikawa, T. Sai, K. Hata, and M. Takamiya, "Automatic Generation of Gate Driving Vectors for Digital
Gate Drivers to Satisfy EMI Regulations," IEEE Energy Conversion Congress & Exposition (ECCE),
Detroit, USA, pp. 4931-4936, Oct. 2020.
[26] T. -W. Wang, T. Sai, R. Morikawa, K. Hata, T. Sakurai, P. -H. Chen, and M. Takamiya, "Automatic Search
Method of Robust Gate Driving Vectors for Digital Gate Drivers Against Variations in Operating Conditionsof IGBT’s," IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 3798-3802, Oct.
2020.
[27] D. Yamaguchi, Y. S. Cheng, T. Mannen, H. Obara, K. Wada, T. Sai, M. Takamiya, and T. Sakurai, "Digital
Active Gate Control for a Three-Phase Inverter Circuit for a Surge Voltage Suppression and Switching Loss
Reduction," IEEE Energy Conversion Congress & Exposition (ECCE), Detroit, USA, pp. 3782-3787, Oct.
2020.
[28] H. Yamasaki, K. Miyazaki, Y. Lo, A. K. M. M. Islam, K. Hata, T. Sakurai, and M. Takamiya, "Power Device
Degradation Estimation by Machine Learning of Gate Waveforms," International Conference on Simulationof Semiconductor Processes and Devices (SISPAD), Virtual conference, pp. 335 - 338, Sep. 2020. (Invited)11[29] M. Takamiya, "Injecting Digital into Power Electronics: Programmable Digital Gate Driver IC for Power
Transistors," IEEE International Symposium on Radio-Frequency Integration Technology (RFIT),
Hiroshima, p. 241, Sep. 2020. (Invited)[30] H. Qiu, T. Sai, and M. Takamiya, "A 6.78 MHz Wireless Power Transfer System Enabling Perpendicular
Wireless Powering with Efficiency Increase from 0.02% to 48.2% by Adaptive Magnetic Field Adder IC
Integrating Shared Coupling Coefficient Sensor," IEEE Symposium on VLSI Circuits, Hawaii, pp. 1-2, June
2020.
[31] T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, T. Sakurai, and M. Takamiya, "Stop-and-Go
Gate Drive Minimizing Test Cost to Find Optimum Gate Driving Vectors in Digital Gate Drivers," IEEE
Applied Power Electronics Conference and Exposition (APEC), New Orleans, USA, pp. 3096-3101, March
2020.
[32] K. Hata, Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, "48V-to-12V Dual-Path Hybrid DC-DC
Converter," IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, USA, pp.
2279-2284, March 2020.
[33] H. Qiu, Y. Narusue, Y. Kawahara, T. Sakurai, and M. Takamiya, "Distance Detection System for Digital
Transmitter Coil Achieving Distance-Variation-Tolerant Wireless Power Transfer," IEEE Southern PowerElectronics Conference (SPEC), Santos, Brazil, pp. 830-835, Dec. 2019.
[34] T. Mannen, D. Yamaguchi, K. Wada, H. Obara, T. Sai, K. Miyazaki, M. Takamiya, and T. Sakurai, "Eﬀect
on Digital Active Gate Control of a Practical IGBT Full-Bridge Inverter with the Additional DC-Link
Capacitor Close to Power Devices," IEEE International Future Energy Electronics Conference (IFEEC),
Singapore, pp. 95-100, Nov. 2019.
[35] T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, T. Sakurai, and M. Takamiya, "Robust Gate
Driving Vectors to Load Current and Temperature Variations for Digital Gate Drivers," IEEE International
Future Energy Electronics Conference (IFEEC), Singapore, pp. 87-94, Nov. 2019.
[36] Y. Cheng, D. Yamaguchi, T. Mannen, K. Wada, T. Sai, K. Miyazaki, M. Takamiya, and T. Sakurai, "Digital
Active Gate Drive with Optimal Switching Patterns to Adapt to Sinusoidal Output Current in a Full Bridge
Inverter Circuit," 45th Annual Conference of the IEEE Industrial Electronics Society (IECON), Lisbon,
Portugal, pp. 1684-1689, Oct. 2019.
[37] T. Sai, K. Miyazaki, H. Obara, T. Mannen, K. Wada, I. Omura, M. Takamiya, and T. Sakurai, "Load Current
and Temperature Dependent Optimization of Active Gate Driving Vectors," IEEE Energy Conversion
Congress & Exposition (ECCE), Baltimore, USA, pp. 3292-3297, Sep. 2019.
[38] H. Obara, T. Mannen, K. Wada, K. Miyazaki, T. Sai, M. Takamiya, and T. Sakurai, "Design and
Implementation of Digital Active Gate Control with Variable 63-level Drivability Controlled by Serial 4-bit
Signals," IEEE Energy Conversion Congress & Exposition (ECCE), Baltimore, USA, pp. 2408-2412, Sep.
2019.
[39] K. Miyazaki, Y. Lo, A. K. M. M. Islam, K. Hata, M. Takamiya, and T. Sakurai, "CNN-based Approach for
Estimating Degradation of Power Devices by Gate Waveform Monitoring," IEEE International Conference
on IC Design and Technology (ICICDT), Suzhou, China, pp. 104-107, June 2019.
[40] T. Kagaya, K. Miyazaki, M. Takamiya, and T. Sakurai, "A 500-Mbps Digital Isolator Circuits using
Counter-Pulse Immune Receiver Scheme for Power Electronics," IEEE International Conference on IC
Design and Technology (ICICDT), Suzhou, China, pp. 70-73, June 2019.
[41] K. Miyazaki, K. Wada, I. Omura, M. Takamiya, and T. Sakurai, "Gate Waveform Optimization in
Emergency Turn-off of IGBT Using Digital Gate Driver," 10th International Conference on PowerElectronics – ECCE Asia (ICPE 2019-ECCE Asia), Busan, Korea, pp. 3292-3296, May 2019.
[42] H. Qiu, T. Sakurai, and M. Takamiya, "Coupling-Dependent Data Flipping in Wireless Power and Data
Transfer System," IEEE International Symposium for Circuits and Systems (ISCAS), Sapporo, Japan, pp. 1 5, May 2019.
[43] Y. S. Cheng, T. Mannen, K. Wada, K. Miyazaki, M. Takamiya, and T. Sakurai, "High-Speed Searching of
Optimum Switching Pattern for Digital Active Gate Drive Circuit of Full Bridge Inverter Circuit," IEEE
12

Applied Power Electronics Conference and Exposition (APEC), Anaheim, USA, pp. 2740-2745, March
2019.
[44] H. Qiu, Y. Uno, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M. Takamiya,"Luciola: A Light-Emitting Particle Moving in Mid-Air Based On Ultrasonic Levitation and WirelessPowering," 11th ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive
Techniques in Asia (SIGGRAPH Asia), Emerging Technologies, Tokyo, pp. 1 - 2, Dec. 2018.
[45] T. Sai, Y. Yamauchi, H. Kando, T. Funaki, T. Sakurai, and M. Takamiya, "Spike Noise Cancelling Circuit
for Switched Capacitor DC-DC Converter Mounting MLCCs on CMOS Die," IEEE International Workshop
on Power Supply on Chip (PwrSoC), Hsinchu, Taiwan, pp. 63 - 64, Oct. 2018.
[46] Y. Uno, H. Qiu, T. Sai, S. Iguchi, Y. Mizutani, T. Hoshi, Y. Kawahara, Y. Kakehi, and M. Takamiya,“Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based On Acoustic Levitation andWireless Powering,” ACM International Joint Conference on Pervasive and Ubiquitous Computing(UbiComp), Singapore, Oct. 2018.
[47] Y. S. Cheng, T. Mannen, K. Wada, K. Miyazaki, M. Takamiya, and T. Sakurai, "Optimization Platform to
Find a Switching Pattern of Digital Active Gate Drive for Full-Bridge Inverter Circuit," IEEE Energy
Conversion Congress & Exposition (ECCE), Portland, USA, pp. 6441 -6447, Sep. 2018.
[48] H. Qiu, Y. Narusue, Y. Kawahara, T. Sakurai, and M. Takamiya, "Digital Coil: Transmitter Coil with
Programmable Radius for Wireless Powering Robust Against Distance Variation," IEEE Wireless Power
Transfer Conference (WPTC), Montreal, Canada, pp. 1-4, June 2018.
[49] T. Someya, A.K.M. M. Islam, T. Sakurai, and M. Takamiya, "A 13nW Temperature-to-Digital Converter
Utilizing Sub-threshold MOSFET Operation at Sub-thermal Drain Voltage," IEEE Custom Integrated
Circuits Conference (CICC), San Diego, USA, pp. 1-4, April 2018.
[50] T. Mannen, K. Wada, H. Obara, K. Miyazaki, M. Takamiya, and T. Sakurai, "Active Gate Control for
Switching Waveform Shaping Irrespective of the Circuit Stray Inductance in a Practical Full-Bridge IGBT
Inverter," IEEE Applied Power Electronics Conference and Exposition (APEC), San Antonio, USA, pp.
3108-3113, March 2018.
[51] M. Takamiya, K. Miyazaki, H. Obara, T. Sai, K. Wada, and T. Sakurai, "Power Electronics 2.0:
IoT-Connected and AI-Controlled Power Electronics Operating Optimally for Each User," The Institute ofElectrical Engineers of Japan, 29th International Symposium on Power Semiconductor Devices and ICs(ISPSD), Sapporo, pp. 29 - 32, May 2017. (Invited)[52] Y. Yamauchi, T. Sai, T. Sakurai, and M. Takamiya, "Modeling of 3-Level Buck Converters in Discontinuous
Conduction Mode for Stand-by Mode Power Supply," IEEE International Symposium for Circuits andSystems (ISCAS), Baltimore, USA, pp. 1282 - 1285, May 2017.
[53] C.-S. Wu, M. Takamiya, and T. Sakurai, "Buck Converter with Higher Than 87% Efficiency over 500nA to
20mA Load Current Range for IoT Sensor Nodes by Clocked Hysteresis Control," IEEE Custom Integrated
Circuits Conference (CICC), Austin, USA, pp. 1 - 4, April 2017.
[54] H. Obara, K. Wada, K. Miyazaki, M. Takamiya, and T. Sakurai, "Active Gate Control in Half-Bridge
Inverters Using Programmable Gate Driver ICs to Improve Both Surge Voltage and Switching Loss," IEEE
Applied Power Electronics Conference and Exposition (APEC), Tampa, USA, pp. 1153-1159, March 2017.
[55] K. Miyazaki, I. Omura, M. Takamiya, and T. Sakurai, "20-ns Short-Circuit Detection Scheme with High
Variation-Tolerance based on Analog Delay Multiplier Circuit for Advanced IGBTs," IEEE Southern PowerElectronics Conference (SPEC), Auckland, New Zealand, pp. 1 -4, Dec. 2016.
[56] T. Someya, K. Matsunaga, H. Morimura, T. Sakurai, and M. Takamiya, "56-Level Programmable Voltage
Detector in Steps of 50mV for Battery Management," IEEE Asian Solid-State Circuits Conference(A-SSCC), Toyama, Japan, pp. 49-52, Nov. 2016.
[57] M. Takamiya, "Circuits and System Technologies for Organic Electronics," Short Course in International
Conference on Solid State Devices and Materials (SSDM), Tsukuba, Japan, Sep. 2016. (Invited)13

[58] K. Miyazaki, M. Takamiya, and T. Sakurai, "Automatic Optimization of IGBT Gate Driving Waveform
Using Simulated Annealing for Programmable Gate Driver IC," IEEE Energy Conversion Congress &Exposition (ECCE), Milwaukee, USA, pp. 1 -6, Sep. 2016.
[59] H. Ohta, M. Honda, and M. Takamiya, "Interventional Placement of Thin Coil Shaped Implants PoweredWirelessly for Monitoring Vital Signals and Controlling Abnormal Activities by Electro-Stimulation," IEEE
38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC),
Orlando, USA, pp. 3035-3038, Aug 2016.
[60] A.K.M. M. Islam, H. Fuketa, K. Ishida, T. Yokota, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai,"Sensor and Circuit Solutions for Organic Flexible Electronics," Society for Information Display (SID)
International Symposium, San Francisco, USA, pp. 629-632, May 2016. (Invited)[61] K. Miyazaki, S. Abe, M. Tsukuda, I. Omura, K. Wada, M. Takamiya, and T. Sakurai, "General-Purpose
Clocked Gate Driver (CGD) IC with Programmable 63-Level Drivability to Reduce Ic Overshoot andSwitching Loss of Various Power Transistors," IEEE Applied Power Electronics Conference and Exposition(APEC), Long Beach, USA, pp. 1640 -1645, March 2016.
[62] S. Iguchi, T. Sakurai, and M. Takamiya, "A 39.25MHz 278dB FOM 19µW LDO-Free Stacked-Amplifier
Crystal Oscillator (SAXO) Operating at I/O Voltage," IEEE International Solid-State Circuits Conference(ISSCC), San Francisco, USA, pp. 100-101, Feb. 2016.
[63] M. Honda, T. Sakurai, and M. Takamiya, "Wireless Temperature and Illuminance Sensor Nodes With
Energy Harvesting from Insulating Cover of Power Cords for Building Energy Management System," IEEE
Asia-Pacific Power and Energy Engineering Conference (APPEEC), Brisbane, Australia, PES-APPEEC-255,
pp. 1-5, Nov. 2015.
[64] T. Someya, H. Fuketa, K. Matsunaga, H. Morimura, T. Sakurai, and M. Takamiya, "248pW, 0.11mV/°C
Glitch-Free Programmable Voltage Detector With Multiple Voltage Duplicator for Energy Harvesting", 41th
European Solid-State Circuits Conference (ESSCIRC), Graz, Austria, pp. 249-252, Sep. 2015.
[65] D. Luo, H. Fuketa, K. Matsunaga, H. Morimura, M. Takamiya, and T. Sakurai, "Analysis to Optimize
Sensitivity of RF Energy Harvester with Voltage Boost Circuit," IEEE 22nd European Conference on Circuit
Theory and Design (ECCTD), Trondheim, Norway, pp. 1-4, Aug. 2015.
[66] Y. Yamauchi, Y. Yanagihara, H. Fuketa, T. Sakurai, and M. Takamiya, "Optimal Design to Maximize
Efficiency of Single-Inductor Multiple-Output Buck Converters in Discontinuous Conduction Mode for IoT
Applications," IEEE International Conference on IC Design and Technology (ICICDT), Leuven, Belgium,
pp. 1-4, May 2015.
[67] M. Takamiya, "Energy Efficient Design and Energy Harvesting for Energy Autonomous Systems," IEEE
International Symposium on VLSI Design, Automation and Test (2015 VLSI-DAT), Hsinchu, Taiwan,
DSS13, pp. 1 - 3, April 2015. (Invited)[68] T. Yokota, W. Yukita, J. Reeder, H. Fuketa, M. Hamamatsu, T. Someya, W. Voit, M. Takamiya, T. Sekitani,
T. Sakurai, and T. Someya, "Organic Complementary Circuits With Thin Parylene Gate Dielectric for a
Flexible Fever Alarm System," Material Research Society (MRS) Spring Meeting, II5.03, San Francisco,USA, April 2015.
[69] Y. Kondo, Y. Yazaki, M. Sonehara, T. Sato, T. Watanabe, Y. Seino, N. Matsushita, T. Fujii, K. Kobayashi,
H. Shimizu, Y. Yanagisawa, T. Someya, H. Fuketa, M. Takamiya, and T. Sakurai, "Embedded Planar Power
Inductor Technology for Package-level DC Power Grid," International Conference on Electronic Packaging
and iMAPS All Asia Conference (ICEP-IACC), Kyoto, pp. 814-817, April 2015.
[70] H. Fuketa, M. Hamamatsu, T. Yokota, W. Yukita, T. Someya, T. Sekitani, M. Takamiya, T. Someya, and T.
Sakurai, "Energy-Autonomous Fever Alarm Armband Integrating Fully Flexible Solar Cells, Piezoelectric
Speaker, Temperature Detector, and 12V Organic Complementary FET Circuits," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 296-297, Feb. 2015.
[71] H. Fuketa, Y. Momiyama, A. Okamoto, T. Sakata, M. Takamiya, and T. Sakurai, "An 85-mV Input, 50-μs
Startup Fully Integrated Voltage Multiplier with Passive Clock Boost Using On-Chip Transformers forEnergy Harvesting ", 40th European Solid-State Circuits Conference (ESSCIRC), Venice, Italy, pp. 263-266,
Sep. 2014.
14

[72] H. Fuketa, K. Yoshioka, K. Fukuda, T. Mori, H. Ota, M. Takamiya, and T. Sakurai, "Design Guidelines of
Steep Subthreshold TFET to Minimize Energy of Logic Circuits," International Conference on Solid State
Devices and Materials (SSDM), Tsukuba, Japan, pp. 832-833, Sep. 2014.
[73] M. Takamiya, H. Fuketa, K. Ishida, T. Yokota, T. Sekitani, T. Someya, and T. Sakurai, "Flexible,
Large-Area, and Distributed Organic Electronics Closely Contacted with Skin for Healthcare Applications,"
IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), College Station, USA, pp.
829 - 832, Aug. 2014. (Invited)[74] S. Iguchi, H. Fuketa, T. Sakurai, and M. Takamiya, "92% Start-up Time Reduction by Variation-Tolerant
Chirp Injection (CI) and Negative Resistance Booster (NRB) in 39MHz Crystal Oscillator," IEEE
Symposium on VLSI Circuits, Hawaii, pp. 236-237, June 2014.
[75] H. Fuketa, Y. Shinozuka, K. Ishida, M Takamiya, and T. Sakurai, "On-Chip Buck Converter with Spiral
Ferrite Inductor and Reducing IR Drop in 3D Stacked Integration," International Power Electronics
Conference (IPEC), Hiroshima, Japan, pp. 2228-2231, May 2014. (Invited)[76] T. Yokota, Y. Terakawa, T. Sekitani, W. Yukita, M. Koizumi, H. Fuketa, K. Yoshioka, M. Sekino, M.
Takamiya, T. Sakurai, and T. Someya, "Organic Transistor Based Wireless Sensor System with ESD
Protection Circuit," Materials Research Society (MRS) Spring Meeting, C6.04, San Francisco, USA, April
2014.
[77] M. Takamiya, "Extremely Low-Power Circuit Design for Wearable Systems," IEEE International Solid-State
Circuits Conference (ISSCC), Evening Session, "Wearable Wellness Devices: Fashion, Health, andInformatics", San Francisco, USA, Feb. 2014. (Invited)[78] H. Fuketa, K. Yoshioka, T. Yokota, W. Yukita, M. Koizumi, M. Sekino, T. Sekitani, M. Takamiya, T.
Someya, and T. Sakurai, "Organic-Transistor-Based 2kV ESD-Tolerant Flexible Wet Sensor Sheet for
Biomedical Applications with Wireless Power and Data Transmission Using 13.56MHz Magnetic
Resonance," IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 490-491,
Feb. 2014.
[79] T. Someya, T. Sekitani, M. Kaltenbrunner, T. Yokota, H. Fuketa, M. Takamiya, and T. Sakurai,"Ultraflexible Organic Devices for Biomedical Applications," IEEE International Electron Devices Meeting(IEDM), Washington DC, USA, pp. 8.5.1-8.5.4, Dec. 2013. (Invited)[80] X. Zhang, Y. Okuma, P. -H. Chen, K. Ishida, Y. Ryu, K. Watanabe, T. Sakurai, and M. Takamiya, "A 0.6-V
Input 94% Peak Efficiency CCM/DCM Digital Buck Converter in 40-nm CMOS with
Dual-Mode-Body-Biased Zero-Crossing Detector," IEEE Asian Solid-State Circuits Conference (A-SSCC),
Singapore, pp. 45-48, Nov. 2013.
[81] H. Fuketa, R. Takahashi, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "Variation-aware
Subthreshold Logic Circuit Design," IEEE International Conference on ASIC (ASICON), Shenzhen, China,
pp. 95-98, Oct. 2013. (Invited)[82] A. Borna, M. Takamiya, and J. Rabaey, "The Path Toward Energy-Efficient Inference Engine Architectures
on Scaled and Beyond-CMOS Fabrics," Third Berkeley Symposium on Energy Efficient Electronic Systems,
Berkeley, USA, Oct. 2013.
[83] M. Takamiya, "Energy Efficient 0.5V Logic, RF, and Power Management Circuits," IEEE
SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S), Monterey, USA, Oct. 2012.
(Invited)[84] K. Mori, Y. Okuma, X. Zhang, H. Fuketa, T. Sakurai, and M. Takamiya, "Analog-Assisted Digital Low
Dropout Regulator (AAD-LDO) with 59% Faster Transient Response and 28% Ripple Reduction,"International Conference on Solid State Devices and Materials (SSDM), Fukuoka, Japan, pp. 888-889, Sep.
2013.
[85] S. Yoshimoto, S. Miyano, M. Takamiya, H. Shinohara, H. Kawaguchi, and M. Yoshimoto, "A 40-nm 8T
SRAM with Selective Source Line Control of Read Bitlines and Address Preset Structure," IEEE Custom
Integrated Circuits Conference (CICC), San Jose, USA, pp. 1-4, Sep. 2013.

15

[86] H. Fuketa, K. Ishida, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai, "Large-Area and Flexible
Sensors with Organic Transistors," IEEE International Workshop on Advances in Sensors and Interfaces(IWASI), Bari, Italy, pp. 87-90, June 2013. (Invited)[87] S. Iguchi, A. Saito, Y. Zheng, K. Watanabe, T. Sakurai, and M. Takamiya, "93% Power Reduction by
Automatic Self Power Gating (ASPG) and Multistage Inverter for Negative Resistance (MINR) in 0.7V,
9.2μW, 39MHz Crystal Oscillator," IEEE Symposium on VLSI Circuits, Kyoto, pp. C142-C143, June 2013.
[88] M. Nomura, A. Muramatsu, H. Takeno, S. Hattori, D. Ogawa, M. Nasu, K. Hirairi, S. Kumashiro, S.
Moriwaki, Y. Yamamoto, S. Miyano, Y. Hiraku, I. Hayashi, K. Yoshioka, A. Shikata, H. Ishikuro, M. Ahn,
Y. Okuma, X. Zhang, Y. Ryu, K. Ishida, M. Takamiya, T. Kuroda, H. Shinohara, and T. Sakurai, "0.5V
Image Processor with 563 GOPS/W SIMD and 32bit CPU Using High Voltage Clock Distribution (HVCD)
and Adaptive Frequency Scaling (AFS) with 40nm CMOS," IEEE Symposium on VLSI Circuits, Kyoto, pp.
C36-C37, June 2013.
[89] T. Sekitani, T. Yokota, M. Takamiya, T. Sakurai, and T. Someya, "Electrical Artificial Skin Using
Ultra-Flexible Organic Transistor," ACM Design Automation Conference, Austin, USA, pp. 1-3, June 2013.
[90] M. Takamiya, "Application of Large Area and Flexible Organic Transistors: Piezoelectric Energy Harvester
and Surface Electromyogram Measurement Sheet," LIMMS Workshop, “Beyond the Frontiers of
Nanoscience and Biosystems”, Paris, France, May 2013. (Invited)[91] S. Iguchi, P. Yeon, H. Fuketa, K. Ishida, T. Sakurai, and M. Takamiya, "Zero Phase Difference CapacitanceControl (ZPDCC) for Magnetically Resonant Wireless Power Transmission," IEEE Wireless Power Transfer
Conference (WPTC), Perugia, Italy, pp. 25-26, May. 2013. (Best Paper Award)[92] H. Fuketa, Y. Shinozuka, K. Ishida, M. Takamiya, T. Fujii, H. Shimizu, K. Kobayashi, T. Sato, and T.
Sakurai, "Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material toInductor on Interposer," International Conference on Ferrites (ICF), Okinawa, p. 75, Apr. 2013.
[93] M. Takamiya, "Emerging Applications and Design Challenges of Organic Electronics," Tutorial Short
Course in IEEE International Conference on Microelectronic Test Structures (ICMTS), Osaka, March 2013.
(Invited)[94] Y. Shinozuka, H. Fuketa, K. Ishida, F. Furuta, K. Osada, K. Takeda, M. Takamiya, and T. Sakurai,"Reducing IR Drop in 3D Integration to Less Than 1/4 Using Buck Converter on Top Die (BCT) Scheme,"
IEEE International Symposium on Quality Electronic Design (ISQED), Santa Clara, USA, pp. 210-215,
March 2013.
[95] H. Fuketa, M. Nomura, M. Takamiya, and T. Sakurai, "Intermittent Resonant Clocking Enabling Power
Reduction at Any Clock Frequency for 0.37V, 980kHz Near-Threshold Logic Circuits," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 436-437, Feb. 2013.
[96] H. Fuketa, K. Yoshioka, Y. Shinozuka, K. Ishida, T. Yokota, N. Matsuhisa, Y. Inoue, M. Sekino, T. Sekitani,
M. Takamiya, T. Someya, and T. Sakurai, "1um Thickness 64 Channel Surface Electromyogram
Measurement Sheet with 2V Organic Transistors for Prosthetic Hand Control," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 104-105, Feb. 2013.
[97] X. Zhang, P. -H. Chen, Y. Ryu, K. Ishida, Y. Okuma, K. Watanabe, T. Sakurai, and M. Takamiya, "A Low
Voltage Buck DC-DC Converter Using On-Chip Gate Boost Technique in 40nm CMOS," Asia-South Pacific
Design Automation Conference (ASP-DAC), Yokohama, Japan, pp. 109-110, Jan. 2013.
[98] S. Iguchi, A. Saito, K. Honda, Y. Zheng, K. Watanabe, T. Sakurai, and M. Takamiya, "315MHz OOKTransceiver with 38-uW Receiver and 36-uW Transmitter in 40-nm CMOS," Asia-South Pacific Design
Automation Conference (ASP-DAC), Yokohama, Japan, pp. 93-94, Jan. 2013.
[99] M. Takamiya, K. Ishida, K. Takemura, and T. Sakurai, "3D Stacked Buck Converter with SrTiO3 (STO)
Capacitors on Silicon Interposer," IEEE International Workshop on Power Supply on Chip (PowerSoC), San
Francisco, USA, 4-3, Nov. 2012. (Invited)[100] M. Takamiya, "Extremely Low Power VLSI Circuits with Low Voltage Operation," IEEE/ACM Workshop
on Variability Modeling and Characterization (VMC), San Jose, USA, Nov. 2012. (Invited)16[101] M. Takamiya, K. Ishida, H. Fuketa, T. Sekitani, T. Someya, and T. Sakurai, "Printable and Flexible
Electronics with Organic Transistors," IEEE International Conference on Computer-Aided Design (ICCAD),
San Jose, USA, 7D-2, Nov. 2012. (Invited)[102] S. Iguchi, A. Saito, K. Watanabe, T. Sakurai, and M. Takamiya, "2.1 Times Increase of Drain Efficiency byDual Supply Voltage Scheme in 315MHz Class-F Power Amplifier at Output Power of -20dBm", 38th
European Solid-State Circuits Conference (ESSCIRC), Bordeaux, France, pp. 345-348, Sep. 2012.
[103] H. Fuketa, R. Takahashi, M. Takamiya, M. Nomura, H. Shinohara, and T.Sakurai, “Increase of Crosstalk
Noise Due to Imbalanced Threshold Voltage between NMOS and PMOS in Sub-Threshold Logic Circuits,"
IEEE Custom Integrated Circuits Conference (CICC), San Jose, USA, pp. 1-4, Sep. 2012.
[104] X. Zhang, Y. Pu, K. Ishida, Y. Ryu. Y. Okuma, P. -H. Chen, K. Watanabe, Sakurai, and M. Takamiya,“Low Voltage Switched-Capacitor Voltage Converter with Improved Light Load Efficiency,” 3rd IEICEInternational Conference on Integrated Circuits and Devices in Vietnam (ICDV), Danang, Vietnam, pp.
46-51, Aug. 2012.
[105] A. Saito, Y. Zheng, K. Watanabe, T. Sakurai, and M. Takamiya, “0.35V, 4.1uW, 39MHz Crystal Oscillator
in 40nm CMOS,” International Symposium on Low Power Electronics and Design (ISLPED), Redondo
Beach, USA, pp. 333-338, Aug. 2012.
[106] X. Zhang, P. -H. Chen, Y. Ryu, K. Ishida, Y. Okuma, K. Watanabe, T. Sakurai, and M. Takamiya, "A
0.45-V Input On-Chip Gate Boosted (OGB) Buck Converter in 40-nm CMOS with More Than 90%
Efficiency in Load Range from 2μW to 50μW," IEEE Symposium on VLSI Circuits, Hawaii, pp. 194-195,
June 2012.
[107] A. Saito, K. Honda, Y. Zheng, S. Iguchi, K. Watanabe, T. Sakurai, and M. Takamiya, "An All 0.5V,
1Mbps, 315MHz OOK Transceiver with 38-μW Carrier-Frequency-Free Intermittent Sampling Receiver and
52-μW Class-F Transmitter in 40-nm CMOS," IEEE Symposium on VLSI Circuits, Hawaii, pp. 38-39, June
2012.
[108] R. Takahashi, H. Takata, T. Yasufuku, H. Fuketa, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai,"Large Within-Die Gate Delay Variations in Sub-Threshold Logic Circuits at Low Temperature," IEEE
International Workshop on Design for Manufacturability and Yield (DFM&Y), San Francisco, USA, June
2012.
[109] H. Lim, K. Ishida, M. Takamiya, and T. Sakurai, "Positioning-Free Magnetically Resonant Wireless Power
Transmission Board with Staggered Repeater Coil Array (SRCA)," IEEE MTT-S International Microwave
Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications(IMWS-IWPT), Kyoto, pp. 93-96, May 2012.
[110] T. Yasufuku, K. Hirairi, Y. Pu, Y. -F. Zheng, R. Takahashi, M. Sasaki, H. Fuketa, A. Muramatsu, M.
Nomura, F. Shinohara, M. Takamiya, and T. Sakurai, "24% Power Reduction by Post-Fabrication Dual
Supply Voltage Control of 64 Voltage Domains in VDDmin Limited Ultra Low Voltage Logic Circuits,"
IEEE International Symposium on Quality Electronic Design (ISQED), Santa Clara, USA, pp. 586-591,
March 2012.
[111] K. Hirairi, Y. Okuma, H. Fuketa, T. Yasufuku, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai,"13% Power Reduction in 16b Integer Unit in 40nm CMOS by Adaptive Power Supply Voltage Control with
Parity-Based Error Prediction and Detection (PEPD) and Fully Integrated Digital LDO," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 486-487, Feb. 2012.
[112] K. Ishida, T. -C. Huang, K. Honda, Y. Shinozuka, H. Fuketa, T. Yokota, U. Zschieschang, H. Klauk, G.
Tortissier, T. Sekitani, M. Takamiya, H. Toshiyoshi, T. Someya, and T. Sakurai, "Insole Pedometer With
Piezoelectric Energy Harvester and 2V Organic Digital and Analog Circuits," IEEE International Solid-State
Circuits Conference (ISSCC), San Francisco, USA, pp. 308-309, Feb. 2012.
[113] K. Ikeuchi, M. Takamiya, and T. Sakurai, "Through Silicon Capacitive Coupling (TSCC) Interface for 3D
Stacked Dies," IEEE International 3D System Integration Conference (3DIC), P-2-5, Osaka, Feb. 2012.
[114] P. -H. Chen, K. Ishida, X. Zhang, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai, "A 120-mV Input,
Fully Integrated Dual-Mode Charge Pump in 65-nm CMOS for Thermoelectric Energy Harvester,"

17

Asia-South Pacific Design Automation Conference (ASP-DAC), Sydney, Australia, pp. 469-470, Jan. 2012.
(Best Design Award in University LSI Design Contest)[115] T. -C. Huang, K. Ishida, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai, "A Floating-Gate
OTFT-Driven AMOLED Pixel Circuit for Variation and Degradation Compensation in Large-Sized Flexible
Displays," International Display Workshop (IDW), Nagoya, Japan, pp. 1643-1646, Dec. 2011. (Invited)[116] H. Fuketa, T. Yasufuku, S. Iida, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "Device-Circuit
Interactions in Extremely Low Voltage CMOS Designs," IEEE International Electron Devices Meeting(IEDM), Washington DC, USA, pp. 559-562, Dec. 2011. (Invited)[117] T. Yokota, T. Sekitani, T. Tokuhara, U. Zschieschang, H. Klauk, T.-C. Huang, M. Takamiya, T. Sakurai,
and T. Someya, "Sheet-type Organic Active Matrix Amplifier System Using Vth-Tunable, Pseudo-CMOS
Circuits with Floating-gate Structure," IEEE International Electron Devices Meeting (IEDM), Washington
DC, USA, pp. 335-338, Dec. 2011.
[118] P. -H. Chen, K. Ishida, X. Zhang, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai, "A 80-mV Input, Fast
Startup Dual-Mode Boost Converter with Charge-Pumped Pulse Generator for Energy Harvesting," IEEE
Asian Solid-State Circuits Conference (A-SSCC), Jeju, Korea, pp. 33-36, Nov. 2011.
[119] A. Muramatsu, T. Yasufuku, M. Nomura, M. Takamiya, H. Shinohara, and T. Sakurai, "12% Power
Reduction by Within-Functional-Block Fine-Grained Adaptive Dual Supply Voltage Control in Logic
Circuits with 42 Voltage Domains," 37th European Solid-State Circuits Conference (ESSCIRC), Helsinki,
Finland, pp. 191-194, Sep. 2011.
[120] K. Ishida, T. -C. Huang, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai, "Large-Area Flexible
Electronics with Organic Transistors," IEEE International Midwest Symposium on Circuits and Systems,
Seoul, Korea, pp. 1-4, Aug. 2011. (Invited)[121] K. Honda, K. Ikeuchi, M. Nomura, M. Takamiya, and T. Sakurai, "Reduction of Minimum Operating
Voltage (VDDmin) of CMOS Logic Circuits with Post-Fabrication Automatically Selective Charge
Injection," International Symposium on Low Power Electronics and Design (ISLPED), Fukuoka, Japan, pp.
175-180, Aug. 2011.
[122] H. Fuketa, K. Hirairi, T. Yasufuku, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "12.7-times
Energy Efficiency Increase of 16-bit Integer Unit by Power Supply Voltage (VDD) Scaling from 1.2V to
310mV Enabled by Contention-less Flip-Flops (CLFF) and Separated VDD between Flip-Flops andCombinational Logics," International Symposium on Low Power Electronics and Design (ISLPED),
Fukuoka, Japan, pp. 163-168, Aug. 2011.
[123] T. Yasufuku, S. Iida, H. Fuketa, K. Hirairi, M. Nomura, M. Takamiya, and T. Sakurai, " Investigation of
Determinant Factors of Minimum Operating Voltage of Logic Gates in 65-nm CMOS," International
Symposium on Low Power Electronics and Design (ISLPED), Fukuoka, Japan, pp. 21-26, Aug. 2011.
[124] X. Zhang, Y. Pu, K. Ishida, Y. Ryu, Y. Okuma, P. -H. Chen, K. Watanabe, T. Sakurai, and M. Takamiya,"A Voltage-Reference-Free Pulse Density Modulation (VRF-PDM) 1-V Input Switched-Capacitor 1/2
Voltage Converter with Output Voltage Trimming by Hot Carrier Injection and Periodic Activation
Scheme," IEEE Symposium on VLSI Circuits, Kyoto, pp. 280-281, June 2011.
[125] L. Liu, T. Sakurai, and M. Takamiya, "315MHz Energy-Efficient Injection-Locked OOK Transmitter and8.4 μW Power-Gated Receiver Front-End for Wireless Ad Hoc Network in 40nm CMOS," IEEE Symposium
on VLSI Circuits, Kyoto, pp. 164-165, June 2011.
[126] H. Fuketa, S. Iida, T. Yasufuku, M. Takamiya, M. Nomura, H. Shinohara, and T. Sakurai, "A Closed-Form
Expression for Estimating Minimum Operating Voltage (VDDmin) of CMOS Logic Gates," ACM Design
Automation Conference, San Diego, USA, pp. 984-989, June 2011.
[127] T. -C. Huang, K. Ishida, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai, "A Floating-Gate
OTFT-Driven AMOLED Pixel Circuit for Variation and Degradation Compensation in Large-Sized Flexible
Displays," Society for Information Display (SID) International Symposium, Los Angeles, USA, pp. 149-152,
May 2011.
[128] K. Ishida, T. -C. Huang, K. Honda, T. Sekitani, H. Nakajima, H. Maeda, M. Takamiya, T. Someya, and T.
Sakurai, "100-V AC Power Meter System-on-a-Film (SoF) Integrating 20-V Organic CMOS Digital and18

Analog Circuits with Floating Gate for Process Variation Compensation and 100-V Organic PMOS
Rectifier," IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 218-219,
Feb. 2011.
[129] P. -H. Chen, K. Ishida, K. Ikeuchi, X. Zhang, K. Honda, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai,"A 95mV-Startup Step-up Converter with VTH-Tuned Oscillator by Fixed-Charge Programming andCapacitor Pass-On Scheme," IEEE International Solid-State Circuits Conference (ISSCC), San Francisco,USA, pp. 216-217, Feb. 2011.
[130] X. Zhang, K. Ishida, M. Takamiya, and T. Sakurai, "An On-Chip Characterizing System for Within-Die
Delay Variation Measurement of Individual Standard Cells in 65-nm CMOS," Asia-South Pacific Design
Automation Conference (ASP-DAC), Yokohama, Japan, pp. 109-110, Jan. 2011.
[131] M. Takamiya, K. Ishida, T. Sekitani, U. Zschieschang, H. Klauk, T. Someya, and T. Sakurai, "Large Area
Electronics with Organic Transistors and Novel Interconnects: EMI Measurement Sheet with Stretchable
Interconnects and User Customizable Logic Paper (UCLP) with Ink-Jet Printed Interconnects," International
Display Workshop (IDW), Fukuoka, Japan, pp. 1577-1580, Dec. 2010. (Invited)[132] G.-S. Kim, K. Ikeuchi, M. Daito, M. Takamiya, and T. Sakurai, "A High-Speed, Low-Power
Capacitive-Coupling Transceiver for Wireless Wafer-Level Testing Systems," IEEE International 3D System
Integration Conference (3DIC), Munich, Germany, Nov. 2010.
[133] K. Ishida, K. Takemura, K. Baba, M. Takamiya, and T. Sakurai, "3D Stacked Buck Converter with 15um
Thick Spiral Inductor on Silicon Interposer for Fine-Grain Power-Supply Voltage Control in SiP’s," IEEE
International 3D System Integration Conference (3DIC), Munich, Germany, pp. 1-4, Nov. 2010.
[134] L. Liu, T. Sakurai, and M. Takamiya, "0.6V Voltage Doubler and Clocked Comparator for
Correlation-based Impulse Radio UWB Receiver in 65nm CMOS," IEEE Asian Solid-State Circuits
Conference (A-SSCC), Beijing, China, pp. 301-304, Nov. 2010.
[135] X. Zhang, Y. Pu, K. Ishida, Y. Ryu, Y. Okuma, P.-H. Chen, K. Watanabe, T. Sakurai, and M. Takamiya,"A 1-V Input, 0.2-V to 0.47-V Output Switched-Capacitor DC-DC Converter with Pulse Density and Width
Modulation (PDWM) for 57% Ripple Reduction," IEEE Asian Solid-State Circuits Conference (A-SSCC),
Beijing, China, pp. 61-64, Nov. 2010.
[136] Y. Pu, X. Zhang, J. Huang, A. Muramatsu, M. Nomura, K. Hirairi, H. Takata, T. Sakurabayashi, S.
Miyano, M. Takamiya, and T. Sakurai, "Misleading Energy and Performance Claims in Sub/Near Threshold
Digital Systems," IEEE International Conference on Computer-Aided Design (ICCAD), San Jose, USA, pp.
625-631, Nov. 2010.
[137] M. Takamiya, K. Ishida, T. Sekitani, T. Someya, and T. Sakurai, "Design of Large Area Electronics with
Organic Transistors," IEEE International Conference on Computer-Aided Design (ICCAD), San Jose, USA,pp. 500-503, Nov. 2010. (Invited)[138] T. Sekitani, K. Ishida, M. Takamiya, T. Sakurai, and T. Someya, "Stretchable Large-Area Electronics
Using Organic Transistor Integrated Circuits," International Conference on Solid-State and Integrated Circuit
Technology (ICSICT), Shanghai, China, pp. 1272-1275, Nov. 2010.
[139] T. Sekitani, K. Ishida, N. Masunaga, R. Takahashi, S. Shino, U. Zschieschang, H. Klauk, M. Takamiya, T.
Sakurai, and T. Someya, "Organic CMOS Logic Papers with In-Field User Customizability," 2010
International Conference on Solid State Devices and Materials (SSDM), Tokyo, Japan, A-6-2, Sep. 2010.
[140] N. Masunaga, K. Ishida, M. Takamiya, and T. Sakurai, "EMI Camera LSI (EMcam) with 12 x 4 On-Chip
Loop Antenna Matrix in 65-nm CMOS to Measure EMI Noise Distribution with 60-μm Spatial Precision,"
IEEE Custom Integrated Circuits Conference (CICC), San Jose, USA, pp. 449-452, Sep. 2010.
[141] Y. Okuma, K. Ishida, Y. Ryu, X. Zhang, P.-H. Chen, K. Watanabe, M. Takamiya, and T. Sakurai, "0.5-V
Input Digital LDO with 98.7% Current Efficiency and 2.7-μA Quiescent Current in 65nm CMOS," IEEE
Custom Integrated Circuits Conference (CICC), San Jose, USA, pp. 323-326, Sep. 2010.
[142] P.-H. Chen, K. Ishida, X. Zhang, Y. Okuma, Y. Ryu, M. Takamiya, and T. Sakurai, "0.18-V Input Charge
Pump with Forward Body Biasing in Startup Circuit using 65nm CMOS," IEEE Custom Integrated Circuits
Conference (CICC), San Jose, USA, pp. 239-242, Sep. 2010.
19[143] T. Hatanaka, K. Ishida, T. Yasufuku, S. Miyamoto, H. Nakai, M. Takamiya, T. Sakurai and K. Takeuchi,"A 60% Higher Write Speed, 4.2Gbps, 24-Channel 3D-Solid State Drive (SSD) with NAND Flash Channel
Number Detector and Intelligent Program-Voltage Booster," IEEE Symposium on VLSI Circuits, Hawaii,
pp. 233-234, June 2010.
[144] H. Ishizaki, T. Araki, S. Takahashi, J. Ryu, S. Uchida, N. Yoshida, M. Takamiya and M. Mizuno,"FDM-based Wireless Source Synchronous 15-Mbps TRx with PLL-less Receiver and 1-mm On-chip
Integrated Antenna for 1.25-cm Touch-and-Proceed Communication," IEEE Symposium on VLSI Circuits,
Hawaii, pp. 73-74, June 2010.
[145] L. Liu, T. Sakurai, and M. Takamiya, "A Charge-Domain Auto- and Cross-Correlation Based IR-UWB
Receiver with Power- and Area-efficient PLL for 62.5ps Step Data Synchronization in 65nm CMOS," IEEE
Symposium on VLSI Circuits, Hawaii, pp. 27-28, June 2010.
[146] M. Daito, Y. Nakata, S. Sasaki, H. Gomyo, H. Kusamitsu, Y. Komoto, K. Iizuka, K. Ikeuchi, G. Kim, M.
Takamiya, and T. Sakurai, "Capacitively Coupled Non-Contact Probing Circuits for Membrane-Based
Wafer-Level Simultaneous Testing," IEEE International Solid-State Circuits Conference (ISSCC), San
Francisco, USA, pp. 144-145, Feb. 2010.
[147] K. Ishida, N. Masunaga, R. Takahashi, T. Sekitani, S. Shino, U. Zschieschang, H. Klauk, M. Takamiya, T.
Someya, and T. Sakurai, "User Customizable Logic Paper (UCLP) with Organic Sea-of Transmission-Gates(SOTG) Architecture and Ink-Jet Printed Interconnects," IEEE International Solid-State Circuits Conference(ISSCC), San Francisco, USA, pp. 138-139, Feb. 2010.
[148] T. Someya, T. Sekitani, M. Takamiya, T. Sakurai, U. Zschieschang, and H. Klauk, "Printed Organic
Transistors: Toward Ambient Electronics," IEEE International Electron Devices Meeting (IEDM),
Baltimore, USA, pp. 9-14, Dec. 2009. (Plenary talk)[149] G.-S. Kim, M. Takamiya, and T. Sakurai, "A Capacitive Coupling Interface with High Sensitivity for
Wireless Wafer Testing," IEEE International 3D System Integration Conference (3DIC), San Francisco,USA, Sep. 2009.
[150] T. Yasufuku, K. Ishida, S. Miyamoto, H. Nakai, M. Takamiya, T. Sakurai, and K. Takeuchi, "Effect ofResistance of TSV’s on Performance of Boost Converter for Low Power 3D SSD with NAND Flash
Memories ," IEEE International 3D System Integration Conference (3DIC), San Francisco, USA, Sep. 2009.
[151] K. Ikeuchi, K. Sakaida, K. Ishida, T. Sakurai, and M. Takamiya, "Switched Resonant Clocking (SRC)
Scheme Enabling Dynamic Frequency Scaling and Low-Speed Test ," IEEE Custom Integrated Circuits
Conference (CICC), San Jose, USA, pp. 33-36, Sep. 2009.
[152] T. Yasufuku, K. Ishida, S. Miyamoto, H. Nakai, M. Takamiya, T. Sakurai, and K. Takeuchi, "Inductor
Design of 20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories ,"International Symposium on Low Power Electronics and Design (ISLPED), San Francisco, USA, pp. 87-91,
Aug. 2009.
[153] N. Masunaga, K. Ishida, Z. Zhou, T. Yasufuku, T. Sekitani, M. Takamiya, T. Someya, and T. Sakurai, "A
Flexible EMI Measurement Sheet to Measure Electric and Magnetic Fields Separately with Distributed
Antennas and LSI’s," IEEE International Symposium on Electromagnetic Compatibility, Austin, USA, pp.
156-160, Aug. 2009.
[154] L. Liu, T. Sakurai, and M. Takamiya, "A 1.28mW 100Mb/s Impulse UWB Receiver with Charge-Domain
Correlator and Embedded Sliding Scheme for Data Synchronization," IEEE Symposium on VLSI Circuits,
Kyoto, pp. 146-147, June 2009.
[155] K. Ishida, N. Masunaga, Z. Zhou, T. Yasufuku, T. Sekitani, U. Zschieschang, H. Klauk, M. Takamiya, T.
Someya, and T. Sakurai, "A Stretchable EMI Measurement Sheet with 8×8 Coil Array, 2V Organic CMOS
Decoder, and -70dBm EMI Detection Circuits in 0.18um CMOS," IEEE International Solid-State Circuits
Conference (ISSCC), San Francisco, USA, pp. 472-473, Feb. 2009.
[156] K. Ishida, T. Yasufuku, S. Miyamoto, H. Nakai, M. Takamiya, T. Sakurai, and K. Takeuchi, "A 1.8V 30nJ
Adaptive Program-Voltage (20V) Generator for 3D-Integrated NAND Flash SSD," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 238-239, Feb. 2009.

20

[157] L. Liu, Y. Miyamoto, Z. Zhou, K. Sakaida, J. Ryu, K. Ishida, M. Takamiya, and T. Sakurai, "A 100Mbps,
0.19mW Asynchronous Threshold Detector with DC Power-Free Pulse Discrimination for Impulse UWB
Receiver," Asia-South Pacific Design Automation Conference (ASP-DAC), Yokohama, Japan, pp. 97-98,
Jan. 2009.
[158] Y. Kato, T. Sekitani, Y. Noguchi, M. Takamiya, T. Sakurai, and T. Someya, "A Large-Area, Flexible,
Ultrasonic Imaging System with a Printed Organic Transistor Active Matrix," IEEE International Electron
Devices Meeting (IEDM), San Francisco, USA, pp. 97-100, Dec. 2008.
[159] K. Ikeuchi, K. Inagaki, H. Kusamitsu, T. Ito, M. Takamiya and T. Sakurai, "500Mbps, 670μW/pin
Capacitively Coupled Receiver with Self Reset Scheme for Wireless Connectors," IEEE Asian Solid-State
Circuits Conference (A-SSCC), Fukuoka, Japan, pp. 93-96, Nov. 2008.
[160] Y. Nakamura, D. Levacq, L. Xiao, T. Minakawa, T. Niiyama, M. Takamiya, and T. Sakurai, "1/5 Power
Reduction by Global Optimization Based on Fine-Grained Body Biasing," IEEE Custom Integrated Circuits
Conference (CICC), San Jose, USA, pp. 547-550, Sep. 2008.
[161] T. Niiyama, K. Ishida, M. Takamiya, and T. Sakurai, "Expected Vectorless Teacher-Student Swap (TSS)
Test Method with Dual Power Supply Voltages for 0.3V Homogeneous Multi-core LSI’s," IEEE Custom
Integrated Circuits Conference (CICC), San Jose, USA, pp. 137-140, Sep. 2008.
[162] S. Choi, K. Ikeuchi, H. Kim, K. Inagaki, M. Murakata, N. Nishiguchi, M. Takamiya, and T. Sakurai,"Experimental Assessment of Logic Circuit Performance Variability with Regular Fabrics at 90nm
Technology Node," 34th European Solid-State Circuits Conference (ESSCIRC), Edinburgh, UK, pp. 50-53,
Sep. 2008.
[163] T. Niiyama, P. Zhe, K. Ishida, M. Murakata, M. Takamiya, and T. Sakurai, "Increasing Minimum
Operating Voltage (VDDmin) with Number of CMOS Logic Gates and Experimental Verification with up to
1Mega-Stage Ring Oscillators," International Symposium on Low Power Electronics and Design (ISLPED),
Bangalore, India, pp. 117-122, Aug. 2008.
[164] L. Liu, Y. Miyamoto, Z. Zhou, K. Sakaida, J. Ryu, K. Ishida, M. Takamiya, and T. Sakurai, " A 100Mbps,
0.41mW, DC-960MHz Band Impulse UWB Transceiver in 90nm CMOS," IEEE Symposium on VLSI
Circuits, Honolulu, Hawaii, USA, pp. 118-119, June 2008.
[165] M. Takamiya, K. Onizuka, and T. Sakurai, "3D-Structured On-Chip Buck Converter for Distributed Power
Supply System in SiPs," IEEE International Conference on IC Design and Technology (ICICDT), Grenoble,
France, pp. 33-36, June 2008. (Invited)[166] S. Sakai, M. Takahashi, K. Takeuchi, Q.-H. Li, T.i Horiuchi, S. Wang, K.-Y. Yun, M. Takamiya, and T.
Sakurai,"Highly
Scalable
Fe(Ferroelectric)-NAND
Cell
with
MFIS(Metal-Ferroelectric-Insulator-Semiconductor) Structure for Sub-10nm Tera-Bit Capacity NAND Flash
Memories," IEEE Nonvolatile Semiconductor Memory Workshop (NVSMW), Opio, France, pp. 103-104,
May 2008.
[167] L. Liu, M. Takamiya, T. Sekitani, Y. Noguchi, S. Nakano, K. Zaitsu, T. Kuroda, T. Someya, and T.
Sakurai, "3D Integration of LSI, Plastic MEMS Switches and Organic Transistors for Printable
Communication Sheet," International 3D System Integration Conference （3D-SIC）, Tokyo, Japan pp.
385-394, May 2008.
[168] K. Onizuka, M. Takamiya, and T. Sakurai, "A Design Methodology of Chip-to-Chip Wireless Power
Transmission System," International 3D System Integration Conference （3D-SIC）, Tokyo, Japan pp.
97-103, May 2008.
[169] T. Niiyama, P. Zhe, K. Ishida, M. Murakata, M. Takamiya, and T. Sakurai, "Dependence of Minimum
Operating Voltage (VDDmin) on Block Size of 90-nm CMOS Ring Oscillators and Its Implications in Low
Power DFM," IEEE International Symposium on Quality Electronic Design (ISQED), San Jose, USA, pp.
133-136, March 2008.
[170] L. Liu, M. Takamiya, T. Sekitani, Y. Noguchi, S. Nakano, K. Zaitsu, T. Kuroda, T. Someya, and T.
Sakurai, "A 107pJ/b 100kb/s 0.18um Capacitive-Coupling Transceiver for Printable Communication Sheet,"IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 292-293, Feb. 2008.

21

[171] T. Sekitani, Y. Noguchi, S. Nakano, K. Zaitsu, Y. Kato, M. Takamiya, T. Sakurai, and T. Someya,"Communication Sheets Using Printed Organic Nonvolatile Memories," IEEE International Electron Devices
Meeting (IEDM), Washington DC, USA, pp. 221 - 224, Dec. 2007.
[172] M. Takamiya, T. Sekitani, Y. Miyamoto, Y. Noguchi, H. Kawaguchi, T. Someya, and T. Sakurai,"Wireless Power Transmission Sheet with Organic FETs and Plastic MEMS Switches," International Display
Workshop (IDW) , Sapporo, Japan, pp. 95-98, Dec. 2007. (Invited)[173] D. Levacq, M. Takamiya and T. Sakurai, "Backgate Bias Accelerator for 10ns-order Sleep-to-Active
Modes Transition Time," IEEE Asian Solid-State Circuits Conference (A-SSCC), Jeju, Korea, pp. 296-299,
Nov. 2007.
[174] D. Levacq, T. Minakawa, M. Takamiya, and T. Sakurai, "A Wide Range Spatial Frequency Analysis ofIntra-Die Variations with 4-mm 4000 x 1 Transistor Arrays in 90nm CMOS," IEEE Custom Integrated
Circuits Conference (CICC), San Jose, USA, pp. 257-560, Sep. 2007.
[175] D. Levacq, M. Yazid, H. Kawaguchi, M. Takamiya, and T. Sakurai, "Half VDD Clock-Swing Flip-Flopwith Reduced Contention for up to 60% Power Saving in Clock Distribution," 33rd European Solid-State
Circuits Conference (ESSCIRC), Munich, Germany, pp. 190-193, Sep. 2007.
[176] Y. Nakamura, M. Takamiya, and T. Sakurai, "An On-Chip Noise Canceller with High Voltage Supply
Lines for Nanosecond-Range Power Supply Noise," IEEE Symposium on VLSI Circuits, Kyoto, pp.
124-125, June 2007.
[177] M. Takamiya, T. Sekitani, Y. Miyamoto, Y. Noguchi, H. Kawaguchi, T. Someya, and T. Sakurai, "Designfor Mixed Circuits of Organic FETs and Plastic MEMS Switches for Wireless Power Transmission Sheet,"IEEE International Conference on IC Design and Technology (ICICDT), Austin, USA, pp. 168-171, May
2007. (Invited)[178] K. Onizuka, M. Takamiya, H. Kawaguchi, and T. Sakurai, "A Design Methodology of Chip-to-ChipWireless Power Transmission System," IEEE International Conference on IC Design and Technology(ICICDT), Austin, USA, pp. 143-146, May 2007. (Invited)[179] T. Someya, T. Sekitani, Y. Noguchi, S. Nakano, S. Takatani, M. Takamiya and T. Sakurai, "Printed
Organic Transistors for Large-area Sensors and Actuators," Material Research Society （MRS) Spring
Meeting. Symposium, O10.6, San Francisco, USA, April 2007.
[180] S. Nakano, T. Sekitani, S. Takatani, M. Takamiya, T. Sakurai and T. Someya, "Printed Plastic Switch
Array for the Application to High Power Electronics," Material Research Society （MRS) Spring Meeting.
Symposium, N8.9, San Francisco, USA, April 2007.
[181] M. Takamiya, T. Sekitani, Y. Miyamoto, Y. Noguchi, H. Kawaguchi, T. Someya, and T. Sakurai, "Design
Solutions for Multi-Object Wireless Power Transmission Sheet Based on Plastic Switches," IEEE
International Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 362-363, Feb. 2007.
[182] T. Sekitani, M. Takamiya, Y. Noguchi, S. Nakano, Y. Kato, K. Hizu, H. Kawaguchi, T. Sakurai, and T.
Someya, "A Large-Area Flexible Wireless Power Transmission Sheet Using Printed Plastic MEMS Switches
and Organic Field-Effect Transistors ," IEEE International Electron Devices Meeting (IEDM), San
Francisco, USA, pp. 287 - 290, Dec. 2006.
[183] M. Takamiya, T. Sekitani, Y. Kato, H. Kawaguchi, T. Someya, and T. Sakurai, "Flexible Braille Sheet
Display with Organic FETs and Plastic Actuators," International Display Workshop (IDW), Otsu, Japan, pp.
261-264, Dec. 2006. (Invited)[184] K.Onizuka, H. Kawaguchi, M. Takamiya and T. Sakurai, "Stacked-chip Implementation of On-chip Buck
Converter for Power-Aware Distributed Power Supply Systems," IEEE Asian Solid-State Circuits
Conference (A-SSCC), Hangzhou, China, pp. 127-130, Nov. 2006.
[185] M. Takamiya, "Large Area Electronics with Organic FETs," Japan-America Frontiers of Engineering
Symposium, Tsukuba, Japan, Nov. 2006. (Invited)[186] K.Onizuka, H. Kawaguchi, M. Takamiya, T. Kuroda and T. Sakurai, "Chip-to-Chip Inductive WirelessPower Transmission System for SiP Applications," IEEE Custom Integrated Circuits Conference (CICC),San Jose, USA, pp. 575-578, Sep. 2006.
22

[187] A. Tamtrakarn, H. Ishikuro, K. Ishida, M. Takamiya, and T. Sakurai, " A 1-V 299μW Flashing UWBTransceiver Based on Double Thresholding Scheme," IEEE Symposium on VLSI Circuits, Honolulu,
Hawaii, USA, pp. 250-251, June 2006.
[188] K. Inagaki, D. Antono, M. Takamiya, S. Kumashiro, and T. Sakurai, "A 1-ps Resolution On-chip Sampling
Oscilloscope with 64:1 Tunable Sampling Range Based on Ramp Waveform Division Scheme," IEEE
Symposium on VLSI Circuits, Honolulu, Hawaii, USA, pp. 76-77, June 2006.
[189] M. Takamiya, T. Sekitani, Y. Kato, H. Kawaguchi, T. Someya, and T. Sakurai, "Low Power and Flexible
Braille Sheet Display with Organic FET's and Plastic Actuators," IEEE International Conference on IC
Design and Technology (ICICDT), Padova, Italy, pp. 219-222, May 2006. (Invited)[190] K. Hizu. T. Sekitani. Y. Shimada. J. Otsuki. M. Takamiya. T. Sakurai, and T. Someya, " Low Voltage
Operation Of Organic CMOS Inverter Circuit With Double-Gate Structure," Material Research Society（MRS) Spring Meeting. Symposium, M10.59, San Francisco, USA, April 2006.
[191] M. Takamiya, T. Sekitani, Y. Kato, H. Kawaguchi, T. Someya, and T. Sakurai, "An Organic FET SRAM
for Braille Sheet Display with Back Gate to Increase Static Noise Margin," IEEE International Solid-State
Circuits Conference (ISSCC), San Francisco, USA, pp. 276-277, Feb. 2006.
[192] Y. Kato, S. Iba, T. Sekitani, Y. Noguchi, K. Hizu, X. Wang, K. Takenoshita, Y. Takamatsu, S. Nakano, K.
Fukuda, K. Nakamura, T. Yamaue, M. Doi, K. Asaka, H. Kawaguchi, M. Takamiya, T. Sakurai, and T.
Someya, "A Flexible, Lightweight Braille Sheet Display with Plastic Actuators Driven by An Organic
Field-Effect Transistor Active Matrix," IEEE International Electron Devices Meeting (IEDM), Washington
DC, USA, pp. 105 - 108, Dec. 2005.
[193] K. Yamaguchi, K. Sunaga, S. Kaeriyama, T. Nedachi, M. Takamiya, K. Nose, Y. Nakagawa, M. Sugawara,
and M. Fukaishi, "12Gb/s Duobinary Signaling with x2 Oversampled Edge Equalization," IEEE International
Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 70 - 71, Feb. 2005.
[194] M. Takamiya and M. Mizuno, "A Sampling Oscilloscope Macro toward Feedback Physical Design
Methodology," IEEE Symposium on VLSI Circuits, Honolulu, Hawaii, USA, pp. 240 - 243, June. 2004.
[195] M. Takamiya, H. Inohara, and M. Mizuno, "On-Chip Jitter-Spectrum-Analyzer for High-Speed Digital
Designs," IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, USA, pp. 423 - 426,
Feb. 2004.
[196] M. Takamiya “Challenges to Dependable VLSIs”, 44th Meeting of IFIP (International Federation for
Information Processing), Working Group 10.4 on Dependable Computing and Fault Tolerance, Workshop on
Hardware Design and Dependability, Monterey, CA, USA, pp. 181 - 198, June 2003.
[197] K. Kikuchi, M. Takamiya, Y. Kudo, K. Soejima, H. Honda, M. Mizuno, and S. Yamamichi, "A
Package-process-oriented Multilevel 5-mm-thick Cu Wiring Technology with Pulse Periodic Reverse
Electroplating and Photosensitive Resin," IEEE International Interconnect Technology Conference (IITC),
San Francisco, USA, pp. 189 - 191, June. 2003.
[198] M. Takamiya, T. Fukumoto, and M. Mizuno, "A 6.7-fF/μm2 Bias-Independent Gate Capacitor (BIGCAP)
with Standard CMOS Process and its Application to the Loop Filter of a Differential PLL", 28th European
Solid-State Circuits Conference (ESSCIRC), Florence, Italy, pp. 139 – 142, Sep. 2002.
[199] M. Takamiya, M. Mizuno, and K. Nakamura, "An On-Chip 100GHz-Sampling Rate 8-channel Sampling
Oscilloscope with Embedded Sampling Clock Generator," IEEE International Solid-State Circuits
Conference (ISSCC), San Francisco, USA, pp. 182–183, Feb. 2002.
[200] T. Hiramoto, M. Takamiya, H. Koura, T. Inukai, H. Gomyo, H. Kawaguchi, and T. Sakurai (Invited),“Optimum Device Parameters and Scalability of Variable Threshold CMOS (VTCMOS)“, 2000 International
Conference on Solid State Devices and Materials (SSDM), Sendai, Japan, pp. 372 - 373, August, 2000.
[201] Y. Yasuda, M. Takamiya, and T. Hiramoto, “Threshold Voltage Fluctuations Induced by Statistical“Position” and “Number” Impurity Fluctuations in Bulk MOSFETs”, 2000 Silicon Nanoelectronics
Workshop, Hilton Hawaiian Village, Hawaii, USA, pp. 40 - 41, June, 2000.

23

[202] T. Inukai, M. Takamiya, K. Nose, H. Kawaguchi, T. Hiramoto, T. Sakurai, “Boosted Gate MOS(BGMOS): Device/Circuit Cooperation Scheme to Achieve Leakage-Free Giga-Scale Integration”, Custom
Integrated Circuits Conference (CICC), Florida, USA, pp. 409 - 412, May, 2000.
[203] H. Koura, M. Takamiya, and T. Hiramoto, “Optimum Conditions of Body Effect Factor and Substrate Bias
in Variable Threshold Voltage MOSFETs”, 1999 International Conference on Solid State Devices andMaterials (SSDM'99), Nihon Toshi Center Kaikan, Tokyo, Japan, pp. 446 - 447, September, 1999.
[204] Y. Yasuda, M. Takamiya, and T. Hiramoto, “Effects of Impurity Position Distribution on Threshold
Voltage Fluctuations in Scaled MOSFETs”, 1999 Silicon Nanoelectronics Workshop, Rihga Royal Hotel
Kyoto, Kyoto, Japan, pp. 86 - 87, June, 1999.
[205] T. Hiramoto, Y. Yasuda, M. Takamiya, "Threshold Voltage Fluctuations Induced by Statistical Position
Distribution of Dopant Atoms in Scaled MOSFETs", International Symposium on Future of Intellectual
Integrated Electronics (ISFIIE), Sendai International Center, Miyagi, Japan, pp. 131 - 135, March, 1999.
[206] M. Takamiya and T. Hiramoto, “High Performance Electrically Induced Body Dynamic Threshold SOI
MOSFET (EIB-DTMOS) with Large Body Effect and Low Threshold Voltage”, IEEE International Electron
Devices Meeting (IEDM), San Francisco, USA, pp. 423 - 426, Dec. 1998.
[207] T. N. Duyet, H. Ishikuro, M. Takamiya, T. Saraya, and T. Hiramoto, "Effects of Body Reverse Pulse Biason Geometric Component of Charge Pumping Current in FD SOI MOSFETs", 1998 IEEE International SOI
Conference, Stuart, Florida, USA, pp. 79 - 80, October, 1998.
[208] T. N. Duyet, H. Ishikuro, Y. Shi, T. Saraya, M. Takamiya, and T. Hiramoto, "Measurement of Energetic
and Lateral Distribution of Interface State Density in FD SOI MOSFETs", 1998 International Conference on
Solid State Devices and Materials (SSDM'98), International Conference Center Hiroshima, Hiroshima,
Japan, pp. 322 - 323, September, 1998.
[209] M. Takamiya, T. Saraya, T. N. Duyet, Y. Yasuda, and T. Hiramoto, “High Performance Accumulated
Back-Interface Dynamic Threshold SOI MOSFET’s (AB-DTMOS) with Large Body Effect at Low Supply
Voltage”, International Conference on Solid State Devices and Materials (SSDM), International ConferenceCenter Hiroshima, Hiroshima, Japan, pp. 312 - 313, Sep. 1998.
[210] Y. Yasuda, M. Takamiya, and T. Hiramoto, "Scaling of Delta-Doped Channel MOSFET with Suppressed
Statistical Vth Fluctuations", 1998 International Workshop on Advanced LSIs ---Scaled Device/Process andHigh Performance Circuits ---, Hokkaido University, Sapporo, pp. 13 - 18, July, 1998.
[211] M. Takamiya, Y. Yasuda, and T. Hiramoto, "Deep Sub-0.1μm Fully Depleted SOI MOSFET's with
Ultra-Thin Silicon Film and Thick Buried Oxide for Low-Power Applications," Proceedings of International
Semiconductor Device Research Symposium, Charlottesville, Virginia, USA, pp. 215 - 218, Dec., 1997.
[212] T. Mukaiyama, K. Saito, H. Ishikuro, M. Takamiya, T. Saraya, and T. Hiramoto, "Fabrication of Gate-All
Around MOSFET by Silicon Anisotropic Etching Technique", International Workshop on Nano-Physics andElectronics (NPE'97), Institute of Industrial Science, University of Tokyo, Tokyo, Japan, pp. 45 - 46,
September, 1997
[213] T. Saraya, M. Takamiya, T. N. Duyet, and T. Hiramoto, "New Measurement Technique of Sub-Bandgap
Impact Ionization Current by Transient Characteristics of Partially Depleted SOI MOSFETs", 1997
International Conference on Solid State Devices and Materials (SSDM'97), Act City Hamamatsu,
Hamamatsu, Japan, pp. 554 - 555, September, 1997.
[214] T. Saraya, M. Takamiya, T. N. Duyet, T. Tanaka, H. Ishikuro, T. Hiramoto, and T. Ikoma, "Floating Body
Effects in 0.15 mm Partially Depleted SOI MOSFETs below 1 V", 1996 IEEE International SOI Conference,
Fort Myers, Florida, USA, pp. 70 - 71, October, 1996.

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