Yi Tan, Hiroki Ishikuro, “A Dual-Mode 2:1 Switched Capacitor Converter with >65% Efficiency over 1000x Load Current Range and One Clock Cycle Transient Response” presented at 2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Glasgow, United Kingdom, 24-26 October 2022
Masayuki Ichikawa, Takahisa Tanaka, Ken Uchida, Tomohisa Miyao, Munehiro Tada, and Hiroki Ishikuro, “In Situ Monitoring Technique of Self-Heating in Bulk MOSFETs at Cryogenic Temperatures using Subthreshold Current” presented at 2022 IEEE Latin American Electron Devices Conference (LAEDC), Cancun, Mexico, 04-06 July 2022
Tomohisa Miyao, Takahisa Tanaka, Itsuki Imanishi, Masayuki Ichikawa, Shuya Nakagawa, Hiroki Ishikuro, Toshitsugu Sakamoto, Munehiro Tada, and Ken Uchida, “Enhanced Drain Current in Transient Mode due to Long Ionization Time of Shallow Impurities at 4 K in 65-nm bulk Cryo CMOS Transistors” presented at 2022 Device Research Conference (DRC), Columbus, OH, USA, 26-29 June 2022
Kaoru Yamashita, Tokihiko Shimura, Shun Sato, Naoji Matsuhisa, and Hiroki Ishikuro, “Robust Readout Circuit with Leakage Current Cancellation Technique for Stretchable Touch Sensors” presented at 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Dubai, United Arab Emirates, 28 November 2021 – 01 December 2021
Yuya Maekawa, Hiroki Ishikuro, “An Amp-Less Time-Domain AC Bridge for Impedance Spectroscopy with 1-bit ΔΣ DAC” presented at 2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Dubai, United Arab Emirates, 28 November 2021 – 01 December 2021
Yi Tan and Hiroki Ishikuro, “A Switched-Capacitor DC-DC Converter with > 77.3% Efficiency and 80 ns Active Transient Response in 40 μA – 4 mA Load Current Range,” IEEE 47th European Solid-State Circuits Conference (ESSCIRC), Sept. 13-17, 2021.
Yuya Fuketa, Kohei Tatehora, Yohsuke Shiiki, Shuya Nakagawa, and Hiroki Ishikuro, “A Fast Wake-Up and High Accuracy Sensor Interface by Synchronous Sampling with Power-Efficient Switching Regulator,” 2021 IEEE 64th International Midwest Symposium on Circuits and Systems (MWSCAS), Aug. 9-11, 2021.
Peter Toth and Hiroki Ishikuro, “An up to 35dBc/Hz Phase Noise Improving Design Methodology for Differential-Ring-Oscillators Applied in Ultra-Low Power Systems,” 26th Asia and South Pacific Design Automation Conference (ASP-DAC), pp. 9-10, Jan., 2021.
Yi Tan, Yohsuke Shiiki, and Hiroki Ishikuro, “Gate Voltage Optimization in Capacitive DC-DC Converters for Thermoelectric Energy Harvesting,” 26th Asia and South Pacific Design Automation Conference (ASP-DAC), pp. 11-12, Jan., 2021.