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架空の学生がチップの模式図を投影して発表し、聴衆からの質問に答える概念イラスト

研究業績一覧PublicationsPublikationen

2026ジャーナル論文Journal PapersZeitschriftenartikel

A 4.2–373 K Functional 800-MS/s 12-b Buffer-Then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC With Integrated Active-Hold TechniqueA 4.2–373 K Functional 800-MS/s 12-b Buffer-Then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC With Integrated Active-Hold TechniqueA 4.2–373 K Functional 800-MS/s 12-b Buffer-Then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC With Integrated Active-Hold Technique

K. Yamashita, K. Yoshioka, C. Ziegler, V. Issakov, H. Ishikuro

IEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State Circuits, vol. 61, no. 3, pp. 977-989

DOI

2026ジャーナル論文Journal PapersZeitschriftenartikel

A Continuous-Time Pulse Compressor with Linear Frequency-Dependent Delay Achieving 1.66-µs Maximum Delay and Received Echo Enhancement by 6.7-dB for Ultrasound ImagingA Continuous-Time Pulse Compressor with Linear Frequency-Dependent Delay Achieving 1.66-µs Maximum Delay and Received Echo Enhancement by 6.7-dB for Ultrasound ImagingA Continuous-Time Pulse Compressor with Linear Frequency-Dependent Delay Achieving 1.66-µs Maximum Delay and Received Echo Enhancement by 6.7-dB for Ultrasound Imaging

S. Kajiyama, M. Mori, Y. Koroyasu, T. Nagata, T. Mitsui, N. Nakano

IEICE Transactions on Fundamentals of Electronics, Communications and Computer SciencesIEICE Transactions on Fundamentals of Electronics, Communications and Computer SciencesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E109.A, no. 1, pp. 13-25

DOI

2026ジャーナル論文Journal PapersZeitschriftenartikel

A Cryo-BiCMOS Controller for Quantum Computers based on Trapped Beryllium IonsA Cryo-BiCMOS Controller for Quantum Computers based on Trapped Beryllium IonsA Cryo-BiCMOS Controller for Quantum Computers based on Trapped Beryllium Ions

P. Toth, P. Shine Eugine, Y. Kudabay, K. Yamashita, S. Halama, J. Parvizinejad

IEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State Circuits, vol. 61, no. 2, pp. 673-689

DOI

2025国際会議International ConferencesInternationale Konferenzen

A 4.6-373K Functional 800MS/s 12b Buffer-then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC with Integrated-Active-Hold TechniqueA 4.6-373K Functional 800MS/s 12b Buffer-then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC with Integrated-Active-Hold TechniqueA 4.6-373K Functional 800MS/s 12b Buffer-then-Amplify Charge-Pump-Based Pipelined TI-SAR ADC with Integrated-Active-Hold Technique

K. Yamashita, K. Yoshioka, C. Ziegler, V. Issakov, H. Ishikuro

IEEE Custom Integrated Circuits Conference (CICC 2025)IEEE Custom Integrated Circuits Conference (CICC 2025)IEEE Custom Integrated Circuits Conference (CICC 2025)

DOI

2025国際会議International ConferencesInternationale Konferenzen

13.3 A Cryo-BiCMOS Controller for 9Be+-Trapped-Ion-Based Quantum Computers13.3 A Cryo-BiCMOS Controller for 9Be+-Trapped-Ion-Based Quantum Computers13.3 A Cryo-BiCMOS Controller for 9Be+-Trapped-Ion-Based Quantum Computers

P. Toth, P. E. Shine, S. Halama, Y. Kudabay, K. Yamashita, H. Ishikuro

IEEE International Solid-State Circuits Conference (ISSCC 2025)IEEE International Solid-State Circuits Conference (ISSCC 2025)IEEE International Solid-State Circuits Conference (ISSCC 2025)

DOI

2024ジャーナル論文Journal PapersZeitschriftenartikel

A 4.6–400 K Functional Ringamp-Based 250 MS/s 12 b Pipelined ADC With PVT-Robust Unity-Gain-Frequency-Aware Bias CalibrationA 4.6–400 K Functional Ringamp-Based 250 MS/s 12 b Pipelined ADC With PVT-Robust Unity-Gain-Frequency-Aware Bias CalibrationA 4.6–400 K Functional Ringamp-Based 250 MS/s 12 b Pipelined ADC With PVT-Robust Unity-Gain-Frequency-Aware Bias Calibration

K. Yamashita, B. Hershberg, K. Yoshioka, H. Ishikuro

IEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State Circuits, vol. 59, no. 3, pp. 740-752

DOI

2024ジャーナル論文Journal PapersZeitschriftenartikel

A 65nm Cryogenic CMOS Design and Performance at 4.2K for Quantum State Controller ApplicationA 65nm Cryogenic CMOS Design and Performance at 4.2K for Quantum State Controller ApplicationA 65nm Cryogenic CMOS Design and Performance at 4.2K for Quantum State Controller Application

P. Toth, H. Ishikuro, V. Issakov

IEEE Journal of the Electron Devices SocietyIEEE Journal of the Electron Devices SocietyIEEE Journal of the Electron Devices Society, vol. 12, pp. 28-33

DOI

2023ジャーナル論文Journal PapersZeitschriftenartikel

A Cryogenic 12 GHz Frequency Doubler With Temperature Compensation for Trapped-Ion Quantum ComputerA Cryogenic 12 GHz Frequency Doubler With Temperature Compensation for Trapped-Ion Quantum ComputerA Cryogenic 12 GHz Frequency Doubler With Temperature Compensation for Trapped-Ion Quantum Computer

P. Toth, A. Meyer, S. Halama, H. Ishikuro, V. Issakov

IEEE Transactions on Circuits and Systems II: Express BriefsIEEE Transactions on Circuits and Systems II: Express BriefsIEEE Transactions on Circuits and Systems II: Express Briefs, vol. 70, no. 10, pp. 3877-3881

DOI

2023ジャーナル論文Journal PapersZeitschriftenartikel

An Active Slew Rate Control Gate Driver IC With Robust Discrete-Time Feedback Technique for 600-V Superjunction MOSFETsAn Active Slew Rate Control Gate Driver IC With Robust Discrete-Time Feedback Technique for 600-V Superjunction MOSFETsAn Active Slew Rate Control Gate Driver IC With Robust Discrete-Time Feedback Technique for 600-V Superjunction MOSFETs

S. Kawai, T. Ueno, H. Ishikuro, K. Onizuka

IEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State CircuitsIEEE Journal of Solid-State Circuits, vol. 58, pp. 428-438

DOI

2023ジャーナル論文Journal PapersZeitschriftenartikel

Accurate Sneak-Path-Controlled Readout for a Cross-Point Resistive Sensor ArrayAccurate Sneak-Path-Controlled Readout for a Cross-Point Resistive Sensor ArrayAccurate Sneak-Path-Controlled Readout for a Cross-Point Resistive Sensor Array

Y. Shiiki, H. Ishikuro

IEEE Sensors JournalIEEE Sensors JournalIEEE Sensors Journal, vol. 23, no. 11, pp. 11746-11753

DOI

2023国際会議International ConferencesInternationale Konferenzen

A 4.6K to 400K Functional PVT-Robust Ringamp-Based 250MS/s 12b Pipelined ADC with Pole-Aware Bias CalibrationA 4.6K to 400K Functional PVT-Robust Ringamp-Based 250MS/s 12b Pipelined ADC with Pole-Aware Bias CalibrationA 4.6K to 400K Functional PVT-Robust Ringamp-Based 250MS/s 12b Pipelined ADC with Pole-Aware Bias Calibration

K. Yamashita, B. Hershberg, K. Yoshioka, H. Ishikuro

IEEE Custom Integrated Circuits Conference (CICC 2023)IEEE Custom Integrated Circuits Conference (CICC 2023)IEEE Custom Integrated Circuits Conference (CICC 2023)

DOI

2023受賞AwardsAuszeichnungen

CICC 2023 Outstanding Student Paper AwardCICC 2023 Outstanding Student Paper AwardCICC 2023 Outstanding Student Paper Award

K. Yamashita

IEEE Custom Integrated Circuits Conference (CICC 2023)IEEE Custom Integrated Circuits Conference (CICC 2023)IEEE Custom Integrated Circuits Conference (CICC 2023)

2022ジャーナル論文Journal PapersZeitschriftenartikel

Optimization of Gate Voltage in Capacitive DC–DC Converters for Thermoelectric Energy HarvestingOptimization of Gate Voltage in Capacitive DC–DC Converters for Thermoelectric Energy HarvestingOptimization of Gate Voltage in Capacitive DC–DC Converters for Thermoelectric Energy Harvesting

Y. Tan, Y. Shiiki, H. Ishikuro

IEEE Transactions on Very Large Scale Integration (VLSI) SystemsIEEE Transactions on Very Large Scale Integration (VLSI) SystemsIEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 30, pp. 463-473

DOI

2022ジャーナル論文Journal PapersZeitschriftenartikel

T/R Switch Composed of Three HV-MOSFETs With 12.1-μW Consumption That Enables Per-Channel Self-Loopback AC Tests and −18.1-dB Switching Noise Suppression for 3-D Ultrasound Imaging With 3072-Ch TransceiverT/R Switch Composed of Three HV-MOSFETs With 12.1-μW Consumption That Enables Per-Channel Self-Loopback AC Tests and −18.1-dB Switching Noise Suppression for 3-D Ultrasound Imaging With 3072-Ch TransceiverT/R Switch Composed of Three HV-MOSFETs With 12.1-μW Consumption That Enables Per-Channel Self-Loopback AC Tests and −18.1-dB Switching Noise Suppression for 3-D Ultrasound Imaging With 3072-Ch Transceiver

S. Kajiyama, Y. Igarashi, T. Yazaki, Y. Katsube, T. Nishimoto, T. Nakagawa

IEEE Transactions on Very Large Scale Integration (VLSI) SystemsIEEE Transactions on Very Large Scale Integration (VLSI) SystemsIEEE Transactions on Very Large Scale Integration (VLSI) Systems, vol. 30, no. 2, pp. 153-165

DOI

2021国際会議International ConferencesInternationale Konferenzen

A 0.12V Fully Integrated Charge Pump with Gate Voltage Optimization for Energy Harvesting ApplicationsA 0.12V Fully Integrated Charge Pump with Gate Voltage Optimization for Energy Harvesting ApplicationsA 0.12V Fully Integrated Charge Pump with Gate Voltage Optimization for Energy Harvesting Applications

Y. Tan, H. Ishikuro

IEEE International ConferenceIEEE International ConferenceIEEE International Conference

DOI

2020国際会議International ConferencesInternationale Konferenzen

A Discrete-Time Model for Frequency Modulated Charge Pumps with Synchronized ControllerA Discrete-Time Model for Frequency Modulated Charge Pumps with Synchronized ControllerA Discrete-Time Model for Frequency Modulated Charge Pumps with Synchronized Controller

Y. Tan, H. Ishikuro

Midwest Symposium on Circuits and Systems (MWSCAS 2020)Midwest Symposium on Circuits and Systems (MWSCAS 2020)Midwest Symposium on Circuits and Systems (MWSCAS 2020)

DOI

2020国際会議International ConferencesInternationale Konferenzen

A Wide Input-Range, Low-Power and Highly Flexible 18 Bit Time-to-Digital Converter with Compact Differential Circuit TopologyA Wide Input-Range, Low-Power and Highly Flexible 18 Bit Time-to-Digital Converter with Compact Differential Circuit TopologyA Wide Input-Range, Low-Power and Highly Flexible 18 Bit Time-to-Digital Converter with Compact Differential Circuit Topology

P. Toth, H. Ishikuro

Midwest Symposium on Circuits and Systems (MWSCAS 2020)Midwest Symposium on Circuits and Systems (MWSCAS 2020)Midwest Symposium on Circuits and Systems (MWSCAS 2020)

DOI

2020国際会議International ConferencesInternationale Konferenzen

A digital-to-resistance converter with an automatic offset calibration methodA digital-to-resistance converter with an automatic offset calibration methodA digital-to-resistance converter with an automatic offset calibration method

S. Nakagawa, et al.

IEEE I2MTC 2020IEEE I2MTC 2020IEEE I2MTC 2020

DOI

2019ジャーナル論文Journal PapersZeitschriftenartikel

Low-Power and ppm-Level Multimolecule Detection by Integration of Self-Heated Metal Nanosheet SensorsLow-Power and ppm-Level Multimolecule Detection by Integration of Self-Heated Metal Nanosheet SensorsLow-Power and ppm-Level Multimolecule Detection by Integration of Self-Heated Metal Nanosheet Sensors

T. Tanaka, T. Yanagida, K. Uchida, H. Ishikuro, et al.

IEEE Transactions on Electron DevicesIEEE Transactions on Electron DevicesIEEE Transactions on Electron Devices, vol. 66, no. 12, pp. 5393-5398

DOI

2007受賞AwardsAuszeichnungen

LSI IPデザインアワード(磁界結合パルス伝送高速ワイヤレスインターフェース回路の設計)LSI IP Design Award (Magnetic Field Coupling Pulse Transmission High-Speed Wireless Interface Circuit Design)LSI IP Design Award (Magnetic Field Coupling Pulse Transmission High-Speed Wireless Interface Circuit Design)

H. Ishikuro

電気・電子情報学術振興財団Foundation for Electrical and Electronic Information Technology AdvancementFoundation for Electrical and Electronic Information Technology Advancement