Journal Papers
  • Akira Goda, Chihiro Matsui and Ken Takeuchi, “Stochastic Resonance Modeling of Floating Gate-based Neurons in Summing Networks for Accurate and Energy Efficient Operations,” IEEE Transactions on Electron Devices, vol. 71, no. 3, pp. 1737-1744, January 29, 2024.

  • Chihiro Matsui, Kasidit Toprasertpong, Shinichi Takagi and Ken Takeuchi, “FeFET Local Multiply and Global Accumulate Voltage-sensing Computation-in-Memory Circuit Design for Neuromorphic Computing,” IEEE Transactions on VLSI Systems, December 2023.

  • Kasidit Toprasertpong, Chihiro Matsui, Mitsuru Takenaka, Ken Takeuchi and Shinichi Takagi, “Ferroelectric source follower for voltage-sensing nonvolatile memory and computing-in-memory,” Journal of Physics D: Applied Physics, vol. 56, no. 46, August 23, 2023.

  • Shinsei Yoshikiyo, Naoko Misawa, Kasidit Toprasertpong, Shinichi Takagi, Chihiro Matsui and Ken Takeuchi, “Write Variation & Reliability Error Compensation by Layer-wise Tunable Retraining of Edge FeFET LM-GA CiM,” IEICE Transactions on Electronics, vol. E106-C, no. 7, pp. 352-364, July, 2023.

  • Chihiro Matsui, Eitaro Kobayashi, Naoko Misawa and Ken Takeuchi, “Comprehensive analysis on error-robustness of FeFET computation-in-memory for hyperdimensional computing,” Japanese Journal of Applied Physics (JJAP), vol. 62, pp. SC1053, February 6, 2023.

  • Kazuhide Higuchi, Tomoki Kobayashi, Naoko Misawa, Chihiro Matsui and Ken Takeuchi, “Tiny and error-tolerant ConvLSTM for event-based vision sensor with optimized event representation and ReRAM computation-in-memory,” Japanese Journal of Applied Physics (JJAP), vol. 62, pp. SC1068, February 14, 2023.

  • Akira Goda, Chihiro Matsui and Ken Takeuchi, “A Stochastic Leaky-Integrate-and-Fire Neuron Model With Floating Gate-Based Technology for Fast and Accurate Population Coding,” IEEE Journal of the Electron Devices Society, vol. 10, pp.861-869, September 13, 2022.

  • Chihiro Matsui and Ken Takeuchi, “Heterogeneous Integration of Precise and Approximate Storage for Error-tolerant Workloads,” IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, September 5, 2022.

  • Chihiro Matsui, Kazuhide Higuchi, Shunsuke Koshino and Ken Takeuchi, “Event Data-based Computation-in-Memory (CiM) Configuration by Co-designing Integrated In-Sensor & CiM Computing for Extremely Energy Efficient Edge Computing,” Japanese Journal of Applied Physics (JJAP), vol. 61, pp. SC1085, April 7, 2022.

  • Kazuhide Higuchi, Chihiro Matsui, Naoko Misawa and Ken Takeuchi, “Computation-in-memory simulation platform to investigate inference accuracy degradation by device non-ideality interactions in deep neural network applications,” Japanese Journal of Applied Physics (JJAP), vol. 61, pp. SC1054, February 21, 2022.

  • Naoko Misawa, Kenta Taoka, Chihiro Matsui and Ken Takeuchi, “97.6% array area reduction, ReRAM computation-in-memory with hyperparameter optimization based on memory bit-error rate and bit precision of log-encoding simulated annealing,” Japanese Journal of Applied Physics (JJAP), vol. 61, pp. SC1001, February 8, 2022.

  • Chihiro Matsui and Ken Takeuchi, “Non-volatile memory system design of edge server and cloud centralized server for multiple-tier 5G network,” Japanese Journal of Applied Physics (JJAP), vol. 60, pp. SBBB05, March 16, 2021.

  • Shun Suzuki, Hiroki Aihara and Ken Takeuchi, “Privacy Protection NAND Flash System with Flexible Data-Lifetime Control by In-3D Vertical Cell Processing,” IEEE J. of Solid-State Circuits, June 2020.

  • Hiroshi Kinoshita, Tsubasa Yonai and Ken Takeuchi, “85% Endurance Error Reduction and Data-retention Lifetime Enhancement by Changing Reset Voltage in 40nm TaOx-based ReRAM,” Japanese Journal of Applied Physics (JJAP), vol. 59, SGGB14, April 2020.

  • Yoshiki Takai, Mamoru Fukuchi, Chihiro Matsui, Reika Kinoshita and Ken Takeuchi, “nalysis on Hybrid SSD Configuration with Emerging Non-volatile Memories Including Quadruple-Level Cell (QLC) NAND Flash Memory and Various Types of Storage Class Memories (SCMs),” IEICE Transactions on Electronics, E103-C, No.4, April 2020.

  • Mamoru Fukuchi, Chihiro Matsui and Ken Takeuchi, “System Performance Comparison of 3D Charge-trap TLC NAND Flash and 2D Floating-gate MLC NAND Flash based SSDs,” IEICE Transactions on Electronics, E103-C, No.4, April 2020.

  • Chihiro Matsui and Ken Takeuchi, “Step-by-Step Design of Memory Hierarchy for Heterogeneously-integrated SCM/NAND Flash Storage,” Integration, the VLSI Journal, vol. 69, pp. 62-74, September 2019.

  • Chihiro Matsui and Ken Takeuchi, “Dynamic Adjustment of Storage Class Memory (SCM) Capacity in Memory-Resource Disaggregated Hybrid Storage with SCM and NAND Flash Memory,” IEEE Transactions on VLSI Systems, vol. 27, no. 8, pp. 1799-1810, August 2019.

  • Yoshiaki Deguchi, Toshiki Nakamura, Atsuna Hayakawa and Ken Takeuchi, “3-D NAND Flash Value-Aware SSD: Error-Tolerant SSD Without ECCs for Image Recognition,” IEEE J. of Solid-State Circuits, vol. 54, no. 6, pp. 1800-1811, March 2019.

  • Toshiki Nakamura, Yoshiaki Deguchi and Ken Takeuchi, “Adaptive Artificial Neural Network-Coupled LDPC ECC as Universal Solution for 3-D and 2-D, Charge-Trap and Floating-Gate NAND Flash Memories,” IEEE J. of Solid-State Circuits, vol. 54, no. 3, pp. 745-754, March 2019.

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