Journal Papers
  • Kousuke Miyaji, Chinglin Hung and Ken Takeuchi, “Scaling Trends and Tradeoffs between Short Channel Effect and Channel Boosting Characteristics in sub-20nm Bulk/SOI NAND Flash Memory,” Japanese Journal of Applied Physics (JJAP), vol. 51, no. 4, pp. 04DD12, April 2012.

  • Kazuhide Higuchi, Kousuke Miyaji, Koh Johguchi and Ken Takeuchi, “Endurance Enhancement and High Speed Set/Reset of 50nm Generation HfO2–based Resistive Random Access Memory (ReRAM) Cell by Intelligent Set/Reset Pulse Shape Optimization and Verify Scheme,” Japanese Journal of Applied Physics (JJAP), vol. 51, no. 2, pp. 02BD07, February 2012.

  • Kousuke Miyaji, Yasuhiro Shinozuka and Ken Takeuchi, “Zero Additional Process, Local Charge Trap, Embedded Flash Memory with Drain-side Assisted Erase Scheme Using Minimum Channel Length/Width Standard CMOS Single Transistor Cell,” Japanese Journal of Applied Physics (JJAP), vol. 51, no. 4, pp. 04DD02, April 2012.

  • Kousuke Miyaji, Kentaro Honda, Shuhei Tanakamaru, Shinji Miyano and Ken Takeuchi, “Analysis of Operation Margin and Read Speed in 6T- and 8T-SRAM with Local Electron Injected Asymmetric Pass Gate Transistor,” IEICE Transactions on Electronics, vol. E95-C, no. 4, pp. 564-571, April 2012.

  • Kousuke Miyaji, Ryoji Yajima, Teruyoshi Hatanaka, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “Initialize & and Weak-Program Erasing Scheme and Single-Pulse Programming Scheme for High-Performance and High-Reliability Ferroelectric NAND Flash Solid-State Drive,” IEICE Transactions on Electronics, vol. E95-C, no. 4, pp. 609-616, April 2012.

  • Shuhei Tanakamaru and Ken Takeuchi, “A 0.5V Operation VTH Loss Compensated DRAM Word-line Booster Circuit for Ultra-Low Power VLSI Systems,” IEEE J. of Solid-State Circuits, vol. 46, no. 10, pp. 2406-2415, October 2011.

  • Kousuke Miyaji, Shuhei Tanakamaru, Kentaro Honda, Shinji Miyano and Ken Takeuchi, “Improvement of Read Margin and its Distribution by VTH Mismatch Self-Repair in 6T-SRAM with Asymmetric Pass Gate Transistor Formed by Post-Process Local Electron Injection,” IEEE J. of Solid-State Circuits, vol. 46, no. 9, pp. 2180-2188, September 2011.

  • Koichi Ishida, Tadashi Yasufuku, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai and Ken Takeuchi, “1.8V Low-Transient-Energy Adaptive Program-Voltage Generator Based on Boost Converter for 3D-Integrated NAND,” IEEE J. of Solid-State Circuits, vol. 46, no. 6, pp. 1478-1487, June 2011.

  • Teruyoshi Hatanaka, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “Improvement of Read Disturb, Program Disturb and Data Retention by Memory Cell VTH Optimization of Ferroelectric (Fe)-NAND Flash Memories for Highly Reliable and Low Power Enterprise Solid-State Drives (SSDs),” IEICE Transactions on Electronics, vol. E94-C, no. 4, pp. 539-547, April 2011.

  • Mayumi Fukuda, Kazuhide Higuchi and Ken Takeuchi, “Non-volatile RAM and NAND Flash Memory-Integrated Solid-State Drives (SSDs) with Adaptive Codeword ECC for 3.6-Times Acceptable Raw Bit Error Rate Enhancement and 97% Power Reduction,” Japanese Journal of Applied Physics (JJAP), vol. 50, no.4, pp. 04DE09, April 2011.

  • Kousuke Miyaji, Shinji Noda, Teruyoshi Hatanaka, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “A 1.0V Power Supply, 9.5GByte/sec Write Speed, Single-Cell Self-Boost Program Scheme for Ferroelectric NAND Flash SSD,” Solid-State Electronics, vol. 58, no. 1, pp. 34-41, April 2011.

  • Shuhei Tanakamaru, Mayumi Fukuda, Kazuhide Higuchi, Atsushi Esumi, Mitsuyoshi Ito, Kai Li and Ken Takeuchi, “Post-manufacturing, 17-times Acceptable Raw Bit Error Rate Enhancement, Dynamic Codeword Transition ECC Scheme for Highly Reliable Solid-State Drives, SSDs,” Solid-State Electronics, vol. 58, no. 1, pp. 2-10, April 2011.

  • Koh Johguchi, Teruyoshi Hatanaka, Koichi Ishida, Tadashi Yasufuku, Makoto Takamiya, Takayasu Sakurai and Ken Takeuchi, “Through-Silicon-Via (TSV) design for a 3D-Solid-State-Drive (SSD) System with Boost Converter in a Package,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 1, no. 2, pp. 269-277, February 2011.

  • Shuhei Tanakamaru, Teruyoshi Hatanaka, Ryoji Yajima, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “A 0.5-V 6-Transistor Static Random Access Memory with Ferroelectric-Gate Field Effect Transistors,” Japanese Journal of Applied Physics (JJAP), vol. 49, no. 12, pp. 121501-121509, December 2010.

  • Teruyoshi Hatanaka, Ryoji Yajima, Takeshi Horiuchi, Shouyu Wang, Xizhen Zhang, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “Ferroelectric (Fe)-NAND Flash Memory with Batch Write Algorithm and Smart Data Store to the Non-volatile Page Buffer for Data Center Application High Speed and Highly Reliable Enterprise Solid-State Drives (SSD),” IEEE J. of Solid-State Circuits, vol. 45, no. 10, pp. 2156-2164, October 2010.

  • Shinji Noda, Teruyoshi Hatanaka, Kousuke Miyaji, Ryoji Yajima, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “A 1.2V Power Supply, 2.43 Times Power Efficient, Adaptive Charge Pump Circuit with Optimized VTH at Each Pump Stage for Ferroelectric (Fe)-NAND Flash Memories,” Japanese Journal of Applied Physics (JJAP), vol. 49, no.4, pp. 04DD10-04DD15, April 2010.

  • Teruyoshi Hatanaka, Ryoji Yajima, Mitsue Takahashi, Shigeki Sakai and Ken Takeuchi, “A Negative Word-line Voltage Negatively-Incremental Erase Pulse Scheme with ΔVTH=1/6 ΔVERASE for Enterprise Solid-State Drive (SSD) Application Ferroelectric (Fe)-NAND Flash Memories,” Japanese Journal of Applied Physics (JJAP),vol. 49, no.4, pp. 04DD08-04DD13, April 2010.

  • Tadashi Yasufuku, Koichi Ishida, Shinji Miyamoto, Hiroto Nakai, Makoto Takamiya, Takayasu Sakurai and Ken Takeuchi, “Inductor and TSV Design of 20-V Boost Converter for Low Power 3D Solid State Drive with NAND Flash Memories,” IEICE Transactions on Electronics, vol. E93-C, no.3, pp. 317-323, March 2010.

  • Tsuyoshi Sekitani, Tomoyuki Yokota, Ute Zschieschang, Hagen Klauk, Siegfried Bauer, Ken Takeuchi, Makoto Takamiya, Takayasu Sakurai and Takao Someya, “Organic Nonvolatile Memory Transistors for Flexible Sensor Arrays,” Science, vol. 326, no. 5959, pp. 1516-1519, December 2009.

  • ShouyuWang, Mitue Takahashi, Qiu-Hong Li, Ken Takeuchi and Shigeki Sakai, “Operational method of a ferroelectric (Fe)-NAND flash memory array,” Semiconductor Science and Technology, 105029, 24, October 2009.

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