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2022

国際学会

1. K. Ota, Y. Fu, K. Narita, C. Wakabayashi, A. Hiraiwa, H. Kawarada, “Normally-off operation in (001) Vertical Diamond MOSFET using Oxidized Si termination diamond channel", 2022 MRS Fall Meeting & Exhibit, Boston, USA, Nov. 27-Dec. 2, 2022(Oral, Nov. 30 2022)
2. K. Hayasaka, M. Ueda, K. Kanehisa, Y. Ueda, K. Otani, T. Tanii, T. Kageura, S. Onoda, S. Kono, H. Kawarada,"High-Density NV Ensemble Produced by Electron Irradiation of Ultra High-Concentration Nitrogen-doped CVD Diamond", 2022 MRS Fall Meeting & Exhibit, Boston, USA, Nov 27-Dec 2, 2022.(Oral, Nov. 29,2022)
3. A. Takahashi, M. Arai, F. Asai, Y. Suzuki, A. Hiraiwa, H. Kawarada, “2DHG diamond MOSFETs with multi-finger structure for gate width expansion and improved RF characteristics”, 2022 MRS Fall meeting ＆ Exhibit, Boston, USA, Nov 27-Dec 2, 2022(Oral, Nov. 30, 2022)
4. R. Nomoto, H. Sato, Y. H.Chang, H. Kawarada, "Proposal of A Common Gate Method Suitable for Multi Sensing Using Diamond Electrolyte Solution Gate FETs", 2022 MRS Fall Meeting & Exhibit, Boston, USA, Nov. 27-Dec. 2, 2022. (Oral, Nov. 28, 2022)
5. C. Wakabayashi, Y. Takahashi, T. Kageura, Y. Takano, M. Tachiki, S. Ooi, S. Arisawa, H. Kawarada,"1.6K Operation of Diamond FETs with Superconducting Diamond Sources and Drains targeting JoFET or SCFET operation", 2022 MRS Fall Meeting &Exhibit, Boston, USA, Nov 27-Dec 2, 2022. (Oral, Nov. 30, 2022)
6. M. Ueda, K. Hayasaka, K. Kanehisa, Y. Takahashi, C. Wakabayashi, T. Kageura, H. Kawarada, "Ultra High-Concentration Nitrogen-doped CVD Diamond with Highest Crystallinity" 2022 MRS Fall Meeting & Exhibit, Boston, USA, Nov 27-Dec 2, 2022.(Poster, Nov. 29, 2022) (Best Student Poster Award)
7. K. Hayasaka, M. Ueda, K. Kanehisa, T. Tanii, S. Onoda, S. Enemoto, S. Kono, H. Kawarada, "High-Density NV Centers of Ultra High-Concentration Nitrogen-doped CVD Diamond Using Vacancies Created by Transmission Electron Microscope," The 2nd Internatioal Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture(DEJI2MA), Senri Life Science Center, Osaka, Japan, Oct. 25, 2022(Poster)
8. K. Ota, Y. Fu, K. Narita, C. Wakabayashi, A. Hiraiwa, H. Kawarada, "Achievement of the first Normally-off operation in Vertical Diamond MOSFETs using Oxidized Si termination diamond channel", The 2nd Internatioal Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture(DEJI2MA), Senri Life Science Center, Osaka, Japan, Oct. 25, 2022(Poster)
9. H. Sato, K. Masadome, L. Nomoto, Y. H. Chang, H. Kawarada, "Seawater Wireless Communication in Pipe filled with Seawater Mediated by Ions in Electrolyte Solutions by utilizing Diamond Solution Gate FET," The 2nd Internatioal Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture(DEJI2MA), Senri Life Science Center, Osaka, Japan, Oct. 25, 2022(Poster)
10. F. Asai, M. Arai, A. Takahashi, Y. Suzuki, A. Hiraiwa, H. Kawarada, "Multi-finger 2DHG diamond MOSFETs with air-bridge structure for gate width expansion and improved RF characteristics", The 2nd Internatioal Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture(DEJI2MA), Senri Life Science Center, Osaka, Japan, Oct. 25, 2022(Poster)
11. ReonaNomoto,HirotakaSato, Yu Hao Chang, Hiroshi Kawarada, "Multi-Sensing Using Ion-Sensitive FETs by Common-Gate Method", The 2nd Internatioal Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture(DEJI2MA), Senri Life Science Center, Osaka, Japan, Oct. 25, 2022(Poster)
12. H. Kawarada, , Y. Takahashi, , C. Wakabayashi, M. Tachiki,, S. Ooi, S. Arisawa, Y. Takano, "Diamond superconductivity for Josephson junction, SQUID and FET application," 2022 JSPS 146th Committee International Symposium on Superconductor Electronics, 15th Superconducting SFQ VLSI Workshop, 4th Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems, Kyoto Research Park(Kyoto), Japan, Sept. 28-30, 2022 (Invited, Sept. 29, 2022)
13. C. Wakabayashi, Y. Takahashi, T. Kageura, Y. Takano, M. Tachiki, S. Ooi, S. Arisawa, H. Kawarada, "Low Temperature Operation of 2DHG Diamond FETs with Superconducting Diamond Sources and Drains aiming at JoFET or SCFET operation," 2022 International Conference on Solid State Devices and Materials (SSDM2022), Sept. 26-29, 2022 (Online-Oral, Sep. 27, 2022)
14. M. Ueda, K. Hayasaka, K. Kanehisa, Y. Takahashi, C. Wakabayashi, T. Kageura, H. Kawarada, "Characterization of Ultra High-Concentration Nitrogen-doped CVD Diamond" 2022 International Conference on Solid State Devices and Materials (SSDM2022), Sept. 26-29, 2022 (Online-Oral, Sep. 27, 2022)
15. A. Takahashi, M. Arai, Y. Suzuki, F. Asai, A. Hiraiwa, M. Tsuru, Y. Yamaguchi, Y. Komatsuzaki, K. Kudara, H. Kawarada, "2DHG diamond MOSFETs with multi-finger structure for gate width expansion and improved RF characteristics," 2022 International Conference on Solid State Devices and Materials (SSDM2022), Sept. 26-29, 2022 (Online-Oral, Sep. 28, 2022)
16. H. Kawarada, "Oxidized Si terminated (C-Si-O) diamond and ultra highly boron doped diamond for industrial device application", NDNC 2022, Kanazawa, Japan, Jun. 6-9, 2022.(Invited, Jun. 8, 2022)
17. H. Kawarada, "Vertical Diamond p-FETs with Normally-Off Operation for Complementary High Power and High Speed Inverters", 2022 MRS Spring Meeting & Exhibit, Hawaii, USA, May 8-13, 2022. (Invited, May 10, 2022)