H. Fujimoto, T. Kobayashi, M. Sometani, M. Okamoto, T. Shimura and H. Watanabe,
"Degradation of NO-nitrided SiC MOS interfaces by excimer ultraviolet light irradiation", Applied Physics Express, 15, (10), pp 104004-1~4 (2022).
H. Mizobata, K. Tomigahara, M. Nozaki, T. Kobayashi, A. Yoshigoe, T. Hosoi, T. Shimura, and H. Watanabe,
"Electrical properties and energy band alignment of SiO2/GaN metal-oxide-semiconductor structures fabricated on N-polar GaN(0001)substrates", Applied Physics Letters, 121, (6), pp 062104-1~6 (2022).
T. Hosoi, M. Ohsako, K. Moges, K. Ito, T. Kimoto, M. Sometani, M. Okamoto, A. Yoshigoe, T. Shimura and H. Watanabe,
"Impact of post-nitridation annealing in CO2 ambient on threshold voltage stability in 4H-SiC metal-oxide-semiconductor field-effect transistors", Applied Physics Express, 15, (6), pp 061003-1~5 (2022).
N. H. Ngo, T. G. Etoh, K. Shimonomura, T. Ando, Y. Matsunaga, T. Shimura, H. Watanabe, H. Mutoh, Y. Kamakura and E. Charbon
"Toward Super Temporal Resolution by Suppression of Mixing Effects of Electrons", IEEE Transactions on Electron Devices, 69, (6), pp 2879~2885 (2022).
T. Nakanuma, T. Kobayashi, T. Hosoi, M. Sometani, M. Okamoto, A. Yoshigoe, T. Shimura and H. Watanabe,
"Impact of nitridation on the reliability of 4H-SiC(1120) MOS devices", Applied Physics Express, 15, (4), pp 041002-1~4 (2022).
T. Nakanuma, Y. Iwakata, A. Watanabe, T. Hosoi, T. Kobayashi, M. Sometani, M. Okamoto, A. Yoshigoe, T. Shimura and H. Watanabe,
"Comprehensive physical and electrical characterizations of NO nitrided SiO2/4H-SiC(1120) interfaces", Japanese Journal of Applied Physics, 61, (SC), pp SC1065-1~8 (2022).
Y. Wada, H. Mizobata, M. Nozaki, T. Kobayashi, T. Hosoi, T. Kachi, T. Shimura and H. Watanabe,
"Insight into interface electrical properties of metal–oxide–semiconductor structures fabricated on Mg-implanted GaN activated by ultra-high-pressure annealing", Applied Physics Letters, 120, (8), pp 082103-1~6 (2022).
H. Mizobata, M. Nozaki, T. Kobayashi, T. Hosoi, T. Shimura and H. Watanabe,
"Fixed-charge generation in SiO2/GaN MOS structures by forming gas annealing and its suppression by controlling Ga-oxide interlayer growth", Japanese Journal of Applied Physics, 61, (SC), pp SC1034-1~6 (2022).
国際学会 / International Conferences
T. Shimura, H. Oka, T. Hosoi, Y. Imai, S. Kimura, and H. Watanabe,
"Fabrication of Tensile-strained Single-crystalline GeSn Wires on Amorphous Quartz Substrates by Local Liquid-phase Crystallization",
The 8th International Symposium on Advanced Science and Technology of Silicon Materials, P-13 (Nov. 7-9, 2022, Okayama, Japan).
T. Kobayashi, B. Mikake, H. Mizobata, M. Nozaki, T. Shimura, H. Watanabe,
"Control of oxidation and reduction reactions at SiO2/GaN interfaces towards high performance and reliability GaN MOSFETs"
International Workshop on Nitride Semiconductors 2022 (IWN 2022) AT 158, Oct.12,(Berlin, Germany, Oct.9-14, 2022)
K. Onishi, T. Kobayashi, H. Mizobata, M. Nozaki, A. Yoshigoe, T. Shimura, H. Watanabe,
"Fabrication of stable and low leakage SiO2/GaN MOS devices by sputter deposition of SiO2 combined with post annealing processes"
International Workshop on Nitride Semiconductors 2022 (IWN 2022) PP 252, Oct.11,(Berlin, Germany, Oct.9-14, 2022)
T. Kobayashi, K. Tomigahara, H. Mizobata, M. Nozaki, T. Shimura, H. Watanabe,
"Evaluation of hole trap density at SiO2/GaN MOS interfaces through capacitance-voltage measurements under ultraviolet light illumination"
International Workshop on Nitride Semiconductors 2022 (IWN 2022) PP 035, Oct.10,(Berlin, Germany, Oct.9-14, 2022)
T. Shimura, R. Yamaguchi, N. Tabuchi, M. Kondo, M. Kuniyoshi, T. Hosoi, T. Kobayashi, H. Watanabe,
"Controllability of Luminescence Wavelength from GeSn Wires Fabricated by Laser Zone Melting on Quartz Substrates"
2022 International Conference on Solid State Devices and Materials(SSDM 2022), A-2-04, Sep.27,(Chiba, Sep.26-29, 2022)
A. Suzuki, T. Nakanuma, T. Kobayashi, M. Sometani, M. Okamoto, A. Yoshigoe, T. Shimura, H. Watanabe,
"Analysis of leakage current mechanisms in NO-nitrided SiC(1-100) MOS devices"
2022 International Conference on Solid State Devices and Materials(SSDM 2022), J-6-05, Sep.28,(Chiba, Sep.26-29, 2022)
K. Onishi, T. Kobayashi, H. Mizobata, M. Nozaki, A. Yoshigoe, T. Shimura, H. Watanabe,
"Suppression of GaOx interlayer growth towards stable SiO2/GaN MOS devices"
2022 International Conference on Solid State Devices and Materials(SSDM 2022), J-6-02, Sep.28,(Chiba, Sep.26-29, 2022)
S. Ogawa, H. Mizobata, T. Kobayashi, T. Shimura, H. Watanabe,
"Characterization of Trap States of SiO2/GaN Interface and SiO2 Layer by Deep Level Transient Spectroscopy"
2022 International Conference on Solid State Devices and Materials(SSDM 2022), J-6-03, Sep.28,(Chiba, Sep.26-29, 2022)
S. Hattori, A. Oshiyama, S. Miyazaki, H. Watanabe, K. Ueno, R. Tanaka, T. Kondo, S. Takashima, M. Edo, K. Shiraishi,
"Theoretical Study of the Influence of GaOx Layer on the SiO2/GaN Interface"
2022 International Conference on Solid State Devices and Materials(SSDM 2022), J-6-09 (Late News), Sep.28, (Chiba, Sep.26-29, 2022)
H. Watanabe, T. Kobayashi, T. Hosoi, T. Shimura,
"Recent progress and challenges in SiC and GaN MOS devices: understanding of physics and chemistry near the MOS interface"(Invited)
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), Tu-2-A.1, Sep.13,
(Davos, Switzerland, Sep.11-16, 2022)
T. Hosoi, M. Ohsako, K. Moges, K. Ito, T. Kimoto, M. Sometani, M. Okamoto, A. Yoshigoe, T. Shimura, H. Watanabe,
"CO2 post-nitridation annealing for improving immunity to change trapping in SiC MOS devices"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), Tu-2-A.3, Sep.13,
(Davos, Switzerland, Sep.11-16, 2022)
T. Kobayashi, T. Nakanuma, A. Suzuki, M. Sometani, M. Okamoto, A.Yoshigoe, T. Shimura, H. Watanabe,
"Nitridation-induced degradation of SiC(1-100) MOS devices"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), Tu-2-A.4, Sep.13,
(Davos, Switzerland, Sep.11-16, 2022)
M. Kuniyoshi, K. Moges, T. Kobayashi, T. Hosoi, T. Shimura, K. Tachiki, T. Kimoto, H. Watanabe,
"Improved Performance of SiC CMOS Ring Oscillators By Post-nitridation Treatment in CO2"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), We-P-B.13, Sep.14,
(Davos, Switzerland, Sep.11-16, 2022)
T. Nakanuma, T. Kobayashi, K. Tahara, T. Kimura, K. Kutsuki, T. Shimura, H. Watanabe,
"Impact of Oxidation and Post Annealing on the Density and Optical Properties of Color Centers at SiO2/SiC Interfaces"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), We-2-A.4, Sep.14,
(Davos, Switzerland, Sep.11-16, 2022)
H. Fujimoto, T. Kobayashi, M. Sometani, M. Okamoto, T. Shimura, H. Watanabe,
"Degradation of NO-Nitrided SiC MOS Devices Due to Excimer Ultraviolet Light Illumination"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), We-4-A.3, Sep.14,
(Davos, Switzerland, Sep.11-16, 2022)
M. Schober, N. Jungwirth, T. Kobayashi, J. Lehmeyer, M. Krieger, H. Weber, M. Bockstedte,
"The optical properties of the carbon di-vacancy-antisite complex in the light of the TS photo-luminescence center"
19th International Conference on Silicon Carbide and Related Materials (ICSCRM 2022), Mo-4-A.4, Sep.12,
(Davos, Switzerland, Sep.11-16, 2022)
T. Kobayashi, T. Nakanuma, A. Suzuki, M. Sometani, M. Okamoto, A. Yoshigoe, T. Hosoi, T. Shimura, H. Watanabe,
"Reliability Issues in Nitrided SiC MOS Devices" (Invited),
9th International Symposium on Control of Semiconductor Interfaces (ISCSI-IX), WA2-1, Sep.7,
(Nagoya, Japan, Sept.5-8, 2022)
H. Watanabe, H. Mizobata, M. Nozaki, T. Kobayashi, T. Hosoi, T. Shimura,
"Interface science and engineering for GaN-based MOS devices" (Invited),
14th Topical Workshop on Heterostructure Microelectronics(TWHM 2022), 2-1, Aug.30,
(Hiroshima, Japan, Aug.29- Sept.1, 2022)
T. Shimura, S. Tanaka, H. Watanabe, T. Hosoi,
"Fabrication and Luminescence Characterization of Uniaxial Tensile-strained Ge Wires using Internal Stress in Metal Thin Films",
The 19th International Conference on Defects-Recognition, Imaging and Physics in Semiconductors (DRIP19), TuP-3, Aug. 30,
(Virtual Conference, August 29 - September 1, 2022)
T. Shimura,
"Approach to achieving super temporal resolution image sensors beyond 20 picosecond" (plenary),
2022 IEEE International Conference on Imaging Systems and Techniques (IST 2022), Jun.21,
(Virtual Conference, June 21-23, 2022)
M. Sometani, K. Oozono, S. Ji, T. Morimoto, T. Kato, K. Kojima, S. Harada,
"Comparative Study of Performance of SiC SJMOSFETs Formed by Multi-epitaxial Growth and Trench-filling Epitaxial Growth",
IEEE International Symposium on Power Semiconductor Devices and ICs (IEEE ISPSD 2022), May.25,
(Hybrid Conference, Vancouver, Canada and Online, May 22-25, 2022)
Y. Terao, T. Hosoi, S. Takashima, T. Kobayashi, T. Shimura, H. Watanabe,
"Characterization of Electron Traps in Gate Oxide of SiC MOS Capacitors",
IEEE International Reliability Physics Symposium (IRPS 2022), P66, Mar.30,
(Hybrid Conference, Dallas, U.S.A. and Online, March 27-31, 2022)
T. Nakanuma, A. Suzuki, Y. Iwakata, T. Kobayashi, T. Hosoi, T. Shimura, H. Watanabe,
"Investigation of reliability of NO nitrided SiC(1-100) MOS devices",
IEEE International Reliability Physics Symposium (IRPS 2022), 3B.2, Mar.29,
(Hybrid Conference, Dallas, U.S.A. and Online, March 27-31, 2022)
H. Watanabe,
"Gate stack technology for advanced wide bandgap power electronics" (plenary),
The 3rd International Workshop on Materials Science and Advanced Electronics Created by Singularity (IWSingularity 2022) /The 2nd International Symposium on Wide Gap Semiconductor Growth, Process and Device Simulation (ISWGPDs 2022), F-P1, Jan.11,
(Hybrid Conference, Nagoya, Japan and Online, January 11-13, 2022)
IWN 2022 Best Student Poster Presentation Award 大西 健太郎
"Fabrication of stable and low leakage SiO2/GaN MOS devices by sputter deposition of SiO2 combined with post annealing processes,"
October 11, 2022
第16回(2022年度) 応用物理学会フェロー表彰 渡部 平司
"半導体表面界面科学を基軸とした先端MOSデバイスの研究開発,"
July 1, 2022
第27回電子デバイス界面テクノロジー研究会 研究会活性化奨励賞 中沼 貴澄
January 29, 2022