Growth of a Two-Inch GaN Single Crystal Substrate Using the Na Flux Method
Kawamura, Fumio, Umeda, Hidekazu, Morishita, Masanori, Kawahara, Minoru, Yoshimura, Masashi, Mori, Yusuke, Sasaki, Takatomo, Kitaoka, Yasuo
Published in Japanese Journal of Applied Physics (01.11.2006)
Published in Japanese Journal of Applied Physics (01.11.2006)
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Journal Article
Drastic Decrease in Dislocations during Liquid Phase Epitaxy Growth of GaN Single Crystals Using Na flux Method without Any Artificial Processes
Kawamura, Fumio, Umeda, Hidekazu, Kawahara, Minoru, Yoshimura, Masashi, Mori, Yusuke, Sasaki, Takatomo, Okado, Hideaki, Arakawa, Kazuto, Mori, Hirotaro
Published in Japanese Journal of Applied Physics (01.04.2006)
Published in Japanese Journal of Applied Physics (01.04.2006)
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Journal Article
복합체의 제조 방법 및 반도체 장치의 제조 방법
HAGIWARA TAKAHITO, KONDA TETSUSHI, KITAMURA KENJI, UMEDA HIDEKAZU, MATSUBAYASHI RYO
Year of Publication 10.07.2023
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Year of Publication 10.07.2023
Patent
MANUFACTURING METHOD FOR COMPLEX AND MANUFACTURING METHOD FOR SEMICONDUCTOR DEVICE
MATSUBAYASHI, Ryo, UMEDA, Hidekazu, KONDA, Tetsushi, KITAMURA, Kenji, HAGIWARA, Takahito
Year of Publication 19.05.2022
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Year of Publication 19.05.2022
Patent
High power 3-phase to 3-phase matrix converter using dual-gate GaN bidirectional switches
Umeda, Hidekazu, Yamada, Yasuhiro, Asanuma, Kenichi, Kusama, Fumito, Kinoshita, Yusuke, Ueno, Hiroaki, Ishida, Hidetoshi, Hatsuda, Tsuguyasu, Ueda, Tetsuzo
Published in 2018 IEEE Applied Power Electronics Conference and Exposition (APEC) (01.03.2018)
Published in 2018 IEEE Applied Power Electronics Conference and Exposition (APEC) (01.03.2018)
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Conference Proceeding
A compact GaN-based DC-DC converter IC with high-speed gate drivers enabling high efficiencies
Ujita, Shinji, Kinoshita, Yusuke, Umeda, Hidekazu, Morita, Tatsuo, Tamura, Satoshi, Ishida, Masahiro, Ueda, Tetsuzo
Published in 2014 IEEE 26th International Symposium on Power Semiconductor Devices & IC's (ISPSD) (01.06.2014)
Published in 2014 IEEE 26th International Symposium on Power Semiconductor Devices & IC's (ISPSD) (01.06.2014)
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Conference Proceeding
A fully integrated GaN-based power IC including gate drivers for high-efficiency DC-DC Converters
Ujita, Shinji, Kinoshita, Yusuke, Umeda, Hidekazu, Morita, Tatsuo, Kaibara, Kazuhiro, Tamura, Satoshi, Ishida, Masahiro, Ueda, Tetsuzo
Published in 2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits) (01.06.2016)
Published in 2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits) (01.06.2016)
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Conference Proceeding
High-Voltage Isolation Technique Using Fe Ion Implantation for Monolithic Integration of AlGaN/GaN Transistors
Umeda, H., Takizawa, T., Anda, Y., Ueda, T., Tanaka, T.
Published in IEEE transactions on electron devices (01.02.2013)
Published in IEEE transactions on electron devices (01.02.2013)
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Journal Article
GaN-based Gate Injection Transistors for power switching applications
Ueda, Tetsuzo, Handa, Hiroyuki, Kinoshita, Yusuke, Umeda, Hidekazu, Ujita, Shinji, Kajitani, Ryo, Ogawa, Masahiro, Tanaka, Kenichiro, Morita, Tatsuo, Tamura, Satoshi, Ishida, Hidetoshi, Ishida, Masahiro
Published in 2014 IEEE International Electron Devices Meeting (01.12.2014)
Published in 2014 IEEE International Electron Devices Meeting (01.12.2014)
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Conference Proceeding
BIDIRECTIONAL SWITCH AND BIDIRECTIONAL SWITCH DEVICE COMPRISING SAME
UMEDA, Hidekazu, KINOSHITA, Yusuke, YAMADA, Yasuhiro, ICHIRYU, Takashi
Year of Publication 04.10.2018
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Year of Publication 04.10.2018
Patent
Blocking-voltage boosting technology for GaN transistors by widening depletion layer in Si substrates
Umeda, H, Suzuki, A, Anda, Y, Ishida, M, Ueda, T, Tanaka, T, Ueda, D
Published in 2010 International Electron Devices Meeting (01.12.2010)
Published in 2010 International Electron Devices Meeting (01.12.2010)
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Conference Proceeding
Mechanism of Current-Collapse-Free Operation in E-Mode GaN Gate Injection Transistors Employed for Efficient Power Conversion
Tanaka, Kenichiro, Morita, Tatsuo, Umeda, Hidekazu, Tamura, Satoshi, Ishida, Hidetoshi, Ishida, Masahiro, Ueda, Tetsuzo
Published in 2016 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) (01.10.2016)
Published in 2016 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) (01.10.2016)
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Conference Proceeding