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Low-damage Processing of Nitride Semiconductors Based on Self-stoping Oxdization and Transistor Applications

Research Project

Project/Area Number 17H03224
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionHokkaido University

Principal Investigator

Sato Taketomo  北海道大学, 量子集積エレクトロニクス研究センター, 准教授 (50343009)

Co-Investigator(Kenkyū-buntansha) 本久 順一  北海道大学, 情報科学研究院, 教授 (60212263)
橋詰 保  北海道大学, 量子集積エレクトロニクス研究センター, 教授 (80149898)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Keywords窒化ガリウム / 電気化学プロセス / 低損傷エッチング / トランジスタ / 窒化物半導体 / 電子デバイス / 電気化学反応 / ウェットエッチング
Outline of Final Research Achievements

The photo-electrochemical (PEC) process was developed for fabricating recessed-gate AlGaN/GaN high-electron-mobility transistors (HEMTs). The photo-carriers generated in the top AlGaN layer caused homogeneous etching of AlGaN with a smooth surface. Self-termination phenomena observed under optimal PEC condition were useful for precisely controlling the etching depth in the AlGaN layer. Two types of HEMTs, i.e., Schottky-gate and metal-insulator-semiconductor (MIS)-gate, were fabricated. A recessed-gate AlGaN/GaN structure fabricated with PEC etching showed positive threshold voltage, and its variation was very small. A recessed-gate structure with PEC etching showed better current transport controllability with a small subthreshold-slope than that of planar-gate and dry-etched-gate AlGaN/GaN structures.

Academic Significance and Societal Importance of the Research Achievements

本課題で開発した光電気化学(PEC)エッチングにより、従来のドライエッチングで問題となっていた加工損傷を大幅に抑制させることに成功し、ナノメートルスケールでエッチング深さの精密制御が達成された。さらに、エッチング機構を解明し広範の窒化物材料に適用するための基盤技術を確立した。これらの成果は、Siに代わる次世代電力変換用トランジスタとして期待されているGaN系トランジスタの信頼性・安定性向上に繋がると期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (59 results)

All 2020 2019 2018 2017 Other

All Journal Article (12 results) (of which Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (42 results) (of which Int'l Joint Research: 24 results,  Invited: 10 results) Remarks (3 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Thermal-assisted contactless photoelectrochemical etching for GaN2020

    • Author(s)
      Horikiri Fumimasa、Fukuhara Noboru、Ohta Hiroshi、Asai Naomi、Narita Yoshinobu、Yoshida Takehiro、Mishima Tomoyoshi、Toguchi Masachika、Miwa Kazuki、Ogami Hiroki、Sato Taketomo
    • Journal Title

      Applied Physics Express

      Volume: 13 Issue: 4 Pages: 046501-046501

    • DOI

      10.35848/1882-0786/ab7e09

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Self-termination of contactless photo-electrochemical (PEC) etching on aluminum gallium nitride/gallium nitride heterostructures2020

    • Author(s)
      2.K. Miwa, Y. Komatsu, M. Toguchi, F. Horikiri, N. Fukuhara, Y. Narita, O. Ichikawa, R. Isono, T. Tanaka, and T. Sato
    • Journal Title

      Applied Physics Express

      Volume: 13 Issue: 2 Pages: 026508-026508

    • DOI

      10.35848/1882-0786/ab6f28

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low-Damage Etching for AlGaN/GaN HEMTs Using Photo-Electrochemical Reactions2019

    • Author(s)
      T. Sato, M. Toguchi, Y. Komatsu, and K. Uemur
    • Journal Title

      IEEE Transactions on Semiconductor Manufacturing

      Volume: 32 Issue: 4 Pages: 483-488

    • DOI

      10.1109/tsm.2019.2934727

    • NAID

      120006783672

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoelectrochemical Etching Technology for Gallium Nitride Power and RF Devices2019

    • Author(s)
      Horikiri Fumimasa、Sato Taketomo、Fukuhara Noboru、Ohta Hiroshi、Asai Naomi、Narita Yoshinobu、Yoshida Takehiro、Mishima Tomoyoshi、Toguchi Masachika、Miwa Kazuki
    • Journal Title

      IEEE Transactions on Semiconductor Manufacturing

      Volume: 32 Issue: 4 Pages: 489-495

    • DOI

      10.1109/tsm.2019.2944844

    • NAID

      120006783673

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic Electrochemical Etching of Porous Gallium Nitride by Sub-Bandgap Absorption Due to Franz-Keldysh Effect2019

    • Author(s)
      M. Toguchi, K. Miwa, T. Sato
    • Journal Title

      Journal of The Electrochemical Society

      Volume: 166 Issue: 12 Pages: H510-H512

    • DOI

      10.1149/2.0551912jes

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of photoelectrochemical etching and post-metallization annealing on gate controllability of AlGaN/GaN high electron mobility transistors2019

    • Author(s)
      Uemura Keisuke、Deki Manato、Honda Yoshio、Amano Hiroshi、Sato Taketomo
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: SC Pages: SCCD20-SCCD20

    • DOI

      10.7567/1347-4065/ab06b9

    • NAID

      210000156115

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electrodeless photo-assisted electrochemical etching of GaN using a H3PO4-based solution containing S2O8 2? ions2019

    • Author(s)
      Toguchi Masachika、Miwa Kazuki、Horikiri Fumimasa、Fukuhara Noboru、Narita Yoshinobu、Yoshida Takehiro、Sato Taketomo
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 6 Pages: 066504-066504

    • DOI

      10.7567/1882-0786/ab21a1

    • NAID

      120006847765

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simple wet-etching technology for GaN using an electrodeless photo-assisted electrochemical reaction with a luminous array film as the UV source2019

    • Author(s)
      Horikiri Fumimasa、Fukuhara Noboru、Ohta Hiroshi、Asai Naomi、Narita Yoshinobu、Yoshida Takehiro、Mishima Tomoyoshi、Toguchi Masachika、Miwa Kazuki、Sato Taketomo
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 3 Pages: 031003-031003

    • DOI

      10.7567/1882-0786/ab043c

    • NAID

      210000135635

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of a photo-assisted electrochemical etching process removing dry-etching damage in GaN2018

    • Author(s)
      S. Matsumoto, M. Toguchi, K. Takeda, T. Narita, T. Kachi, and T. Sato
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 57 Issue: 12 Pages: 121001-121001

    • DOI

      10.7567/jjap.57.121001

    • NAID

      120006764183

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Precise Structural Control of GaN Porous Nanostructures Utilizing Anisotropic Electrochemical and Chemical Etching for the Optical and Photoelectrochemical Applications2017

    • Author(s)
      Kumazaki Yusuke、Matsumoto Satoru、Sato Taketomo
    • Journal Title

      Journal of The Electrochemical Society

      Volume: 164 Issue: 7 Pages: H477-H483

    • DOI

      10.1149/2.0771707jes

    • NAID

      120006313473

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Precise thickness control in recess etching of AlGaN/GaN hetero-structure using photocarrier-regulated electrochemical process2017

    • Author(s)
      Kumazaki Yusuke、Uemura Keisuke、Sato Taketomo、Hashizume Tamotsu
    • Journal Title

      J. Appl. Phys.

      Volume: 121 Issue: 18 Pages: 184501-184501

    • DOI

      10.1063/1.4983013

    • NAID

      120006463556

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 光電気化学反応を利用した窒化物半導体の低損傷エッチングと電子デバイスへの応用2017

    • Author(s)
      植村圭佑,松本悟,渡久地政周,伊藤圭亮,佐藤 威友
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: 117 Pages: 23-26

    • Related Report
      2017 Annual Research Report
  • [Presentation] 加熱による硫酸ラジカルの生成とn-GaN光電気化学(PEC)エッチングへの応用2020

    • Author(s)
      三輪 和希,大神 洸貴,渡久地 政周,堀切 文正,福原 昇,成田 好伸,吉田 丈洋,佐藤 威友
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] GaN の光電気化学(PEC)エッチングが有する可能性③加熱によるエッチング速度の向上2020

    • Author(s)
      堀切 文正,福原 昇,太田 博,浅井 直美,成田 好伸,吉田 丈洋,三島 友義,渡久地 政周,三輪 和希,大神 洸貴,佐藤 威友
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] コンタクトレス光電気化学エッチングによるリセスゲート AlGaN/GaN HEMT の作製2020

    • Author(s)
      渡久地 政周,三輪 和希,堀切 文正,福原 昇,成田 好伸,市川 磨,磯野 僚多,田中 丈士,佐藤 威友
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 電気化学的手法を用いたICP-RIE加工n-GaN表面の評価2020

    • Author(s)
      武田 健太郎,山田 真嗣,渡久地 政周,加地 徹,佐藤 威友
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] GaN Wet Etching Process for HEMT Devices2020

    • Author(s)
      F. Horikiri, N. Fukuhara, M. Toguchi, and T. Sato
    • Organizer
      12th International symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] III-V族化合物半導体のウェットエッチング ~窒化物半導体に関する最近の話題を中心に~2019

    • Author(s)
      佐藤 威友,渡久地 政周
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] K2S2O8/H3PO4 混合溶液を用いた n-GaN のコンタクトレスエッチング2019

    • Author(s)
      渡久地 政周,三輪 和希,堀切 文正,福原 昇,成田 好伸,吉田 丈洋,佐藤 威友
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 電気化学インピーダンス法を用いたn-GaN加工表面の評価 (2)2019

    • Author(s)
      武田 健太郎,渡久地 政周,佐藤 威友
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 高濃度n型GaN基板に対する光電気化学(PEC)エッチングの調査2019

    • Author(s)
      三輪 和希,渡久地 政周,佐藤 威友
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] AlGaInN/AlGaNヘテロ構造の光電気化学エッチング(2)2019

    • Author(s)
      小松 祐斗,渡久地 政周,斉藤 早紀,三好 実人,佐藤 威友
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Damage-less Wet Etching for Normally-off AlGaN/GaN HEMTs using Photo-electrochemical Reactions2019

    • Author(s)
      T. Sato, K. Uemura, and M. Toguchi
    • Organizer
      2019 International Conference on Compound Semiconductor Manufacturing Technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] GaN Wet Etching Process for Power and RF Devices2019

    • Author(s)
      F. Horikiri, N. Fukuhara, H. Ohta, N. Asai, Y. Narita, T. Yoshida, T. Mishima, M. Toguchi, K. Miwa, and T. Sato
    • Organizer
      2019 Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] GaN Wet Etching Process2019

    • Author(s)
      F. Horikiri, N. Fukuhara, H. Ohta, N. Asai, Y. Narita, T. Yoshida, T. Mishima, M. Toguchi, K. Miwa, and T. Sato
    • Organizer
      13th Topical Workshop on Heterostructure Microelectronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Photo-electrochemical etching optimized for high-doped n-type GaN2019

    • Author(s)
      K. Miwa, M. Toguchi, T. Sato
    • Organizer
      13th Topical Workshop on Heterostructure Microelectronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of processing-damage induced on n-GaN surface utilizing electrochemical methods2019

    • Author(s)
      K. Takeda, M. Toguchi, T. Sato
    • Organizer
      13th Topical Workshop on Heterostructure Microelectronics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GaN Wet Etching Process for Power and RF Devices2019

    • Author(s)
      F. Horikiri, N. Fukuhara, H. Ohta, N. Asai, Y. Narita, T. Yoshida, T. Mishima, M. Toguchi, K. Miwa, and T. Sato
    • Organizer
      2019 International Conference on Solid State Devices and Materials
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Precise control in recessed-gate etching for AlGaN/GaN HEMTs by utilizing photo- electrochemical reactions2019

    • Author(s)
      Y. Komatsu, M. Toguchi, and T. Sato
    • Organizer
      The 9th Asia-Pacific Workshop on Widegap Semiconductors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simple Photoelectrochemical Etching for GaN HEMT Application2019

    • Author(s)
      F. Horikiri, N. Fukuhara, Y. Narita, T. Yoshida, M. Toguchi, K. Miwa, and T. Sato
    • Organizer
      The 9th Asia-Pacific Workshop on Widegap Semiconductors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of Radical Production Rate from S2O82- ions for GaN Etching2019

    • Author(s)
      M. Toguchi, K. Miwa, F. Horikiri, N. Fukuhara, Y. Narita, T. Yoshida, and T. Sato
    • Organizer
      The 9th Asia-Pacific Workshop on Widegap Semiconductors
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Precise Control in Threshold Voltage of AlGaN/GaN HEMTs by Photoelectrochemical Etching2019

    • Author(s)
      Y. Komatsu, M. Toguchi, and T. Sato
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contactless Photoelectrochemical Etching of n-GaN in K2S2O8 solution2019

    • Author(s)
      M. Toguchi, K. Miwa, F. Horikiri, N. Fukuhara, Y. Narita, T. Yoshida, and T. Sato
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simple Photoelectrochemical Etching of GaN for RF Application2019

    • Author(s)
      F. Horikiri, N. Fukuhara, Y. Narita, T. Yoshida, M. Toguchi, K. Miwa, and T. Sato
    • Organizer
      Materials Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Low-damage wet etching for AlGaN/GaN recessed-gate HEMTs using photo-electrochemical reactions2019

    • Author(s)
      K. Uemura, Y. Komatsu, and T. Sato
    • Organizer
      11th International Symposium on Advanced Plasma Science and its Applications for Nitride and Nanomaterials
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrochemical characterization of etching damage induced to n-GaN surface2019

    • Author(s)
      K. Takeda, M. Toguchi, and T. Sato
    • Organizer
      11th International Symposium on Advanced Plasma Science and its Applications for Nitride and Nanomaterials
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GaNの光電気化学(PEC)エッチングが有する可能性②コンタクトレスでのエッチング2019

    • Author(s)
      堀切文正,福原昇,太田博,浅井直美,成田好伸,吉田丈洋,三島友義,渡久地政周,三輪和希,佐藤威友
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ペルオキソ二硫酸イオン(S2O82-)含有電解液におけるGaNの電気化学特性2019

    • Author(s)
      渡久地政周, 三輪和希, 堀切文正, 福原昇, 成田好伸, 吉田丈洋, 佐藤威友
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] AlGaInN/AlGaNヘテロ構造の光電気化学エッチング2019

    • Author(s)
      小松祐斗、植村圭佑、佐藤威友
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Precisely-controlled etching of gallium nitride utilizing electrochemical reactions2018

    • Author(s)
      T. Sato and M. Toguchi
    • Organizer
      Nanotech Malaysia 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Control of Pore Depth in GaN Porous Structures Utilizing a Photoabsorption Process Under below-Bandgap Illumination2018

    • Author(s)
      M. Toguchi, S. Matsumoto, and T. Sato
    • Organizer
      233rd ECS Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrochemical Formation and Application of Porous Gallium Nitride2018

    • Author(s)
      T. Sato and M. Toguchi
    • Organizer
      Americas International Meeting on Electrochemistry and Solid State Science (AiMES 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Low-damage Etching for GaN-based Electronic Devices utilizing Photo-electrochemical Reactions2018

    • Author(s)
      T. Sato
    • Organizer
      4th Intensive Discussion on Growht of Nitride Semiconductors
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of Photo-electrochemical Etching and Post-metallization Annealing on Gate-controllability of AlGaN/GaN High Electron Mobility Transistors2018

    • Author(s)
      K. Uemura, M. Deki, Y. Honda, H. Amano, and T. Sato
    • Organizer
      International Workshop on Nitride Semiconductors 2018 (IWN2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電気化学インピーダンス法を用いたn-GaN加工表面の評価2018

    • Author(s)
      武田健太郎, 渡久地政周,佐藤 威友
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Recessed-gate AlGaN/GaN High Electron Mobility Transistors (HEMTs) Prepared by Photo-electrochemical Etching and Post-metallization Annealing2018

    • Author(s)
      K. Uemura, M. Deki, Y. Honda, H. Amano, and T. Sato
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 窒化ガリウム加工基板に対する選択的光電気化学エッチングの検討”2018

    • Author(s)
      渡久地政周, 武田健太郎, 佐藤威友
    • Organizer
      2018 年 電気化学秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] AlGaN/GaNへテロ構造トランジスタを基盤とする高感度化学センサの検討2018

    • Author(s)
      小松祐斗、植村圭佑、渡久地政周、佐藤威友
    • Organizer
      2018 年 電気化学秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Precise thickness control in recess-etching for normally-off AlGaN/GaN HEMTs using a low damage photo-electrochemical reaction2017

    • Author(s)
      T. Sato, K. Uemura, Y. Kumazaki, and T. Hashizume
    • Organizer
      12th International Conference on Nitride Semiconductors (ICNS 12)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Highly-controllable etching for AlGaN/GaN recessed-gate structures utilizing low-damage electrochemical reactions2017

    • Author(s)
      K. Uemura, Y. Kumazaki, T. Sato, and T. Hashizume
    • Organizer
      12th Topical Workshop on Heterostructure Microelectronics (TWHM 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Removal of reactive-ion-etching damage from n-GaN surface using a photoelectrochemical process2017

    • Author(s)
      S. Matsumoto, M. Toguchi, and T. Sato
    • Organizer
      2017 International Conference on Solid State Devices and Materials (SSDM 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Improved wet-etching processes for GaN-based electron devices2017

    • Author(s)
      T. Sato, K. Uemura, and T. Hashizume
    • Organizer
      2017 MRS Fall Meeting and Exhibit
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 光電気化学(PEC)反応を利用したリセスゲートAlGaN/GaN HEMTの作製2017

    • Author(s)
      植村圭佑、佐藤威友、橋詰保
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 光電気化学反応を利用したn-GaN表面層の低損傷エッチング2017

    • Author(s)
      松本悟,佐藤威友,成田哲生,加地徹,橋詰保
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Remarks] 北海道大学量子集積エレクトロニクス研究センター 電気化学グループ

    • URL

      http://hydrogen.rciqe.hokudai.ac.jp/~taketomo/ec/index.html

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] 北海道大学量子集積エレクトロニクス研究センター

    • URL

      http://www.rciqe.hokudai.ac.jp

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report 2017 Annual Research Report
  • [Remarks] 北海道大学量子集積エレクトロニクス研究センター 電気化学グループ

    • URL

      https://hydrogen.rciqe.hokudai.ac.jp/~taketomo/ec/index.html

    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 構造体の製造方法および中間構造体2019

    • Inventor(s)
      堀切文正,福原昇,佐藤威友,渡久地政周
    • Industrial Property Rights Holder
      堀切文正,福原昇,佐藤威友,渡久地政周
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] エッチング方法及びエッチング装置2017

    • Inventor(s)
      佐藤威友、熊崎祐介、橋詰保
    • Industrial Property Rights Holder
      佐藤威友、熊崎祐介、橋詰保
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-095458
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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