Updated on 2024/05/14

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VILLAMIN, Maria Emma
 
Organization
Specially Appointed Faculty Specially Appointed Professor Iwata Laboratory Commissioned Researcher   
Abolition organization Advanced Electron Devices Laboratory   
Degree
博士(工学) ( 東京工業大学 )
Contact information
メールアドレス

Main research papers

Education

  • Tokyo Institute of Technology   Material Science and Engineering   ライフエンジニアリング Human Centered Science & Biomedical Engineering

    2016.10 - 2019.9

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    Country: Japan

  • University of the Philippines - Diliman   Material Science and Engineering   MS Material Science and Engineering

    - 2015.12

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    Country: Philippines

  • University of the Philippines - Diliman   National Institute of Physics   BS Applied Physics

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    Country: Philippines

Professional Memberships

  • JSAP

Research theme

  • Research on compound semiconductor heterojunction power devices

    岩田 直高, VILLAMIN Maria Emma 

    2017

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    Outcome:

    2023
    We have investigated ArF laser activation annealing of an Mg-doped GaN four-point probe small mesa device and presented results in SPIE photonics West 2024

Papers

  • ArF excimer laser activation of Mg-doped GaN small area mesa device Reviewed International coauthorship

    M.E. Villamin, R.C. Roca, I. Kamiya, N. Iwata

    Proc. SPIE Gallium Nitride Materials and Devices XIX   12886   128860F   2024.3

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    Authorship:Lead author   Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:SPIE  

    DOI: 10.1117/12.3002082

  • Characterization of AlGaN/GaN high electron mobility transistors on GaN substrates with different thicknesses of GaN channel and buffer layers using side-gate modulation Reviewed

    VILLAMIN, Maria Emma C., 岩田 直高

    Japanese Journal of Applied Physics   61   SA1015 - 1   2021.12

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

  • Effect of C- and Fe-doped GaN buffer on AlGaN/GaN HEMT performance on GaN substrate using side-gate modulation Reviewed

    VILLAMIN, Maria Emma C., Takaaki Kondo*, 岩田 直高

    Japanese Journal of Applied Physics   60   SBBD17 - 1   2021.3

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)  

Presentations

  • Annealing in Oxygen ambient of In-based contact for Mg-doped p-GaN

    Maria Emma Villamin, Naotaka Iwata

    2024.3 

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    Presentation type:Poster presentation  

  • ArF excimer laser activation of Mg-doped GaN small area mesa device International conference

    Maria Emma Villamin, Ronel Christian Roca, Itaru Kamiya, Naotaka Iwata

    SPIE Photonics West 2024  ( Moscone Center, San Francisco California )   2024.1 

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    Presentation type:Poster presentation  

  • Formation of In/Au low-temperature contact for vertical superjunction GaN devices with laser-activated p-GaN region International conference

    Maria Emma Villamin, Naotaka Iwata

    14th International Conference on Nitride Semiconductors (ICNS-14)   ( Hilton Fukuoka Sea Hawk )   2023.11 

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    Presentation type:Poster presentation  

  • Annealing temperature dependence of In/Au electrode performance on p-GaN

    Maria Emma Villamin, Naotaka Iwata

    2023.9 

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    Presentation type:Poster presentation  

  • GaN Heterojunction Rectifier Diode with Low Turn-On Voltage and High Breakdown Voltage for Energy Harvesting International conference

    Naotaka Iwata, Kouki Hino, Maria Emma Castil Villamin

    2023 International Conference on Solid State Devices and Materials(SSDM2023)  2023.9 

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    Event date: 2023.9

    Presentation type:Poster presentation  

  • N2/O2雰囲気アニールによるAu/Ni/p-GaNオーム性接触の低抵抗化

    岩田 直高、三明純奈、マリア エマ ヴィリアミン

    電子情報通信学会2023年ソサイエティ大会  2023.9 

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    Presentation type:Oral presentation (general)  

  • 低オン電圧高電流特性を示す環境発電用GaNヘテロ接合 整流ダイオード International conference

    Kouki Hino, Maria Emma Villamin, Naotaka Iwata

    2023年第70回応用物理学会春季学術講演会   ( 上智大学 )   2023.3 

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    Presentation type:Poster presentation  

  • Comparison of Thermal and ArF Excimer Laser Activation of Mg doped GaN International conference

    Maria Emma Villamin, Naotaka Iwata

    2023年第70回応用物理学会春季学術講演会   ( 上智大学 )   2023.3 

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    Presentation type:Poster presentation  

  • Drain lag characterization of Fe- and C-doped GaN buffer HEMTs on GaN substrates International conference

    Maria Emma Villamin, Naotaka Iwata

    The 13th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2023)  ( 岐阜大学 )   2023.3 

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    Presentation type:Oral presentation (general)  

  • Comparison of side-gate modulation responses for AlGaN/GaN HEMTs on GaN substrates with and without C-doped GaN buffer layer International conference

    Maria Emma Villamin, Naotaka Iwata

    2021年第68回応用物理学会春季学術講演会  ( Online )   2021.3 

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    Presentation type:Oral presentation (general)  

    ポスター 19p-PO6-8

  • Effect of side-gate modulation on AlGaN/GaN HEMTs on GaN substrates with different GaN channel and buffer thicknesses International conference

    Maria Emma Villamin, Naotaka Iwata

    the 13th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2021)  ( Online )   2021.3 

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    Presentation type:Oral presentation (general)  

    ポスター 10P-20

  • Effect of C- and Fe-doped GaN Buffer on AlGaN/GaN HEMT Performance on GaN Substrate Using Side-gate Modulation International conference

    Maria Emma Villamin, Takaaki Kondo*, Naotaka Iwata

    2020年国際固体素子・材料コンファレンス(SSDM2020)  ( Online )   2020.9 

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    Presentation type:Oral presentation (general)  

    オーラル D-7-06

  • Side gate modulation of AlGaN/GaN HEMTs on GaN with C and Fe doped buffers International conference

    Maria Emma Villamin, Takaaki Kondo*, Naotaka Iwata

    第81回応用物理学会秋季学術講演会  ( Online )   2020.9  応用物理学会

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    Presentation type:Oral presentation (general)  

    オーラル 10p-Z04-6

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Grant-in-Aid for Scientific Research