Kelson Chabak

Air Force Research Laboratory

  • Self-Aligned Refractory Metal Gate Scaling in β-Ga2O3 MOSFETs

    Kelson Chabak, Air Force Research Laboratory
    Kyle Liddy, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Andrew Green, Air Force Research Laboratory
    Thaddeus Asel, Air Force Research Laboratory, Wright Patterson AFB, OH, USA
    Shin Mou, Air Force Research Laboratory, Wright Patterson AFB, OH
    Kevin Leedy, AFRL
    Donald Dorsey, Air Force Research Laboratory Materials and Manufacturing Directorate

    This work characterizes the effects of gate-length (LG) scaling in a self-aligned gate (SAG) β-Ga2O3 MOSFET process. Additional performance gains are expected by extending the SAG process from large LG to sub-micrometer dimensions.  This data incorporates LG scaling down to 200 nm to improve device performance in Ga2O3 SAG MOSFETs using a stepper lithography process to define sub-micron gate lengths.

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  • 14.4 Device Development of Gallium Oxide MOSFETs Grown by MOVPE on Native Substrates for High-Voltage Applications

    Neil Moser A., Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    Kelson Chabak, Air Force Research Laboratory
    Andrew Green, Air Force Research Laboratory
    Dennis Walker, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Stephen Tetlak, AFRL
    Eric Heller, AFRL
    Antonio Crespo, AFRL
    Robert Fitch, AFRL
    Jonathan McCandless, AFRL
    Kevin Leedy, AFRL
    Michele Baldini, Leibniz-Institut für Kristallzüchtung
    Guenter Wagner, Leibniz-Institut für Kristallzüchtung
    Glen Via, AFRL
    John Blevins, Air Force Research Laboratory (AFRL), Wright-Patterson AFB, OH
    Gregg Jessen, AFRL
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  • 3.1 Demonstration of X-band T/R MMIC using AFRL AlGaN/GaN MMIC Process

    James Gillespie, Air Force Research Laboratory
    Kelson Chabak, Air Force Research Laboratory
    Antonio Crespo, AFRL
    Robert Fitch, AFRL
    Darren Ferwalt, Cobham Advanced Electronic Systems
    David Frey, Cobham Advanced Electronic Systems
    Jeremy Gassmann, Cobham Advanced Electronic Systems
    Mark Walker, Cobham Advanced Electronic Solutions
    Ryan Gilbert, Wyle Laboratories
    Dennis Walker Jr, Air Force Research Laboatory, Sensors Directorate
    Glen Via, AFRL
    A.J. Green
    K.D. Leedy
    R.K. Mongia
    B.S. Poling
    K.A. Sutherlin
    S.E. Tetlak
    J.P. Theimer
    G.H. Jessen
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  • May 11, 2022 // 11:40am

    8.3 Device Figure of Merit Performance of Scaled Gamma-Gate β-Ga2O3 MOSFETs

    Kyle Liddy, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Ahmad Islam, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Jeremiah Williams, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Dennis Walker, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Neil Moser A., Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    Kelson Chabak, Air Force Research Laboratory
    Andrew Green, Air Force Research Laboratory
    Daniel Dryden, KBR, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    N. Sepelak, KBR, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA

    Abstract

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  • May 11, 2022 // 2:40pm

    10.3 Optimization of GaN RF Switch Device Performance using AFRL GaN140 MMIC Process

    Gary Hughes, Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH
    E. Werner, KBR, Wright-Patterson AFB
    Neil Moser A., Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    Dennis E. Walker Jr., Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    Andrew J. Green, Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    Ahmad Islam, Air Force Research Laboratory Sensors Directorate, WPAFB, OH, USA
    Kelson Chabak, Air Force Research Laboratory
    Michael Schuette, Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,
    John L. Ebel, Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, OH,

    Abstract

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  • 3.5.2021 LOL 1000 Liftoff Resist as an Antireflective Coating for MMIC Electroplating

    Elizabeth Werner, KBR
    Daniel Brooks, Air Force Research Laboratory
    Kyle Liddy, Air Force Research Laboratory
    Robert Fitch Jr., Air Force Research Laboratory
    James Gillespie, Air Force Research Laboratory
    Dennis Walker Jr., Air Force Research Laboratory
    Antonio Crespo, Air Force Research Laboratory
    Daniel M. Dryden, KBR
    Andrew Green, Air Force Research Laboratory
    Kelson Chabak, Air Force Research Laboratory
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