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Filtering by: Creator Post, Eric J. Remove constraint Creator: Post, Eric J. Advisor Wager, John F. Remove constraint Advisor: Wager, John F.

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  • Nontraditional amorphous oxide semiconductor thin-film transistor fabrication

    Creator:
    Sundholm, Eric Steven
    Abstract:
    Fabrication techniques and process integration considerations for amorphous oxide semiconductor (AOS) thin-film transistors (TFTs) constitute the central theme of this dissertation. Within this theme three primary areas of focus are pursued. The first focus involves formulating a general framework for assessing passivation. Avoiding formation of an undesirable backside accumulation layer...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Eric Steven Sundholm for

  • Amorphous oxide semiconductors in circuit applications

    Creator:
    McFarlane, Brian Ross
    Abstract:
    The focus of this thesis is the investigation of thin-film transistors (TFTs) based on amorphous oxide semiconductors (AOSs) in two circuit applications. To date, circuits implemented with AOS-based TFTs have been primarily enhancement-enhancement inverters, ring oscillators based on these inverters operating at peak frequencies up to ~400 kHz, and two-transistor...
    Resource Type:
    Masters Thesis
    Full Text:
    of the research group. Notably, I would like to thank Hai Chiang, David Hong, Rick Presley, and Eric

  • Low-cost deposition methods for transparent thin-film transistors

    Creator:
    Norris, Benjamin J.
    Abstract:
    The objective of this dissertation is to introduce low-cost processing methods for the fabrication of ZnO transparent thin-film transistors (TTFTs). A novel method for depositing ZnO body layers via spin-coating of a zinc nitrate-based spin solution is presented. The processing conditions of spin-coated ZnO are optimized to produce continuous and...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Benjamin J. Norris for the degree

  • Improved stability in ACTFEL devices

    Creator:
    Khormaei, Iranpour
    Abstract:
    The stability of ZnS:Mn AC thin film Electroluminescence (ACEFEL) devices as demonstrated by the brightness-voltage (BV) characteristics is discussed. Two procedures for improvement of the stability are demonstrated. The first method is the addition of a CaS buffer layer to one or both interfaces of the ZnS active phosphor layer....
    Resource Type:
    Masters Thesis
    Full Text:
    also like to thank Dr. John R. Arthur, for numerous discussions throughout this work, and Dr. David J

  • ACTFEL phosphor deposition by RF sputtering

    Creator:
    Ang, Wie Ming
    Resource Type:
    Masters Thesis
    Full Text:
    thanks to Professors T. Plant, J. Nibbler, and R. Nielsen for serv­ ing on my committee. Special thanks

  • Development of Cu-based Thin Films for Optoelectronic Applications

    Creator:
    Angelos, Gregory S.
    Abstract:
    CIGS and CdTe based commercial thin-film solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . 47 3.1.5 Post-deposition anneal . . . . . . . . . . . . . . . . . . . . . 49 3.2 Thin film

  • Hot carrier degradation of sub-micron n-channel MOSFETs subject to static stress

    Creator:
    Aminzadeh, Payman G.
    Abstract:
    Hot carrier effects in sub-micron lightly doped drain (LDD) n-channel MOSFETs under static (DC) stress are studied in order to establish the degradation mechanisms of such devices. Degradation is monitored as a function of time at various gate voltages. Under accelerated aging conditions (i.e. large drain voltages) the gate voltage...
    Resource Type:
    Masters Thesis
    Full Text:
    , and J. A. Coakley for serving on my committee. I wish to extend my special thanks to Dr. B. Sabi, Dr

  • Amorphous metal thin films as a platform for solution processing

    Creator:
    Landau, Nicholas P.
    Abstract:
    The research presented herein represents an effort to combine the ultra-smooth surface of an amorphous metal thin film (AMTF) with a solution-processed dielectric synthesized via prompt inorganic condensation (PIC). Analysis of dielectric film quality is carried out via electrical measurements of metal-insulator-metal (MIM) diodes. Anneals at 500 and 700 °C...
    Resource Type:
    Masters Thesis
    Full Text:
    current density versus electric field (J-ξ) data is presented as an efficient tool to detect the

  • Electronic Conduction Mechanisms in Insulators

    Creator:
    Chiang, Tsung-Han
    Abstract:
    The research presented herein focuses on electrical assessment of oxide thin films as insulators. The current density-electric field (J-E) characteristics of four insulators of dramatically different electrical quality are assessed in terms of their operative electronic conduction mechanisms. Conduction in the two high-quality insulators is dominated by Ohmic conduction and...
    Resource Type:
    Dissertation
    Full Text:
    −electric field (J − ξ) characteristics of four insula- tors of dramatically different electrical quality

  • Fabrication process assessment and negative bias illumination stress study of IGZO and ZTO TFTs

    Creator:
    Hoshino, Ken
    Abstract:
    Indium-gallium-zinc oxide (IGZO) and zinc-tin oxide (ZTO) are investigated for thin-film transistor (TFT) applications. Negative bias illumination stress (NBIS) is employed for electrical stability assessment. Unpassivated IGZO and ZTO TFTs suffer from severe NBIS instabilities. Zinc-tin-silicon oxide is found to be an effective passivation layer for IGZO and ZTO TFTs,...
    Resource Type:
    Dissertation
    Full Text:
    found to be effective for improving the performance of IGZO or ZTO TFTs or for reducing the post