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Filtering by: Creator Wilson%2C James B. Remove constraint Creator: Wilson%2C James B. Advisor Looney, James C. Remove constraint Advisor: Looney, James C.

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  • Transmitter power requirements of optical and radio communication systems

    Creator:
    Cordy, Clifford B., Jr.
    Abstract:
    The recent development of the laser has made possible communications with a beam of coherent light. Since coherent light offers great advantages over radio in the areas of beam directivity and information capacity, optical communication systems have been proposed for many uses. The first section of this thesis gives a...
    Resource Type:
    Masters Thesis
    Full Text:
    communication systems AN ABSTRACT OF THE THESIS OF Clifford B. Cordy Jr.for the M.S. in Electrical (Name

  • Diffusion of boron and phosphorus in silicon

    Creator:
    Ou, Teh Ming
    Abstract:
    This thesis presents some experimental results for producing controlled PN and NPN diffused structures in silicon by varying the strength of the diffusion sources. Boron diffusions were carried out in a N₂ atmosphere at 1200°C with 10%, 20%, 30% and 40% B₂0₃ in silicic acid as sources. Phosphorus diffusions were...
    Resource Type:
    Masters Thesis
    Full Text:
    much faster than for oxides girown 29 30000 20000 1 000 9 B 7 6 5 4 3 2 oc erou 2c ero, o

  • Space-charge-limited currents in silicon using gold contacts

    Creator:
    Ede, Alan Winthrop
    Abstract:
    The theoretical characteristics of space-charge-limited currents in solids are reviewed, and a survey of suitable dielectric materials and experimental space-charge-limited devices is presented. The properties of the gold-silicon contact as used in space-charge-limited devices were experimentally investigated. It was found that the observed characteristics could be explained on the basis...
    Resource Type:
    Dissertation
    Full Text:
    Contacts Redacted for privacy Abstract approved: 1 James C. Looney Major professor The theoretical

  • Variable-width pulse generation using avalanche transistors

    Creator:
    Magnuson, Waldo George
    Abstract:
    The extremely fast ionization process in semiconductors offers a means of generating pulses that have sub -nanosecond rise times and high peak powers. There are several important applications of these pulses which require the duration of the generated pulse to be variable. This thesis investigates three methods of producing variable...
    Resource Type:
    Masters Thesis
    Full Text:
    increased the voltage drops CBO to LV . CEO Figure 2c shows the current -voltage plot when the base

  • Circuit characterization for efficient computer analysis

    Creator:
    Magnuson, Waldo George
    Abstract:
    Analysis, coupled with an experimental investigation, is an important step in the design process of electronic circuits. Fortunately, with the development of computer programs to perform general network analysis, the job of analyzing relatively complex networks is not as formidable as it once was. This investigation develops guidelines for efficiently...
    Resource Type:
    Dissertation
    Full Text:
    . The factors ' a r e : ( 1 ) T h e n u m b e r o f n o d e s t h e n e t w o r k

  • Field-effect transistor noise at low temperatures

    Creator:
    Spaulding, Richard Alan
    Abstract:
    Low temperature noise measurements on junction field-effect transistors tend to substantiate a theory of low frequency field-effect transistor noise based on the presence of generation centers in the gate-channel depletion region. Measurements of device noise voltage versus temperature reveal pronounced maxima and minima over the temperature range of 300° K...
    Resource Type:
    Masters Thesis
    Full Text:
    LOW TEMPERATURES Abstract approved: Redacted for privacy Pr;o-fessor James C Looney Low temperature

  • A MOSFET integrated circuit shift register

    Creator:
    Chen, David Wei
    Abstract:
    This paper is concerned with the design of a 21-bit metal-oxide-semiconductor field-effect transistor (MOSFET) integrated circuit static shift register. This circuit consists of three separate 1, 4, and 16-bit static shift registers constructed on a single monolithic chip, each with independent input and output terminals. Type D flip-flops are used...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENT I wish to extend my sincere appreciation to Professor James C. Looney, major professor, and Mr

  • An integrated MOS voltage-controlled low frequency oscillator

    Creator:
    Araghi, Mehdi Najm
    Abstract:
    In this work the use of linear MOS integrated circuits in the design of a phase-shift oscillator is presented. By multiplying the capacitors of the RC feedback network through the use of the Miller effect, large effective capacitance values are obtained which enable the low frequency operation of the oscillator....
    Resource Type:
    Masters Thesis
    Full Text:
    FREQUENCY OSCILLATOR Redacted for Privacy Abstract approved: James C. Looney In this work the use of

  • Compatible field-effect and bipolar transistors

    Creator:
    Cheung, David Kin-Poon
    Abstract:
    Four methods for the simultaneous fabrication of field-effect and bipolar transistors have been investigated. The basic process involves obtaining two different junction depths by a single diffusion. This was accomplished by the techniques of (1) partial masking, (2) two depositions, (3) etched channels, and (4) oxide depletion. The first three...
    Resource Type:
    Masters Thesis
    Full Text:
    Transistors Obtained from (A) Partial-masking, (B) Two - deposition, (C) Etched- channel, (D) Oxide

  • Percussion welding force, temperature and time relationships for welding 6061-T6 aluminum

    Creator:
    Eggers, Johannes Lyle
    Abstract:
    The force, temperature, and time relationships were investigated by using oscilloscope measurement techniques. Force was measured using a strain gage and the dynamic response recorded with a polaroid oscilloscope camera. Temperature was measured with a tungsten-rhenium thermocouple and recorded in the same manner. Residual stress measurements were made to determine...
    Resource Type:
    Masters Thesis
    Full Text:
    , Oregon. Assistant Professor of Electrical Engineering, James Chester Looney, (major professor) provided