By Topic

IEEE Potentials

Issue 3 • Oct. 1990

Filter Results

Displaying Results 1 - 9 of 9
  • Microfabrication techniques and applications

    Publication Year: 1990, Page(s):13 - 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (513 KB)

    The impact of advances in integrated circuit fabrication techniques on other microtechnologies is examined. The key techniques, photolithography and etching, are discussed. Applications of these techniques to the fabrication of diffraction gratings, thin windows, and photoresist molds for electroplating are described.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • MOS materials

    Publication Year: 1990, Page(s):17 - 20
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (693 KB)

    The materials most commonly used to make a metal-oxide-semiconductor device, namely Si, SiO/sub 2/ and Al, are discussed, focusing on what makes them so useful. The characteristics of the materials are described, and the ways in which these characteristics are used, and if necessary modified are indicated.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Josephson

    Publication Year: 1990, Page(s):26 - 29
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (509 KB)

    The physical mechanism of superconductivity and the physical parameters of superconductors are briefly described. The limitations of digital semiconductors are identified. The operation of the Josephson junction is explained, and its use as a memory device is examined. Power requirements and packaging of Josephson devices are discussed.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The magical Fibonacci number

    Publication Year: 1990, Page(s):34 - 35
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (262 KB)

    Fibonacci numbers are explained, and some of the many manifestations of the Fibonacci series in nature are described. These range from the so-called golden spiral to the Penrose tiling patterns that describe the structure of quasicrystals.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Communicating over electric distribution lines

    Publication Year: 1990, Page(s):36 - 39
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (462 KB)

    Problems of remote control and metering by carrier transmission over the distribution feeders are considered. The choice of carrier frequencies by the author's Company for compromise between characteristics of noise (harmonics) and electrical length (standing waves) is explained. Modulation, filtering, and integrate-and-dump detection methods of elimination of harmonic effects are described, with ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parallel processing: an overview

    Publication Year: 1990, Page(s):40 - 42
    Cited by:  Papers (1)
    Request permission for commercial reuse | PDF file iconPDF (324 KB)
    Freely Available from IEEE
  • Spherical electric motors

    Publication Year: 1990, Page(s):47 - 48
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (341 KB)

    The history of spherical motors is traced, beginning with the initial research in the mid-1950s. Interest grew in the 1960s in their use in space, due to their light weight compared with that of conventional motors. In the 1970s, the spherical concept was applied to pumps where the impeller is of spherical shape so that no shaft seals are required. The 1980s saw still more activity, this time with... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The EE student's PC toolkit. III. Word processing

    Publication Year: 1990, Page(s):49 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (330 KB)

    For pt.II see ibid., vol.9, no.1, p.44 (Feb. 1990). This part discusses public domain and shareware application programs useful in electrical engineering coursework, focusing on software for word processing. The criteria used to select software for inclusion are described, and graphics compatibility is discussed. Two selected packages are described.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nikola Tesla: the man time forgot

    Publication Year: 1990, Page(s):53 - 54
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (286 KB)

    The life and career of Nikola Tesla are described. His development of the AC motor and his battle with Thomas Edison over the use of AC versus DC (Edison was a proponent of the latter) are recounted. Experiments in which Tesla was far ahead of his time are described.<> View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Potentials is the magazine dedicated to undergraduate and graduate students and young professionals.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Sachin Seth
Texas Instruments
sachin3006@gmail.com