• DocumentCode
    1051876
  • Title

    Word selection by integrated magnetic needles in the 107-bit THEMIS store

  • Author

    De Haan, Herman J M ; Lishman, David J. ; De Bruin, Anton A A G ; Goes, Wim P.

  • Author_Institution
    Philips Research Laboratories, Eindhoven, The Netherlands
  • Volume
    9
  • Issue
    1
  • fYear
    1973
  • fDate
    3/1/1973 12:00:00 AM
  • Firstpage
    39
  • Lastpage
    45
  • Abstract
    Word currents in the batch fabricated THEMIS store are supplied by magnetic selection needles closely integrated with the storage elements. The selection needle behaves like the well-known switch core. The word current generated is a function of many parameters and tolerances because of interactions between the storage elements and selection needles. This paper discusses these interactions in detail and describes the needle-stack construction which led to well-defined word currents. It also gives results of full- and half-selection current measurements on two 256-plane stacks.
  • Keywords
    Magnetic film memories; Coils; Copper; Etching; Lacquers; Magnetic separation; Needles; Production; Switches; Transformer cores; Wiring;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1973.1067555
  • Filename
    1067555
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1051876