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Basic deposited integrated magnetic circuit element for fast computer circuitry

Reardon, B. C. and Humphrey, F. B. (1965) Basic deposited integrated magnetic circuit element for fast computer circuitry. IEEE Transactions on Magnetics, 1 (3). pp. 211-217. ISSN 0018-9464. doi:10.1109/TMAG.1965.1062944.

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A deposited configuration, consisting of a magnetic thin film and coupling loop, was studied with a view to the future development of integrated magnetic circuitry. A line charge model, predicting flux linkages of coupling loops to an accuracy of about one percent was established. The almost complete linkage of the film flux with a deposited loop, due to the very close coupling, was verified. A decrease of about 20 percent in film flux at both ends of the easy axis was noted for the experimental assemblies used. Circulating loop currents were shown to be the chief parasitic factor which modified the switching of the magnetic film. The change in switching time due to eddy currents was small when the loop conductor size was of the same order as the magnetic film. For resistive loop loading, the average field during switching is a good measure of the slowing due to the loading. The film-loop assembly has good potentialities as a circuit element, with good transmission of both read-out and control signals occurring in the loop. The field calibration for these control signals was shown to be the same for both bias and drive field applications.

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Additional Information:© 1965 IEEE. Manuscript received January 22, 1965; revised June 1, 1965.
Issue or Number:3
Record Number:CaltechAUTHORS:20170815-150022446
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Official Citation:B. Reardon and F. Humphrey, "Basic deposited integrated magnetic circuit element for fast computer circuitry," in IEEE Transactions on Magnetics, vol. 1, no. 3, pp. 211-217, Sep 1965. doi: 10.1109/TMAG.1965.1062944
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80434
Deposited On:15 Aug 2017 22:20
Last Modified:15 Nov 2021 19:35

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