Permalloy-first bubble switch

Details Permalloy-first bubble switch Permalloy-first bubble switch

1980-12-01

1982-07-20

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Plural interacting paths

365 39, G11C 1908

Patent

active

043409423

ABSTRACT:
A permalloy-first bubble switch has two curved propagation elements positioned on a layer of bubble domain supporting material. A curved conductor is superimposed on top of the propagation elements so that a current passing through the conductor element permits a bubble to be moved from one curved propagation element to the second curved propagation element.

REFERENCES:
patent: 4007447 (1977-02-01), Bobeck
patent: 4172758 (1979-11-01), Bailey et al.
patent: 4263661 (1981-04-01), Chen et al.
James L. Smith et al, "Dollar-Sign Transfer for Magnetic Bubbles" IEEE Transactions on Magnetics, vol. Mag-9, No. 3, Sep. 1973, pp. 285-289.
Reekstin et al, "Fabrication of 10.sup.4 Bit Permalloy-First Magnetic Bubble Circuits on Epitaxial Garnet Chips", J. Vac. Sci. Technol., vol. 10, No. 5, Sep./Oct. 1973, pp. 845-851.
"The Design, Fabrication and Test of 16K Bubble Memory Chips" IEEE Transactions on Magnetics, vol. Mag-11, No. 5, Sep. 1975, pp. 1157-1159.
B. J. Roman et al, "Effect of Conductor Crossings on Propagation Margins" IEEE Transactions on Magnetics, vol. Mag-16, No. 3, May 1980, pp. 489-497.

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