Magnetic bubble memory

Details Magnetic bubble memory Magnetic bubble memory

G - Physics

11

C

352/37.2

G11C 11/14 (2006.01) G11C 19/08 (2006.01)

Patent

CA 1119721

B(BECK-126 MAGNETIC BUBBLE MEMORY Abstract of the Disclosure In a bubble memory of the type employing electrical current pulses to sequentially advance magnetic bubbles along preselected paths within a magnetic bubble layer, high speed operation is achieved through the use of two generally co-extensive conductive layers (25,26) overlying the magnetic bubble layer, the two conductive layers being spaced apart by an insulating film (27). Each layer includes a pattern of apertures (30, 31 FIG. 3) therethrough, corresponding apertures in the two layers being slightly off-set from one another. Various sequences of current pulses (e.g., 11 I2, I3, I4 - FIG. 5) are applied to the conductive layers for advancing the bubbles along propagation paths defined by the aperture patterns.

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