Magnetic bubble device

Details Magnetic bubble device Magnetic bubble device

1981-03-23

1983-06-07

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Conductor propagation

365 57, G11C 1908

Patent

active

043874436

ABSTRACT:
A dual-conductor type current-access magnetic bubble device comprises apertured conductors on which apertured magnetic sheets having the same configuration as the corresponding conductors are disposed, whereby magnetic poles are induced on each aperture of the magnetic sheets by the in-plane magnetic field generated by the current applied to the corresponding conductors to reduce the driving current required for bubble propagation, while stable regions are formed in the substrate by the magnetic poles induced by the bubbles at the boundaries of the apertures of the magnetic sheets at the time of service interruption. The device is further provided with a magnetic rail having side walls on which magnetic poles are induced by the stray flux of the bubbles in the substrate, thereby to have stable bubble-rest regions formed in the substrate at the time of service interruption by the magnetic poles induced on the walls.

REFERENCES:
patent: 3893089 (1975-07-01), Almasi
patent: 4187555 (1980-02-01), Bobeck
patent: 4314358 (1982-02-01), Bobeck

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