Magnetic bubble generator for bubble memory in hybrid technology

Details Magnetic bubble generator for bubble memory in hybrid technology Magnetic bubble generator for bubble memory in hybrid technology

1986-05-14

1988-01-19

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Generators

365 36, G11C 1908

Patent

active

047208147

ABSTRACT:
The bubble memory comprises a magnetic layer in which the magnetic bubble can move under the action of a rotary field, a deposited pattern formed from a high permeability magnetic material and separated from the magnetic layer by an electrical insulating layer, a U-shaped electric conductor placed between the magnetic layer and the deposited pattern and electrically insulated therefrom, the deposited pattern covering the base of the internal space defined by the electric conductor and thus defining a nucleation position. The generator also comprises an implanted pattern produced in a fraction of the thickness of the magnetic layer, the implanted pattern at least covering the nucleation position.

REFERENCES:
patent: 3967002 (1976-06-01), Almasi et al.
patent: 4086571 (1978-04-01), Bullock
patent: 4128895 (1978-12-01), Almasi et al.
patent: 4525807 (1985-06-01), Jouve
IEEE Transactions on Magnetics (Sep. 1973), vol. MAG-9, No. 3, pp. 289-293.
IEEE International Solid State Circuits Conference (Feb. 14, 1980), New York, pp. 112-113.

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