Thin film magnetic storage device

Details Thin film magnetic storage device Thin film magnetic storage device

1974-09-05

1976-06-08

Moffitt, James W.

Communications: electrical

Digital comparator systems

340174M, 340174SR, 340174TF, G11C 1908

Patent

active

039626903

ABSTRACT:
A thin film magnetic storage device consisting of a flat support to which a ferromagnetic layer which areas of different coercive force is applied, the low coercive force areas being surrounded by high coercive force areas, and further consisting of electric conductors extending in planes parallel with the support and used to produce the magnetic fields required for the propagation of magnetic domains in the low coercive force areas. The low coercive force areas are provided in the shape of strip-like channels, and the electric conductors are arranged in two separate planes such that they intersect the channels at right angles and that the conductors of one plane, at points of intersecton with the channels are situated above the gaps between the conductors of the second plane, and that the width of the conductors at points of intersecton with the channels is at least as great as the channel width. Thin film magnetic storage devices having this structure are simpler and cheaper to manufacture and are characterized by higher noise immunity and a low power requirement.

REFERENCES:
patent: 3068453 (1962-12-01), Broadbent
patent: 3241126 (1966-03-01), Snyder
patent: 3292161 (1966-12-01), Broadbent
patent: 3739358 (1973-06-01), Battarel

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