Shift register for magnetic domain propagation memory

Details Shift register for magnetic domain propagation memory Shift register for magnetic domain propagation memory

1980-10-29

1983-12-06

Moffitt, James W.

Static information storage and retrieval

Magnetic shift registers

Thin film

365133, G11C 1908

Patent

active

044197420

ABSTRACT:
The register comprises a soft magnetic layer in which is formed the domain propagation channel, a hard magnetic layer and a domain shift conductor. The propagation channel comprises a writing box, a reading box, narrow domain storage zones, widened domain growth boxes, a domain increasing zone, upstream the reading box, which includes intermediate domain increasing boxes, which have a large surface with respect to that of the other growth boxes. Each increasing box comprises lateral shoulders and is not covered by the shift conductor. A coil or a solenoid creates at the level of the increasing zone and of the reading box, a pulsating external magnetic field.

REFERENCES:
patent: 3997884 (1976-12-01), Battarel et al.
patent: 4124901 (1978-11-01), Battarel
patent: 4250566 (1981-02-01), Battarel

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