Magnetic bubble memory device

Details Magnetic bubble memory device Magnetic bubble memory device

1983-07-18

1986-08-19

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 15, G11C 1908

Patent

active

046073493

ABSTRACT:
A highly density magnetic bubble memory device has bubble propagation paths having different pattern periods. The distance between a propagation path having shorter period and a magnetic film for holding magnetic bubbles is made smaller than that between propagation path having longer period and the magnetic film. An insulating layer formed between the propagation path and the magnetic film through another insulating layer has a declining slope having an angle of 60.degree. or less, thereby ensuring steady propagation of the magnetic bubbles along the propagation path.

REFERENCES:
patent: 4104422 (1978-08-01), Sandfort
Journal of Applied Physics--vol. 50, No. 3; Mar. 1979, pp. 2225-2227.

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