Planar and near planar magnetic bubble circuits

Details Planar and near planar magnetic bubble circuits Planar and near planar magnetic bubble circuits

1979-06-11

1981-07-21

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 19, 427127, G11C 1908

Patent

active

042801958

ABSTRACT:
A magnetic bubble circuit and process for the manufacture of same is disclosed in which a pattern of permalloy elements is overlaid on a substantially planar surface contiguous with the top surface of an underlying pattern of conducting elements. This structure is fabricated by including a metal or metal alloy film on the substrate and selectively anodizing the film to produce conducting and nonconducting regions having coplanar surfaces.

REFERENCES:
patent: 3699552 (1972-10-01), Defabritis et al.
patent: 3714633 (1973-01-01), Epstein et al.
patent: 3864671 (1975-02-01), Myer
patent: 3932827 (1976-01-01), Buhrer
"Fabrication of Large Bubble Circuits", Reekstin et al. IEEE Transactions on Magnetics, vol. Mag. 9, No. 3, Sept., 1973.

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