Magnetic devices and method of manufacture

Details Magnetic devices and method of manufacture Magnetic devices and method of manufacture

1980-06-26

1982-11-23

Moffitt, James W.

Static information storage and retrieval

Magnetic bubbles

Guide structure

365 32, G11C 1908

Patent

active

043608930

ABSTRACT:
Magnetic devices exemplified by bubble devices depend upon functional magnetic layers initially produced by epitaxy and reduced to effectively thinned surface layers by ion implantation. Implantation is at well-defined energy spectral levels which minimize effect on surface layers and which predominantly affect a "buried layer". As a result, such affected layer acts as a boundary layer of a functional layer which is spaced away from an interface between a substrate and a deposited layer.
Commercial significance is primarily concerned with high bit density devices in which effectively thinned regions are less than 3 micrometers in thickness.

REFERENCES:
patent: 3790405 (1974-02-01), Levinstein
patent: 3792452 (1974-02-01), Dixon et al.
patent: 3836898 (1974-09-01), Bobeck et al.
patent: 4001793 (1977-01-01), Henry et al.
Proceedings of the IEEE-vol. 63, No. 8, Aug. 1975, pp. 1176-1195.
Journal of Applied Physics-vol. 44, No. 10; Oct. 1973, pp. 4753-4757.
G. Dearnaley et al., "Ion Implantation", North-Holland Publishing Company 1973.

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