High-speed, compact magnetic bubble stretcher

Details High-speed, compact magnetic bubble stretcher High-speed, compact magnetic bubble stretcher

G - Physics

11

C

352/37.3

G11C 19/08 (2006.01)

Patent

CA 1222819

-15- ABSTRACT OF THE DISCLOSURE HIGH-SPEED, COMPACT MAGNETIC BUBBLE STRETCHER A magnetic bubble memory (of the type that has a magnetic film, a plurality of magnetic bubbles in the film, and an insulating layer over the film) includes an improved electromagnetic structure on the insulating layer for stretching the bubbles to aid in their detection; which structure is comprised of a plurality of elongated permalloy elements on the insulator and arranged in spaced apart rows with only one of the elements per row; each element has a pattern that is X-shaped which repeats along the element in the direction of elongation; the X in the pattern has two short legs and two long legs; and the pattern is repeated such that the short legs of one X join with the long legs of the next X.

457720

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