Field access method for bubble memories

Details Field access method for bubble memories Field access method for bubble memories

G - Physics

11

C

352/37.2

G11C 11/14 (2006.01) G11C 19/08 (2006.01)

Patent

CA 1100634

FIELD ACCESS METHOD FOR BUBBLE MEMORIES Abstract of the Disclosure Field access system for use in propagation of bubbles is disclosed. The field access system combines discrete drive elements with a continuous drive film. An example is a Permalloy overlay consisting of a continuous drive film with protruding T & I bars which function as drive elements. This overlay structure is spaced over a suitable bubble material. The drive film is in direct contact with the T & I drive elements so that exchange coupling exists between the drive film and the drive elements. Use of a continuous drive film allows for control of the drive elements by a closed flux magnetic circuit having low power consumption.

278021

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