Conductor driven field access magnetic bubble memory...

Details Conductor driven field access magnetic bubble memory... Conductor driven field access magnetic bubble memory...

G - Physics

11

C

352/37.2

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

Patent

CA 1108756

Abstract of the Disclosure In a magnetic bubble memory device, an improvement to the structure for providing an in-plane rotational magnetic field to advance bubbles through some appropriate, staged structural form of permalloy elements is a conductor overlay positioned so that the permalloy elements are generally oriented normally to current flow in the conductors. The conductor overlay may consist of two orthogonal groups of parallel wires or a single grid or mesh of wires with four electrical connections, one on each of four edges. The conductor overlay may be driven to produce an in-plane rotating magnetic field and the magnetic bubbles travel to or follow the induced poles in the permalloy elements just as if conventionally driven.

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