Magnetic memory device having yoke layer

Details Magnetic memory device having yoke layer Magnetic memory device having yoke layer

2005-04-12

2005-04-12

Nelms, David (Department: 2818)

Static information storage and retrieval

Systems using particular element

Magnetoresistive

C365S158000, C365S171000, C365S173000

Reexamination Certificate

active

06879515

ABSTRACT:
A magnetic memory device includes first wiring which runs in the first direction, second wiring which runs in the second direction, a magneto-resistance element which is arranged at an intersection between the first and second wirings, a first yoke main body which covers at least either of the lower surface and two side surfaces of the first wring, a second yoke main body which covers at least either of the upper surface and two side surfaces of the second wiring, first and second yoke tips which are arranged on two sides of the magneto-resistance element in the first direction at an interval from the magneto-resistance element, and third and fourth yoke tips which are arranged on two sides of the magneto-resistance element in the second direction at an interval from the magneto-resistance element.

REFERENCES:
patent: 5940319 (1999-08-01), Durlam et al.
patent: 6165607 (2000-12-01), Yamanobe et al.
patent: 6201259 (2001-03-01), Sato et al.
patent: 6548849 (2003-04-01), Pan et al.

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