Magnetic element with insulating veils and fabricating...

Details Magnetic element with insulating veils and fabricating... Magnetic element with insulating veils and fabricating...

2005-06-28

2005-06-28

Jolley, Kirsten (Department: 1762)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S313000, C360S125330, C029S603140, C029S603150, C029S603180, C427S130000, C427S131000

Reexamination Certificate

active

06912107

ABSTRACT:
An improved and novel device and fabrication method for a magnetic element, and more particularly a magnetic element (10) including a first electrode (14), a second electrode (18) and a spacer layer (16). The first electrode (14) and the second electrode (18) include ferromagnetic layers (26&28). A spacer layer (16) is located between the ferromagnetic layer (26) of the first electrode (14) and the ferromagnetic layer (28) of the second electrode (16) for permitting tunneling current in a direction generally perpendicular to the ferromagnetic layers (26&28). The device includes insulative veils (34) characterized as electrically isolating the first electrode (14) and the second electrode (18), the insulative veils (34) including non-magnetic and insulating dielectric properties. Additionally disclosed is a method of fabricating the magnetic element (10) with insulative veils (34) that have been transformed from having conductive properties to insulative properties through oxygen plasma ashing techniques.

REFERENCES:
patent: 6165803 (2000-12-01), Chen et al.
patent: 6238582 (2001-05-01), Williams et al.
patent: 6277762 (2001-08-01), Hwang

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