Method to achieve low and stable ferromagnetic coupling field

Details Method to achieve low and stable ferromagnetic coupling field Method to achieve low and stable ferromagnetic coupling field

2007-07-17

2007-07-17

McDonald, Rodney G. (Department: 1753)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C204S192110, C427S130000

Reexamination Certificate

active

10693276

ABSTRACT:
A method for making a spin valve includes providing a substrate; depositing a first ferromagnetic layer having a first surface on the substrate; depositing a spacer layer having a second surface; depositing a second ferromagnetic layer, wherein the spacer layer is disposed between the first and second ferromagnetic layers; and exposing one or more of the first and second surfaces to an oxygen partial pressure, then decreasing the oxygen partial pressure before depositing a subsequent layer. One or more of the first and second surfaces may be exposed to an oxygen partial pressure of between about 1×10−7Torr and about 5×10−5Torr.

REFERENCES:
patent: 5408377 (1995-04-01), Gurney et al.
patent: 5862021 (1999-01-01), Deguchi et al.
patent: 5862022 (1999-01-01), Noguchi et al.
patent: 5871622 (1999-02-01), Pinarbasi
patent: 5986858 (1999-11-01), Sato et al.
patent: 6303218 (2001-10-01), Kamiguchi et al.
patent: 6567246 (2003-05-01), Sakakima et al.
patent: 10-41561 (1998-02-01), None
patent: WO00/65614 (2000-02-01), None
K. Kagawa, et al., “Effect of Oxygen Incorporation on Magnetoresistance in Co/Cu Multilayers,” J. Appl. Physics, vol. 75, No. 10, pp. 6540-6542, 1994.
W.F. Egelhoff, et al., “Oxygen as a Surfactant in the Growth of Giant Magnetoresistance Spin Valves,” J. Appl. Phys., vol. 82, No. 12, pp. 6142-6151, 1997.

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