Current perpendicular to the planes (CPP) sensor with a...

Details Current perpendicular to the planes (CPP) sensor with a... Current perpendicular to the planes (CPP) sensor with a...

2006-05-02

2006-05-02

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07038890

ABSTRACT:
A magnetic read head has a current perpendicular to the planes (CPP) sensor with a top cap layer that is ruthenium (Ru) or rhodium (Rh) or a top cap layer structure which includes a first layer of tantulum (Ta) only, a second layer of ruthenium (Ru), rhodium (Rh) or gold (Au) with the first layer being located between a spacer layer and the second layer.

REFERENCES:
patent: 6153320 (2000-11-01), Parkin
patent: 6268985 (2001-07-01), Pinarbasi
patent: 2004/0001976 (2004-01-01), Saito
patent: 2000-228003 (2000-08-01), None
patent: 2003-60262 (2003-02-01), None
“Advanced Spin-Valve GMR Head”,FUJITSI Sci. Tech. J., 37, 2, p. 174-182, Dec. 2001, Kanai et al.
“CPP Operational Mode of GMR Head”,FUJITSI Sci. Tech. J., 37, 2, p. 192-200, Dec. 2001, Nagasaka et al.
“Spin Valve Read Heads for Magnetic Recording”, Carnegie Mellon Materials Science and Engineering Seminar, Sep. 2001, Lee.

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