Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-01-02
2007-01-02
Klimowicz, William J (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S324200
Reexamination Certificate
active
11227143
ABSTRACT:
A magneto-resistance effect element is provided and includes a lower conductive layer, a pattern provided thereon and made up of a fixed layer having a pinned orientation of magnetization, a first non-magnetic layer provided on the fixed layer, a free layer provided on the non-magnetic layer and having an orientation of magnetization varied by a magnetic field applied thereto, a first magnetic layer provided on the free layer; and a vertical bias layer, provided on the first magnetic layer, for applying a magnetic field to the first magnetic layer, and a sense current for detecting a change in electrical resistance of the non-magnetic layer flows substantially in perpendicular relation to the non-magnetic layer. The pattern is buried in an insulation layer with the vertical bias layer of the pattern being exposed on an upper surface of the insulation layer.
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Fujikata Junichi
Hayashi Kazuhiko
Ishi Tsutomu
Ishihara Kunihiko
Ishiwata Nobuyuki
Klimowicz William J
NEC Corporation
Whitham Curtis Christofferson & Cook PC
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