Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2006-01-31
2006-01-31
Cao, Allen (Department: 2652)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
06992870
ABSTRACT:
An upper metal layer made of a non-magnetic metal is formed as a protection layer on the top surface of a free layer positioned topmost of a magneto-resistive layer constituting a TMR device. An upper electrode, serving additionally as an upper magnetic shield layer, is electrically connected to the free layer through an underlying layer of the upper electrode, and the upper metal layer. The thickness of the upper metal layer is chosen to be 10 nm or more.
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Kagami Takeo
Saruki Shunji
Sato Kazuki
Uesugi Takumi
Cao Allen
Oliff & Berridg,e PLC
TDK Corporation
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