Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-04-17
2007-04-17
Evans, Jefferson (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C360S324110
Reexamination Certificate
active
10882179
ABSTRACT:
A magnetoresistance effect element is manufactured in the steps in which a first ferromagnetic layer is formed on a substrate, the first ferromagnetic layer is patterned to form a pinned layer, in the shape of a strip, having both end portions to which electrode pads are formed, the pinned layer is etched, for example, through ion milling, so as to form at least one nano-contact portion, an insulating layer is formed by embedding an insulating material into the etched pinned layer around the nano-contact portion, a second ferromagnetic layer is formed so as to contact at least the nano-contact portion, and this second ferromagnetic layer is patterned to form a free layer, in shape of strip, having both end portions to which electrode pads are formed.
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Sato Isamu
Sbiaa Rachid
Evans Jefferson
Kenyon & Kenyon LLP
TDK Corporation
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