Metal working – Method of mechanical manufacture – Electrical device making
Patent
1998-03-03
2000-05-30
Young, Lee
Metal working
Method of mechanical manufacture
Electrical device making
2960314, 2960315, 2960318, 360113, 427130, G11B 5127, G11B 5187
Patent
active
060677031
ABSTRACT:
A combined thin film magnetic head includes a magnetoresistive reproducing head part and an inductive recording head part. The magnetoresistive reproducing head part is defined between a lower shielding layer and a merged core layer. The inductive recording head part is defined between the merged core layer and an upper core layer and is configured to specify a track width for the recording head part by providing the upper core layer in a localized region W.sub.2. A method of fabricating the magnetic head includes steps of forming an etching-protective layer on a gap layer so as to provide an exposed region W.sub.1 left uncovered which is larger than the localized region W.sub.2 in which the upper core layer is to be finally confined, depositing the upper core layer over the entire surfaces thereof, and etching the upper core layer so as to finally confine the etched upper core layer in the localized region W.sub.2. In a preliminary process, the merged core layer is formed to have an elevated part at a location corresponding to the localized region, and an insulating layer is deposited around the elevated part of the merged core layer, before the gap layer is deposited entirely over the elevated part and the localized region.
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Sano Jun-ichi
Takahashi Seiichirou
Tatezono Fumio
Fasse W. F.
Fasse W. G.
Sanyo Electric Co,. Ltd.
Tugbang A. Dexter
Young Lee
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