Metal working – Method of mechanical manufacture – Electrical device making
Patent
1997-11-17
1999-07-13
Young, Lee W.
Metal working
Method of mechanical manufacture
Electrical device making
2960308, 2960309, 2960314, G11B 5127
Patent
active
059209798
ABSTRACT:
A low noise inductive magnetic head used for writing and reading magnetic signals onto and from a magnetic recording medium includes two magnetic poles P1, P2 that are formed on a substrate which define a transducing gap therebetween. Each of the poles P1, P2 includes an outer magnetic layer formed remotely from the gap and an inner magnetic layer formed adjacent to the gap. The inner and outer magnetic layers have magnetostrictions (.lambda..sub.s) of approximately equal but opposite values, such that each of the magnetic poles P1, P2 exhibits a net magnetostriction of zero or is biased within a predefined range, regardless of the individual magnetostriction values of its layers.
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Nepela Daniel A.
Sarhadi Siamak
Kassatly Samuel
King Robert
Read-Rite Corporation
Tugbong A. Dexter
Young Lee W.
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