Method of manufacturing a thin film magnetic head
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United States of America Patent
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Dec 30, 2003
Grant Date -
Feb 7, 2002
app pub date -
Sep 17, 2001
filing date -
Aug 28, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
When manufacturing a thin film magnetic head, a first magnetic pole and a second magnetic pole are magnetically coupled and face each other in a recording-medium-facing surface. A gap layer is in between the first and second magnetic pole. A thin film coil for generating magnetic flux is also included. A first magnetic layer is formed. A first magnetic pole is then formed on the first magnetic layer so as to be magnetically coupled to part of the first magnetic layer. A first insulating layer is formed with an inorganic material extendedly from a surface of the first magnetic pole opposite to the recording-medium-facing surface to a top surface of the first magnetic layer. The gap layer is formed on the first magnetic pole. Then the second magnetic pole is formed on the gap layer longer than the first magnetic pole. The second magnetic layer is formed so as to be magnetically coupled to part of the second magnetic pole.
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