Magnetic head with soft magnetic shield and magnetic storage
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United States of America Patent
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Nov 11, 2008
Grant Date -
Jun 8, 2006
app pub date -
Dec 2, 2005
filing date -
Dec 3, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Embodiments of the invention avoid erasure of recorded data by concentrating stray fields on a magnetic head element. According to one embodiment, in a magnetic storage apparatus using a perpendicular recording medium with a soft magnetic under layer, a soft magnetic shield is provided so as to surround the upper parts and sides of magnetic head elements. A distance between the soft magnetic shield and the medium is shorter than that between the soft magnetic shield and the magnetic head element.
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