Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer
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United States of America Patent
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Aug 9, 2011
Grant Date -
Oct 9, 2008
app pub date -
Apr 6, 2007
filing date -
Apr 6, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A magnetic head incorporates: a medium facing surface; a coil; a pole layer; first and second shields disposed to sandwich the pole layer therebetween; a first gap layer disposed between the first shield and the pole layer; a second gap layer disposed between the second shield and the pole layer; and a substrate. The first shield is located closer to the substrate than the second shield. The first shield has a first layer and a second layer disposed between the first layer and the first gap layer.
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