MAGNETIC HEAD INCLUDING SIDE SHIELD LAYERS ON BOTH SIDES OF A MR ELEMENT
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Mar 29, 2011
filing date -
Mar 29, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A magnetic head that reads information of a magnetic recording medium is provided. The magnetic head according to one embodiment includes: an MR element, formed with multilayer films, of which an electrical resistance changes according to an external magnetic field; a first shield layer that is disposed on a lower side in an lamination direction of the MR element; a second shield layer that is disposed on an upper side in the lamination direction of the MR element, and that applies voltage to the MR element together with the first shield layer; and side shield layers that are disposed on both sides of the MR element in a truck width direction. The side shield layers include soft magnetic layers and hard magnetic layers magnetized in a predetermined direction.
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