Magnetic heads disk drives and methods with thicker read shield structures for reduced stray field sensitivity
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United States of America Patent
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Aug 24, 2010
Grant Date -
N/A
app pub date -
Apr 6, 2006
filing date -
Apr 11, 2005
priority date (Note) -
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Abstract
A head of a disk drive comprises a read element, a top read shield, a bottom read shield, a stray field shield, and an exchange decoupling layer. The read element allows for reading magnetic fields from a recording medium. The top read shield, the bottom read shield, and the stray field shield allow for at least partially shielding the read element from stray magnetic fields. The exchange decoupling layer allows for at least partially providing exchange decoupling of the stray field shield and the bottom read shield. The read element is located at least partially between the top read shield and the bottom read shield. The bottom read shield is located at least partially between the stray field shield and the top read shield, and the exchange decoupling layer is located at least partially between the stray field shield and the bottom read shield.
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