Method and system for providing a transducer having dual, ABS recessed auxiliary poles on opposite sides of a main pole with non-magnetic spacer adjoining back portion of main pole and positioned between auxiliary poles
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United States of America Patent
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Mar 26, 2013
Grant Date -
N/A
app pub date -
Mar 23, 2011
filing date -
Mar 23, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system for providing a magnetic recording head is described. The magnetic recording head has an ABS configured to reside in proximity to a media during use. The magnetic recording head includes a main pole, first and second auxiliary poles, a backgap, a nonmagnetic spacer, and at least one coil. The main pole includes a pole tip occupying a portion of the ABS and a back edge distal from the ABS. Each auxiliary pole has a front recessed from the ABS and a back portion. A portion of the main pole distal from the ABS resides between the auxiliary poles. The auxiliary poles are magnetically coupled with the main pole. The backgap magnetically couples the back portions of the auxiliary poles. The nonmagnetic spacer adjoins the back edge of the main pole and is between the auxiliary poles. The coil(s) energize the main pole.
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