Write transducer with symmetric yoke structure
AssigneeInternational Business Machines Corporation
InventorsRobert Fontana, Robert Biskeborn
Life of this patent
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Abstract
An apparatus, according to one embodiment, includes a write transducer having: a bottom yoke, a top yoke, a nonmagnetic write gap positioned between the top and bottom yokes, a bottom pole extending from the bottom yoke toward the write gap, and a top pole extending from the top yoke toward the write gap. A width of a media facing side of the bottom pole is about the same as a width of a media facing side of the top pole. The media facing side of the bottom pole is aligned with the media facing side of the top pole along a thickness direction. A method, according to one embodiment, includes performing bidirectional writing to a magnetic recording tape using a write transducer as described above.
Claims20
An apparatus, comprising:
- a write transducer having:
- a bottom yoke;
- a top yoke;
- a nonmagnetic write gap positioned between the top and bottom yokes;
- a bottom pole extending from the bottom yoke toward the write gap;
- and
- a top pole extending from the top yoke toward the write gap,
- wherein a width of a media facing side of the bottom pole is about the same as a width of a media facing side of the top pole,
- wherein the media facing side of the bottom pole is aligned with the media facing side of the top pole along a thickness direction,
- wherein a width of an entire linear portion of a media facing side of the top yoke extending parallel to the media facing sides of the top and bottom poles is greater than the respective widths of the media facing sides of the top and bottom poles,
- wherein a peripheral shape of the entire top yoke is rectangular.
A method, comprising:
- performing bidirectional writing to a magnetic recording tape using a write transducer having:
- a bottom yoke;
- a top yoke formed above the bottom yoke;
- a nonmagnetic write gap positioned between the top and bottom yokes;
- a bottom pole extending from the bottom yoke toward the write gap;
- and
- a top pole extending from the top yoke toward the write gap,
- wherein a width of a tape facing side of the bottom pole is about the same as a width of a tape facing side of the top pole,
- wherein the tape facing side of the bottom pole is aligned with the tape facing side of the top pole along a thickness direction,
- wherein a width of an entire linear portion of a media facing side of the top yoke extending parallel to the media facing sides of the top and bottom poles is greater than the widths of the media facing sides of the top and bottom poles,
- wherein the width of the linear portion of the media facing side of the bottom yoke is about the same as the width of an entire linear portion of a media facing side of the top yoke.
An apparatus, comprising:
- a write transducer having:
- a bottom yoke;
- a top yoke;
- a nonmagnetic write gap positioned between the top and bottom yokes;
- a bottom pole extending from the bottom yoke toward the write gap;
- and
- a top pole extending from the top yoke toward the write gap,
- wherein a width of a media facing side of the bottom pole is about the same as a width of a media facing side of the top pole,
- wherein the media facing side of the bottom pole is aligned with the media facing side of the top pole along a thickness direction,
- wherein a width of a linear portion of a media facing side of the top yoke extending parallel to the media facing sides of the top and bottom poles is greater than the widths of the media facing sides of the top and bottom poles,
- wherein a peripheral shape of the entire top yoke is rectangular,
- wherein the media facing side of the top yoke is coplanar with the media facing sides of the top and bottom poles.
Dependencies are inferred from the claim text.