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US 2023/0154488 A1Published application
Magnetic write head with flux blockade structure
AssigneeInternational Business Machines Corporation
InventorsHugo E. Rothuizen, Icko E.T. Iben, Robert Fontana, Mark Alfred Lantz
Life of this patent
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Abstract
An apparatus such as a device having a writer for magnetic media has a trailing pole piece having a portion adjacent a write gap, the portion having a throat height (h1) of between about 100 and about 800 nm, and an aspect ratio of thickness/throat height (t1/h1) in a range of 0.5 and 2.
Claims20
An apparatus for performing operations on a magnetic recording tape, the apparatus comprising:
- a magnetic head having an array of writers, each writer having a trailing pole piece having a portion adjacent a write gap,
- the portion having a throat height (h1) of between about 100 and about 800 nm, and an aspect ratio of thickness/throat height (t1/h1) in a range of 0.5 and 2.
An apparatus for performing operations on a magnetic recording tape, the apparatus comprising:
- a magnetic head having an array of writers, each writer having a trailing pole piece having a portion adjacent a write gap,
- the portion having an aspect ratio of thickness/throat height (t1/h1) in a range of 0.5 and 2,
- wherein the trailing pole piece includes a flare-out extending in a cross-track direction, lower surfaces of the flare-out being oriented at an angle (a1) from the cross-track direction, the angle (a1) being in a range of from 0 to about 60 degrees.
Dependencies are inferred from the claim text.