Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1995-03-27
1996-02-13
Wolff, John H.
Dynamic magnetic information storage or retrieval
Head
Hall effect
360119, G11B 539, G11B 523
Patent
active
054916062
ABSTRACT:
Providing a magnetic head with a yoke and a gap structure coupled to a substrate that is positioned above a magnetic medium. The gap structure includes one or more lips, a first and a second ferromagnetic pole, and a magnetoresistive element (MRE). The magnetoresistive element is removed from the air-bearing surface of the magnetic head. For the embodiment with two lips, the two lips define a head gap. Each ferromagnetic pole is connected to one lip. The two poles are separated by a distance greater than the length of the gap, and each pole has a thickness that is greater than the thickness of each lip. The MRE is substantially coupled magnetically, but not electrically to the two poles at a location where the two poles are separated by a distance greater than the length of the gap.
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Bhattacharyya Manoj K.
Hesterman Victor W.
Renner Craig A.
Wolff John H.
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