Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1997-08-26
1998-08-04
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Head
Hall effect
G11B 539
Patent
active
057903522
ABSTRACT:
An MR head includes an MR film electrically connected to two lead layers that are asymmetric with respect to at least one of thickness and resistance. In a preferred embodiment of the present invention, the MR head includes a write pole that extends over a thinner lead layer and that terminates over the MR film so that the write pole does not extend over a thicker lead layer. In another preferred embodiment of the present invention, a thinner lead layer is connected to a single-ended preamplification circuit, and a thicker lead layer is connected to a ground or reference voltage.
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Bussan Matthew J.
International Business Machines - Corporation
Letscher George J.
Levy Stuart S.
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