Method to reduce sensitivity of a perpendicular recording...

Details Method to reduce sensitivity of a perpendicular recording... Method to reduce sensitivity of a perpendicular recording...

2009-10-02

2010-12-07

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07848062

ABSTRACT:
In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome by the addition to the shields of a pair of tabs located at the edges closest to the ABS. These tabs serve to prevent flux concentrating at the edges so that horizontal fields at these edges are significantly reduced. Said tabs need to have aspect ratios of at least 2 and may be either triangular or rectangular in shape. Alternatively, the tabs may be omitted and, instead, outer portions of the shield's lower edge may be shaped so as to slope upwards away from the ABS.

REFERENCES:
patent: 5075280 (1991-12-01), Pisharody et al.
patent: 5923502 (1999-07-01), Christensen et al.
patent: 6757141 (2004-06-01), Santini et al.
patent: 6775099 (2004-08-01), Kuroda et al.
patent: 6785097 (2004-08-01), Okada et al.
patent: 7099121 (2006-08-01), Parker et al.
patent: 2001/0017753 (2001-08-01), Mori et al.
patent: 2002/0008945 (2002-01-01), Mack et al.
patent: 2003/0128478 (2003-07-01), Gill et al.
patent: 2006/0092565 (2006-05-01), Ho et al.
patent: 2006/0092569 (2006-05-01), Che et al.
patent: 2006/0203395 (2006-09-01), Guan et al.
patent: 2006/0245114 (2006-11-01), Guan et al.

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