Magnetoresistive device and manufacturing method thereof

Details Magnetoresistive device and manufacturing method thereof Magnetoresistive device and manufacturing method thereof

1997-02-18

1998-05-19

Powell, William

Etching a substrate: processes

Forming or treating article containing magnetically...

216 41, B44C 122

Patent

active

057531315

ABSTRACT:
A magnetoresistive device with suppressed Barkhausen noise for restraining a cross-talk from adjacent tracks recorded on a magnetic medium, and a manufacturing method thereof. The width of the middle portion of a detection area in a magnetoresistive layer is thicker than that of shoulder portions. In the magnetoresistive device, the shoulder portions, which perform exchange coupling with the antiferromagnetic exchange layer, show a weak reaction to external magnetic field due to the high coercive force of the shoulder portions and a smaller thickness of the magnetoresistive layer than that of the detection area. Thus, when information on any one track of an information medium is read out through the detection area, the shoulder portions only slightly react to the external magnetic field of the adjacent tracks, i.e., the affect on the detection area by the shoulder portions is minimized.

REFERENCES:
patent: 3864751 (1975-02-01), Beaulieu et al.
patent: 4663685 (1987-05-01), Tsang
patent: 4785366 (1988-11-01), Krounbi et al.
patent: 4914538 (1990-04-01), Howard et al.
patent: 5079035 (1992-01-01), Krounbi
patent: 5344669 (1994-09-01), Chen et al.
patent: 5436777 (1995-07-01), Soeya et al.
patent: 5436778 (1995-07-01), Lin et al.
patent: 5438470 (1995-08-01), Ravipait et al.
patent: 5475550 (1995-12-01), George
patent: 5483403 (1996-01-01), Voegeli
patent: 5492720 (1996-02-01), Gill et al.
patent: 5600518 (1997-02-01), Koga
patent: 5637235 (1997-06-01), Kim et al.

Affiliated with

Also associated with

Rating

Magnetoresistive device and manufacturing method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetoresistive device and manufacturing method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoresistive device and manufacturing method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1849729