Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-07-24
2007-07-24
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
10816294
ABSTRACT:
A magnetoresistive read sensor includes a first shield layer and a first gap layer over the first shield layer. The read sensor further includes a spin-valve stack over the first gap layer. The spin-valve stack includes a seed layer over the first gap layer. At least a portion of the seed layer includes a soft-magnetic material. The spin-valve stack further includes an antiferromagnetic layer over the seed layer. The antiferromagnetic layer is magnetically decoupled from the seed layer. The spin-valve stack further includes a free layer over a first portion of the antiferromagnetic layer. The read sensor further includes a bias structure adjacent to the free layer. The bias structure is located over a second portion of the antiferromagnetic layer and is isolated from the seed layer by the second portion.
REFERENCES:
patent: 6223420 (2001-05-01), Lee et al.
patent: 6512661 (2003-01-01), Louis
patent: 6783874 (2004-08-01), Hasegawa et al.
patent: 2003/0030948 (2003-02-01), Umetsu
patent: 2004/0004792 (2004-01-01), Hasegawa et al.
patent: 2004/0106012 (2004-06-01), Hasegawa et al.
patent: 2004/0252419 (2004-12-01), Takano
Chen Tianjie
Knobbe Martens Olson & Bear
Western Digital (Fremont) Inc.
LandOfFree
Magnetoresistive read sensor with reduced effective... 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 read sensor with reduced effective..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoresistive read sensor with reduced effective... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3793507