Magnetic head having CPP sensor with improved biasing for...

Details Magnetic head having CPP sensor with improved biasing for... Magnetic head having CPP sensor with improved biasing for...

2007-08-01

2011-10-04

Negron, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

C360S324120

Reexamination Certificate

active

08031442

ABSTRACT:
A magnetic head for a hard disk drive having a CPP read head sensor that includes a layered sensor stack including a free magnetic layer and hard bias elements that are disposed on the sides of the free magnetic layer to provide a biasing magnetization for the free magnetic layer. To increase the coercivity of the hard bias elements, and thereby improve the biasing of the magnetization of the free magnetic layer, the ratio (t/H) of the thickness t to the height H of the hard bias elements is fabricated to be within the range of from approximately 1 to approximately 1/15.

REFERENCES:
patent: 5546254 (1996-08-01), Gill
patent: 5654854 (1997-08-01), Mallary
patent: 5729410 (1998-03-01), Fontana, Jr. et al.
patent: 5905611 (1999-05-01), Yoda et al.
patent: 6005753 (1999-12-01), Fontana, Jr. et al.
patent: 6344954 (2002-02-01), Redon et al.
patent: 6563679 (2003-05-01), Li et al.
patent: 6724582 (2004-04-01), Funayama et al.
patent: 6762915 (2004-07-01), Pokhil et al.
patent: 6943998 (2005-09-01), Shimazawa et al.
patent: 7046487 (2006-05-01), Terunuma
patent: 2001/0033464 (2001-10-01), Shimazawa et al.
patent: 2004/0061986 (2004-04-01), Kagami et al.
patent: 2004/0114285 (2004-06-01), Ishikawa et al.
patent: 2004/0207960 (2004-10-01), Saito et al.
patent: 2004/0207962 (2004-10-01), Saito et al.
patent: 2005/0195536 (2005-09-01), Kagami et al.
patent: 2005/0270703 (2005-12-01), Hayakawa et al.
patent: 2008/0239582 (2008-10-01), Kanaya et al.
patent: 10335714 (1998-12-01), None

Affiliated with

Also associated with

Rating

Magnetic head having CPP sensor with improved biasing for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic head having CPP sensor with improved biasing for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic head having CPP sensor with improved biasing for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4254468