Thin-film magnetic head having magnetic layer with...

Details Thin-film magnetic head having magnetic layer with... Thin-film magnetic head having magnetic layer with...

2007-04-23

2010-10-19

Feild, Joseph H (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S125500

Reexamination Certificate

active

07817376

ABSTRACT:
Provided is a thin-film magnetic head capable of suppressing ATE while ensuring sufficient controllability of the magnetic pole width and sufficient write field intensity. The head includes an electromagnetic coil element comprising: upper and lower magnetic layers; a write gap layer; and a write coil layer, the lower magnetic layer comprising: a lower yoke layer, a non-magnetic portion formed on an end portion on the ABS side of the lower yoke layer and extending to a head end surface on the ABS side; and a lower magnetic pole layer, an upper surface of the lower magnetic pole layer being in contact with the write gap layer, and an end surface in the head end surface of the lower magnetic pole layer having a shape whose width along a track width direction is defined by a predetermined magnetic pole width.

REFERENCES:
patent: 6504686 (2003-01-01), Sasaki
patent: 2002/0024776 (2002-02-01), Sasaki et al.
patent: 2003/0231425 (2003-12-01), Macken et al.
patent: 2005/0264934 (2005-12-01), Oike et al.
patent: 11-007609 (1999-01-01), None
patent: 2000-315302 (2000-11-01), None

Affiliated with

Also associated with

Rating

Thin-film magnetic head having magnetic layer with... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin-film magnetic head having magnetic layer with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin-film magnetic head having magnetic layer with... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4156343