Thin film magnetic head

Details Thin film magnetic head Thin film magnetic head

2005-07-19

2005-07-19

Miller, Brian E. (Department: 2652)

Dynamic magnetic information storage or retrieval

Fluid bearing head support

Disk record

C360S234700

Reexamination Certificate

active

06920016

ABSTRACT:
A thin film magnetic head includes a three-step configuration including deep and shallow groove surfaces, a super shallow groove surface, and an air bearing surface, and also, island-shaped center rail is provided in the center of the air outflow end of the disk-facing air bearing surface having a boundary on the surface of base alumina between a head element portion and a substrate, without including the surface of the substrate. Further, by providing in the surface of the substrate the super shallow groove surface shallower than a shallow groove surface, an alumina recession between the surface of the substrate and the head element portion, produced in a shallow dual step sub ambient slider, can be eliminated. Magnetic spacing between the head of the head element portion and the magnetic layer of the disk can be thereby reduced.

REFERENCES:
patent: 5687045 (1997-11-01), Okai et al.
patent: 5822153 (1998-10-01), Lairson et al.
patent: 6219200 (2001-04-01), Waki et al.
patent: 6424494 (2002-07-01), Koishi
patent: 6462909 (2002-10-01), Boutaghou et al.
patent: 6525909 (2003-02-01), Qian et al.
patent: 6556381 (2003-04-01), Kohira et al.
patent: 6556389 (2003-04-01), Boutaghou et al.
patent: 6657820 (2003-12-01), Kohira et al.
patent: 6661605 (2003-12-01), Pust et al.
patent: 6724572 (2004-04-01), Stoev et al.
patent: 2001/0030834 (2001-10-01), Kohira et al.
patent: 2002/0105758 (2002-08-01), Chiba et al.
patent: A-11-302636 (1999-11-01), None
patent: A-2001-236619 (2001-08-01), None
patent: A-2001-297421 (2001-10-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3393187