Method of manufacturing a perpendicular magnetic recording head

Details Method of manufacturing a perpendicular magnetic recording head Method of manufacturing a perpendicular magnetic recording head

2007-02-27

2007-02-27

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603110, C029S603130, C029S603140, C029S603160, C029S603180, C360S123090, C360S125330, C360S317000, C451S005000, C451S041000

Reexamination Certificate

active

11222441

ABSTRACT:
A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.

REFERENCES:
patent: 4546398 (1985-10-01), Toda et al.
patent: 4636897 (1987-01-01), Nakamura et al.
patent: 4855854 (1989-08-01), Wada et al.
patent: 4873599 (1989-10-01), Sueoka
patent: 5218497 (1993-06-01), Tanabe et al.
patent: 5463518 (1995-10-01), Otomo et al.
patent: 5742998 (1998-04-01), Jones, Jr.
patent: 6063512 (2000-05-01), Osaka et al.
patent: 6101067 (2000-08-01), Matsuzono et al.
patent: 6259583 (2001-07-01), Fontana et al.
patent: 6292329 (2001-09-01), Sato et al.
patent: 6297938 (2001-10-01), Niijima
patent: 6339872 (2002-01-01), Chang et al.
patent: 6477005 (2002-11-01), Sasaki
patent: 6477008 (2002-11-01), Change et al.
patent: 6480355 (2002-11-01), Kamijima
patent: 6513228 (2003-02-01), Khizroev et al.
patent: 6687084 (2004-02-01), Takahashi et al.
patent: 6693768 (2004-02-01), Crue et al.
patent: 01037703 (1989-02-01), None
patent: 03017807 (1991-01-01), None
patent: 04001924 (1992-01-01), None
patent: 04017105 (1992-01-01), None
patent: 04134610 (1992-05-01), None
patent: 05174332 (1993-07-01), None
patent: 8-106613 (1996-04-01), None
patent: 10-320720 (1998-12-01), None

Affiliated with

Also associated with

Rating

Method of manufacturing a perpendicular magnetic recording 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 Method of manufacturing a perpendicular magnetic recording head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a perpendicular magnetic recording head will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3850332