Method of manufacturing a thin film magnetic head

Details Method of manufacturing a thin film magnetic head Method of manufacturing a thin film magnetic head

2007-02-13

2007-02-13

Kim, Paul D. (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S603140, C029S603160, C029S603180, C029S606000, C360S123090, C360S125330, C360S317000, C427S127000, C427S128000, C451S005000, C451S041000

Reexamination Certificate

active

11045993

ABSTRACT:
A thin film magnetic head has coil layer formed in a space surrounded by a lower core layer, a protruding layer and a back gap layer. The top of these layers are planarized to a continuous flat surface. A lower magnetic pole layer, a gap layer, an upper magnetic pole layer and an upper core layer are formed on the flat surface and are precisely formed in a predetermined shape. The track width Tw can also be set to a predetermined dimension by the width of the upper magnetic pole layer at a surface facing the recording medium. Also, the magnetic path can be shortened to improve magnetic properties.

REFERENCES:
patent: 6154346 (2000-11-01), Sasaki
patent: 6191918 (2001-02-01), Clarke et al.
patent: 6259583 (2001-07-01), Fontana, Jr. et al.
patent: 6301085 (2001-10-01), Sato
patent: 6417990 (2002-07-01), Zhou et al.
patent: 6801392 (2004-10-01), Kawasaki et al.
patent: 6894870 (2005-05-01), Takahashi et al.
patent: 6898054 (2005-05-01), Kawasaki et al.
patent: 2001/0010611 (2001-08-01), Yazawa et al.
patent: 2001/0013505 (2001-08-01), Sasaki
patent: 2001/0040764 (2001-11-01), Kamijima
patent: 07-141621 (1995-06-01), None
patent: 2001-250203 (2001-09-01), None
patent: 2001-319311 (2001-11-01), None
Search Report issued on Oct. 27, 2003 for corresponding British Patent Application No. 0313691.8.
Copy of Notification of Reasons for Refusal dated Apr. 25, 2006 for corresponding Japanese Patent Application No. 2002-354476.

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