Thin-film magnetic head and method of manufacturing same

Details Thin-film magnetic head and method of manufacturing same Thin-film magnetic head and method of manufacturing same

2006-12-26

2006-12-26

Tupper, R. S. (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07154706

ABSTRACT:
A thin-film magnetic head comprises a bottom pole layer having a surface that faces toward a write gap layer. This surface incorporates a first surface including an end portion located in the air bearing surface, and a second surface located away from the air bearing surface. There is a difference in level between the first surface and the second surface, so that the second surface is located farther from the top pole layer than the first surface. A top pole layer incorporates a throat height defining layer, an intermediate layer, and a yoke portion layer. The yoke portion layer includes a track width defining portion for defining the track width. Each of the throat height defining layer, the intermediate layer, and the track width defining portion has a width equal to the track width.

REFERENCES:
patent: 5793578 (1998-08-01), Heim et al.
patent: 6043959 (2000-03-01), Crue et al.
patent: 6259583 (2001-07-01), Fontana, Jr. et al.
patent: 6317290 (2001-11-01), Wang et al.
patent: 6400525 (2002-06-01), Sasaki et al.
patent: 6560068 (2003-05-01), Sasaki
patent: 6673633 (2004-01-01), Sasaki
patent: 6680815 (2004-01-01), Sasaki
patent: 6697220 (2004-02-01), Sasaki
patent: 6722018 (2004-04-01), Santini
patent: 6731460 (2004-05-01), Sasaki
patent: 6762911 (2004-07-01), Sasaki et al.
patent: 6801407 (2004-10-01), Sasaki et al.
patent: 6850390 (2005-02-01), Sato et al.
patent: 6885519 (2005-04-01), Sasaki
patent: A 2001-52311 (2001-02-01), None

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