Dynamic magnetic information storage or retrieval – Head – Core
Reexamination Certificate
2005-10-18
2008-11-18
Klimowicz, William J (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Core
C360S125210, C029S603150
Reexamination Certificate
active
07453668
ABSTRACT:
The present invention provides a method of manufacturing a thin film magnetic head capable of assuring recording characteristics by determining throat height with high precision. A TH specifying layer is formed so as to extend to a position P1while being adjacent to a gap layer, and an auxiliary insulating layer is similarly formed so as to extend from the position P1while being adjacent to the gap layer and specify throat height on the basis of the position P1.After that, a main insulating layer is formed so as to cover a thin film coil on the auxiliary insulating layer, and a yoke layer is formed so as to extend while being partially on the TH specifying layer. The throat height is determined accurately and stably on the basis of the position P1by the auxiliary insulating layer.
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Aoki Susumu
Kurumisawa Reiichi
Notsuke Yasuyuki
Ota Norikazu
Watabe Yuichi
Klimowicz William J
Oliff & Berridg,e PLC
TDK Corporation
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