The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2008
Filed:
Oct. 18, 2005
Susumu Aoki, Tokyo, JP;
Reiichi Kurumisawa, Tokyo, JP;
Norikazu Ota, Tokyo, JP;
Yasuyuki Notsuke, Tokyo, JP;
Yuichi Watabe, Tokyo, JP;
Susumu Aoki, Tokyo, JP;
Reiichi Kurumisawa, Tokyo, JP;
Norikazu Ota, Tokyo, JP;
Yasuyuki Notsuke, Tokyo, JP;
Yuichi Watabe, Tokyo, JP;
TDK Corporation, Tokyo, JP;
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 Pwhile being adjacent to a gap layer, and an auxiliary insulating layer is similarly formed so as to extend from the position Pwhile being adjacent to the gap layer and specify throat height on the basis of the position PAfter 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 Pby the auxiliary insulating layer.