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:
Aug. 12, 2003
Filed:
Nov. 01, 2000
Tetsuya Mino, Chiba, JP;
Yasufumi Uno, Nagano, JP;
Koji Matsukuma, Hyogo, JP;
Koichi Terunuma, Tokyo, JP;
Masahiro Kondo, Chiba, JP;
TDK Corporation, Tokyo, JP;
Abstract
A method of manufacturing a thin-film magnetic head, includes the steps of: forming, on a lower auxiliary pole, a three-layer pole tip structure consisting of a lower pole tip element, a recording gap layer and an upper pole tip element; depositing a lower insulating layer on the three-layer pole tip structure; polishing the lower insulating layer by chemical-mechanical polishing so that a top surface of the lower insulating layer is leveled lower than a top of the three-layer pole tip structure over at least a region within which a coil conductor is formed; forming the coil conductor on the lower insulating layer; forming an upper insulating to cover the coil conductor; and forming an upper auxiliary pole so that a part of which contacts to the upper pole tip element.