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:
Sep. 05, 2006
Filed:
Feb. 18, 2003
Akira Takahashi, Niigata-ken, JP;
Jun Takahashi, Niigata-ken, JP;
Yuko Kawasaki, Niigata-ken, JP;
Kenji Honda, Niigata-ken, JP;
Naohiro Ishibashi, Niigata-ken, JP;
Eiji Umetsu, Niigata-ken, JP;
Akira Takahashi, Niigata-ken, JP;
Jun Takahashi, Niigata-ken, JP;
Yuko Kawasaki, Niigata-ken, JP;
Kenji Honda, Niigata-ken, JP;
Naohiro Ishibashi, Niigata-ken, JP;
Eiji Umetsu, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A thin-film electrode layer having a superior electromigration resistance is disclosed. The thin-film electrode layer includes a first base layer composed of β-Ta, a main conductive layer composed of Au, and a protective layer. The protective layer is a composite of a Cr sublayer and an α-Ta sublayer. A thin-film magnetic head having the thin-film electrode layers and a method for forming electrodes in the thin-film magnetic head are also disclosed.