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:
Jan. 20, 2004
Filed:
Apr. 23, 2002
Raj Thangaraj, Fremont, CA (US);
Charles Frederick Brucker, Pleasanton, CA (US);
Huan Tang, Los Altos, CA (US);
Jing Gui, Fremont, CA (US);
Gary Rauch, Pleasanton, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Corrosion protection of magnetic recording media is achieved by providing a thin protective barrier layer comprising ruthenium on the magnetic layer. Embodiments include forming a corrosion barrier layer less than 10 Å of elemental ruthenium, a ruthenium oxide, a ruthenium alloy, a layer comprising mixed oxides of ruthenium and an alloying element, a composite of a ruthenium layer and a layer of ruthenium oxide or a composite of a ruthenium alloy layer and a layer of mixed oxides of ruthenium and an alloying element. A carbon containing an overcoat is then formed, as at a thickness of about 10 Å to 50 Å, on the corrosion protective layer.