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:
Dec. 02, 2014
Filed:
Jun. 29, 2012
Yang Yun, San Jose, CA (US);
Xiaofeng Yao, San Jose, CA (US);
Yi Chen, San Jose, CA (US);
Paul C. Dorsey, Los Altos, CA (US);
Yang Yun, San Jose, CA (US);
Xiaofeng Yao, San Jose, CA (US);
Yi Chen, San Jose, CA (US);
Paul C. Dorsey, Los Altos, CA (US);
WD Media, LLC, San Jose, CA (US);
Abstract
Methods for reducing the surface roughness of magnetic media to be used in storage drives are described. One such method includes forming a recording media on a substrate, the recording media including at least one recording layer configured to store information magnetically, depositing a first layer of carbon on the recording media, the first carbon layer having a first average preselected thickness, etching the first carbon layer to have a second average preselected thickness less than the first average preselected thickness, depositing a second layer of carbon on the etched first carbon layer, the second carbon layer having a third average preselected thickness that is less than the first average preselected thickness, and implanting nitrogen in the second carbon layer.
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