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:
Jul. 09, 2002
Filed:
Aug. 07, 2000
Yiping Hsiao, San Jose, CA (US);
Cherngye Hwang, San Jose, CA (US);
Ciaran A. Fox, Sunnyvale, CA (US);
Richard Hsiao, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The invention relates to a method for producing magnetic sliders having a permanent protective coating of carbon over the air bearing surface. The method comprises the steps of: (a) depositing a protective coating on a surface of the slider, the protective coating comprising an underlayer of carbon and a top layer selected from silicon and titanium; (b) depositing a photoresist layer onto the protective coating; (c) imagewise exposing the photoresist layer to radiation; (d) developing the image in the photoresist layer to expose the protective coating; (e) transferring the image through the protective layer and into the slider to form the air bearing pattern in the slider; and (f) removing the top layer of the protective coating.