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. 03, 2002
Filed:
Dec. 02, 1999
James C. Cates, Louisville, CO (US);
Storage Technology Corporation, Louisville, CO (US);
Abstract
A magnetic head having an enhanced recession resistance characteristic, and a method of fabricating the magnetic head having the enhanced recession resistance characteristic is disclosed. The improvement is the addition of one or more hard protective layers exposed edgewise at the media-head interface. Each protective layer is formed between the substrate and the top closure of the magnetic head to a thickness of greater than approximately 0.2 micrometers and a hardness of greater than approximately 850 Knoop. The protective layers are formed by depositing a hard metal film above, below or within the read and write transducers inside the magnetic head. The hard metal film is selected for its hardness, ease of use during the fabrication process, and compatibility with adjoining materials. The hard metals include, but are not limited to, chromium, iridium, rhodium, tantalum, titanium and tungsten.