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:
Aug. 01, 2006
Filed:
Mar. 13, 2003
James Mac Freitag, San Jose, CA (US);
Mustafa Michael Pinarbasi, Morgan Hill, CA (US);
Patrick Rush Webb, Los Gatos, CA (US);
James Mac Freitag, San Jose, CA (US);
Mustafa Michael Pinarbasi, Morgan Hill, CA (US);
Patrick Rush Webb, Los Gatos, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetoresistive sensor having bias stabilization tabs includes a protective cap layer. The protective cap layer prevents oxidation, avoids potential damage from using ion milling for oxidation removal, and lowers parasitic resistance. In one embodiment, a bias layer, having a central portion with quenched magnetic moment, is formed over the free layer with an intervening coupling layer. A disk drive is provided with the magnetoresistive sensor including a protective cap layer.