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. 03, 2012
Filed:
Jul. 01, 2008
Yongjian Sun, San Jose, CA (US);
Brian R. York, San Jose, CA (US);
Yongjian Sun, San Jose, CA (US);
Brian R. York, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A system in one embodiment includes a magnetic sensor having a free magnetic layer, a nanocrystalline seed layer formed on an insulative amorphous material; a chromium-containing underlayer formed on the seed layer; and a hard bias layer formed on the underlayer and separated from the sensor by the insulative amorphous material. A method according to a further embodiment includes forming an amorphous insulative layer encapsulating a sensor stack; forming a nanocrystalline seed layer on the amorphous insulative material; forming a chromium-containing underlayer on the seed layer; and forming a hard bias layer on the underlayer. Additional systems and methods are presented.