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:
May. 01, 2012
Filed:
Dec. 15, 2009
Xiaoping Bian, Saratoga, CA (US);
Jack Jyh-kau Chang, Fremont, CA (US);
Qing Dai, San Jose, CA (US);
Hoa V. DO, Fremont, CA (US);
Yoshihiro Ikeda, San Jose, CA (US);
Kentaro Takano, San Jose, CA (US);
Chu S. Tran, San Jose, CA (US);
Xiaoping Bian, Saratoga, CA (US);
Jack Jyh-Kau Chang, Fremont, CA (US);
Qing Dai, San Jose, CA (US);
Hoa V. Do, Fremont, CA (US);
Yoshihiro Ikeda, San Jose, CA (US);
Kentaro Takano, San Jose, CA (US);
Chu S. Tran, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic storage medium according to one embodiment includes a substrate; a first oxide magnetic layer formed above the substrate; a second oxide magnetic layer formed above the first oxide magnetic layer; an exchange coupling layer formed above the second oxide magnetic layer, the exchange coupling layer comprising an oxide; and a magnetic cap layer formed above the exchange coupling layer. A method according to one embodiment includes forming a high Ku first oxide magnetic layer above a substrate by sputtering; forming a low Ku second oxide magnetic layer above the first oxide magnetic layer by sputtering; forming an exchange coupling layer of CoCrPt-oxide above the second oxide magnetic layer; and forming a magnetic cap layer above the exchange coupling layer. Additional systems and methods are also presented.