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:
Apr. 24, 2001
Filed:
Nov. 10, 1998
Zhong (Stella) Wu, Fremont, CA (US);
Rajiv Y. Ranjan, San Jose, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
High areal density magnetic recording media exhibiting high Hr and low medium noise are formed with a thin CoCrTa intermediate layer having a high Cr content, such as above 15 atomic % to about 20 atomic % Cr, e.g., about 16 to about 17 atomic % Cr. The high Cr content of the CoCrTa intermediate magnetic alloy layer provides a smooth lattice match transition for epitaxial growth of a magnetic layer thereon exhibiting high anisotropy, thereby achieving high Hr and high SNR. Embodiments include depositing the high Cr content CoCrTa intermediate layer at a thickness of about 5 to about 50 Å on a Cr-alloy underlayer.