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:
Nov. 21, 2000
Filed:
Nov. 10, 1998
Xing Song, Mountain View, CA (US);
Qixu Chen, Milpitas, CA (US);
Charles Leu, Fremont, CA (US);
Rajiv Y Ranjan, San Jose, CA (US);
Seagate Technolgy, Inc., Scotts Valley, CA (US);
Abstract
A high areal density magnetic recording medium exhibiting high remanent coercivity and high coercivity squareness is formed with a thin CoCrTa intermediate layer to provide appropriate crystalline orientation and surface morphology for nucleation and growth of a magnetic layer thereon. The present invention also enables the use of lower substrate heating temperatures during deposition. Embodiments include depositing an intermediate Co alloy layer comprising about 10 up to about 15 atomic % Cr and about 1 to about 6 atomic % Ta at a thickness of about 1.5 to about 150 .ANG..