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:
Jan. 08, 2013
Filed:
Nov. 02, 2010
Jordan A. Katine, Mountain View, CA (US);
Vijay P. S. Rawat, San Jose, CA (US);
Neil L. Robertson, Palo Alto, CA (US);
Barry C. Stipe, San Jose, CA (US);
Jordan A. Katine, Mountain View, CA (US);
Vijay P. S. Rawat, San Jose, CA (US);
Neil L. Robertson, Palo Alto, CA (US);
Barry C. Stipe, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A thermally assisted magnetic write head having a near-field transducer, a magnetic lip and a diffusion barrier layer between the near-field transducer and the magnetic lip. The near-field transducer includes a transparent aperture constructed of a material such as SiOand an opaque metallic antenna constructed of a metal such as Au formed at a first edge of the aperture. A magnetic lip, connected with the write pole is formed near a second edge of the aperture with a diffusion barrier layer being disposed between the magnetic lip and the aperture. The diffusion barrier layer prevents migration of atomic between the aperture and the magnetic lip, thereby ensuring robust performance at localized high temperatures generated by the near-field transducer.