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. 31, 2008
Hamid Balamane, Portola Valley, CA (US);
Thomas Dudley Boone, Jr., San Jose, CA (US);
Neil Leslie Robertson, Palo Alto, CA (US);
Barry Cushing Stipe, San Jose, CA (US);
Timothy Carl Strand, San Jose, CA (US);
Hamid Balamane, Portola Valley, CA (US);
Thomas Dudley Boone, Jr., San Jose, CA (US);
Neil Leslie Robertson, Palo Alto, CA (US);
Barry Cushing Stipe, San Jose, CA (US);
Timothy Carl Strand, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
According to one embodiment, an apparatus includes a near field transducer comprising a conductive metal film having a main body and a ridge extending from the main body and an optical waveguide for illumination of the near field transducer, a light guiding core layer of the optical waveguide being spaced from the near field transducer by less than about 100 nanometers and greater than 0 nanometers. In another embodiment, a method includes forming a near field transducer structure and removing a portion of the near field transducer structure. The method also includes forming a cladding layer adjacent a remaining portion of the near field transducer structure, wherein a portion of the cladding layer extends along the remaining portion of the near field transducer structure and forming a core layer above the cladding layer. Other apparatuses and methods are also included in the invention.