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. 31, 2017
Filed:
Oct. 19, 2015
Seagate Technology Llc, Cupertino, CA (US);
Ruoxi Yang, St. Louis Park, MN (US);
Pierre Asselin, Richfield, MN (US);
Yongjun Zhao, Eden Prairie, MN (US);
James Gary Wessel, Savage, MN (US);
Tae-Woo Lee, Eden Prairie, MN (US);
Werner Scholz, Camberwell, AU;
Frank Edgar Stageberg, Edina, MN (US);
SEAGATE TECHNOLOGY LLC, Cupertino, CA (US);
Abstract
A write head includes a near-field transducer near a media-facing surface of the write head. The write head includes a waveguide having a core with a first side disposed proximate to the near-field transducer. The core overlaps the near-field transducer at a substrate-parallel plane. The core includes one of a step or a taper on a second side facing away from the first side. The step or the taper causes a reduced thickness of the core normal to the substrate-parallel plane. The write head includes a cladding layer that encompassing the second side of the core and that fills in the step or the taper.