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:
Oct. 23, 2012
Filed:
Sep. 23, 2011
Xuhui Jin, San Jose, CA (US);
Yuchen Zhou, San Jose, CA (US);
Joe Smyth, Aptos, CA (US);
Tobias Maletzky, Milpitas, CA (US);
Kenichi Takano, Santa Clara, CA (US);
Erhard Schreck, San Jose, CA (US);
Xuhui Jin, San Jose, CA (US);
Yuchen Zhou, San Jose, CA (US);
Joe Smyth, Aptos, CA (US);
Tobias Maletzky, Milpitas, CA (US);
Kenichi Takano, Santa Clara, CA (US);
Erhard Schreck, San Jose, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A TAMR head is disclosed with a triangular shaped plasmon antenna covered on two sides with a plasmon layer that generates an edge plasmon mode along a vertex of the two plasmon sides formed opposite a main pole layer. A plasmon shield (PS) is formed along the ABS and opposite the vertex to confine an electric field from the edge plasmon mode within a small radius of the edge plasmon tip thereby reducing the optical spot size on the magnetic medium and enhancing writability. An end of a waveguide used to direct input electromagnetic radiation to the plasmon antenna adjoins a PS side opposite the ABS. In one embodiment, a magnetic shield may be formed along the ABS and adjoins the PS so that a first PS section terminates at the ABS and faces the vertex while a second PS section is formed between the magnetic shield and waveguide end.