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:
Jun. 11, 2002
Filed:
Oct. 28, 1999
Ross W Stovall, Fremont, CA (US);
Yugang Wang, Milpitas, CA (US);
Carl J Carlson, Pleasanton, CA (US);
Read-Rite Corporation, Fremont, CA (US);
Abstract
A head gimbal assembly includes a magneto-resistive read element integrated with a thermally assisted write element. The head gimbal assembly includes an optical waveguide positioned between two write poles to transmit a laser beam to a recording medium. The laser beam heats the medium sufficiently and lowers its coercivity in order to facilitate writing. A laser assembly is attached to a suspension for achieving direct coupling of the laser beam to an input end of the optical waveguide. The laser assembly is produced using cost effective wafer processing techniques. The use of silicon for the mounting block allows it to be used as a heat sink, for conducting heat away from the laser diode and into the suspension.