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. 17, 2005
Filed:
Aug. 07, 2002
Arshad Alfoqaha, San Jose, CA (US);
Edmund Fanslau, San Jose, CA (US);
Arshad Alfoqaha, San Jose, CA (US);
Edmund Fanslau, San Jose, CA (US);
Western Digital (Fremont), Inc., Fremont, CA (US);
Abstract
A technique for reducing pole tip protrusion ('PTP') in a magnetic write head and giant magnetoresistive ('GMR') stripe temperature in an associated read head structure utilizing one or more internal diffuser regions. In a representative embodiment disclosed, this may be effectuated through the appropriate placement of a relatively highly conductive material diffuser region (e.g. gold (Au) or copper (Cu)) above the poles, between the first pole and the coil and/or through the first pole, second and first shields and undercoat layer to the substrate in order to conduct heat away from the write head poles, insulating layers (e.g. photoresist) and shields.