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. 01, 2010
Filed:
Jul. 17, 2007
Yinshi Liu, Foster City, CA (US);
Benjamin Chen, San Jose, CA (US);
Kyusik Sin, Pleasanton, CA (US);
Hongping Yuan, Fremont, CA (US);
Yinshi Liu, Foster City, CA (US);
Benjamin Chen, San Jose, CA (US);
Kyusik Sin, Pleasanton, CA (US);
Hongping Yuan, Fremont, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method of fabricating a write head for perpendicular recording includes forming a pole layer on an undercoat layer, forming a mask over at least a portion of the pole layer, and forming the pole by removing material from the pole layer. The method further includes forming a first gap portion of a gap along a first side and a second side of the pole, forming a protective layer over at least a portion of the first gap portion, removing the mask, and removing the protective layer. The method further includes forming a second gap portion of the gap over at least a top surface of the pole and forming a shield over at least the second gap portion.