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:
Dec. 30, 2014
Filed:
May. 09, 2008
Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Atsushi Iijima, Shatin, CN;
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Atsushi Iijima, Shatin, CN;
Headway Technologies, Inc., Milpitas, CA (US);
SAE Magnetics (H.K.) Ltd., Hong Kong, CN;
Abstract
A thin-film magnetic head is constructed such that a main magnetic pole layer having a magnetic pole end face on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the main magnetic pole layer on the medium-opposing surface side, a gap layer formed between the main magnetic pole layer and write shield layer, and a thin-film coil wound about the write shield layer or main magnetic pole layer are laminated on a substrate. This thin-film coil has a plurality of turn parts arranged at respective positions having different distances from the medium-opposing surface, while a non-expandable part made of an insulating material having a coefficient of thermal expansion smaller than that of a photosensitive resin is formed between the turn parts.