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:
Mar. 26, 2013
Filed:
Nov. 04, 2011
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
Masachika Hashino, Tokyo, JP;
Koichi Otani, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
Masachika Hashino, Tokyo, JP;
Koichi Otani, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A method for manufacturing a thin-film magnetic head includes processes of forming a polishing position sensor and a recording head portion alongside on one side of a wafer. The process of forming the recording head portion has a step of performing a photolithography process after applying an alkali soluble resin film and a photoresist film in the named order. The process of forming the polishing position sensor has a step of performing a photolithography process on the photoresist film while having only the photoresist film out of the alkali soluble resin film and the photoresist film.