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:
Aug. 29, 2000
Filed:
Apr. 10, 1998
Hugo Alberto Santini, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method makes a magnetic write head with a plated self-aligned zero throat height (ZTH) defining layer without reflective notching. In the method a seedlayer is deposited on a first pole piece layer, a negative resist layer is photopatterned on the seedlayer with a first opening that frames a location for a second pole piece, a positive resist layer is photopatterned on the negative resist layer with a second opening that frames a location for the ZTH defining layer, the ZTH defining layer is plated, the positive resist is removed, the second pole piece is plated and the negative resist is removed. The ZTH defining layer has a front vertical edge that is substantially parallel to an air bearing surface (ABS) and that is recessed from the ABS for defining the ZTH of the head.