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. 13, 2002
Filed:
May. 02, 2000
Zhupei Shi, San Jose, CA (US);
Aiguo Feng, Fremont, CA (US);
Read-Rite Corporation, Fremont, CA (US);
Abstract
A merged thin film read/write head having a read element having a first shield layer, a second shield layer and a magnetoresistive element disposed between the first and second shield layers, a thin spacer layer of nonmagnetic material formed upon the second shield layer and an inductive write element having a first pole pedestal formed upon the spacer layer and a second pole separated from the pedestal by a gap. The pedestal includes a tapered portion for reducing the formation of pinned magnetic domains in the pedestal and providing improved flux passage. In combination with the thin nonmagnetic spacer layer, the tapered feature of the pedestal eliminates popcorn noise in the read element.