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, 2006
Filed:
Jun. 27, 2003
Joel William Hoehn, Hudson, WI (US);
Cyril Peter Devries, Bloomington, MN (US);
Kristin Joy Duxstad, Eden Prarie, MN (US);
Harry Sam Edelman, Minneapolis, MN (US);
Joel William Hoehn, Hudson, WI (US);
Cyril Peter DeVries, Bloomington, MN (US);
Kristin Joy Duxstad, Eden Prarie, MN (US);
Harry Sam Edelman, Minneapolis, MN (US);
Seagate Technology, LLC, Scotts Valley, CA (US);
Abstract
A method of forming a tunneling magnetoresistive head begins by forming a tunneling magnetoresistive stack having a tunnel barrier. An air bearing surface is formed of the tunneling magnetoresistive stack. The air bearing surface is ion etched causing a deficiency of a constituent in a portion of the tunnel barrier adjacent the air bearing surface. The deficiency of the constituent is replenished in the portion of the tunnel barrier adjacent the air bearing surface to restore the electrical properties of the tunnel barrier.