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:
Feb. 25, 2014
Filed:
Mar. 19, 2010
Dimitar Velikov Dimitrov, Edina, MN (US);
Dion Song, Eden Prairie, MN (US);
Mark William Covington, Edina, MN (US);
James Wessel, Savage, MN (US);
Dimitar Velikov Dimitrov, Edina, MN (US);
Dion Song, Eden Prairie, MN (US);
Mark William Covington, Edina, MN (US);
James Wessel, Savage, MN (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A magnetoresistive read sensor with improved sensitivity and stability is described. The sensor is a trilayer stack positioned between two electrodes. The trilayer stack has two free layers separated by a nonmagnetic layer and a biasing magnet positioned at the rear of the stack and separated from the air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by an insulator layer to enhance reader sensitivity.