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:
Jul. 28, 2009
Filed:
Dec. 14, 2006
GE Yi, Culmore, IE;
Suguo Huo, Londonderry, IE;
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A magnetoresistive sensor includes first and second magnetic leads and a constricted junction joining the first and second magnetic leads. The first and second magnetic leads are formed of a magnetic and electrically conductive material. The constricted junction includes a junction core formed of magnetic and electrically conductive material. In one embodiment, the constricted junction also includes an ion implanted outer shell portion that at least partially surrounds the junction core and has reduced magnetic and electrical conductivity relative to the junction core. In another embodiment, the junction core has a length that is defined by a distance separating the first and second magnetic leads, and a width that is perpendicular to the length and is substantially less than an average unrestricted magnetic domain wall width corresponding to the magnetic material of the junction core.