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:
Apr. 26, 2016
Filed:
Dec. 30, 2011
Catherine Ann Nordman, Saint Paul, MN (US);
Peter Eames, Minneapolis, MN (US);
Russ Beech, Ramsey, MN (US);
David J. Brownell, Eden Prairie, MN (US);
Catherine Ann Nordman, Saint Paul, MN (US);
Peter Eames, Minneapolis, MN (US);
Russ Beech, Ramsey, MN (US);
David J. Brownell, Eden Prairie, MN (US);
NVE Corporation, Eden Prairie, MN (US);
Abstract
An MTJ sensor having low hysteresis and high sensitivity is disclosed. The MTJ sensor includes, in one embodiment, a bridge with first and second active MTJ elements and first and second passive MTJ elements connected in a Wheatstone bridge configuration. First and second magnetic shield elements are located over the first and second passive MTJ elements and form a gap therebetween that concentrates magnetic flux toward the first and second active MTJ elements. A three-dimensional coil is wound around the first and second magnetic shield elements with over-windings located over the first and second magnetic shield elements and under-windings located under the first and second magnetic shield elements, connected together by a plurality of vias adjacent the first and second magnetic shield elements.