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:
Jun. 20, 2006
Filed:
May. 16, 2002
Peter Schmollngruber, Aidlingen, DE;
Henrik Siegle, Leonberg, DE;
Peter Schmollngruber, Aidlingen, DE;
Henrik Siegle, Leonberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A magnetoresistive layer system including a layer sequence including at least two magnetic layers, a non-magnetic, electrically conductive intermediate layer being arranged between them; the electrical resistance of the layer system being changeable as a function of an external magnetic field acting on the layer system. At least one magnetically hard layer is integrated in the layer system, at least in certain areas, applying a magnetic field at least in the area of a boundary surface between the magnetic layers and the intermediate layer. The magnetoresistive layer system is suitable in particular for use in a GMR sensor element including coupled multilayers or in an AMR sensor element having a barberpole structure. In addition, the system includes a gradiometer including a plurality of such layer systems.