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:
May. 19, 2009
Filed:
Mar. 07, 2006
Eckard Quandt, Bonn, DE;
Manfred Ruehrig, Eckental, DE;
Stephan Schmitt, Munich, DE;
Bernhard Winkler, Munich, DE;
Joachim Wecker, Röttenbach, DE;
Juergen Zimmer, Ottobrunn, DE;
Eckard Quandt, Bonn, DE;
Manfred Ruehrig, Eckental, DE;
Stephan Schmitt, Munich, DE;
Bernhard Winkler, Munich, DE;
Joachim Wecker, Röttenbach, DE;
Juergen Zimmer, Ottobrunn, DE;
Infineon Technologies AG, Munich, DE;
Abstract
The invention relates to a force sensor having a layer sequence for determining a force acting on the layer sequence along a predefined force axis. The layer sequence includes, arranged successively in a vertical direction, a first magnetic layer with a first magnetization direction, a separating layer and a second magnetic layer with a second magnetization direction. Here, the first magnetization direction is secured with respect to the layer sequence. The second magnetic layer has a magnetostriction constant that is different from zero and a uniaxial magnetic anisotropy with an anisotropy axis. The uniaxial magnetic anisotropy is generated using shape anisotropy. The second magnetization direction encloses an angle of more than 0° and less than 90° with the force axis in the quiescent state, and the anisotropy axis encloses an angle of more than 0° and less than 90° with the force axis.