Patent ID: 7535217

Claim:
A force sensor having a layer sequence for determining a force acting on the layer sequence along a predefined force axis, the layer sequence comprising: a first magnetic layer with a first magnetization direction; a separating layer; and a second magnetic layer with a second magnetization direction, the first magnetic layer, separating layer, and second magnetic layer arranged successively in a vertical direction; wherein the first magnetization direction is fixed with respect to the layer sequence; wherein the second magnetic layer has a magnetostriction constant that is different from zero; wherein the second magnetic layer has a uniaxial magnetic anisotropy with an anisotropy axis; wherein the uniaxial magnetic anisotropy is generated using shape anisotropy; wherein the second magnetization direction encloses an angle of more than 0° and less than 90° with the force axis in the quiescent state; and wherein the anisotropy axis encloses an angle of more than 0° and less than 90° with the force axis.