| 摘要 |
A magnetic flux sensor built up from a layer structure, said sensor comprising a magnetoresistive sensor element forming part of a layer in the layer structure and incorporated into a measuring current circuit, and said sensor further comprising a bias current circuit for generating a bias field in the sensor element, characterized in that in the bias current circuit, a reference resistor is incorporated which is structured correspondingly and located in the same layer as the sensor element. The advantage of this invention is that in the same process step of applying the magnetoresistive layer for the magnetic flux sensor, a portion of this layer can be reserved for incorporation into the bias current circuit, so that in one process step, a magnetoresistive layer with an associated setting of a bias resistor can be realized. Thus, the magnetic flux sensor according to the invention realizes a simpler setting of the working point of the bias field. |
