| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic sensor device in which a magnetic field generated in a magnetic field coil can be efficiently applied to a magnetoresistance effect element.SOLUTION: In the magnetic sensor device, a magnetoresistance effect element, a pair of magnetic bodies which are arranged so that the magnetoresistance effect element is interposed between them, and a magnetic field coil which forms a magnetic field for the magnetoresistance effect element are formed on a substrate. The magnetic coil is configured to include conductor patterns arranged on a lower magnetic field coil layer and an upper magnetic field coil which are laminated with the magnetic bodies therebetween, and the upper magnetic field coil layer is close to a formation surface of the lower magnetic field coil layer, in an arrangement position of the magnetoresistance effect element. |
