Patent ID: 9594130
Date: 2017-03-14
CPC Classifications: G01R

Claim:
1. A magnetic sensor device comprising: a magnetic sensor element which is formed on a surface of a substrate and which detects intensity of a magnetic field in a detection axis direction, the detection axis direction being a direction parallel with the surface of the substrate, first and second surfaces parallel with the detection axis direction, a first magnetic field attenuation unit which is arranged in the first surface, and which hides the magnetic sensor element in plan view, and a second magnetic field attenuation unit which is arranged in the second surface, and which is opposed to the first magnetic field attenuation unit with the magnetic sensor element therebetween, wherein no magnetic attenuation units are arranged in the detection axis direction, and the first magnetic attenuation unit is arranged between a conductor through which a current to be measured flows, and the magnetic sensor element.