Patent ID: 11099244

Abstract:
A semiconductor device includes a semiconductor substrate 10 of a first conductivity type, a vertical Hall element 100 provided on the semiconductor substrate 10, and an excitation conductor 200 provided directly above the vertical Hall element 100 with an intermediation of an insulating film 30. The vertical Hall element 100 includes a semiconductor layer 101 of a second conductivity type provided on the semiconductor substrate 10, and a plurality of electrodes 111 through 115 each constituted from a high-concentration second conductivity type impurity region and provided on the surface of the semiconductor layer 101 along a straight line. A ratio WC/WH between a width WC of the excitation conductor 200 and a width WH of each of the plurality of electrodes 111 through 115 satisfies 0.3≤WC/WH≤1.0.