Patent ID: 8736262

Claim:
An integrated magnetic sensor comprising: a body having a main face and including a first substrate of semiconductor material; a first Hall cell integrated in the first substrate; a first trench formed in the body and delimited by lateral surface portions extending transversely to the main face, the first trench having a depth in a direction substantially perpendicular to the main face and a width in a direction substantially parallel to the main face, between the lateral surface portions, the width being smaller than the depth; and a first concentrator of ferromagnetic material, including first and second ferromagnetic regions arranged at a mutual distance from each other and extending along the lateral surface portions of the first trench toward the first Hall cell, wherein the first Hall cell has an area in a direction parallel to the main face of the body and the ferromagnetic regions extended within a right prism having as a base the area of the first Hall cell.