METHOD OF ORIENTING AN AXIS OF MAGNETIZATION OF A FIRST MAGNETIC ELEMENT WITH RESPECT TO A SECOND MAGNETIC ELEMENT, SEMIMANUFACTURE FOR OBTAINING A SENSOR, SENSOR FOR MEASURING A MAGNETIC FIELD

The semi-finished article for obtaining a sensor for measuring a magnetic field comprises a substrate (1) and a first magnetic element (2), a second magnetic element (3), a third magnetic element (4), and a fourth magnetic element (5) in a bridge configuration. Each of the magnetic elements contains a first magnetic layer (10) having an axis of magnetization (11), the axes of magnetization (11) of the first magnetic layers of the elements (2, 3) in the first bridge portion (8) as well as the axes of magnetization of the elements (4, 5) in the second bridge portion (9) being oriented so as to extend in opposite directions. Close to each of the contacts (6, 7), the axis of magnetization (11) of the element of the first bridge portion (8) is oppositely oriented with respect to the element of the second bridge portion (9). Magnetic flux-concentrating means (14) are present for the first magnetic element (2) of the first bridge portion (8) and for the element of the second bridge portion (9) having the same orientation of the axis of magnetization (11) as the first element (2). A method of orienting the axis of magnetization of a first magnetic element (2) with respect to a second magnetic element (3), wherein the first element (2) and the second element (3) are present on a substrate (1), and each of the magnetic elements has a first magnetic layer (10) with an axis of magnetization (11), said method including the step of depositing a pattern of flux-concentrating means (20) close to the first magnetic element (2) and subsequently orienting the axis of magnetization (11) of said first magnetic element (2) in an applied magnetic field. The semi-finished article for obtaining a sensor for measuring a magnetic field comprises a substrate (1), a first magnetic element (2), a second magnetic element (3), a third magnetic element (4) and a fourth magnetic element (5) on the substrate (1) in a bridge configuration comprising, between a first contact (6) and a second contact (7), a first bridge portion (8) wherein the first element (2) and the second element (3) are electrically connected in series and a second bridge portion (9) wherein the third element (4) and the fourth element (5) are electrically connected in series. Each of the magnetic elements contains a first magnetic layer (10) having an axis of magnetization (11), the axes of magnetization (11) of the first magnetic layers of the elements (2, 3) in the first bridge portion (8) as well as the axes of magnet