How to orient the magnetization axis of the magnetic element relative to the first magnetic element of the second, semi-finished products, and a sensor for measuring a magnetic field to achieve a sensor

摘要

The method to orient the magnetization axis magnetic elements of the first (2) second magnetic element (3), the substrate magnetic element of the second magnetic element and the first (2) (3) ( is present in 1) above, which has a first magnetic layer having a (11) magnetization axis (10), said method, the magnetic elements of each magnetic first pattern magnetic flux concentrator means (20) be placed close to element (2), then, at an applied magnetic field, it comprises the step of orienting the magnetic element magnetization axes of the first (2) and (11). Magnetic element (2), the second magnetic element substrate (1), the first present as a bridge structure on a substrate (1) semi-finished product for implementing a sensor for measuring a magnetic field, (3) , (4), and the magnetic element 3, and a magnetic element of the fourth (5), between the second contact (6) contacts the first (7), the bridge structure includes a first Bridge first portion that is electrically connected in series second magnetic element the magnetic element 1 and (2) (3) and (8), the magnetic element and the third (4) magnetic element of the fourth ( I a bridge portion of the second, which are electrically connected in series 5) and (9). Magnetic elements each, the magnetization of the first magnetic layer (2, 3) the magnetic element comprises a magnetic layer having a first (11) magnetization axis (10), present in (8) bridging the first part (11) magnetization axis magnetic element is present bridging the second part (9) and (4,5) is oriented to extend in the opposite direction further axis. In the vicinity of the (6,7) of each contact, the magnetization axis of the magnetic element that is present in (8) bridge the first part (11), as opposed to a magnetic element that exists bridge portion of the second (9) is oriented. Flux concentrator means (14), the bridge portion having a second orientation axis of magnetization identical to (2) the magnetic element of the first (11) magnetic element of the first (8) bridge portion and the first (2) I exist for the magnetic element (9). To improve the sensitivity of the sensor, magnetic flux concentrator means (14) is provided for each magnetic element.