MAGNETIC SENSOR AND MAGNETIC DETECTING METHOD OF THE SAME

摘要

The present invention relates to a magnetic sensor and a magnetic detecting method. A first arrangement pattern includes: a first magnetic detection unit (201) including a magnetic sensitivity material (201a) and a magnetic convergence material (201b) having a length different from a length of the magnetic sensitivity unit on a substrate, and being arranged to be parallel to the substrate and arranged horizontally so that a median line (Ma) passing through a midpoint of the magnetic sensitivity material in a longitudinal direction and a median line (Mb) of the magnetic convergence material in the longitudinal direction do not cross with each other; a second magnetic detection unit (202) having the structure same as the structure of the first magnetic detection unit; and a connecting unit electrically connecting the magnetic sensitivity material of the first magnetic detection unit in series with a magnetic sensitivity material of the second magnetic detection unit.

主权项

1. A magnetic sensor, comprising a first structure including a first arrangement pattern and a third arrangement pattern, capable of detecting a magnetic field in an arbitrary axis direction parallel to a plane of a substrate,
wherein the first arrangement pattern includes: a first magnetic detection unit including a quadrangular magnetic sensitivity material and a quadrangular magnetic convergence material having a length different from a length of the magnetic sensitivity unit on the substrate, and arranged parallel to the substrate and arranged horizontally so that a median line passing through a midpoint of the magnetic sensitivity material in a longitudinal direction and a median line of the magnetic convergence material in the longitudinal direction do not cross with each other, a second magnetic detection unit having a structure same as a structure of the first magnetic detection unit; and a connecting unit electrically connecting the magnetic sensitivity material of the first magnetic detection unit in series with the magnetic sensitivity material of the second magnetic detection unit, wherein both of the magnetic sensitivity material of the first magnetic detection unit and the magnetic sensitivity material of the second magnetic detection unit are arranged in a positional relationship of point symmetry to be sandwiched by the magnetic convergence material of the first magnetic detection unit and the magnetic convergence material of the second magnetic detection unit, and are arranged so that the first magnetic detection unit and the second magnetic detection unit do not overlap each other, and the third arrangement pattern is parallel to the plane of the substrate, and has a structure same as a structure of the first arrangement pattern, so that the magnetic convergence material and the magnetic sensitivity material form a symmetric positional relationship about a line parallel to a longitudinal direction of the magnetic convergence material of the first arrangement pattern and are arranged in an opposite manner and separated not to overlap each other.