| 摘要 |
PROBLEM TO BE SOLVED: To provide a suitable magnetic sensor which has high accuracy and can be miniaturized, wherein a positioning error between a magnetoresistance element and a permanent magnet is eliminated by a simple and low-cost method. SOLUTION: In a magnetic sensor which detects magnetic field change produced by the relative movement between a detecting object and the sensor, the magnetic sensor includes a substrate, a magnetoresistance element formed on a surface of the substrate, and a magnetic body formed on the surface opposite to the surface on which the magnetoresistance element on the substrate is formed. The magnetic body is constituted of a mixture of magnetic powder and a resin, wherein the mixture is cast into a recessed part of the substrate to be cured and is magnetized. COPYRIGHT: (C)2010,JPO&INPIT |
