| 摘要 |
PROBLEM TO BE SOLVED: To obtain a magnetic sensor unit in which the deviations or the inclinations of magnetic resistance elements 11, 12 and a permanent magnet 21 are low and which has substantially equivalent electric resistance values of magnetic resistance elements 11, 12, by imparting equivalent magnetic fields to both of a pair of two magnetic resistance elements 11, 12; and to intend to reduce the changing amount of a mid-point voltage due ot a temperature change. SOLUTION: Many magnetic resistance elements 11, 12 are formed on an unmagnetized permanent magnet material 111, and are cut together with the permanent magnet material 111 accurately by a dicing machine or the like. The magnetic resistance elements divided into a plurality are individually taken out, and the permanent magnet material is magnetized to a permanent magnet. The center of the magnetized permanent magnet material substantially coincides with that of the pair of two magnetic resistance elements 11, 12, and equivalent magnetic fluxes can be imparted to both of the pair of two magnetic resistance elements 11, 12. COPYRIGHT: (C)2005,JPO&NCIPI
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