| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic sensor using a crossing-type MI element having such a size able to be incorporated in a portable terminal and to reduce the size of the magnetic sensor without lowering of detecting sensitivity and detecting accuracy. SOLUTION: This invention relates to the arrangement and structure of upper layer and lower layer crossover magnetic anisotropic films 2, 3 in the case of using the lower layer crossover magnetic anisotropic film 2 and the upper layer crossover magnetic anisotropic film 3 in a two-direction detecting element and particularly to the superior two-direction detecting crossover MI element having a small arrangement area without lowering of accuracy of angle and detecting accuracy due to position shifting and the magnetic sensor using it. To be concrete, the lower layer crossover magnetic anisotropic film 2 and the upper layer crossover magnetic anisotropic film 3 are arranged through an insulating film 4 in a designated area such as a square area 6 or an elongated area like an X-shape in diagonal lines. By this structure, the magnetic impedance change rate showing the detecting sensitivity similar to that of the conventional one is shown, and reduced in size in each side by 30% as compared with the conventional one. Unlike the conventional one, lowering of detecting accuracy is not caused.
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