Magneto-impedance effect element and method of manufacturing the same

摘要

A magneto-impedance effect element (M) includes an electrode (3) for supplying a driving AC current, and a magnetic field sensing portion (2) formed by using a soft magnetic thin film or ribbon, wherein the ratio of the element width to the element length of the magnetic field sensing portion, i.e. the aspect ratio W/L, is set to 0.1 or less so that the magnetic field sensitivity to an external magnetic field can be improved, and the magnitude of a necessary bias magnetic field can be decreased. <IMAGE>