| 摘要 |
<p>PURPOSE:To obtain a current detector with high magnetic efficiency by allowing a ferromagnetic material thin film piece to operate as a part of a yoke in the case of arranging and facing one surface of a substrate at an interval. CONSTITUTION:A ferromagnetic material magnetoresistance element pattern 1 and rectangular thin film yokes 2 and 2' are formed on the substrate 5 by vapor deposition and the surface is covered with a protection film 7. Parts of the planes of open parts 31 and 32 of a thin plate type external yoke 3 provided with winding 4 are superposed on the open parts 201 and 201' of the thin film magnetic yokes 2 and 2' on the opposite sides from magnetoresistance elements 11 and 12 across the protection film 7. A permanent magnet for bias magnetic field application is stuck on the reverse surface of the substrate 5 opposite the magnetoresistance elements. The magnetoresistance element pattern 1 is composed of magneto-resistance elements 11, 12, 13, and 14 which are connected mutually.</p> |
