Thin film electromagnetic transformer

Abstract

Abstract PURPOSE:To enable signals to be exchanged efficiently by forming a recess at which the end face of a magnetic substance layer is exposed in a position corresponding to the central part of each coil of the magnetic substance layer. CONSTITUTION:Recesses 15 and 15 are formed respectively at the central parts of individual coils 13 and 14, and since their side faces are the end faces of a magnetic film 12, magnetic fluxes flow out easily from the inner end faces of the recesses 15 and 15. In this case, if a magnetic pole arises in the direction along the face of the magnetic substance, the reverse magnetic field is much smaller as compared with the case that the magnetic pole arises in the direction crossing the face of the magnetic substance at right angles; therefore, the magnetic flux flows favorably. Accordingly, it can let flow the magnetic flux capable of obtaining signal strength sufficient for lead/light operation by a magnetic head. Hereby, the exchange of signals can be done efficiently.

Inventors

• 👤 Arichika Ishida
• 👤 有親 石田

Bibliographic Details