PURPOSE: To make up the unsatisfactory point in the effect of a shunt film by providing a pair of conductors to the end of a permanent magnet film so that electric current can be passed in the permanent magnet film is impressing the magnetic field generated by the current to a magnetoresistance effect element.
CONSTITUTION: A pair of the conductors 3 for passing the current to the permanent magnet film 2 consisting of Al, Mo, etc. is formed to both ends of the permanent magnet film 2 consisting of a hard magnetic material, for example, Co-Pt, Co-Cr, etc. The element 4 consists of a thin film of a soft magnetic material such as Ni-Fe, Ni-Co or Ni-Fe-Co having a magnetoresistance effect. The film 2 is disposed via an insulating layer 6 consisting of SiO2, Al2O3, etc. A thin conductor film 5 consisting of, for example, Ti, Mo, etc. having the specific resistance approximately equal to the specific resistance of the element 4 is laminated on the side face of the element 4 facing the film 2.
KITADA MASAHIRO
SHIMIZU NOBORU
KAMO YOSHIHISA
TSUCHIYA HIROSHI
KATSUMATA MASAO
