Patent ID: 6791792
Filing Date: 2004-09-14
Classification: B82Y,G01R,G11B,G11C

Abstract:
A magnetic field sensor comprising:a film of a first electrode; a magnetic film showing an anomalous Hall effect, formed on said film of the first electrode; a film of a second electrode formed on said magnetic film; and third and fourth electrodes respectively connected to two regions provided so as to be apart from each other along a film plane direction of said magnetic film, wherein said magnetic film is one of a ferromagnetic film and an anti-magnetic film formed of a compound consisting of at least one type of element selected among iron, cobalt, nickel, manganese, vanadium and chromium, and a semiconductor material having a zincblende type structure, which contains at least one of gallium, arsenic, indium, antimony, silicon, germanium, tellurium, zinc oxide and titanium oxide.