A magnetic detection element suitable for detecting a strength of an external magnetic field, has a magnetic thin film formed on a single non-magnetic substrate, a circuit that applies a high-frequency current to the magnetic thin film, and a spiral-type planar coil that is stacked on the magnetic thin...http://www.google.es/patents/US6861838?utm_source=gb-gplus-sharePatente US6861838 - Magnetic detection element utilizing magneto-impedance effect, production method of the element, and portable equipment using the element
Magnetic detection element utilizing magneto-impedance effect, production ...