A hybrid memory device combines a ferromagnetic layer and a Hall Effect device. The ferromagnetic layer is magnetically coupled to a portion of a Hall plate, and when such plate is appropriately biased, a Hall Effect signal can be generated whose value is directly related to the magnetization state of...http://www.google.fr/patents/US6423553?utm_source=gb-gplus-shareBrevet US6423553 - Method of making a magnetoelectronic device