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专利名称:Multi-directional field annealing of a thin-film electromagnetic read/write head
发明人:Springer, Gilbert D.申请号:EP843067申请日:19841005公开号:EP0139506A3公开日:19861112
专利附图:
摘要:A method of field annealing a thin-film electromagnetic read/write head formedof magnetic-field-responsive material having a known Curie temperature. Such a headalso includes an electric coil for operatively exciting the head. The method includes thesteps of heating the head to a temperature less than the Curie temperature, and thencooling the head while applying electric current to the coil sufficient to induce magneticflux in the head. The foregoing steps, properly applied, align the magnetic-field-responsive structure, such as magnetic domains in a soft magnetic material, in thedirection of operative flux flow in the head.
申请人:FERIX CORPORATION
代理人:Wombwell, Francis
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