| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of evaluating a magnetoresistive head which detects a magnetoresistive head which cannot be detected completely by a conventional evaluating method and in which magnetization state is unstable. SOLUTION: The evaluating method of the magnetoresistive head includes steps of: applying a magnetic fields to the magnetoresistive head in parallel to an air bearing surface of the magnetoresistive head at a prescribed temperature, obtaining an image of the air bearing surface in a first magnetized state by using the Kerr effect, applying an external stress to the magnetoresistive head, obtaining an image of the air bearing surface in a second magnetized state by using the Kerr effect, and evaluating characteristics of the magnetoresistive head on the basis of the images of the first magnetized state and the second magnetized state or by comparing the images of the first magnetized state and the second magnetized state. COPYRIGHT: (C)2009,JPO&INPIT
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