Method and apparatus for testing tunnel magnetoresistive effect element
    4.
    发明授权
    Method and apparatus for testing tunnel magnetoresistive effect element 有权
    隧道磁阻效应元件测试方法及装置

    公开(公告)号:US07236392B2

    公开(公告)日:2007-06-26

    申请号:US11101468

    申请日:2005-04-08

    IPC分类号: G11B5/455

    摘要: Testing a TMR element includes a step of measuring initially a resistance value of the TMR element to provide the measured resistance value as a first resistance value, a step of measuring a resistance value of the TMR element after continuously feeding a current through the TMR element from a anti-substrate side to a substrate side for a predetermined period of time, to provide the measured resistance value as a second resistance value, and a step of evaluating the TMR element by comparing the first resistance value and the second resistance value with each other.

    摘要翻译: 测试TMR元件包括首先测量TMR元件的电阻值以提供测量的电阻值作为第一电阻值的步骤,在连续馈送通过TMR元件的电流之后测量TMR元件的电阻值的步骤 将基板侧的反基板侧保持规定时间,将测定的电阻值作为第二电阻值提供,以及通过将第一电阻值与第二电阻值进行比较来对TMR元件进行比较的步骤 。

    Method and apparatus for testing tunnel magnetoresistive effect element
    6.
    发明授权
    Method and apparatus for testing tunnel magnetoresistive effect element 有权
    隧道磁阻效应元件测试方法及装置

    公开(公告)号:US07227772B2

    公开(公告)日:2007-06-05

    申请号:US11070237

    申请日:2005-03-03

    IPC分类号: G11B5/455

    摘要: Testing a TMR element includes a step of measuring initially a resistance value of the TMR element to provide the measured resistance value as a first resistance value, a step of measuring a resistance value of the TMR element after continuously feeding a current through the TMR element for a predetermined period of time, to provide the measured resistance value as a second resistance value, and a step of evaluating the TMR element depending upon a degree of change in resistance of the TMR element. The degree of change in resistance is determined based upon the first resistance value and the second resistance value.

    摘要翻译: 测试TMR元件包括首先测量TMR元件的电阻值以提供测量的电阻值作为第一电阻值的步骤,在连续馈送电流通过TMR元件之后测量TMR元件的电阻值的步骤,用于 提供测量的电阻值作为第二电阻值的预定时间段,以及根据TMR元件的电阻变化程度来评估TMR元件的步骤。 基于第一电阻值和第二电阻值来确定电阻的变化程度。