Method and apparatus for testing tunnel magnetoresistive effect element
    3.
    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
    5.
    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。

    Head suspension assembly
    10.
    发明授权
    Head suspension assembly 有权
    头悬挂总成

    公开(公告)号:US06972933B1

    公开(公告)日:2005-12-06

    申请号:US09419793

    申请日:1999-10-18

    IPC分类号: G11B5/39 G11B5/127

    CPC分类号: G11B5/3967

    摘要: A head suspension assembly includes a magnetic head slider with at least one thin-film magnetic head element, a support member for supporting the magnetic head slider at a top end portion thereof, a drive circuit electrically connected to the at least one thin-film magnetic head element, and at least two diode elements connected toward one direction in parallel with terminals which are connected across the at least one thin-film magnetic head element. Each of the diode elements has a turn-on voltage higher than the maximum output voltage of the at least one thin-film magnetic head element.

    摘要翻译: 头悬挂组件包括具有至少一个薄膜磁头元件的磁头滑动器,用于在其顶端部分处支撑磁头滑块的支撑构件,与至少一个薄膜磁性电连接的驱动电路 头元件和至少两个二极管元件连接,所述至少两个二极管元件与连接在所述至少一个薄膜磁头元件上的端子平行地朝向一个方向连接。 每个二极管元件具有高于至少一个薄膜磁头元件的最大输出电压的导通电压。