Method for shaping pole pieces of magnetic heads by chemical mechanical polishing
    3.
    发明申请
    Method for shaping pole pieces of magnetic heads by chemical mechanical polishing 失效
    通过化学机械抛光对磁头的极片进行成形的方法

    公开(公告)号:US20050160586A1

    公开(公告)日:2005-07-28

    申请号:US11090087

    申请日:2005-03-24

    摘要: A thin film magnetic head that includes an improved P2 pole tip/yoke interface. The process for forming the P2 pole tip/yoke interface includes a CMP polishing step that is performed on the surface of the wafer subsequent to the plating of the P2 pole tip. This CMP step utilizes a relatively soft polishing pad and an acidic polishing slurry which preferentially attacks the P2 pole tip material, such that the CMP step results in the recession of the upper surface of the P2 pole tip relative to the dielectric layer surrounding it, as well as the significant rounding of the upper edges of the dielectric trench in which the P2 pole tip is formed. Thereafter, when the yoke is plated onto the P2 pole tip the rounded upper edges of the dielectric trench result in a concave curved interface between the yoke and the P2 pole tip.

    摘要翻译: 一种薄膜磁头,包括改进的P 2极尖/磁轭接口。 用于形成P 2极尖/轭接口的工艺包括在P 2极尖的电镀之后在晶片的表面上执行的CMP抛光步骤。 该CMP步骤使用相对软的抛光垫和优先攻击P 2极尖材料的酸性抛光浆料,使得CMP步骤导致P 2极尖端的上表面相对于围绕其的介电层的凹陷 ,以及形成有P 2极尖的电介质沟槽的上边缘的显着的四舍五入。 此后,当轭被镀在P 2极尖上时,电介质沟槽的圆形上边缘导致轭和P 2极尖之间的凹形弯曲界面。

    Slider with underpass leads and methods of fabrication
    5.
    发明申请
    Slider with underpass leads and methods of fabrication 失效
    带有通道引线的滑块和制造方法

    公开(公告)号:US20050286169A1

    公开(公告)日:2005-12-29

    申请号:US10881196

    申请日:2004-06-29

    IPC分类号: G11B5/17 G11B5/39

    摘要: A slider is disclosed having a continuous coil including front coils, back coils, and a center tab, a write head including upper and lower poles which sandwich at least a portion of the front coils of the continuous coil, and at least one underpass lead, which passes under a portion of the back coils of the continuous coil to make electrical connection with the center tab of the continuous coil. Also disclosed are first and second variations of methods for fabricating the slider with underpass leads.

    摘要翻译: 公开了一种具有包括前线圈,后线圈和中心突片的连续线圈的滑块,包括夹持连续线圈的前线圈的至少一部分的上极和下极的写头以及至少一个地下通道引线, 其在连续线圈的后线圈的一部分下方通过以与连续线圈的中心突片电连接。 还公开了用于制造具有底通道引线的滑块的方法的第一和第二变型。