Method for patterning a magnetoresistive sensor
    1.
    发明授权
    Method for patterning a magnetoresistive sensor 有权
    图案化磁阻传感器的方法

    公开(公告)号:US07765676B2

    公开(公告)日:2010-08-03

    申请号:US10993499

    申请日:2004-11-18

    IPC分类号: G11B5/187 B44C1/22

    摘要: A method for constructing a magnetoresistive sensor using an etch mask that is resistant to the material removal process used to define the sensor width and stripe height. The method may include the use of a Ta etch mask formed under a photoresist mask, and the use of an ion milling process to define the sensor. The etch mask remains substantially intact after performing the ion milling and therefore is readily removed by a later CMP process. The etch mask layer is also very resistant to high temperatures such as those used in a desired atomic layer deposition of alumina, which is used to deposit conformal layers of alumina around the sensor.

    摘要翻译: 一种用于构造使用耐蚀刻材料去除工艺的蚀刻掩模的磁阻传感器的方法,所述方法用于限定传感器宽度和条纹高度。 该方法可以包括使用形成在光致抗蚀剂掩模下的Ta蚀刻掩模,以及使用离子铣削工艺来限定传感器。 在执行离子研磨之后,蚀刻掩模基本上保持完整,因此通过稍后的CMP工艺容易地除去。 蚀刻掩模层也非常耐高温,例如用于期望的氧化铝原子层沉积中使用的那些,其用于在传感器周围沉积保形层的氧化铝。

    Method to fabricate side shields for a magnetic sensor
    2.
    发明授权
    Method to fabricate side shields for a magnetic sensor 失效
    制造磁性传感器侧面屏蔽的方法

    公开(公告)号:US07574791B2

    公开(公告)日:2009-08-18

    申请号:US11126508

    申请日:2005-05-10

    IPC分类号: G11B5/187

    摘要: A method for fabricating magnetic side shields for an MR sensor of a magnetic head. Following the deposition of MR sensor layers, a first DLC layer is deposited. Milling mask layers are then deposited, and outer portions of the milling mask layers are removed such that a remaining central portion of the milling mask layers is formed having straight sidewalls and no undercuts. Outer portions of the sensor layers are then removed such that a relatively thick remaining central portion of the milling mask resides above the remaining sensor layers. A thin electrical insulation layer is deposited, followed by the deposition of magnetic side shields. A second DLC layer is deposited and the remaining mask layers are then removed utilizing a chemical mechanical polishing (CMP) liftoff step. Thereafter, the first DLC layer and the second DLC layer are removed and a second magnetic shield layer is then fabricated thereabove.

    摘要翻译: 一种用于制造用于磁头的MR传感器的磁性侧屏蔽的方法。 在MR传感器层的沉积之后,沉积第一DLC层。 然后沉积铣削掩模层,并且去除铣削掩模层的外部,使得铣削掩模层的剩余中心部分形成为具有直的侧壁并且没有底切。 然后去除传感器层的外部部分,使得铣削掩模的相对较厚的剩余中心部分位于剩余传感器层的上方。 沉积薄的电绝缘层,随后沉积磁性侧屏蔽层。 沉积第二DLC层,然后利用化学机械抛光(CMP)剥离步骤除去剩余的掩模层。 此后,去除第一DLC层和第二DLC层,然后在其上制造第二磁屏蔽层。

    Planarization methods for patterned media disks
    3.
    发明申请
    Planarization methods for patterned media disks 有权
    图案化媒体盘的平面化方法

    公开(公告)号:US20080141523A1

    公开(公告)日:2008-06-19

    申请号:US11641237

    申请日:2006-12-18

    IPC分类号: B05D5/12 G11B5/127

    摘要: A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.

    摘要翻译: 提供了一种用于在具有第一近似平面的基板中形成多个磁性材料区域的方法。 该方法包括以下步骤:在衬底的第一表面中制造突起,在第一表面上沉积磁性材料,使得突起的顶部被磁性材料覆盖,并将填充材料沉积在如此制造的衬底上。 然后可以例如通过化学机械抛光将填料材料平坦化。 在替代实施例中,磁性材料沉积在基底上,并且其部分被去除,留下材料岛。 然后沉积填料,其可以被平坦化。

    Planarization methods for patterned media disks
    4.
    发明授权
    Planarization methods for patterned media disks 失效
    图案化媒体盘的平面化方法

    公开(公告)号:US08474128B2

    公开(公告)日:2013-07-02

    申请号:US13082189

    申请日:2011-04-07

    IPC分类号: G11B5/127 H04R31/00

    摘要: A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.

    摘要翻译: 提供了一种用于在具有第一近似平面的基板中形成多个磁性材料区域的方法。 该方法包括以下步骤:在基板的第一表面中制造突起,在第一表面上沉积磁性材料,使得凸起的顶部被磁性材料覆盖,并将填充材料沉积在如此制造的基板上。 然后可以例如通过化学机械抛光将填料材料平坦化。 在替代实施例中,磁性材料沉积在基底上,并且其部分被去除,留下材料岛。 然后沉积填料,其可以被平坦化。

    Planarization methods for patterned media disks
    5.
    发明授权
    Planarization methods for patterned media disks 有权
    图案化媒体盘的平面化方法

    公开(公告)号:US07941911B2

    公开(公告)日:2011-05-17

    申请号:US11641237

    申请日:2006-12-18

    IPC分类号: G11B5/127 H04R31/00

    摘要: A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.

    摘要翻译: 提供了一种用于在具有第一近似平面的基板中形成多个磁性材料区域的方法。 该方法包括以下步骤:在衬底的第一表面中制造突起,在第一表面上沉积磁性材料,使得突起的顶部被磁性材料覆盖,并将填充材料沉积在如此制造的衬底上。 然后可以例如通过化学机械抛光将填料材料平坦化。 在替代实施例中,磁性材料沉积在基底上,并且其部分被去除,留下材料岛。 然后沉积填料,其可以被平坦化。

    Planarization Methods For Patterned Media Disks
    6.
    发明申请
    Planarization Methods For Patterned Media Disks 失效
    图案化媒体盘的平面化方法

    公开(公告)号:US20110258841A1

    公开(公告)日:2011-10-27

    申请号:US13082189

    申请日:2011-04-07

    IPC分类号: G11B5/127

    摘要: A method is provided for forming a plurality of regions of magnetic material in a substrate having a first approximately planar surface. The method comprises the steps of fabricating projections in the first surface of the substrate, depositing onto the first surface a magnetic material in such a way that the tops of the projections are covered with magnetic material, and depositing filler material atop the substrate so produced. The filler material may then be planarized, for example by chemical-mechanical polishing. In an alternative embodiment magnetic material is deposited on a substrate and portions of it are removed, leaving islands of material. Filler material is then deposited, which may be planarized.

    摘要翻译: 提供了一种用于在具有第一近似平面的基板中形成多个磁性材料区域的方法。 该方法包括以下步骤:在衬底的第一表面中制造突起,在第一表面上沉积磁性材料,使得突起的顶部被磁性材料覆盖,并将填充材料沉积在如此制造的衬底上。 然后可以例如通过化学机械抛光将填料材料平坦化。 在替代实施例中,磁性材料沉积在基底上,并且其部分被去除,留下材料岛。 然后沉积填料,其可以被平坦化。