Base conducting layer beneath graphite layer of ceramic cathode for use with cathodic arc deposition

    公开(公告)号:US11270872B2

    公开(公告)日:2022-03-08

    申请号:US16583121

    申请日:2019-09-25

    摘要: Cathode structures are disclosed for use with pulsed cathodic arc deposition systems for forming diamond-like carbon (DLC) films on devices, such as on the sliders of hard disk drives. In illustrative examples, a base layer composed of an electrically- and thermally-conducting material is provided between the ceramic substrate of the cathode and a graphitic paint outer coating, where the base layer is a silver-filled coating that adheres to the ceramic rod and the graphitic paint. The base layer is provided, in some examples, to achieve and maintain a relatively low resistance (and hence a relatively high conductivity) within the cathode structure during pulsed arc deposition to avoid issues that can result from a loss of conductivity within the graphitic paint over time as deposition proceeds. Examples of suitable base material compounds are described herein where, e.g., the base layer can withstand temperatures of 1700° F. (927° C.).

    Magnetic recording medium fabrication method
    77.
    发明授权
    Magnetic recording medium fabrication method 有权
    磁记录介质制作方法

    公开(公告)号:US09147422B2

    公开(公告)日:2015-09-29

    申请号:US14217637

    申请日:2014-03-18

    申请人: SHOWA DENKO K.K.

    IPC分类号: G11B5/84 G11B5/85

    CPC分类号: G11B5/8408 G11B5/85

    摘要: A method of fabricating a magnetic recording medium by sequentially forming a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body, includes forming the lubricant by depositing a first lubricant on the stacked body after forming the protection layer, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere, and depositing a second lubricant on the stacked body after depositing the first lubricant, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere. The first lubricant has a lower molecular mass and a higher chemical polarity than those of the second lubricant.

    摘要翻译: 通过在层叠体上依次形成磁记录层,保护层和润滑层来制造磁记录介质的方法包括:在形成保护层之后,通过蒸镀形成保护层,在第一润滑剂上形成润滑剂 在不将层叠体暴露在大气中的同时润滑沉积,以及在沉积第一种润滑剂之后,通过气相润滑沉积而在层叠体上沉积第二种润滑剂,而不将堆叠体暴露在大气中。 第一润滑剂具有比第二润滑剂低的分子量和更高的化学极性。

    Forming oriented film for magnetic recording material
    78.
    发明授权
    Forming oriented film for magnetic recording material 有权
    磁记录材料成型取向膜

    公开(公告)号:US09034157B2

    公开(公告)日:2015-05-19

    申请号:US13618633

    申请日:2012-09-14

    摘要: An apparatus and associated method for reorienting the magnetic anisotropy of magnetic recording discs. A pallet that is moveable along a path of travel is also sized to selectively hold either a first magnetic recording disc of a first size or a second magnetic recording disc of a second size different than the first size. A first processing chamber in the path of travel is adapted for forming a soft underlayer (SUL) of magnetic material with non-radially oriented magnetic anisotropy on a substrate corresponding to one of the first and second magnetic recording discs. A second processing chamber in the path of travel downstream of the first processing chamber is adapted for selectively re-orienting the SUL's magnetic anisotropy via a magnetic source emanating a first magnetic field if the substrate corresponds to the first magnetic recording disc and emanating a different second magnetic field if the substrate corresponds to the second magnetic recording disc.

    摘要翻译: 一种用于重新定向磁记录盘的磁各向异性的装置和相关方法。 沿着行进路径可移动的托盘的大小还可以选择性地保持与第一尺寸不同的第二尺寸的第一磁记录盘或第二磁记录盘。 移动路径中的第一处理室适于在对应于第一和第二磁记录盘之一的基板上形成具有非径向取向的磁各向异性的磁性材料的软底层(SUL)。 在第一处理室下游的行进路径中的第二处理室适于通过发射第一磁场的磁源选择性地重新定向SUL的磁各向异性,如果衬底对应于第一磁记录盘并发出不同的第二 如果衬底对应于第二磁记录盘,磁场。

    RESIST FORTIFICATION FOR MAGNETIC MEDIA PATTERNING
    79.
    发明申请
    RESIST FORTIFICATION FOR MAGNETIC MEDIA PATTERNING 有权
    用于磁介质图形的电阻强化

    公开(公告)号:US20140147700A1

    公开(公告)日:2014-05-29

    申请号:US14170009

    申请日:2014-01-31

    IPC分类号: G11B5/74 G11B5/85

    CPC分类号: G11B5/85 G11B5/743 G11B5/855

    摘要: A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.

    摘要翻译: 提供了一种形成磁性介质基板的方法和装置。 在具有磁敏感层的基板上形成图案化的抗蚀剂层。 在图案化的抗蚀剂层上形成保形层,以防止后续处理期间图案的劣化。 对衬底进行能量处理,其中能量物质根据形成在图案化抗蚀剂中的图案穿透图案化抗蚀剂和保形层的部分,撞击磁敏感层并改变其磁性。 然后去除图案化的抗蚀剂和共形保护层,留下具有基本上不变的形貌的磁性质图案的磁性基底。