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    • 41. 发明授权
    • Magnetic head having heat sink structure
    • 具有散热片结构的磁头
    • US07193817B2
    • 2007-03-20
    • US10791001
    • 2004-03-01
    • Jeffrey S. Lille
    • Jeffrey S. Lille
    • G11B5/40G11B5/31
    • G11B5/3133
    • A magnetic head having a heat sink structure that is disposed proximate the induction coil to draw heat away from sensitive components of the head. The heat sink is fabricated above the second magnetic pole, and is therefore fabricated subsequent to the fabrication of the more delicate components of the magnetic head. In a preferred embodiment, the heat sink is fabricated photolithographically in the same process steps in which the electrical lead to the center tap of the induction coil is fabricated. The only difference in the magnetic head fabrication process is the modification of the photolithographic mask that is used to create the electroplating trench in which the electrical lead is electroplated, and the change to the mask involves the creation of a second opening within the mask for the creation of an electroplating trench at the location of the heat sink.
    • 具有散热结构的磁头,其设置在感应线圈附近以将热量从头部的敏感部件吸走。 散热器制造在第二磁极之上,因此在制造磁头的更精细的部件之后制造散热器。 在优选实施例中,在与制造感应线圈的中心抽头的电导线相同的工艺步骤中光刻地制造散热器。 磁头制造工艺中的唯一区别是用于产生其中电引线被电镀的电镀沟槽的光刻掩模的修改,并且对掩模的改变涉及在掩模内创建第二开口 在散热器的位置创建电镀沟槽。
    • 42. 发明授权
    • Magnetic pole tip for perpendicular magnetic recording
    • 磁极尖用于垂直磁记录
    • US07139153B2
    • 2006-11-21
    • US10785236
    • 2004-02-23
    • Richard HsiaoWipul Pemsiri JayaekaraJeffrey S. Lille
    • Richard HsiaoWipul Pemsiri JayaekaraJeffrey S. Lille
    • G11B5/147
    • G11B5/1278Y10T29/49021
    • A method for forming a magnetic structure, such as a pole tip, includes forming a pole tip layer of magnetic material. A layer of polyimide precursor material is added above the pole tip layer and cured. A silicon-containing resist layer is added above the layer of polyimide precursor material and patterned. The resist layer is exposed to oxygen plasma for converting the resist into a glass-like material. Exposed portions of the cured polyimide precursor material are removed for exposing portions of the pole tip layer. The exposed portions of the pole tip layer are removed for forming a pole tip. Chemical mechanical polishing (CMP) can then be performed to remove any unwanted material remaining above the pole tip.
    • 用于形成诸如极尖的磁性结构的方法包括形成磁性材料的磁极尖端层。 将一层聚酰亚胺前体材料添加到极尖层上方并固化。 将含硅抗蚀剂层添加到聚酰亚胺前体材料层上方并图案化。 将抗蚀剂层暴露于氧等离子体以将抗蚀剂转化为玻璃状材料。 去除固化的聚酰亚胺前体材料的暴露部分以暴露极尖层的部分。 去除极尖端部的暴露部分以形成极尖。 然后可以进行化学机械抛光(CMP)以除去残留在极尖顶部的任何不需要的材料。
    • 46. 发明授权
    • Magnetic head having media heating device that is electrically connected to magnetic pole piece
    • 具有与磁极片电连接的介质加热装置的磁头
    • US06940693B2
    • 2005-09-06
    • US10675065
    • 2003-09-29
    • Jeffrey S. LilleHugo Alberto Emilio Santini
    • Jeffrey S. LilleHugo Alberto Emilio Santini
    • G11B5/31G11B5/147
    • G11B5/3116
    • An embodiment of a magnetic head of the present invention includes a media heating device that is fabricated within the magnetic head structure following the fabrication of the read head element of the magnetic head. The media heating device is preferably fabricated between the first and second magnetic pole layers and close to the ABS surface of the head. The heating device includes electrical leads and an electrically resistive heating element that is preferably comprised of TaSiN, NiCr or NiFe, and in the present invention one or both of the magnetic poles are utilized as an electrical lead of the heating device. The heating device serves to heat the magnetic media immediately prior to the passage of the magnetic media beneath the pole tip, which lowers the localized coercivity of the media and facilitates the writing of data to the media by the write head element of the magnetic head.
    • 本发明的磁头的一个实施例包括在制造磁头读头元件之后制造在磁头结构内的介质加热装置。 介质加热装置优选地制造在第一和第二磁极层之间并且靠近头部的ABS表面。 加热装置包括电引线和优选由TaSiN,NiCr或NiFe组成的电阻加热元件,并且在本发明中,一个或两个磁极用作加热装置的电引线。 加热装置用于在磁性介质在磁极尖端之下通过之前立即加热磁性介质,这降低了介质的局部矫顽力,并且便于通过磁头的写头元件将数据写入介质。
    • 47. 发明授权
    • Enhanced silicon and ceramic magnetoresistive read/write head and a method for producing the same
    • 增强型硅和陶瓷磁阻读写头及其制造方法
    • US06587314B1
    • 2003-07-01
    • US09572025
    • 2000-05-16
    • Jeffrey S. Lille
    • Jeffrey S. Lille
    • G11B539
    • G11B5/6005G11B5/39
    • An enhanced silicon and ceramic magnetoresistive read/write head and method for making the same is disclosed. The present invention provides reliable chemical mechanical polish etch stop by etching deep trenches into the silicon at the surrounding edges of the magnetic write and read device and filling it with a refractory metal (e.g. tungsten) so that the silicon wafer thickness will not significantly add to the length of the ABS nor to the gram load of the slider. An imbedded deformable pad will allow these bonded heads to have a high average fly height and reduce to near contact recording when reading and writing through an applied potential across a deformable pad in the silicon. The epoxy bond of the silicon to the ceramic slider consists of polymethyl methracrylate (PMMA) which can be spun on a wafer or a row of wafers with nanometer thickness repeatability and using low temperatures, i.e.,
    • 公开了一种增强的硅和陶瓷磁阻读/写头及其制造方法。 本发明通过在磁性写入和读取装置的周围边缘处蚀刻深入硅中的硅,并用难熔金属(例如钨)填充硅,从而提供可靠的化学机械抛光蚀刻停止,使得硅晶片厚度将不会显着增加 ABS的长度以及滑块的克负荷。 嵌入的可变形焊盘将允许这些焊接头具有高的平均飞行高度,并且通过跨越硅中的可变形焊盘的施加电位进行读取和写入时,可以减少到近接触记录。 硅与陶瓷滑块的环氧键由聚甲基丙烯酸甲酯(PMMA)组成,其可以在具有纳米厚度可重复性的晶片或一排晶片上旋转,并且使用低温,即<200℃
    • 48. 发明授权
    • Patterned media with structured PES servo segments encoding local track position
    • 带结构化PES伺服段的图案化媒体,编码本地轨道位置
    • US08363348B2
    • 2013-01-29
    • US12924880
    • 2010-10-07
    • Toshiki HiranoJeffrey S. LilleTetsuo Semba
    • Toshiki HiranoJeffrey S. LilleTetsuo Semba
    • G11B5/09G11B5/596
    • G11B5/59655
    • Patterned magnetic media are described in which the servo sectors include at least two PES offset segments that can be used for the position error signal (PES) and identification of local track position. The two PES offset segments deviate from the track centerline in opposite directions. The lengths of the offset PES offset segments are systematically varied in a repeating pattern to provide a unique servo signal pattern for each track in a local group of adjacent tracks. The locally unique servo sector pattern allows the servo system to use the pattern of the signals generated from the offset and non-offset segments to determine the local track position, which is similar to information provided by the low order Gray code bits in prior art designs. Therefore, the number of bits in the track ID code can be reduced.
    • 描述了图形磁介质,其中伺服扇区包括可用于位置误差信号(PES)和识别本地轨道位置的至少两个PES偏移段。 两个PES偏移片段在相反方向偏离轨道中心线。 偏移PES偏移段的长度以重复模式系统地改变,以为本地相邻轨道组中的每个轨道提供唯一的伺服信号模式。 本地唯一的伺服扇区模式允许伺服系统使用从偏移和非偏移段产生的信号的模式来确定本地轨道位置,其类似于现有技术设计中的低阶格雷码位提供的信息 。 因此,可以减少轨道ID码中的比特数。
    • 50. 发明申请
    • Patterned media with structured PES servo segments encoding local track position
    • 带结构化PES伺服段的图案化媒体,编码本地轨道位置
    • US20120087037A1
    • 2012-04-12
    • US12924880
    • 2010-10-07
    • Toshiki HiranoJeffrey S. LilleTetsuo Semba
    • Toshiki HiranoJeffrey S. LilleTetsuo Semba
    • G11B5/596
    • G11B5/59655
    • Patterned magnetic media are described in which the servo sectors include at least two PES offset segments that can be used for the position error signal (PES) and identification of local track position. The two PES offset segments deviate from the track centerline in opposite directions. The lengths of the offset PES offset segments are systematically varied in a repeating pattern to provide a unique servo signal pattern for each track in a local group of adjacent tracks. The locally unique servo sector pattern allows the servo system to use the pattern of the signals generated from the offset and non-offset segments to determine the local track position, which is similar to information provided by the low order Gray code bits in prior art designs. Therefore, the number of bits in the track ID code can be reduced.
    • 描述了图形磁介质,其中伺服扇区包括可用于位置误差信号(PES)和识别本地轨道位置的至少两个PES偏移段。 两个PES偏移片段在相反方向偏离轨道中心线。 偏移PES偏移段的长度以重复模式系统地改变,以为本地相邻轨道组中的每个轨道提供唯一的伺服信号模式。 本地唯一的伺服扇区模式允许伺服系统使用从偏移和非偏移段产生的信号的模式来确定本地轨道位置,其类似于现有技术设计中的低阶格雷码位提供的信息 。 因此,可以减少轨道ID码中的比特数。