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    • 62. 发明授权
    • Magnetic recording/reproducing using a patterned medium
    • 使用图案化介质的磁记录/再现
    • US08169729B2
    • 2012-05-01
    • US12635629
    • 2009-12-10
    • Hideki ZaitsuHiroyasu Tanabe
    • Hideki ZaitsuHiroyasu Tanabe
    • G11B5/09
    • G11B5/82B82Y10/00G11B5/012G11B5/59644G11B5/743G11B5/746
    • To synchronize a write/read frequency with media with high precision even when a write head is positioned in a different zone in a magnetic recording/reproducing device equipped with patterned media formed with writing hit patterns and having a zoned format function, a write head is positioned on a recording track in the vicinity of a boundary between zones, and the write head is positioned in a different zone from the zone in which the read head is positioned, the preamble pattern in the zone in which the read head is positioned is reproduced, a difference between frequencies of the preamble patterns of the zones is compensated to determine a write frequency used for writing data into a desired track, and then start timing for writing is determined based on a synchronization pattern obtained at the position of the read head. Other systems and methods are presented as well.
    • 为了使写入/读取频率与具有高精度的介质同步,即使当写入头位于配备有形成有写入命中图案且具有分区格式功能的图案化介质的磁记录/再现装置的不同区域中时,写入头是 位于区域之间的边界附近的记录轨道上,并且写入头位于与读取头所在的区域不同的区域中,读取头被定位的区域中的前导码图案被再现 补偿区域的前导码模式的频率之间的差异,以确定用于将数据写入期望的轨迹的写入频率,然后基于在读取头的位置处获得的同步模式来确定写入的开始定时。 还提出了其他系统和方法。
    • 65. 发明授权
    • Read/write structures for a three dimensional memory
    • 三维存储器的读/写结构
    • US08164940B2
    • 2012-04-24
    • US12638627
    • 2009-12-15
    • Ozhan OzatayBruce D. Terris
    • Ozhan OzatayBruce D. Terris
    • G11C11/063
    • H01L27/222G11C5/02G11C11/161G11C11/1659G11C11/1673G11C11/1675G11C19/0808
    • Read/write structures for three-dimensional memories are disclosed. In one embodiment, a three-dimensional memory includes a plurality of data storage layers fabricated in parallel on top of one another to form a three-dimensional structure. Each data storage layer is able to store bits of data in the form of magnetic domains. The memory further includes a column of write elements that is operable to write a column of magnetic domains to the first data storage layer representing a column of bits. The first data storage layer is patterned into a plurality of magnetic conductors aligned transverse to the column of write elements. A control system may inject spin-polarized current pulses in the magnetic conductors to transfer the column of magnetic domains laterally within the first data storage layer. The control system may transfer of the column of magnetic domains perpendicularly from the first data storage layer to another data storage layer.
    • 公开了用于三维存储器的读/写结构。 在一个实施例中,三维存储器包括彼此之上并行制造的多个数据存储层,以形成三维结构。 每个数据存储层能够存储磁畴形式的数据位。 存储器还包括写入元件列,其可操作以将磁畴列写入表示位列的第一数据存储层。 将第一数据存储层图案化成横向于写入元件列的多个磁性导体。 控制系统可以在磁导体中注入自旋极化电流脉冲,以在第一数据存储层内横向磁转移磁畴列。 控制系统可以将磁畴列从第一数据存储层垂直传送到另一个数据存储层。
    • 66. 发明授权
    • Method and apparatus for forming servo patterns on a magnetic-recording disk
    • 在磁记录盘上形成伺服图案的方法和装置
    • US08159773B2
    • 2012-04-17
    • US12504530
    • 2009-07-16
    • Xuchu ZhuMakoto TakaseTomoo OzakiWee Hei
    • Xuchu ZhuMakoto TakaseTomoo OzakiWee Hei
    • G11B5/02
    • G11B5/59633G11B5/59638G11B5/59672
    • A method for forming servo patterns on a magnetic-recording disk. The method includes moving a magnetic-recording head in an opposite direction to a pattern development direction, when there is a faulty servo pattern. The method also includes positioning a write element of the magnetic recording head on a track of the faulty servo pattern and forming a reserve servo pattern at a different circumferential location from that of the faulty servo pattern. The method includes moving the magnetic-recording head in the pattern development direction. The method further includes positioning the read element on the track of the faulty servo pattern and forming a new servo pattern in the pattern development direction at the circumferential location of the faulty servo pattern on a track disposed between the track of the faulty servo pattern and an outside diameter of the magnetic-recording disk, based on data read from the reserve servo pattern.
    • 一种用于在磁记录盘上形成伺服图案的方法。 该方法包括:当存在故障伺服模式时,将磁记录头沿与图案显影方向相反的方向移动。 该方法还包括将磁记录头的写元件定位在故障伺服模式的轨道上,并在与故障伺服模式不同的周向位置处形成备用伺服模式。 该方法包括沿图案显影方向移动磁记录头。 该方法还包括将读取的元件定位在故障伺服模式的轨道上,并且在位于故障伺服模式的轨迹之间的轨道上的故障伺服模式的圆周位置处的图案显影方向上形成新的伺服模式, 基于从备用伺服模式读取的数据,磁记录盘的外径。
    • 69. 发明授权
    • Method for manufacturing a magnetic write head
    • 磁写头制造方法
    • US08136228B2
    • 2012-03-20
    • US12343713
    • 2008-12-24
    • Aron PentekSue Siyang ZhangYi Zheng
    • Aron PentekSue Siyang ZhangYi Zheng
    • G11B5/127H04R31/00
    • G11B5/3163G11B5/112G11B5/1278G11B5/3116G11B5/3146G11B5/315Y10T29/49032Y10T29/49039Y10T29/49043Y10T29/49044Y10T29/49046Y10T29/49048Y10T29/49052
    • A method for manufacturing a magnetic write head that avoids the challenges associated with the formation of fence structures during write pole definition. A magnetic write pole material is deposited. A mask structure is deposited over the magnetic write pole material. The mask structure includes a first hard mask, a marker layer, a physically robust, inorganic RIEable image transfer layer, a second hard mask structure over the image transfer layer and a photoresist layer over the second hard mask. A reactive ion etching process can be used to transfer the image of the photoresist mask and second hard mask layer onto the image transfer layer. An ion milling is performed to define the write pole. A layer of non-magnetic material such as alumina is deposited. An ion milling is performed until the marker layer has been reached, and another reactive ion etching is performed to remove the remaining hard mask.
    • 一种用于制造写磁头的磁头的方法,其避免了写磁极定义期间与栅栏结构的形成有关的挑战。 沉积磁性写入极材料。 掩模结构沉积在磁性写入极材料上。 掩模结构包括第一硬掩模,标记层,物理上坚固的无机RIEable图像转印层,图像转印层上方的第二硬掩模结构和在第二硬掩模上的光致抗蚀剂层。 可以使用反应离子蚀刻工艺将光致抗蚀剂掩模和第二硬掩模层的图像转印到图像转印层上。 执行离子铣削以限定写入极。 沉积一层非磁性材料如氧化铝。 进行离子研磨直到达到标记层,并执行另一反应离子蚀刻以除去剩余的硬掩模。