DISK DRIVE HAVING MULITPLE DISK SURFACES ACCESSIBLE BY A READ/WRITE HEAD AND NONVOLATILE MEMORY FOR CONTINUOUS DATA TRANSFER
    31.
    发明申请
    DISK DRIVE HAVING MULITPLE DISK SURFACES ACCESSIBLE BY A READ/WRITE HEAD AND NONVOLATILE MEMORY FOR CONTINUOUS DATA TRANSFER 有权
    具有读/写头和非易失性存储器可连续传输数据的磁盘驱动器

    公开(公告)号:US20100182716A1

    公开(公告)日:2010-07-22

    申请号:US12356070

    申请日:2009-01-19

    IPC分类号: G11B21/02

    摘要: A magnetic recording hard disk drive (HDD) has at least one read/write head that accesses more than one disk surface. The HDD is able to transfer data to and from the host computer seamlessly without interruption during the time the head is being moved from one disk surface to another disk surface. Nonvolatile solid state memory is associated with pairs of disk surfaces. During the time of a head transfer from one disk surface in the pair to the other disk surface, data is read from or written to the associated nonvolatile memory. The data is first read from or written to one disk surface, then from or to the nonvolatile memory, and then, after completion of the head transfer, from or to the other disk surface, thereby allowing seamless uninterrupted transfer of data.

    摘要翻译: 磁记录硬盘驱动器(HDD)具有访问多于一个盘表面的至少一个读/写头。 在头部从一个盘表面移动到另一个盘表面时,HDD能够无缝地将数据传送到主计算机和从主计算机传送数据。 非易失性固态存储器与一对磁盘表面相关联。 在磁头从一个磁盘表面传输到另一个磁盘表面的时间期间,数据从相关联的非易失性存储器读取或写入相关联的非易失性存储器。 数据首先从一个磁盘表面读取或写入,然后从或从非易失性存储器读取,然后在头部传送完成之后从另一个磁盘表面读取或写入,从而允许无缝地不间断地传输数据。

    Contact magnetic transfer template having magnetic islands of antiferromagnetically-coupled ferromagnetic films
    32.
    发明授权
    Contact magnetic transfer template having magnetic islands of antiferromagnetically-coupled ferromagnetic films 失效
    具有反铁磁耦合铁磁膜的磁岛的接触磁性传递模板

    公开(公告)号:US07504167B2

    公开(公告)日:2009-03-17

    申请号:US11036503

    申请日:2005-01-13

    IPC分类号: G11B5/66

    CPC分类号: G11B5/865 G11B5/66 G11B5/732

    摘要: A contact magnetic transfer (CMT) master template with antiferromagnetically-coupled (AF-coupled) magnetic islands is used for transferring a magnetic pattern, such as a servo pattern, to a magnetic recording disk. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.

    摘要翻译: 使用具有反铁磁耦合(AF耦合)磁岛的接触磁传递(CMT)主模板将诸如伺服模式的磁图案传送到磁记录盘。 该模板是刚性或柔性基板,每个磁岛是通过反铁磁耦合(AFC)膜反铁磁耦合的两个铁磁膜。 在存在施加的磁场的情况下,两个铁磁膜的磁矩是平行的并且基本相同,因此它们产生磁场,该磁场抵消面对岛的从盘区域中的施加磁场。 然而,当施加的场被去除时,由于跨越AFC膜的反铁磁交换耦合的结果,任何剩余磁化导致两个铁磁性膜中的剩余力矩取向反平行。 因此,这些岛没有可以影响转移到记录盘的伺服模式的净残余磁矩。

    Method of forming a servo pattern on a rigid magnetic recording disk
    33.
    发明授权
    Method of forming a servo pattern on a rigid magnetic recording disk 有权
    在刚性磁记录盘上形成伺服图案的方法

    公开(公告)号:US07106531B2

    公开(公告)日:2006-09-12

    申请号:US11036426

    申请日:2005-01-13

    IPC分类号: G11B5/86

    CPC分类号: G11B5/865 G11B5/82

    摘要: A contact magnetic transfer (CMT) method for forming a magnetic pattern, such as the servo pattern on a magnetic recording disk, uses a master template with antiferromagnetically-coupled (AF-coupled) magnetic islands. The template is a rigid or flexible substrate with each magnetic island being two ferromagnetic films antiferromagnetically-coupled by an antiferromagnetically-coupling (AFC) film. In the presence of the applied magnetic field the magnetic moments of the two ferromagnetic films are parallel and substantially identical so they generate a magnetic field that cancels the applied field in the region of the slave disk facing the islands. However, when the applied field is removed, any residual magnetization results in the remanent moments in the two ferromagnetic films being oriented antiparallel as a result of the antiferromagnetic exchange coupling across the AFC film. Thus the islands have no net remanent magnetic moment that can affect the servo pattern transferred to the recording disk.

    摘要翻译: 用于在磁记录盘上形成诸如伺服图案的磁性图案的接触磁转移(CMT)方法使用具有反铁磁耦合(AF耦合)磁岛的主模板。 该模板是刚性或柔性基板,每个磁岛是通过反铁磁耦合(AFC)膜反铁磁耦合的两个铁磁膜。 在存在施加的磁场的情况下,两个铁磁膜的磁矩是平行的并且基本相同,因此它们产生磁场,该磁场抵消面对岛的从盘区域中的施加磁场。 然而,当施加的场被去除时,由于跨越AFC膜的反铁磁交换耦合的结果,任何剩余磁化导致两个铁磁性膜中的剩余力矩取向反平行。 因此,这些岛没有可以影响转移到记录盘的伺服模式的净残余磁矩。

    Data recording system with servo pattern having pseudo-random binary sequences
    34.
    发明授权
    Data recording system with servo pattern having pseudo-random binary sequences 失效
    具有伪随机二进制序列的伺服模式的数据记录系统

    公开(公告)号:US06967808B1

    公开(公告)日:2005-11-22

    申请号:US10845814

    申请日:2004-05-13

    摘要: A data recording system, such as a magnetic recording hard disk drive, has a recording medium in which the data tracks have pseudo-random binary sequences for the servo information used to control the position of the recording head. A first pseudo-random binary sequence (PRBS) and a second PRBS identical to the first PRBS but shifted by a portion of the period of the first PRBS are located between the track boundaries in alternating tracks in a first region of the servo pattern and between the track centers in alternating tracks in a second region spaced along the track from said first region. A servo decoder has two correlators, one for each PRBS. Each correlator outputs a dipulse when its PRBS repeats. The difference in amplitude of the dipulses represents the head position signal. The dipulses also control the amplifier for the signal read back by the head and the timing of the track identification (TID) detector.

    摘要翻译: 诸如磁记录硬盘驱动器的数据记录系统具有其中数据轨道具有用于控制记录头的位置的伺服信息的伪随机二进制序列的记录介质。 第一伪随机二进制序列(PRBS)和与第一PRBS相同但被第一PRBS的周期的一部分移位的第二PRBS位于伺服模式的第一区域中的交替轨道中的轨道边界之间,并且位于 所述轨道在与所述第一区域沿所述轨道间隔开的第二区域中的交替轨道中心。 伺服解码器具有两个相关器,每个PRBS一个。 当PRBS重复时,每个相关器输出dipulse。 二次脉冲的幅度差表示磁头位置信号。 该信号还可控制放大器的头部读取信号和磁道识别(TID)检测器的定时。

    Contact magnetic transfer of servo pattern to rigid perpendicular magnetic recording disk
    35.
    发明授权
    Contact magnetic transfer of servo pattern to rigid perpendicular magnetic recording disk 有权
    将伺服模式的磁传递接触到刚性垂直磁记录盘

    公开(公告)号:US06791774B1

    公开(公告)日:2004-09-14

    申请号:US10436932

    申请日:2003-05-12

    IPC分类号: G11B586

    摘要: A contact magnetic transfer method forms a pattern of magnetized servo regions in the magnetic recording layer of a rigid perpendicular magnetic recording disk. A master disk or template has a rigid or flexible base with a first film of soft magnetic material on the base and a pattern of islands of soft magnetic material on and extending above the first film and recesses between the islands. The slave disk to be servo patterned is either DC magnetized in a first direction perpendicular to the plane of the recording layer or AC-erased. The slave disk is then placed with its outer layer in proximity to the islands of the master template and a magnetic field is applied in a perpendicular direction to magnetize the regions beneath the islands in the same direction as the applied field. In the regions of the recording layer beneath the recesses of the template the magnetization is reversed from that in the regions beneath the islands.

    摘要翻译: 接触磁转移方法在刚性垂直磁记录盘的磁记录层中形成磁化伺服区的图案。 母盘或模板具有刚性或柔性基部,在基部上具有软磁材料的第一膜,并且在第一膜上方并且在第一膜之上延伸并且在岛之间的凹陷处形成软磁材料岛的图案。 要伺服图案化的从盘在垂直于记录层的平面的第一方向上被直流磁化或被AC擦除。 然后将从盘与其外层放置在主模板的岛附近,并且沿垂直方向施加磁场,以沿与所施加的场相同的方向磁化岛下的区域。 在模板凹陷下方的记录层的区域中,磁化与岛下方的区域相反。

    Multiple stage high power diode
    36.
    发明授权
    Multiple stage high power diode 有权
    多级大功率二极管

    公开(公告)号:US06610999B2

    公开(公告)日:2003-08-26

    申请号:US09851692

    申请日:2001-05-08

    IPC分类号: H01L310256

    摘要: A Schottky rectifier has multiple stages with substantially identical or very similar structures. Each stage includes a nitride-based semiconductor layer, a Schottky contact formed on one surface of the semiconductor layer, and an ohmic contact formed on an opposite surface of the semiconductor layer. The Schottky layer is formed from a metallic material with a high metal work function, and the ohmic contact is formed from a metallic material with a low metal work function. At least one of the stages is a middle stage located between two adjacent stages, such that the Schottky contact of the middle stage and the ohmic contact of one of the adjacent stages are joined together, and such that the ohmic contact of the middle stage and the Schottky contact of another one of the adjacent stages are joined together.

    摘要翻译: 肖特基整流器具有多个阶段,具有基本相同或非常相似的结构。 每个级包括氮化物基半导体层,形成在半导体层的一个表面上的肖特基接触和形成在半导体层的相对表面上的欧姆接触。 肖特基层由具有高金属功能的金属材料形成,并且欧姆接触由具有低金属功函数的金属材料形成。 至少一个阶段是位于两个相邻阶段之间的中间阶段,使得中间阶段的肖特基接触和相邻阶段之一的欧姆接触被连接在一起,并且使得中间阶段的欧姆接触和 另一个相邻级的肖特基接触被连接在一起。

    Creation of mirror-image patterns by imprint and image tone reversal
    37.
    发明申请
    Creation of mirror-image patterns by imprint and image tone reversal 审中-公开
    通过印记和图像色调反转创建镜像图案

    公开(公告)号:US20110168665A1

    公开(公告)日:2011-07-14

    申请号:US13065035

    申请日:2011-03-11

    IPC分类号: G11B5/712 B29C33/42

    摘要: Mirror-image patterns for use one patterned media. Methods are implemented to create a mirror-image on the top and bottom of a media disk. These mirror images simplify the creation of electronics for patterned media. Further, the methods allow for a single e-beam master disk to be used to create the stamper for the top and the bottom of the media disk.

    摘要翻译: 使用一个图案化媒体的镜像图案。 实现方法来在介质盘的顶部和底部创建镜像。 这些镜像简化了图形媒体电子产品的创建。 此外,这些方法允许单个电子束母盘用于为介质盘的顶部和底部创建压模。

    PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES
    38.
    发明申请
    PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES 有权
    带有伺服区域的磁性记录磁盘记录磁盘,具有磁化的伺服柱和相对磁化的伺服轨道

    公开(公告)号:US20100246062A1

    公开(公告)日:2010-09-30

    申请号:US12412548

    申请日:2009-03-27

    IPC分类号: G11B5/74 C23C14/34

    摘要: A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.

    摘要翻译: 图案化的垂直磁记录盘具有预先图案化的盘基片,其具有布置在数据区域和伺服区域中的柱状物和沟槽。 在数据区域中,数据柱的高度等于或大于数据柱之间的间距,而在伺服区域中,伺服柱的高度小于伺服柱之间的间距。 具有垂直磁各向异性的磁记录材料沉积在整个盘基底上,这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。 数据沟槽中的材料是非磁性的或不连续的。 在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后,所得到的盘具有带有伺服柱的图案化伺服扇区,其中所有伺服柱都在相同的垂直方向上被磁化,并且伺服沟槽在相反的垂直方向上被磁化 。

    High resolution patterning of surface energy utilizing high resolution monomolecular resist for fabrication of patterned media masters
    39.
    发明授权
    High resolution patterning of surface energy utilizing high resolution monomolecular resist for fabrication of patterned media masters 失效
    利用高分辨率单分子抗蚀剂制造图案化媒体大师的表面能的高分辨率图案化

    公开(公告)号:US07687405B2

    公开(公告)日:2010-03-30

    申请号:US12177456

    申请日:2008-07-22

    IPC分类号: H01L21/302

    摘要: A method for patterning and forming very small structures on a substrate such as a wafer. The process uses a difference in surface energy between a mask and the substrate to selectively deposit a hard mask material such as a metal onto the surface of the substrate. The mask can be formed extremely thin, such as only an atomic mono-layer thick, and can be patterned by ion beam photolithography. The pattern can, therefore, be formed with extremely high resolution. The thin mask layer can be constructed of various materials and can be constructed of perfluoropolyether diacrylate (PDA), which can be dip coated to and exposed to form a desirable positive photoresist mask layer.

    摘要翻译: 在诸如晶片的基板上图案化和形成非常小的结构的方法。 该方法使用掩模和衬底之间的表面能的差别来选择性地将诸如金属的硬掩模材料沉积到衬底的表面上。 掩模可以形成得非常薄,例如只有原子单层厚,并且可以通过离子束光刻来图案化。 因此,可以以非常高的分辨率形成图案。 薄掩模层可以由各种材料构成,并且可以由全氟聚醚二丙烯酸酯(PDA)构成,其可以被浸涂并暴露以形成期望的正光致抗蚀剂掩模层。

    Creation of mirror-image patterns by imprint and image tone reversal
    40.
    发明申请
    Creation of mirror-image patterns by imprint and image tone reversal 审中-公开
    通过印记和图像色调反转创建镜像图案

    公开(公告)号:US20100020443A1

    公开(公告)日:2010-01-28

    申请号:US12220258

    申请日:2008-07-22

    IPC分类号: G11B5/82

    摘要: Mirror-image patterns for use one patterned media. Methods are implemented to create a mirror-image on the top and bottom of a media disk. These mirror images simplify the creation of electronics for patterned media. Further, the methods allow for a single e-beam master disk to be used to create the stamper for the top and the bottom of the media disk.

    摘要翻译: 使用一个图案化媒体的镜像图案。 实现方法来在介质盘的顶部和底部创建镜像。 这些镜像简化了图形媒体电子产品的创建。 此外,这些方法允许单个电子束母盘用于为介质盘的顶部和底部创建压模。