Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive
    51.
    发明授权
    Near-field transducer with thermal sensor and system for clocking write data in a patterned-media magnetic recording disk drive 有权
    具有热传感器的近场传感器和用于在图案化介质磁记录磁盘驱动器中写入数据的系统

    公开(公告)号:US08514672B2

    公开(公告)日:2013-08-20

    申请号:US12862633

    申请日:2010-08-24

    IPC分类号: G11B5/00

    摘要: A near-field transducer (NFT) has a primary tip that concentrates the oscillating charge of the NFT onto a substrate, such as magnetic recording medium, to heat regions of the medium, and a secondary tip. The secondary tip is located close to a temperature sensor, such as an electrical conductor whose resistance varies with temperature. The temperature sensor senses heat from the secondary tip and thus properties of the substrate like surface topography and the presence or absence of metallic material. The NFT can be part of a bit-patterned media (BPM) thermally-assisted recording (TAR) disk drive. The temperature sensor output is used to control the write pulses from the disk drive's write head so the magnetic write field is synchronized with the location of the magnetic data islands.

    摘要翻译: 近场换能器(NFT)具有将NFT的振荡电荷集中到诸如磁记录介质的基底上的初级尖端,以加热介质的区域和次级尖端。 次级尖端靠近温度传感器,例如电阻随温度变化的电导体。 温度传感器感测来自次级尖端的热量,因此感测衬底的性质,如表面形貌和金属材料的存在或不存在。 NFT可以是位图形介质(BPM)热辅助记录(TAR)磁盘驱动器的一部分。 温度传感器输出用于控制来自磁盘驱动器的写入头的写入脉冲,因此磁性写入磁场与磁性数据岛的位置同步。

    THERMALLY ASSISTED RECORDING ASSEMBLY WITH BONDING PADS ON A TOP SURFACE
    53.
    发明申请
    THERMALLY ASSISTED RECORDING ASSEMBLY WITH BONDING PADS ON A TOP SURFACE 有权
    热粘贴记录装置与顶部表面上的粘结垫

    公开(公告)号:US20130133182A1

    公开(公告)日:2013-05-30

    申请号:US13308246

    申请日:2011-11-30

    IPC分类号: G11B5/127

    摘要: The present invention generally relates to fabricating a bond pad for electrically connecting a laser diode to a slider and a TAR head in a HDD. The bond pad is deposited on a surface of the head that is perpendicular to the air bearing surface (ABS). The head is diced and lapped to expose the bond pad on a top surface of the head and mounted on a slider. The laser diode and a sub-mount may be coupled to the top surface of the slider—i.e., the surface opposite the ABS—by connecting to the bond pads. Specifically, both the laser diode and the sub-mount have electrodes thereon that are perpendicular to the bond pads. Conductive bonding material is used to bond the laser diode and the sub-mount to the bond pads.

    摘要翻译: 本发明一般涉及制造用于将激光二极管电连接到滑块的接合焊盘和HDD中的TAR头。 接合垫沉积在垂直于空气轴承表面(ABS)的头部的表面上。 头被切割和研磨以暴露头部顶表面上的接合垫并且安装在滑块上。 激光二极管和子座可以通过连接到接合焊盘而耦合到滑块的顶表面,即与ABS相对的表面。 具体来说,激光二极管和副底座都具有垂直于接合焊盘的电极。 导电接合材料用于将激光二极管和副安装座接合到接合焊盘。

    Electrical connection for a laser diode in a tar head
    55.
    发明授权
    Electrical connection for a laser diode in a tar head 有权
    焦油头中激光二极管的电气连接

    公开(公告)号:US08411535B1

    公开(公告)日:2013-04-02

    申请号:US13308348

    申请日:2011-11-30

    IPC分类号: G11B11/00

    CPC分类号: G11B5/105 G11B2005/0021

    摘要: The present invention generally relates to electrically connecting a laser diode to a slider and head assembly of a TAR head in a HDD. The laser diode is coupled to a sub-mount. The laser diode and the sub-mount are coupled to the top surface of the slider and/or the head assembly. Either the slider, the head assembly or both have bond pads exposed through their respective top surfaces to provide an electrical connection to both the laser diode and the sub-mount. Both the laser diode and the sub-mount have electrodes thereon that are perpendicular to the bond pads and are in contact with the bond pads. Conductive bonding material is used to not only bond the laser diode and the sub-mount to the bond pads, but also to electrically connect the bond pads to the electrodes.

    摘要翻译: 本发明一般涉及将激光二极管电连接到HDD中的TAR头的滑块和头部组件。 激光二极管耦合到子安装座。 激光二极管和子安装件联接到滑块和/或头组件的顶表面。 滑块,头部组件或两者都具有通过其相应的顶表面暴露的接合焊盘,以提供与激光二极管和副安装座的电连接。 激光二极管和子座都具有垂直于接合焊盘并且与接合焊盘接触的电极。 导电接合材料不仅用于将激光二极管和副安装座接合到接合焊盘,而且还将接合焊盘电连接到电极。

    NEAR-FIELD TRANSDUCER WITH THERMAL SENSOR AND SYSTEM FOR CLOCKING WRITE DATA IN A PATTERNED-MEDIA MAGNETIC RECORDING DISK DRIVE
    56.
    发明申请
    NEAR-FIELD TRANSDUCER WITH THERMAL SENSOR AND SYSTEM FOR CLOCKING WRITE DATA IN A PATTERNED-MEDIA MAGNETIC RECORDING DISK DRIVE 有权
    具有热传感器的近场传感器和用于在写入介质磁记录盘驱动器中锁定写入数据的系统

    公开(公告)号:US20120051196A1

    公开(公告)日:2012-03-01

    申请号:US12862633

    申请日:2010-08-24

    IPC分类号: G11B11/00

    摘要: A near-field transducer (NFT) has a primary tip that concentrates the oscillating charge of the NFT onto a substrate, such as magnetic recording medium, to heat regions of the medium, and a secondary tip. The secondary tip is located close to a temperature sensor, such as an electrical conductor whose resistance varies with temperature. The temperature sensor senses heat from the secondary tip and thus properties of the substrate like surface topography and the presence or absence of metallic material. The NFT can be part of a bit-patterned media (BPM) thermally-assisted recording (TAR) disk drive. The temperature sensor output is used to control the write pulses from the disk drive's write head so the magnetic write field is synchronized with the location of the magnetic data islands.

    摘要翻译: 近场换能器(NFT)具有将NFT的振荡电荷集中到诸如磁记录介质的基底上的初级尖端,以加热介质的区域和次级尖端。 次级尖端靠近温度传感器,例如电阻随温度变化的电导体。 温度传感器感测来自次级尖端的热量,因此感测衬底的性质,如表面形貌和金属材料的存在或不存在。 NFT可以是位图形介质(BPM)热辅助记录(TAR)磁盘驱动器的一部分。 温度传感器输出用于控制来自磁盘驱动器的写入头的写入脉冲,因此磁性写入磁场与磁性数据岛的位置同步。

    MAGNETIC RECORDING DISK DRIVE WITH PATTERNED MEDIA AND OPTICAL SYSTEM FOR CLOCKING WRITE DATA
    57.
    发明申请
    MAGNETIC RECORDING DISK DRIVE WITH PATTERNED MEDIA AND OPTICAL SYSTEM FOR CLOCKING WRITE DATA 有权
    带有图形媒体的磁记录磁盘驱动器和用于定时写入数据的光学系统

    公开(公告)号:US20100061018A1

    公开(公告)日:2010-03-11

    申请号:US12209089

    申请日:2008-09-11

    IPC分类号: G11B5/82

    摘要: A patterned-media magnetic recording disk drive uses an optical system for accurately clocking the write data. The disk has concentric data tracks patterned into discrete magnetizable data islands with nonmagnetic spaces between the islands. As the disk rotates, a radiation source directs near-field radiation to the islands and spaces, and a radiation detector receives reflected radiation. The radiation is directed from the source through an optical channel or waveguide on the air-bearing slider that supports the read and write heads. The optical channel or waveguide has a near-field transducer at the disk-facing surface of the slider where the near-field radiation exits and reflected radiation returns. The reflected optical power varies depending on whether the near-field transducer couples to an island or a space, so the radiation detector output signal represents the frequency and phase of the islands as the disk rotates. The write clock that controls write pulses to the write head is responsive to the radiation detector output signal, so the frequency and phase of the write clock signal can be matched to the frequency and phase of the islands as the disk rotates.

    摘要翻译: 图形媒体磁记录磁盘驱动器使用光学系统来准确地计时写入数据。 磁盘具有图案化成离散的可磁化数据岛之间的同心数据轨道,岛之间具有非磁性空间。 当盘旋转时,辐射源将近场辐射引导到岛和空间,并且辐射检测器接收反射的辐射。 辐射从源通过支撑读写头的含气滑块上的光通道或波导引导。 光通道或波导在滑块的面向盘的表面处具有近场换能器,其中近场辐射离开并且反射辐射返回。 反射的光功率取决于近场换能器耦合到岛还是空间,因此辐射检测器输出信号表示盘旋转时岛的频率和相位。 将写入脉冲控制到写入头的写入时钟响应于辐射检测器输出信号,因此当时间盘旋转时,写时钟信号的频率和相位可以与岛的频率和相位匹配。

    Method of configuring a sensor for a hard disk drive
    58.
    发明授权
    Method of configuring a sensor for a hard disk drive 失效
    配置硬盘驱动器的传感器的方法

    公开(公告)号:US07536773B2

    公开(公告)日:2009-05-26

    申请号:US11229930

    申请日:2005-09-19

    IPC分类号: G11B5/187

    摘要: A nano-sized CPP aperture is precisely positioned to within a few nanometers of a slider ABS surface to maximize a signal from the disk and to prevent lapping damage to the aperture itself. A linear array of apertures is aligned perpendicular to the ABS plane. The head resistance is monitored during lapping. Each time an aperture is lapped through, there is an increase in head resistance that is equal to the inverse of the total aperture area. There are three equal-sized apertures that are evenly spaced apart. When the first aperture is lapped through, there is a 50% increase in resistance, and a 100% increase in resistance when the second aperture is lapped through. These resistance increases are very large and are easy to distinguish from noise.

    摘要翻译: 纳米尺寸的CPP孔径被精确地定位在滑块ABS表面的几纳米内,以最大化来自盘的信号并且防止对孔本身的研磨损伤。 孔的线性阵列垂直于ABS平面排列。 在研磨期间监测头部电阻。 每次孔径穿过时,磁头电阻增加等于总开口面积的倒数。 有三个相等尺寸的孔均匀间隔开。 当第一个光阑穿过时,电阻增加了50%,当第二个光阑穿过时,电阻增加了100%。 这些电阻增加非常大,易于与噪声区分开来。

    Disk drive slider design for thermal fly-height control and burnishing-on-demand
    59.
    发明授权
    Disk drive slider design for thermal fly-height control and burnishing-on-demand 有权
    磁盘驱动器滑块设计,用于热飞行高度控制和按需抛光

    公开(公告)号:US07495856B2

    公开(公告)日:2009-02-24

    申请号:US10976630

    申请日:2004-10-29

    IPC分类号: G11B21/02 G11B15/64 G11B5/127

    摘要: An embodiment of the invention is a slider with a lift pad and a thermal protrusion pad in which the heads are located. The lift pad is located immediately in front of the thermal protrusion pad and is designed to achieve the flying characteristics needed for normal operation of the disk drive. The thermal protrusion pad includes a heater which is used to protrude the pad for burnishing-on-demand and/or for thermal fly-height control. The thermal protrusion pad is designed to generate very little lift so that protruding the thermal protrusion pad does not significantly increase the lift experienced by the slider. An alternative embodiment uses two overcoat thicknesses on the ABS surface with the thermal protrusion pad having a thin overcoat and the lift pad having a thicker overcoat.

    摘要翻译: 本发明的实施例是具有提升垫和热突起垫的滑块,其中头部位于其中。 升降垫位于热突起垫的正前方,并被设计成实现磁盘驱动器的正常操作所需的飞行特性。 热突起垫包括加热器,该加热器用于将垫突出以进行按需抛光和/或用于热飞行高度控制。 热突起垫被设计成产生非常小的升力,使得突出的热突起垫不会显着增加滑块经历的升力。 替代实施例在ABS表面上使用两个外涂层厚度,热突起垫具有薄的外涂层,提升垫具有较厚的外涂层。

    Ultra low-cost solid-state memory
    60.
    发明授权

    公开(公告)号:US07463502B2

    公开(公告)日:2008-12-09

    申请号:US11974749

    申请日:2007-10-15

    IPC分类号: G11C5/06

    摘要: A three-dimensional solid-state memory is formed from a plurality of bit lines, a plurality of layers, a plurality of tree structures and a plurality of plate lines. Bit lines extend in a first direction in a first plane. Each layer includes an array of memory cells, such as ferroelectric or hysteretic-resistor memory cells. Each tree structure corresponds to a bit line, has a trunk portion and at least one branch portion. The trunk portion of each tree structure extends from a corresponding bit line, and each tree structure corresponds to a plurality of layers. Each branch portion corresponds to at least one layer and extends from the trunk portion of a tree structure. Plate lines correspond to at least one layer and overlap the branch portion of each tree structure in at least one row of tree structures at a plurality of intersection regions.