Magnetic recording disk drive with shingled writing and rectangular optical waveguide for wide-area thermal assistance
    4.
    发明授权
    Magnetic recording disk drive with shingled writing and rectangular optical waveguide for wide-area thermal assistance 有权
    磁记录磁盘驱动器带有写字和矩形光波导用于广域热辅助

    公开(公告)号:US08416646B2

    公开(公告)日:2013-04-09

    申请号:US13190410

    申请日:2011-07-25

    IPC分类号: G11B11/00

    摘要: A thermally-assisted recording (TAR) disk drive uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source. The waveguide generates a generally elliptically-shaped optical spot that heats an area of the recording layer extending across multiple data tracks. The waveguide core has an aspect ratio (cross-track width to along-the track thickness) that achieves the desired size of the heated area while locating the peak optical intensity close to the trailing edge of the write pole tip where writing occurs. The large cross-track width of the waveguide core increases the volume of recording layer heated by the optical spot, which reduces the rate of cooling. This moves the peak temperature point of the heated area closer to the write pole tip and reduces the temperature drop between the peak temperature and the temperature at the trailing edge of the write pole tip where writing occurs.

    摘要翻译: 热辅助记录(TAR)磁盘驱动器使用带状闪烁的记录和矩形波导作为广域热源。 波导产生大致椭圆形的光点,其加热跨越多个数据轨道的记录层的区域。 波导芯具有实现加热区域的期望尺寸的纵横比(沿轨道厚度的横越轨道宽度),同时将峰值光强度定位在写入发生时写入磁极尖端的后缘附近。 波导芯的大的横向轨道宽度增加了由光点加热的记录层的体积,这降低了冷却速度。 这使得加热区域的峰值温度点更接近写极端,并且降低峰值温度与写入磁极尖端的后缘处的温度之间的温度下降。

    MAGNETIC RECORDING DISK DRIVE WITH SHINGLED WRITING AND RECTANGULAR OPTICAL WAVEGUIDE FOR WIDE-AREA THERMAL ASSISTANCE
    6.
    发明申请
    MAGNETIC RECORDING DISK DRIVE WITH SHINGLED WRITING AND RECTANGULAR OPTICAL WAVEGUIDE FOR WIDE-AREA THERMAL ASSISTANCE 有权
    磁带录音磁带驱动器,带有横向写入和矩形光波导,用于宽区域热辅助

    公开(公告)号:US20130028059A1

    公开(公告)日:2013-01-31

    申请号:US13190410

    申请日:2011-07-25

    IPC分类号: G11B13/04

    摘要: A thermally-assisted recording (TAR) disk drive uses “shingled” recording and a rectangular waveguide as a “wide-area” heat source. The waveguide generates a generally elliptically-shaped optical spot that heats an area of the recording layer extending across multiple data tracks. The waveguide core has an aspect ratio (cross-track width to along-the track thickness) that achieves the desired size of the heated area while locating the peak optical intensity close to the trailing edge of the write pole tip where writing occurs. The large cross-track width of the waveguide core increases the volume of recording layer heated by the optical spot, which reduces the rate of cooling. This moves the peak temperature point of the heated area closer to the write pole tip and reduces the temperature drop between the peak temperature and the temperature at the trailing edge of the write pole tip where writing occurs.

    摘要翻译: 热辅助记录(TAR)磁盘驱动器使用带状闪烁的记录和矩形波导作为广域热源。 波导产生大致椭圆形的光点,其加热跨越多个数据轨道的记录层的区域。 波导芯具有实现加热区域的期望尺寸的纵横比(沿轨道厚度的横越轨道宽度),同时将峰值光强度定位在写入发生时写入磁极尖端的后缘附近。 波导芯的大的横向轨道宽度增加了由光点加热的记录层的体积,这降低了冷却速度。 这使得加热区域的峰值温度点更接近写极端,并且降低峰值温度与写入磁极尖端的后缘处的温度之间的温度下降。

    THERMALLY ASSISTED RECORDING ASSEMBLY WITH BONDING PADS ON A TOP SURFACE
    8.
    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
    9.
    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。