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1.发明授权Method of making shallow etch air bearing surface features for optimized transducer spacing 失效制造浅蚀刻空气轴承表面特征的方法，以优化传感器间距公开(公告)号：US06421908B1
公开(公告)日：2002-07-23
申请号：US08893220
申请日：1997-07-15
IPC分类号： G11B542
CPC分类号： G11B5/6005 , Y10T29/49041
摘要： A shallow etch at the trailing edge rail that allows the slider to fly closer to the recording medium and exhibit less sensitivity to roll. The slider includes a support structure and at least one rail having side edges and an air bearing surface raised above the support structure. At least one of the rails comprises a magnetic element disposed on the support structure. The edges of the rail adjacent to the magnetic element are etched to minimize the fly height of the magnetic element over the disk while preventing collision of the rail with the disk during roll conditions. The etched features of the rail create relieved trailing edge portions where the edges of the rail adjacent to the magnetic element are lower than the air bearing surface but are higher than the support structure. The shallow etch in the air bearing surface minimizes the difference between the minimum mechanical slider/disk spacing and the magnetic head/disk spacing which in turn allows optimization of transducer spacing. The edges of the air bearing surface adjacent the magnetic element are shortened by reactive ion etching or ion milling.
摘要翻译： 在后缘轨道处的浅蚀刻，允许滑块更靠近记录介质飞行，并且对滚动的灵敏度较低。 滑块包括支撑结构和至少一个具有侧边缘的轨道和在支撑结构上方升高的空气支承表面。 轨道中的至少一个包括设置在支撑结构上的磁性元件。 蚀刻与磁性元件相邻的导轨的边缘以使磁性元件在盘上的飞行高度最小化，同时防止在滚动条件期间轨道与盘的碰撞。 轨道的蚀刻特征产生缓和的后缘部分，其中与磁性元件相邻的导轨的边缘低于空气支承表面，但高于支撑结构。 空气轴承表面中的浅蚀刻使最小机械滑块/磁盘间隔与磁头/磁盘间隔之间的差最小化，这又允许优化换能器间距。 靠近磁性元件的空气轴承表面的边缘通过反应离子蚀刻或离子铣削而缩短。
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2.发明授权
公开(公告)号：US5825587A
公开(公告)日：1998-10-20
申请号：US609602
申请日：1996-03-01
CPC分类号： G11B5/6005 , Y10T29/49041
摘要： A shallow etch at the trailing edge rail that allows the slider to fly closer to the recording medium and exhibit less sensitivity to roll. The slider includes a support structure and at least one rail having side edges and an air bearing surface raised above the support structure. At least one of the rails comprises a magnetic element disposed on the support structure. The edges of the rail adjacent to the magnetic element are etched to minimize the fly height of the magnetic element over the disk while preventing collision of the rail with the disk during roll conditions. The etched features of the rail create relieved trailing edge portions where the edges of the rail adjacent to the magnetic element are lower than the air bearing surface but are higher than the support structure. The shallow etch in the air bearing surface minimizes the difference between the minimum mechanical slider/disk spacing and the magnetic head/disk spacing which in turn allows optimization of transducer spacing. The edges of the air bearing surface adjacent the magnetic element are shortened by reactive ion etching or ion milling.
摘要翻译： 在后缘轨道处的浅蚀刻，允许滑块更靠近记录介质飞行，并且对滚动的灵敏度较低。 滑块包括支撑结构和至少一个具有侧边缘的轨道和在支撑结构上方升高的空气支承表面。 轨道中的至少一个包括设置在支撑结构上的磁性元件。 蚀刻与磁性元件相邻的导轨的边缘以使磁性元件在盘上的飞行高度最小化，同时防止在滚动条件期间轨道与盘的碰撞。 轨道的蚀刻特征产生缓和的后缘部分，其中与磁性元件相邻的导轨的边缘低于空气支承表面，但高于支撑结构。 空气轴承表面中的浅蚀刻使最小机械滑块/磁盘间隔与磁头/磁盘间隔之间的差最小化，这又允许优化换能器间距。 靠近磁性元件的空气轴承表面的边缘通过反应离子蚀刻或离子铣削而缩短。
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公开(公告)号：US08649126B2
公开(公告)日：2014-02-11
申请号：US12533870
申请日：2009-07-31
申请人： Sanford A. Bolasna , Weidong Huang
发明人： Sanford A. Bolasna , Weidong Huang
IPC分类号： G11B5/60
CPC分类号： G11B5/6005
摘要： A head slider for supporting a head over a magnetic disk in a hard disk drive, and a method of making the head slider are disclosed. The air bearing surface (ABS) of the head slider includes a relatively deep recess in front of a trailing pad and an island pad. A recess is formed between the trailing pad and the island pad of the ABS. In operation, the recess may reduce the peak pressure of the ABS, resulting in a reduced mid disk (MD) hump without a reduction in other performance parameters. The reduction in peak pressure may also reduce lubrication pick-up from the magnetic disk.
摘要翻译： 公开了一种用于在硬盘驱动器中的磁盘上支撑磁头的磁头滑块，以及制造磁头滑块的方法。 磁头滑动器的空气轴承表面（ABS）包括在拖曳垫前面的相对较深的凹部和岛状垫。 在ABS的后垫和岛垫之间形成凹部。 在操作中，凹槽可以降低ABS的峰值压力，导致中盘（MD）驼峰减小而不降低其他性能参数。 峰值压力的降低也可以减少从磁盘获得的润滑油。
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公开(公告)号：US20110122532A1
公开(公告)日：2011-05-26
申请号：US13019916
申请日：2011-02-02
IPC分类号： G11B5/60
CPC分类号： G11B5/6005 , G11B5/10 , G11B5/40
摘要： A head slider for supporting a head over a magnetic disk in a hard disk drive, and a method of making the head slider are disclosed. The tail section of the head slider has a deep write hole that may improve the altitude performance of the head slider by minimizing fly height variations at high altitudes (i.e., altitudes above 3000 m) or in low atmospheric pressure environments. The write hole prevents the fly height from changing. Additionally, the write hole limits the amount of lubricant that will flow over the ABS.
摘要翻译： 公开了一种用于在硬盘驱动器中的磁盘上支撑磁头的磁头滑块，以及制造磁头滑块的方法。 头部滑动器的尾部具有深度写入孔，可以通过最小化在高海拔地区（即3000米以上的高度）或在低气压环境中的飞行高度变化来改善头部滑块的高度性能。 写孔防止飞行高度变化。 此外，写入孔限制将流过ABS的润滑剂的量。
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公开(公告)号：US5396386A
公开(公告)日：1995-03-07
申请号：US69059
申请日：1993-05-28
CPC分类号： G11B5/6005 , G11B21/21
摘要： An air bearing slider for use in carrying a transducer adjacent a recording medium exhibits reduced sensitivity to variations in roll, crown, and skew. In one embodiment, the slider comprises an air bearing slider having a pair of substantially coplanar side rails disposed along the sides of the air bearing surface so as to form a recessed section between the side rails. The recessed section is open at both the leading and trailing ends of the slider while each side rail has a tapered section or etched step at the leading edge of the slider. One rail carries the transducer and extends for the entire length of the slider body. The rail without a transducer extends from the leading edge toward the trailing edge, but does not extend all the way to the trailing edge. Under some skew, accessing, and crash stop impact conditions, the resulting slider roll causes the flying height of the inactive rail to drop. By proper selection of the length and width of the inactive rail, the roll is biased such that the fly height of the inactive rail remains higher than that of the active rail even under worst case conditions. Therefore, minimum slider to disk spacing is larger than it would be for a slider design in which all rails extend the entire length of the slider.
摘要翻译： 用于承载邻近记录介质的传感器的空气轴承滑块表现出对辊，表冠和歪斜变化的敏感性降低。 在一个实施例中，滑块包括一个空气轴承滑块，其具有沿着空气轴承表面的侧面设置的一对基本上共面的侧轨，以便在侧轨之间形成凹陷部分。 凹陷部分在滑块的前端和后端都是打开的，而每个侧轨具有在滑块前缘处的锥形部分或蚀刻步骤。 一个轨道承载换能器并且在滑块体的整个长度上延伸。 没有传感器的导轨从前缘朝向后缘延伸，但不会一直延伸到后缘。 在某些偏斜，进入和碰撞停止冲击条件下，产生的滑块导致非活动导轨的飞行高度下降。 通过适当地选择不活动轨道的长度和宽度，辊被偏置，使得即使在最坏情况条件下，非活动轨道的飞行高度也保持高于活动轨道的飞行高度。 因此，最小滑块到磁盘间距大于滑块设计中的所有滑轨延伸滑块的整个长度。
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公开(公告)号：US20110026164A1
公开(公告)日：2011-02-03
申请号：US12533870
申请日：2009-07-31
申请人： Sanford A. Bolasna , Weidong Huang
发明人： Sanford A. Bolasna , Weidong Huang
CPC分类号： G11B5/6005
摘要： A head slider for supporting a head over a magnetic disk in a hard disk drive, and a method of making the head slider are disclosed. The air bearing surface (ABS) of the head slider includes a relatively deep recess in front of a trailing pad and an island pad. A recess is formed between the trailing pad and the island pad of the ABS. In operation, the recess may reduce the peak pressure of the ABS, resulting in a reduced mid disk (MD) hump without a reduction in other performance parameters. The reduction in peak pressure may also reduce lubrication pick-up from the magnetic disk.
摘要翻译： 公开了一种用于在硬盘驱动器中的磁盘上支撑磁头的磁头滑块，以及制造磁头滑块的方法。 磁头滑动器的空气轴承表面（ABS）包括在拖曳垫前面的相对较深的凹部和岛状垫。 在ABS的后垫和岛垫之间形成凹部。 在操作中，凹槽可以降低ABS的峰值压力，导致中盘（MD）驼峰减小而不降低其他性能参数。 峰值压力的降低也可以减少从磁盘获得的润滑油。
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公开(公告)号：US07583473B2
公开(公告)日：2009-09-01
申请号：US11495070
申请日：2006-07-28
IPC分类号： G11B5/60
CPC分类号： G11B5/6082
摘要： An air bearing surface of a slider is described. In one embodiment, the air bearing surface comprises a center channel. The air bearing surface further comprises a plurality of side channels, wherein at least one side channel of the plurality of side channels is open to the center channel, and a plurality of pocket areas. The center channel, the plurality of side channels, and the plurality of pocket areas are configured to allow air to flow along the center channel toward the trailing edge of the ABS, such that a change in ambient pressure and a change and relative velocity of a head assembly with respect to a data storage medium of a data storage device would not significantly affect the fly height of a head assembly utilizing the ABS.
摘要翻译： 描述滑块的空气支承表面。 在一个实施例中，空气轴承表面包括中心通道。 空气轴承表面还包括多个侧通道，其中多个侧通道中的至少一个侧通道对中心通道开放，以及多个口袋区域。 中心通道，多个侧通道和多个口袋区域被构造成允许空气沿着中心通道朝向ABS的后缘流动，使得环境压力的变化和a的变化和相对速度 关于数据存储设备的数据存储介质的头部组件不会显着影响使用ABS的头部组件的飞行高度。
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公开(公告)号：US5636086A
公开(公告)日：1997-06-03
申请号：US539021
申请日：1995-10-03
CPC分类号： G11B5/6005 , G11B21/21
摘要： An air bearing slider for use in carrying a transducer adjacent a recording medium exhibits reduced sensitivity to variations in roll, crown, and skew. In one embodiment, the slider comprises an air bearing slider having a pair of substantially coplanar side rails disposed along the sides of the air bearing surface so as to form a recessed section between the side rails. The recessed section is open at both the leading and trailing ends of the slider while each side rail has a tapered section or etched step at the leading edge of the slider. One rail carries the transducer and extends for the entire length of the slider body. The rail without a transducer extends from the leading edge toward the trailing edge, but does not extend all the way to the trailing edge. Under some skew, accessing, and crash stop impact conditions, the resulting slider roll causes the flying height of the inactive rail to drop. By proper selection of the length and width of the inactive rail, the roll is biased such that the fly height of the inactive rail remains higher than that of the active rail even under worst case conditions. Therefore, minimum slider to disk spacing is larger than it would be for a slider design in which all rails extend the entire length of the slider.
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公开(公告)号：US20100142092A1
公开(公告)日：2010-06-10
申请号：US12328309
申请日：2008-12-04
IPC分类号： G11B5/60
CPC分类号： G11B5/6029 , G11B5/6064
摘要： Magnetic disk drives and associated methods are described for performing an active flying height compensation process for a slider of a magnetic disk drive. For the flying height compensation process, a control system in the disk drive detects a reduction in flying height of a slider in the disk drive. The control system then calculates a compensation heating power to apply to one or more heating elements that are fabricated in the slider to compensate for the reduction in flying height. The control system then applies the compensation heating power to the heating element(s) in the slider to alter the ABS (i.e., generate a protrusion) and increase the flying height of the slider.
摘要翻译： 描述了用于对磁盘驱动器的滑块执行主动飞行高度补偿处理的磁盘驱动器和相关联的方法。 对于飞行高度补偿处理，磁盘驱动器中的控制系统检测磁盘驱动器中的滑块的飞行高度的减小。 控制系统然后计算补偿加热功率，以应用于在滑块中制造的一个或多个加热元件，以补偿飞行高度的降低。 控制系统然后将补偿加热功率施加到滑块中的加热元件以改变ABS（即，产生突起）并增加滑块的飞行高度。
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公开(公告)号：US20080024924A1
公开(公告)日：2008-01-31
申请号：US11495070
申请日：2006-07-28
IPC分类号： G11B5/60
CPC分类号： G11B5/6082
摘要： An air bearing surface of a slider is described. In one embodiment, the air bearing surface comprises a center channel. The air bearing surface further comprises a plurality of side channels, wherein at least one side channel of the plurality of side channels is open to the center channel, and a plurality of pocket areas. The center channel, the plurality of side channels, and the plurality of pocket areas are configured to allow air to flow along the center channel toward the trailing edge of the ABS, such that a change in ambient pressure and a change and relative velocity of a head assembly with respect to a data storage medium of a data storage device would not significantly affect the fly height of a head assembly utilizing the ABS.
摘要翻译： 描述滑块的空气支承表面。 在一个实施例中，空气轴承表面包括中心通道。 空气轴承表面还包括多个侧通道，其中多个侧通道中的至少一个侧通道对中心通道开放，以及多个口袋区域。 中心通道，多个侧通道和多个口袋区域被构造成允许空气沿着中心通道朝向ABS的后缘流动，使得环境压力的变化和a的变化和相对速度 关于数据存储设备的数据存储介质的头部组件不会显着影响使用ABS的头部组件的飞行高度。
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