公开(公告)号：US08184405B1

公开(公告)日：2012-05-22

申请号：US12930753

申请日：2011-01-14

Applicant: Guoqiang Zheng ,  Ellis Cha ,  Zhu Feng ,  Sindy Yeung

Inventor： Guoqiang Zheng ,  Ellis Cha ,  Zhu Feng ,  Sindy Yeung

IPC: G11B5/55

CPC classification number: G11B5/6082 ,  G11B5/102

Abstract: A slider is formed by a three-step ion milling process with an ABS topography that provides aerodynamic stability at sub-nanometer flying heights. The ABS design significantly eliminates the accumulation of lubricant and removes whatever lubricant does accumulate by use of a shallow dam at the trailing edge. In addition, a junction between a down-track channel and a cross-track channel directs airflow towards a center pad in which a transducer is embedded so that the pressure at the pad is enhanced even under high altitude conditions. The slider ABS is divided into two portions by a transverse deep air channel, but the channel is bridged by the cross-track channel which crosses the deep air channel with sides of unequal height. This dual height bridge allows variations in skew angle to be compensated so that pressure variations across the disk tracks are significantly reduced.

Abstract translation: 滑块通过具有ABS形貌的三步离子研磨工艺形成，其在亚纳米飞行高度处提供空气动力学稳定性。 ABS设计显着地消除了润滑剂的积聚，并且通过在后缘使用浅水坝去除了积聚的任何润滑剂。 此外，下轨道和跨轨道之间的接合处将气流引向中心衬垫，在中心衬垫中嵌入换能器，使得即使在高海拔条件下，衬垫处的压力也得到提高。 滑块ABS通过横向深空气通道分成两部分，但是通道由跨越高空气通道的横向通道桥接，其侧面不等高。 这种双高度桥允许补偿偏斜角的变化，使得磁盘轨道上的压力变化显着减小。

公开(公告)号：US20050237668A1

公开(公告)日：2005-10-27

申请号：US11110153

申请日：2005-04-19

Applicant: Ellis Cha ,  Guoqiang Zheng ,  Sindy Yeung

Inventor： Ellis Cha ,  Guoqiang Zheng ,  Sindy Yeung

IPC: G11B5/60 ,  G11B21/21

CPC classification number: G11B5/6082

Abstract: An apparatus allowing for a slider for use in a disk drive is disclosed. An embodiment of the present invention may include a leading side, a trailing side, at least two main rails, a slider surface with an air bearing surface, and at least one trench substantially parallel to the width of the slider. The trench in the air bearing surface results in a lower compression length of the slider and allows for particles to be channeled off of the disk surface.

Abstract translation: 公开了一种允许在盘驱动器中使用的滑块的装置。 本发明的实施例可以包括前侧，后侧，至少两个主轨道，具有空气轴承表面的滑块表面，以及基本上平行于滑块的宽度的至少一个沟槽。 空气轴承表面中的沟槽导致滑块的较低压缩长度，并允许颗粒从盘表面引出。

公开(公告)号：US20090219651A1

公开(公告)日：2009-09-03

申请号：US12074082

申请日：2008-02-29

Applicant: Guoqiang Zheng ,  Shoji Toyoda ,  Ellis Cha ,  Zhu Feng ,  Collins Lee

Inventor： Guoqiang Zheng ,  Shoji Toyoda ,  Ellis Cha ,  Zhu Feng ,  Collins Lee

IPC: G11B5/60

CPC classification number: G11B5/6005 ,  G11B5/6082

Abstract: A slider is formed with an ABS topography that eliminates the accumulation of lubricant swept from the surface of a rotating disk in an operating HDD. The topography includes air channeling grooves in which are formed backflow blocking elements that prevent the formation airflow patterns that would cause lubricant to be aspirated into the ABS topography of the slider and that create airflow patterns that sweep lubricant away from the ABS of the slider. The topography is first tested to make sure that the slider has the proper flying height and aerodynamic stability, then the backflow blocking elements are added to control the airflow, while maintaining the desired flying height and stability.

Abstract translation: 滑块形成有ABS形状，其消除了在操作的HDD中从旋转盘的表面扫过的润滑剂的积聚。 该形状包括空气沟槽，其中形成有逆流阻挡元件，其防止将导致润滑剂吸入滑块的ABS形状的形成气流图案，并产生使润滑剂从滑块的ABS扫过的气流图案。 首先测试地形，以确保滑块具有适当的飞行高度和空气动力学稳定性，然后添加回流阻挡元件以控制气流，同时保持期望的飞行高度和稳定性。

公开(公告)号：US07961433B2

公开(公告)日：2011-06-14

申请号：US12074082

申请日：2008-02-29

Applicant: Guoqiang Zheng ,  Shoji Toyoda ,  Ellis Cha ,  Zhu Feng ,  Collins Lee

Inventor： Guoqiang Zheng ,  Shoji Toyoda ,  Ellis Cha ,  Zhu Feng ,  Collins Lee

IPC: G11B5/60

CPC classification number: G11B5/6005 ,  G11B5/6082

Abstract: A slider is formed with an ABS topography that eliminates the accumulation of lubricant swept from the surface of a rotating disk in an operating HDD. The topography includes air channeling grooves in which are formed backflow blocking elements that prevent the formation airflow patterns that would cause lubricant to be aspirated into the ABS topography of the slider and that create airflow patterns that sweep lubricant away from the ABS of the slider. The topography is first tested to make sure that the slider has the proper flying height and aerodynamic stability, then the backflow blocking elements are added to control the airflow, while maintaining the desired flying height and stability.

Abstract translation: 滑块形成有ABS形状，其消除了在操作的HDD中从旋转盘的表面扫过的润滑剂的积聚。 该形状包括空气沟槽，其中形成有逆流阻挡元件，其防止将导致润滑剂吸入滑块的ABS形状的形成气流图案，并产生使润滑剂从滑块的ABS扫过的气流图案。 首先测试地形，以确保滑块具有适当的飞行高度和空气动力学稳定性，然后添加回流阻挡元件以控制气流，同时保持期望的飞行高度和稳定性。

公开(公告)号：US07760468B2

公开(公告)日：2010-07-20

申请号：US11110153

申请日：2005-04-19

Applicant: Ellis T. Cha ,  Guoqiang Zheng ,  Sindy Yeung

Inventor： Ellis T. Cha ,  Guoqiang Zheng ,  Sindy Yeung

IPC: G11B5/60

CPC classification number: G11B5/6082

Abstract: An apparatus allowing for a slider for use in a disk drive is disclosed. An embodiment of the present invention may include a leading side, a trailing side, at least two main rails, a slider surface with an air bearing surface, and at least one trench substantially parallel to the width of the slider. The trench in the air bearing surface results in a lower compression length of the slider and allows for particles to be channeled off of the disk surface.

Abstract translation: 公开了一种允许在盘驱动器中使用的滑块的装置。 本发明的实施例可以包括前侧，后侧，至少两个主轨道，具有空气轴承表面的滑块表面，以及基本上平行于滑块的宽度的至少一个沟槽。 空气轴承表面中的沟槽导致滑块的较低压缩长度，并允许颗粒从盘表面引出。

公开(公告)号：US08867172B2

公开(公告)日：2014-10-21

申请号：US13562612

申请日：2012-07-31

Applicant: Guoqiang Zheng ,  Wan Ting Looi ,  Kwun Pan Ng ,  Ellis Cha

Inventor： Guoqiang Zheng ,  Wan Ting Looi ,  Kwun Pan Ng ,  Ellis Cha

IPC: G11B5/60 ,  G11B21/20

CPC classification number: G11B5/607 ,  G11B5/6076 ,  G11B5/6082

Abstract: A DFH (Dynamic Flying Height) type slider ABS design has significantly improved DFH efficiency and back-off efficiency as well as uniform touchdown detectability. This is the result of decoupling the local pressure variations at the read/write head that result from skew angle variations across a disk, from local stiffness due to ABS protrusion caused by heater activation. The decoupling, which allows the heater activation stiffness to be carefully tuned, is a result of the effects of airflow channeled by a wide down-track channel onto a narrow down-track channel formed in an extended finger of the central pad of the slider. Airflow impinges on the finger channel in a manner that eliminates variations in air pressure at the central pad due to variations in skew angle.

Abstract translation: DFH（动态飞行高度）型滑块ABS设计显着提高了DFH效率和回退效率以及均匀的触地检测能力。 这是由于由于加热器激活引起的ABS突起引起的局部刚度导致由读取/写入头引起的局部压力变化导致的，由于盘上的偏斜角变化导致的局部压力变化。 允许仔细调节加热器激活刚度的解耦是由宽的下行通道引导的气流对形成在滑块的中心焊盘的延长的指状物中的窄的下轨道通道的影响的结果。 气流以消除由于偏斜角度的变化而在中心焊盘处的空气压力变化的方式撞击在手指通道上。

公开(公告)号：US20140036384A1

公开(公告)日：2014-02-06

申请号：US13562612

申请日：2012-07-31

Applicant: Guoqiang Zheng ,  Wan Ting Looi ,  Kwun Pan Ng ,  Ellis Cha

Inventor： Guoqiang Zheng ,  Wan Ting Looi ,  Kwun Pan Ng ,  Ellis Cha

IPC: G11B21/12 ,  B44C1/22

CPC classification number: G11B5/607 ,  G11B5/6076 ,  G11B5/6082

Abstract: A DFH (Dynamic Flying Height) type slider ABS design has significantly improved DFH efficiency and back-off efficiency as well as uniform touchdown detectability. This is the result of decoupling the local pressure variations at the read/write head that result from skew angle variations across a disk, from local stiffness due to ABS protrusion caused by heater activation. The decoupling, which allows the heater activation stiffness to be carefully tuned, is a result of the effects of airflow channeled by a wide down-track channel onto a narrow down-track channel formed in an extended finger of the central pad of the slider. Airflow impinges on the finger channel in a manner that eliminates variations in air pressure at the central pad due to variations in skew angle.

Abstract translation: DFH（动态飞行高度）型滑块ABS设计显着提高了DFH效率和回退效率以及均匀的触地检测能力。 这是由于由于加热器激活引起的ABS突起引起的局部刚度导致由读取/写入头引起的局部压力变化导致的，由于盘上的偏斜角变化导致的局部压力变化。 允许仔细调节加热器激活刚度的解耦是由宽的下行通道引导的气流对形成在滑块的中心焊盘的延长的指状物中的窄的下轨道通道的影响的结果。 气流以消除由于偏斜角度的变化而在中心焊盘处的空气压力变化的方式撞击在手指通道上。