公开(公告)号：US07889458B2

公开(公告)日：2011-02-15

申请号：US11598418

申请日：2006-11-13

申请人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

发明人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

IPC分类号： G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/187 ,  G11B2005/0013 ,  G11B2005/0032

摘要： A magnetic write head having a magnetic cross yoke arranged to provide a cross magnetic field in a pole tip region of the magnetic head. The cross field, which is perpendicular to the magnetization of write pole, reduces the switching time of the write field, thereby increasing the speed with which the write head can record data. The write head can be a longitudinal write head or a perpendicular write head. In the case of a perpendicular write, the write head can include a write pole arranged to provide a magnetic write field that emits a magnetic field substantially perpendicular with an Air Bearing Surface (ABS). A magnetic cross yoke is formed having ends that are disposed at opposite sides of the pole tip region of the write pole.

摘要翻译： 一种磁性写头，具有设置成在磁头的磁极尖端区域中提供交叉磁场的磁性交叉磁轭。 与写入磁极的磁化方向垂直的交叉场减少写入场的切换时间，从而提高写入头可以记录数据的速度。 写头可以是纵向写头或垂直写头。 在垂直写入的情况下，写入头可以包括写极，该写极被布置成提供发射与空气轴承表面（ABS）基本垂直的磁场的磁写入场。 形成磁性交叉轭，其端部设置在写入极的极尖区域的相对侧。

公开(公告)号：US20110026169A1

公开(公告)日：2011-02-03

申请号：US12510560

申请日：2009-07-28

申请人： Hardayal Singh Gill ,  Wen-Chien David Hsiao ,  Douglas Johnson Werner

发明人： Hardayal Singh Gill ,  Wen-Chien David Hsiao ,  Douglas Johnson Werner

IPC分类号： G11B5/127 ,  B05D5/12

CPC分类号： G11B5/3929 ,  B82Y10/00 ,  B82Y25/00 ,  G11B2005/3996

摘要： A dual current-perpendicular-to-plane scissor sensor according to one embodiment includes a middle free layer; two outer free layers positioned on opposite sides of the middle free layer; spacer layers between the middle free layer and each of the outer free layers; and a hard bias layer positioned behind the free layers relative to a media-facing surface of the sensor, wherein the free layers are about magnetostatically balanced.

摘要翻译： 根据一个实施例的双电流垂直平面剪式传感器包括中间自由层; 位于中间自由层的相对侧上的两个外部自由层; 中间自由层和每个外部自由层之间的间隔层; 以及相对于所述传感器的面向媒体的表面定位在所述自由层后面的硬偏置层，其中所述自由层围绕磁静态平衡。

公开(公告)号：US20110019309A1

公开(公告)日：2011-01-27

申请号：US12508860

申请日：2009-07-24

申请人： Wen-Chien David Hsiao ,  Yansheng Luo

发明人： Wen-Chien David Hsiao ,  Yansheng Luo

IPC分类号： G11B5/187

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： According to one embodiment, a system comprises a magnetic pole having a media-facing end and a wrap around shield spaced from the magnetic pole, wherein the wrap around shield has a media-facing end positioned along three sides of the media-facing end of the magnetic pole and has inner, second, and middle regions separated by transitional regions. The inner region is closest to the media facing end of the magnetic pole, the second region is farthest from the media facing end of the magnetic pole, and the middle region is between the inner and second regions. A cross-sectional height of the inner region measured perpendicularly to the wrap around shield's media-facing end is less than a cross-sectional height of the second region, and a cross-sectional height of the middle region is greater than the cross-sectional height of the inner region and less than the cross-sectional height of the second region.

摘要翻译： 根据一个实施例，一种系统包括具有面向媒体的端部和围绕屏蔽物与磁极间隔开的磁极的磁极，其中环绕屏蔽件具有面向介质的端部，其位于面向介质的端部的面向介质的端部的三侧 磁极具有由过渡区域分隔的内部，第二和中部区域。 内部区域最靠近磁极的与介质相对的端部，第二区域距磁极的与介质相对的端部最远，并且中间区域在内部区域和第二区域之间。 内部区域的横截面高度垂直于围绕屏蔽物的面向介质的端部的横截面高度小于第二区域的横截面高度，并且中间区域的横截面高度大于横截面 内部区域的高度并且小于第二区域的横截面高度。

公开(公告)号：US20100157472A1

公开(公告)日：2010-06-24

申请号：US12343709

申请日：2008-12-24

申请人： Wen-Chien David Hsiao ,  Aron Pentek ,  Sue Siyang Zhang ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Aron Pentek ,  Sue Siyang Zhang ,  Yi Zheng

IPC分类号： G11B5/10 ,  B44C1/22

CPC分类号： G11B5/1278 ,  G11B5/112 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： A method for forming a magnetic write head having a trailing shield with a tapered and stepped, self aligned trailing magnetic shield. The shield has a tapered portion that tapers away from the write pole as it extends away from the ABS. This tapered portion helps to channel flux to the pole tip portion of the shield, while preventing the loss of write field to the shield. The stepped portion of the shield further helps to prevent the loss of write field and also defines a secondary throat height of the shield that can be accurately located relative to the air bearing surface.

摘要翻译： 一种用于形成具有带有锥形和阶梯式自对准拖尾磁屏蔽的后挡板的磁写头的方法。 屏蔽件具有锥形部分，当锥形部分远离ABS延伸时，该锥形部分从写入柱逐渐变细。 该锥形部分有助于将通量传导到屏蔽的极端部分，同时防止对屏蔽件的写入场的损失。 护罩的台阶部分还有助于防止写入场的损失，并且还限定可相对于空气轴承表面精确定位的护罩的次级喉部高度。

公开(公告)号：US20090168240A1

公开(公告)日：2009-07-02

申请号：US11966023

申请日：2007-12-28

申请人： Wen-Chien David Hsiao ,  Quan-chiu Harry Lam

发明人： Wen-Chien David Hsiao ,  Quan-chiu Harry Lam

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

摘要： A magnetic write head for perpendicular magnetic data recording. The write head includes an wrap around trailing shield structure for improved write field strength, reduced skew related adjacent track interference and magnetic core width. The trailing wrap around shield includes a side shield that is separated from sides of the write pole by a side gap that is narrower near the leading edge of the write pole and wider near the trailing edge of the write pole.

摘要翻译： 用于垂直磁数据记录的磁写头。 写头包括用于改善写磁场强度，减少的相关轨道干涉偏移和磁芯宽度的后围屏蔽结构的缠绕。 尾部缠绕屏蔽件包括侧屏蔽件，该侧面屏蔽件通过在写入磁极的前边缘附近较窄的侧面间隙与写入磁极的两侧分离，并且在写入磁极的后边缘附近较宽。

公开(公告)号：US06842306B2

公开(公告)日：2005-01-11

申请号：US10284988

申请日：2002-10-31

申请人： Marie-Claire Cyrille ,  Wen-Chien David Hsiao ,  Yongho Sungtaek Ju ,  Wen-Yaung Lee ,  Stefan Maat ,  Howard Gordon Zolla

发明人： Marie-Claire Cyrille ,  Wen-Chien David Hsiao ,  Yongho Sungtaek Ju ,  Wen-Yaung Lee ,  Stefan Maat ,  Howard Gordon Zolla

IPC分类号： G11B5/31 ,  G11B5/39 ,  G11B5/235

CPC分类号： G11B5/3906

摘要： A magnetic head has highly thermally conductive insulator materials containing cobalt-oxide so that heat can more effectively dissipate from the magnetic head. In one illustrative example, the magnetic head has first and second gap layers and a read sensor disposed between the first and the second gap layers. The first and the second gap layers are advantageously made of cobalt-oxide (CoOx) (e.g. CoO or Co2O3), which may exhibit a thermal conductivity of between 5-8 watts/meter-Kelvin or greater. In another illustrative example, a magnetic head is made of a substrate; first and second shield layers; an undercoat layer formed between the substrate and the first shield layer; first and second gap layers formed between the first and the second shield layers; and a read sensor formed between the first and the second gap layers. The undercoat layer is also made of CoOx. The improved dissipation of heat from the magnetic head improves the read sensor performance and reduces the likelihood of other problems, such as head-to-disk interface problems.

摘要翻译： 磁头具有含有氧化钴的高导热绝缘体材料，使得热量可以更有效地从磁头中消散。 在一个说明性示例中，磁头具有第一和第二间隙层以及设置在第一间隙层和第二间隙层之间的读取传感器。 第一和第二间隙层有利地由氧化钴（CoO x）（例如CoO或Co 2 O 3）制成，其可以表现出5-8瓦/米 - 开尔文或更高的热导率。 在另一示例性实例中，磁头由衬底制成; 第一和第二屏蔽层; 形成在所述基板和所述第一屏蔽层之间的底涂层; 形成在第一和第二屏蔽层之间的第一和第二间隙层; 以及形成在第一间隙层和第二间隙层之间的读取传感器。 底涂层也由CoOx制成。 来自磁头的热量的改善消耗提高了读取传感器的性能，并降低了其他问题的可能性，例如磁头到磁盘的接口问题。

公开(公告)号：US6001235A

公开(公告)日：1999-12-14

申请号：US881040

申请日：1997-06-23

申请人： David M. Arken ,  Andrew Chiu ,  Joseph John Fatula, Jr. ,  Robert William Hitzfield ,  Wen-Chien David Hsiao ,  Yiping Hsiao

发明人： David M. Arken ,  Andrew Chiu ,  Joseph John Fatula, Jr. ,  Robert William Hitzfield ,  Wen-Chien David Hsiao ,  Yiping Hsiao

IPC分类号： C25D5/00 ,  C25D5/08 ,  C25D7/12 ,  C25B15/00 ,  C25D17/00 ,  C25D21/06

CPC分类号： C25D7/123 ,  C25D17/001 ,  C25D21/00 ,  C25D21/18 ,  C25D5/08 ,  Y10S204/07

摘要： A rotary plater and method of plating are provided which improve the uniformity of plating across a plating surface of a workpiece. A plating solution distribution device is located in a plating cup between an anode and a cathode in a spaced relationship therebetween and is centered about a vertical axis of the plating cup. A motor is provided for relatively rotating the cathode and the plating solution distribution device with respect to one another. The plating solution distribution device distributes the plating solution over the plating surface at a distribution rate which increases radially outwardly from the vertical axis. With this arrangement the volume of plating solution at the outer periphery of the plating surface is enriched with ions to promote plating uniformity.

摘要翻译： 提供了一种旋转镀层和电镀方法，其提高了跨工件的镀层表面的电镀均匀性。 电镀溶液分配装置位于阳极和阴极之间的电镀杯中，间隔开的关系，并且以电镀杯的垂直轴为中心。 提供电动机用于相对于彼此相对旋转阴极和电镀液分配装置。 电镀溶液分配装置以从垂直轴径向向外增加的分布率将电镀液分布在电镀表面上。 通过这种布置，电镀表面外周的电镀溶液的体积富含离子以促进电镀均匀性。

公开(公告)号：US08139320B2

公开(公告)日：2012-03-20

申请号：US11966086

申请日：2007-12-28

申请人： Wen-Chien David Hsiao ,  Yinshi Liu ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Yinshi Liu ,  Yi Zheng

IPC分类号： G11B5/127

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： A magnetic write head for perpendicular magnetic recording. The magnetic write head includes a write pole having a pole tip region and a flared region. The write pole also has a trailing, wrap-around magnetic shield that is separated from the sides of the write pole by a non-magnetic side gap layer. The write head is formed such that the side gap spacing is larger in the flared region than in the pole tip region. This varying gap spacing can be formed by depositing a non-magnetic material using a collimated sputter deposition aligned substantially perpendicular to the air bearing surface. This collimated sputtering deposits the non-magnetic material more readily on the sides of the write pole in the flared region than in the pole tip region.

摘要翻译： 用于垂直磁记录的磁写头。 磁写头包括具有极尖区域和扩口区域的写入极。 写极还具有通过非磁性侧间隙层与写入极的两侧分离的后围环绕磁屏蔽。 写头形成为使得扩张区域中的侧间隙间隔大于极尖区域中的间隙间距。 可以通过使用基本垂直于空气轴承表面排列的准直溅射沉积物沉积非磁性材料来形成这种变化的间隙间隔。 这种准直的溅射使非磁性材料更容易地在扩展区域中的写入极的侧面上比在磁极尖端区域中沉积。

公开(公告)号：US08068311B2

公开(公告)日：2011-11-29

申请号：US12040717

申请日：2008-02-29

申请人： Wen-Chien David Hsiao ,  Yansheng Luo ,  Quan-chiu Harry Lam

发明人： Wen-Chien David Hsiao ,  Yansheng Luo ,  Quan-chiu Harry Lam

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/312

摘要： A magnetic write head having a magnetic return pole that is configured to prevent wide area track erasure. The magnetic return pole has a throat region with a relatively narrow width and has a inner and outer wing portions formed near the air bearing surface. The inner wing portion has a front edge that is disposed at the air bearing surface, whereas the outer wing portion has a front edge that is recessed from the air bearing surface.

摘要翻译： 一种具有磁回归极的磁写头，其被配置为防止广泛的磁道擦除。 磁返回杆具有宽度相对较窄的喉部区域，并且在靠近空气支承表面处形成有内翼部分和外翼部分。 内翼部具有设置在空气支承面的前缘，而外翼部具有从空气轴承面凹入的前缘。

公开(公告)号：US20100163422A1

公开(公告)日：2010-07-01

申请号：US12345828

申请日：2008-12-30

申请人： Wen-Chien David Hsiao ,  Yinshi Liu ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Yinshi Liu ,  Yi Zheng

IPC分类号： C25D5/02 ,  B44C1/22 ,  C23C14/04

CPC分类号： C25D7/001 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49044 ,  Y10T29/49048

摘要： A method for forming a magnetic write head using a damascene process that does not form voids in the magnetic structure. An opening is formed in an alumina layer, the opening being configured to define a trench. Then a first layer of magnetic material is deposited into the trench. A CMP process is then performed to remove any voids that have formed in the first magnetic layer. Then a second layer of magnetic material is deposited over the first layer of magnetic material. In another embodiment of the invention, a opening is formed in the alumina layer, and a first layer of magnetic material is electroplated into the opening. A thin layer of non-magnetic material is then deposited, and a second layer of magnetic material is deposited over the thin layer of non-magnetic material. The thin layer of alumina advantageously provides a laminate structure that avoids data erasure.

摘要翻译： 一种使用在磁性结构中不形成空隙的镶嵌工艺形成磁写头的方法。 在氧化铝层中形成开口，该开口构造成限定沟槽。 然后将第一层磁性材料沉积到沟槽中。 然后执行CMP处理以去除在第一磁性层中形成的任何空隙。 然后在第一层磁性材料上沉积第二层磁性材料。 在本发明的另一个实施例中，在氧化铝层中形成开口，并将第一层磁性材料电镀到开口中。 然后沉积薄的非磁性材料层，并且第二层磁性材料沉积在非磁性材料的薄层上。 氧化铝的薄层有利地提供了避免数据擦除的层压结构。