公开(公告)号：US08254060B1

公开(公告)日：2012-08-28

申请号：US12426134

申请日：2009-04-17

申请人： Changqing Shi ,  Ming Jiang

发明人： Changqing Shi ,  Ming Jiang

IPC分类号： G11B5/127

CPC分类号： G11B5/3163 ,  G11B5/3116

摘要： A magnetic recording head includes a write pole comprising a throat region. The throat region includes a lower portion having a substantially trapezoidal cross-section, and an upper portion having a substantially rectangular cross-section. In a beveled region of the write pole, the substantially rectangular cross-section of the upper portion decreases in height towards an air bearing surface of the magnetic recording head.

摘要翻译： 磁记录头包括一个包括喉部区域的写柱。 喉部区域包括具有基本上梯形横截面的下部和具有基本上矩形横截面的上部。 在写入极的斜面区域中，上部的基本上矩形的横截面朝向磁记录头的空气支承表面的高度减小。

公开(公告)号：US08068312B2

公开(公告)日：2011-11-29

申请号：US11944157

申请日：2007-11-21

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  Y10T29/49048

摘要： A magnetic write head for perpendicular magnetic recording having a stitched notched trailing shield. The trailing shield includes a first pedestal portion having sides that are self aligned with the sides of the write pole and having a back edge that extends a first shield throat height. The shield further includes a second shield portion stitched onto the pedestal portion, the second shield portion having a back edge that extends beyond the back edge of the pedestal portion.

摘要翻译： 一种用于垂直磁记录的磁头，具有缝合有缺口的后挡板。 后挡板包括第一基座部分，该第一基座部分具有与写入极的两侧自对准的侧面，并且具有延伸第一屏蔽喉部高度的后边缘。 屏蔽还包括缝合在基座部分上的第二屏蔽部分，第二屏蔽部分具有延伸超过基座部分的后边缘的后边缘。

公开(公告)号：US20090168236A1

公开(公告)日：2009-07-02

申请号：US12005557

申请日：2007-12-26

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/23 ,  G11B5/315 ,  G11B5/3163

摘要： Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the throat height of the shield is self aligned to the location of the flare point of the write pole.

摘要翻译： 公开了用于制造薄膜垂直记录写头的方法和结构。 该制造涉及沉积具有相互高蚀刻选择性的两个不同的氧化物层。 该特征允许构建写极结构，其中轨道宽度独立于耀斑点的位置。 该过程还产生一种结构，其中屏蔽件的喉部高度自动对准写入磁极的扩张点的位置。

公开(公告)号：US20090128953A1

公开(公告)日：2009-05-21

申请号：US11944157

申请日：2007-11-21

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/127 ,  G11B5/187

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  Y10T29/49048

摘要： A magnetic write head for perpendicular magnetic recording having a stitched notched trailing shield. The trailing shield includes a first pedestal portion having sides that are self aligned with the sides of the write pole and having a back edge that extends a first shield throat height. The shield further includes a second shield portion stitched onto the pedestal portion, the second shield portion having a back edge that extends beyond the back edge of the pedestal portion.

摘要翻译： 一种用于垂直磁记录的磁头，具有缝合有缺口的后挡板。 后挡板包括第一基座部分，该第一基座部分具有与写入极的两侧自对准的侧面，并且具有延伸第一屏蔽喉部高度的后边缘。 屏蔽还包括缝合在基座部分上的第二屏蔽部分，第二屏蔽部分具有延伸超过基座部分的后边缘的后边缘。

公开(公告)号：US08409453B1

公开(公告)日：2013-04-02

申请号：US12778480

申请日：2010-05-12

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： B44C1/22

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

摘要： A method and system for fabricating magnetic recording transducer are described. The magnetic recording transducer has a main pole, a nonmagnetic gap covering the main pole, and a field region distal from the main pole. A portion of the nonmagnetic gap resides on the top of the main pole. The method and system include providing a patterned seed layer. A thick portion of the patterned seed layer is thicker than a thin portion of the patterned seed layer. At least part of the thick portion of the patterned seed layer resides on a portion of the field region. A wrap-around shield is on the patterned seed layer. At least part of the thin portion of the patterned seed layer is in proximity to and exposed by the wrap-around shield. The method and system also include field etching the field region distal from the wrap-around shield.

摘要翻译： 描述了用于制造磁记录换能器的方法和系统。 磁记录传感器具有主极，覆盖主极的非磁性间隙和远离主极的场区域。 非磁性间隙的一部分位于主极的顶部。 该方法和系统包括提供图案化种子层。 图案化种子层的厚部分比图案化种子层的薄部分厚。 图案化种子层的厚部分的至少部分位于场区域的一部分上。 环绕的屏蔽层在图案化的种子层上。 图案化种子层的薄部分的至少一部分靠近环绕屏蔽并暴露于其中。 该方法和系统还包括对远离环绕屏蔽的场区域进行场蚀刻。

公开(公告)号：US08262919B1

公开(公告)日：2012-09-11

申请号：US12824036

申请日：2010-06-25

申请人： Guanghong Luo ,  Changqing Shi ,  Danning Yang ,  Jinwen Wang ,  Ming Jiang

发明人： Guanghong Luo ,  Changqing Shi ,  Danning Yang ,  Jinwen Wang ,  Ming Jiang

IPC分类号： B44C1/22

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

摘要： A method and system for providing a pole of magnetic transducer having an intermediate layer are described. The method and system include providing a trench in the intermediate layer and depositing a nonmagnetic liner. A portion of the nonmagnetic liner resides in the trench. At least one seed layer is deposited. A portion of the at least one seed layer resides in the trench. The method and system include depositing at least one main pole layer. The at least one main pole layer is magnetic. A portion of the main pole layer(s) reside in the trench. The method and system also include performing a first chemical mechanical planarization (CMP). An excess portion of the seed layer(s) external to the trench are removed through an ion beam etch. The method and system further include performing a second CMP to remove an excess portion of the nonmagnetic liner external to the trench.

摘要翻译： 描述了一种用于提供具有中间层的磁换能器的磁极的方法和系统。 该方法和系统包括在中间层中提供沟槽并沉积非磁性衬垫。 非磁性衬垫的一部分位于沟槽中。 沉积至少一个种子层。 至少一个种子层的一部分位于沟槽中。 该方法和系统包括沉积至少一个主极层。 至少一个主极层是磁性的。 主极层的一部分驻留在沟槽中。 该方法和系统还包括执行第一化学机械平面化（CMP）。 通过离子束蚀刻去除沟槽外部的种子层的多余部分。 该方法和系统还包括执行第二CMP以去除沟槽外部的非磁性衬垫的多余部分。

公开(公告)号：US07889456B2

公开(公告)日：2011-02-15

申请号：US11939503

申请日：2007-11-13

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/147

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

摘要： A perpendicular magnetic recording write head having a flux shaping layer located on the write pole which has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole. A second flux shaping layer may be located on the write pole with both shaping layers having an end recessed from the write pole end. The first and second flux shaping layers may also be tapered in the direction of the recording medium and cover the sides of the write pole in the cross-track direction to substantially surrounded the write pole with flux shaping material.

摘要翻译： 一种垂直磁记录写头，其具有位于写极上的通量成形层，其具有大致位于头托架的面向记录介质的表面的端部。 写头包括形成有写极的主极，其具有从写极端凹入的端部，以及至少一个通量返回极。 在一个实施方案中，第一磁通形成层位于主极和写极之间。 第二磁通形成层可以位于写极上，两个成形层具有从写极端凹入的端部。 第一和第二磁通形成层也可以在记录介质的方向上渐缩，并且在交叉磁道方向上覆盖写极的侧面，以基本上用磁通量成形材料包围写极。

公开(公告)号：US20090154026A1

公开(公告)日：2009-06-18

申请号：US11955305

申请日：2007-12-12

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/33

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

摘要： A magnetic write head for perpendicular magnetic recording having a thin wrap-around magnetic shield. The small thickness and forming method of the thin wrap-around magnetic shield allow it to be electroplated using a thin photoresist frame mask. The thin photoresist frame mask has better critical dimension and straight wall control than a thicker mask, which allows the wrap-around magnetic shield to be constructed with much more straight and uniform back edge for shield throat height control than is possible when forming a thicker (i.e. taller) shield. The thin wrap-around magnetic shield can be stitched to a trailing return pole to avoid magnetic saturation of the wrap-around shield.

摘要翻译： 用于垂直磁记录的磁写头，具有薄的环绕磁屏蔽。 薄环绕磁屏蔽的小厚度和形成方法允许其使用薄的光致抗蚀剂框架掩模进行电镀。 薄的光致抗蚀剂框架掩模具有比较厚的掩模更好的临界尺寸和直壁控制，这使得环绕的磁屏蔽件构造成具有更加直线和均匀的后边缘，用于在形成更厚的（ 即更高）的盾牌。 薄环绕磁屏蔽可以缝合到尾部返回极，以避免环绕屏蔽的磁饱和。

公开(公告)号：US20090122445A1

公开(公告)日：2009-05-14

申请号：US11939503

申请日：2007-11-13

申请人： Ming Jiang ,  Changqing Shi

发明人： Ming Jiang ,  Changqing Shi

IPC分类号： G11B5/10

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

摘要： A perpendicular magnetic recording write head has at least one flux shaping layer located on the write pole. The write pole has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole and has an end recessed from the write pole end. A second flux shaping layer, also with its end recessed form the write pole end, may be located on the write pole. The second flux shaping layer may also cover the sides of the write pole in the cross-track direction so that together with the first flux shaping layer, the write pole is substantially surrounded by flux shaping material. The ends of the flux shaping layers may be tapered in the direction of the recording medium to enhance directing and shaping the flux to the write pole end.

摘要翻译： 垂直磁记录写头具有位于写柱上的至少一个磁通形成层。 写极具有大致位于头托架的面向记录介质的表面的端部。 写头包括形成有写极的主极，其具有从写极端凹入的端部和至少一个通量返回极。 在一个实施方案中，第一磁通形成层位于主极和写极之间，并且具有从写极端凹入的端部。 第二磁通形成层，其端部凹入形成写极端，可以位于写极上。 第二磁通形成层也可以覆盖写磁极的交叉磁道方向的侧面，使得与第一磁通形成层一起，写磁极基本上被磁通成形材料包围。 焊剂成形层的端部可以在记录介质的方向上渐缩，以增强引导和成形焊剂到写入极端部。

公开(公告)号：US08257597B1

公开(公告)日：2012-09-04

申请号：US12717090

申请日：2010-03-03

申请人： Lijie Guan ,  Changqing Shi ,  Ming Jiang ,  Yun-Fei Li

发明人： Lijie Guan ,  Changqing Shi ,  Ming Jiang ,  Yun-Fei Li

IPC分类号： B44C1/22

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  Y10T29/49021 ,  Y10T29/49048

摘要： Methods of forming a write pole are disclosed. A first photomask having a first opening over one of a yoke region and a pole tip region of the write pole is formed over an insulation layer having an insulator material. A first etch process is performed on the insulation layer via the first opening, the first etch process removing the insulator material from a corresponding one of the yoke region and the pole tip region. A second photomask having a second opening over the other one of the yoke region and the pole tip region is formed over the insulation layer. A second etch process is performed on the insulation layer via the second opening, the second etch process removing the insulator material from a corresponding one of the yoke region and the pole tip region.

摘要翻译： 公开了形成写极的方法。 在具有绝缘体材料的绝缘层上形成第一光掩模，其具有位于写磁极的磁轭区域和极尖区域之一上的第一开口。 通过第一开口在绝缘层上执行第一蚀刻工艺，第一蚀刻工艺从磁轭区域和极尖区域中的对应的一个去除绝缘体材料。 在绝缘层上形成第二光掩模，该第二光掩模具有位于轭区域和极尖区域另一个之上的第二开口。 经由第二开口在绝缘层上执行第二蚀刻工艺，第二蚀刻工艺从磁轭区域和极尖区域中的对应的一个去除绝缘体材料。