公开(公告)号：US20070146930A1

公开(公告)日：2007-06-28

申请号：US11708958

申请日：2007-02-20

申请人： Yimin Hsu ,  Quang Le ,  Mason Williams

发明人： Yimin Hsu ,  Quang Le ,  Mason Williams

IPC分类号： G11B5/127 ,  G11B5/147 ,  G11B5/00

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/1871

摘要： Heads for perpendicular recording using a floating-trailing shield are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording. In one embodiment the floating-trailing shield wraps around the sides of the main pole piece.

摘要翻译： 描述使用浮动后挡板进行垂直记录的头部。 浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。 记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。 当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。 在一个实施例中，浮动后挡板围绕主极片的侧面包裹。

公开(公告)号：US20060245108A1

公开(公告)日：2006-11-02

申请号：US11116677

申请日：2005-04-27

申请人： Yimin Hsu ,  Quang Le ,  Roger Wood

发明人： Yimin Hsu ,  Quang Le ,  Roger Wood

IPC分类号： G11B5/127

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

摘要： A magnetic head for use in a perpendicular recording system having a novel shield structure that provides exceptional magnetic shielding from extraneous magnetic fields such as from a write coil, shaping layer or return pole of the write head. The magnetic head includes a write pole, a return pole and a magnetic shield that is magnetically connected with the return pole near the ABS and extends toward the write pole. The shield is formed with a notch at its edge closest to the write pole. The notch assures adequate physical, magnetic, and electrical separation between the write pole and the shield, while allowing un-notched portions of the shield to provide additional magnetic shielding.

公开(公告)号：US20050068678A1

公开(公告)日：2005-03-31

申请号：US10676742

申请日：2003-09-30

申请人： Yimin Hsu ,  Quang Le ,  James Nix ,  Mason Williams

发明人： Yimin Hsu ,  Quang Le ,  James Nix ,  Mason Williams

IPC分类号： G11B5/187 ,  G11B5/00 ,  G11B5/11 ,  G11B5/127 ,  G11B5/147 ,  G11B5/31

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/315 ,  G11B2005/0029

摘要： An embodiment of the invention is a head for perpendicular recording that has a trailing shield and side shields that are connected to the return pole piece by two studs of ferromagnetic material. The studs extend parallel to the track direction and are located a sufficient distance away from the main pole piece to reduce the flux flow from the main pole piece to the studs. Optionally the studs can be recessed behind the air-bearing surface. The preferred embodiment of the invention is a magnetic transducer with separated read and write heads for perpendicular recording.

摘要翻译： 本发明的一个实施例是用于垂直记录的头部，其具有通过两个铁磁材料柱连接到返回极片的后屏蔽和侧屏蔽。 螺柱平行于轨道方向延伸，并且距离主极片足够远的距离，以减少从主极片到螺柱的通量流。 可选地，螺柱可以凹入空气轴承表面后面。 本发明的优选实施例是具有分离的用于垂直记录的读写头的磁性换能器。

公开(公告)号：US07551396B2

公开(公告)日：2009-06-23

申请号：US11116796

申请日：2005-04-27

申请人： Yimin Hsu ,  Quang Le ,  Roger William Wood

发明人： Yimin Hsu ,  Quang Le ,  Roger William Wood

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3143 ,  G11B5/3163 ,  G11B5/3967

摘要： A studded trailing shield design and method for manufacture thereof. The studded trailing shield design maintains critical spacing between the trailing shield and the write pole and also maintains critical spacing between the studded, trailing shield connecting structure, even in a head design having read and write elements that are not aligned with one another.

摘要翻译： 一种镶嵌的后盾设计及其制造方法。 即使在具有不相互对准的读取和写入元件的头部设计中，镶嵌的后屏蔽设计保持了尾部屏蔽和写入极之间的关键间隔，并且还保持了镶嵌的后屏蔽连接结构之间的关键间隔。

公开(公告)号：US20050068671A1

公开(公告)日：2005-03-31

申请号：US10675046

申请日：2003-09-29

申请人： Yimin Hsu ,  Quang Le ,  Hin Lee ,  James Nix ,  Aron Pentek ,  Kurt Rubin ,  Neil Smith ,  Nian Sun ,  Walter Weresin ,  Mason Williams

发明人： Yimin Hsu ,  Quang Le ,  Hin Lee ,  James Nix ,  Aron Pentek ,  Kurt Rubin ,  Neil Smith ,  Nian Sun ,  Walter Weresin ,  Mason Williams

IPC分类号： G11B5/187 ,  G11B5/31 ,  G11B5/60 ,  H05K1/02 ,  G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/6005

摘要： The invention is a magnetic transducer with separated read and write heads for perpendicular recording. The write head has a trailing shield that extends from the return pole piece toward the main pole piece to form the write gap at the air-bearing surface. One embodiment of the trailing shield is a two part structure with a pedestal and a much smaller tip that confronts the main pole piece at the gap. In one embodiment a sink of non-magnetic, electrically conductive material is disposed in the separation gap between the read head and the flux bearing pole piece. The sink is preferably made of copper and does not extend to the ABS.

摘要翻译： 本发明是具有分离的用于垂直记录的读写头的磁性换能器。 写头具有从返回极片向主极片延伸的尾部屏蔽件，以在空气轴承表面形成写入间隙。 后挡板的一个实施例是具有基座的两部分结构和在间隙处面对主极片的更小的尖端。 在一个实施例中，非磁性导电材料的汇流槽设置在读头和磁通轴承极片之间的分隔间隙中。 水槽优选由铜制成并且不延伸到ABS。

公开(公告)号：US20050068669A1

公开(公告)日：2005-03-31

申请号：US10671639

申请日：2003-09-26

申请人： Yimin Hsu ,  Quang Le ,  Mason Williams

发明人： Yimin Hsu ,  Quang Le ,  Mason Williams

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/147 ,  G11B5/187

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/1871

摘要： Heads for perpendicular recording using a floating-trailing shield as part of the magnetic circuit for writing magnetic domains in the recording media are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording. In a second embodiment of the invention the floating-trailing shield extends around the sides of the main pole piece to reduce the off-track magnetic field.

摘要翻译： 描述了使用浮动拖尾屏蔽作为用于在记录介质中写入磁畴的磁路的一部分的垂直记录头。 浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。 记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。 当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。 在本发明的第二实施例中，浮动后挡板围绕主极片的侧面延伸以减少偏离磁场。

公开(公告)号：US07639450B2

公开(公告)日：2009-12-29

申请号：US11116677

申请日：2005-04-27

申请人： Yimin Hsu ,  Quang Le ,  Roger William Wood

发明人： Yimin Hsu ,  Quang Le ,  Roger William Wood

IPC分类号： G11B5/127

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

摘要： A magnetic head for use in a perpendicular recording system having a novel shield structure that provides exceptional magnetic shielding from extraneous magnetic fields such as from a write coil, shaping layer or return pole of the write head. The magnetic head includes a write pole, a return pole and a magnetic shield that is magnetically connected with the return pole near the ABS and extends toward the write pole. The shield is formed with a notch at its edge closest to the write pole. The notch assures adequate physical, magnetic, and electrical separation between the write pole and the shield, while allowing un-notched portions of the shield to provide additional magnetic shielding.

摘要翻译： 一种用于垂直记录系统的磁头，其具有新的屏蔽结构，其提供例如来自写入磁头的写入线圈，成形层或返回磁极的外部磁场的卓越的磁屏蔽。 磁头包括写入极，返回极和磁屏蔽，其与ABS附近的返回极磁性连接，并朝向写入极延伸。 屏蔽件在其最靠近写入极的边缘处形成有凹口。 凹口确保写磁极和屏蔽之间的充分的物理，磁性和电气分离，同时允许屏蔽层的未切口部分提供额外的磁屏蔽。

公开(公告)号：US08503131B2

公开(公告)日：2013-08-06

申请号：US13339310

申请日：2011-12-28

申请人： Yi Zheng ,  Yimin Hsu ,  Wen-Chien David Hsiao ,  Ming Jiang ,  Aron Pentek ,  Sue Siyang Zhang ,  Edward Hin Pong Lee ,  Hung-chin Guthrie ,  Ning Shi ,  Vladimir Nikitin ,  Prabodh Ratnaparkhi ,  Yinshi Liu

发明人： Yi Zheng ,  Yimin Hsu ,  Wen-Chien David Hsiao ,  Ming Jiang ,  Aron Pentek ,  Sue Siyang Zhang ,  Edward Hin Pong Lee ,  Hung-chin Guthrie ,  Ning Shi ,  Vladimir Nikitin ,  Prabodh Ratnaparkhi ,  Yinshi Liu

IPC分类号： G11B5/147

CPC分类号： G11B5/3166 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T428/11 ,  Y10T428/1186

摘要： A magnetic write head for perpendicular magnetic data recording. The write head includes a substrate and a magnetic write pole formed on the substrate, the write pole having a trailing edge and first and second sides. A magnetic stitched pole is formed over a portion of the magnetic write pole, the stitched pole having a front edge that defines a secondary flare point. First and second non-magnetic side walls are formed at the first and second sides of the write pole. The non-magnetic side walls extend from the substrate at least to the trailing edge of the write pole in a first region near an air bearing surface and wherein the first and second non-magnetic side walls extend from the substrate to a point between the substrate and the trailing edge, allowing the stitched magnetic pole to extend partially over the sides of the write pole.

摘要翻译： 用于垂直磁数据记录的磁写头。 写入头包括形成在衬底上的衬底和磁性写入磁极，写入极具有后缘和第一和第二侧。 在磁性写入磁极的一部分上形成有磁性的缝合磁极，缝合的磁极具有限定二次闪光点的前部边缘。 第一和第二非磁性侧壁形成在写入极的第一和第二侧。 所述非磁性侧壁在靠近空气支承表面的第一区域中从所述基板至少延伸到所述写柱的后缘，并且其中所述第一和第二非磁性侧壁从所述基板延伸到所述基板之间的点 和后缘，允许缝合的磁极部分地延伸在写柱的侧面上。

公开(公告)号：US07848054B2

公开(公告)日：2010-12-07

申请号：US11744054

申请日：2007-05-03

申请人： Wen-Chien David Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/127

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

摘要： A perpendicular magnetic write head having a conformal wrap around trailing shield. The write head includes a write pole that can be configured with a trapezoidal shape as viewed from the Air Bearing Surface (ABS) and which includes a wrap around trailing magnetic shield. The magnetic shield has a trailing portion that is separated from the leading edge of the write pole by a non-magnetic trailing gap, and has side shield portions that are separated from first and second side portions of the write pole by first and second non-magnetic side gaps. The magnetic shield can be configured with notches at either side of the trailing portion of magnetic shield. These notches can extend in the trailing direction by a distance that is preferably ¼ to 1 times the trailing gap thickness. The width of the straight, trailing portion of the shield is preferable ½ to 1 times of the main pole width.

摘要翻译： 垂直磁性写头，其具有围绕后屏蔽的保形包裹。 写入头包括写入极，其可以被配置为从空气轴承表面（ABS）观察到的梯形形状，并且包括围绕尾部磁屏蔽的包裹。 磁屏蔽具有通过非磁性拖尾间隔与写入极的前端分离的后部，并且具有通过第一和第二非间隙与写入极的第一和第二侧部分离的侧面屏蔽部分， 磁侧隙。 磁屏蔽可以在磁屏蔽的尾部的任一侧配置有凹口。 这些凹口可以在拖尾方向上延伸一段距离，优选为后缘间隙厚度的1/4至1倍。 屏蔽的直的后部的宽度优选为主极宽度的1/2至1倍。

公开(公告)号：US07841068B2

公开(公告)日：2010-11-30

申请号：US11772665

申请日：2007-07-02

申请人： Tsung Yuan Chen ,  Yimin Hsu ,  Yinshi Liu

发明人： Tsung Yuan Chen ,  Yimin Hsu ,  Yinshi Liu

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1871 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method of fabricating a single-pole perpendicular magnetic recording head to contain a bevel angle promotion layer that facilitates the fabrication of the bevel angle in a trapezoidal main pole. The bevel angle promotion layer is made of a non-magnetic material that is softer than the material (e.g., Al2O3) that normally underlies the main pole. In one embodiment, the bevel angle promotion layer is formed between an end of the yoke and the air bearing surface (ABS), with the top surface of the bevel angle promotion layer being substantially coplanar with the top surface of the yoke. In other embodiment the bevel angle promotion layer is integrated with a leading edge taper material, which is formed of a magnetic material, to broaden the magnetic flux path between the yoke and the main pole.

摘要翻译： 一种制造单极垂直磁记录头的方法，其包含有助于在梯形主极中制造斜角的斜角促进层。 斜角促进层由比通常位于主极下方的材料（例如Al 2 O 3）更软的非磁性材料制成。 在一个实施例中，斜角促进层形成在轭的端部和空气支承表面（ABS）之间，斜角促进层的顶表面与轭的顶表面基本共面。 在其他实施例中，斜角促进层与由磁性材料形成的前缘锥形材料整合，以扩大轭和主极之间的磁通路径。