公开(公告)号：US20080002291A1

公开(公告)日：2008-01-03

申请号：US11411561

申请日：2006-04-25

申请人： Hamid Balamane ,  Christian Bonhote ,  Yimin Hsu ,  Aaron Neuhaus ,  Aron Pentek ,  Yi Zheng

发明人： Hamid Balamane ,  Christian Bonhote ,  Yimin Hsu ,  Aaron Neuhaus ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing a magnetic write head for perpendicular magnetic recording having a write pole with a very narrow track width and well controlled critical dimensions. The write pole is formed by depositing an electrically conductive seed layer over a substrate, and then depositing a photo resist layer over the seed layer. The photo resist layer is photolithographically exposed and developed to form an opening or trench in the photoreist layer, the opening defining the pattern of the write pole. A magnetic material is then plated into the opening in the photoresist layer. The photo resist layer can then be removed by a chemical lift off, and portions of the seed layer that are not covered by the write pole can be removed by ion milling.

摘要翻译： 一种制造用于垂直磁记录的磁写头的方法，其具有具有非常窄的轨道宽度和良好控制的临界尺寸的写极。 写极通过在衬底上沉积导电种子层，然后在种子层上沉积光致抗蚀剂层而形成。 光致抗蚀剂层被光刻地曝光和显影以在光致镜层中形成开口或沟槽，该开口限定写入极的图案。 然后将磁性材料电镀在光致抗蚀剂层的开口中。 然后可以通过化学剥离去除光致抗蚀剂层，并且可以通过离子铣削除去未被写入极覆盖的种子层的部分。

公开(公告)号：US07587811B2

公开(公告)日：2009-09-15

申请号：US11411561

申请日：2006-04-25

申请人： Hamid Balamane ,  Christian Rene Bonhote ,  Yimin Hsu ,  Aaron Neuhaus ,  Aron Pentek ,  Yi Zheng

发明人： Hamid Balamane ,  Christian Rene Bonhote ,  Yimin Hsu ,  Aaron Neuhaus ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing a magnetic write head for perpendicular magnetic recording having a write pole with a very narrow track width and well controlled critical dimensions. The write pole is formed by depositing an electrically conductive seed layer over a substrate, and then depositing a photo resist layer over the seed layer. The photo resist layer is photolithographically exposed and developed to form an opening or trench in the photoreist layer, the opening defining the pattern of the write pole. A magnetic material is then plated into the opening in the photoresist layer. The photo resist layer can then be removed by a chemical lift off, and portions of the seed layer that are not covered by the write pole can be removed by ion milling.

摘要翻译： 一种制造用于垂直磁记录的磁写头的方法，其具有具有非常窄的轨道宽度和良好控制的临界尺寸的写极。 写极通过在衬底上沉积导电种子层，然后在种子层上沉积光致抗蚀剂层而形成。 光致抗蚀剂层被光刻地曝光和显影以在光致镜层中形成开口或沟槽，该开口限定写入极的图案。 然后将磁性材料电镀在光致抗蚀剂层的开口中。 然后可以通过化学剥离除去光致抗蚀剂层，并且可以通过离子铣削除去未被写入极覆盖的种子层的部分。

公开(公告)号：US20070115584A1

公开(公告)日：2007-05-24

申请号：US11286077

申请日：2005-11-23

申请人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

发明人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/147

CPC分类号： G11B5/3163 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  Y10T29/49021

摘要： A perpendicular write head having a wrap around trailing shield for reducing stray field writing and adjacent track interference. A method for constructing such a write head allows for excellent control of side shield gap thickness and trailing shield gap thickness, and allows the ratio of side gap to trailing gap thicknesses to be maintained at about two to one as desired. The method includes depositing forming a write pole by constructing a mask which may include a bi-layer hard mask, and then ion milling to form the write pole. Once the write pole has been formed, a layer of alumina or some other non-magnetic material can be conformally deposited. A reactive ion mill (RIM) can be performed to open up the top of the write pole (remove the horizontally disposed portions of the alumina layer). Then, a second layer of alumina or some other non-magnetic material can be deposited, and the write pole can be plated. The thickness of the side shield gaps is defined by the sum of the final thicknesses of the first and second alumina layers, while the thickness of the first magnetic layer defines the thickness of the trailing shield gap.

摘要翻译： 垂直写头，其具有围绕后屏蔽的卷绕，用于减少杂散场写入和相邻轨道干涉。 用于构造这样的写头的方法允许对侧屏蔽间隙厚度和后屏蔽间隙厚度的优良控制，并且允许侧间隙与后间隙厚度的比率根据需要保持在大约二对一。 该方法包括通过构成可包括双层硬掩模的掩模沉积形成写入极，然后进行离子铣削以形成写入极。 一旦形成了写极，就可以共形沉积一层氧化铝或其它非磁性材料。 可以执行反应离子磨（RIM）以打开写柱的顶部（去除氧化铝层的水平放置的部分）。 然后，可以沉积第二层氧化铝或一些其它非磁性材料，并且可以对写入极进行电镀。 侧屏蔽间隙的厚度由第一和第二氧化铝层的最终厚度之和限定，而第一磁性层的厚度限定了后屏蔽间隙的厚度。

公开(公告)号：US08054586B2

公开(公告)日：2011-11-08

申请号：US11286077

申请日：2005-11-23

申请人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

发明人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/3163 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  Y10T29/49021

摘要： A perpendicular write head having a wrap around trailing shield for reducing stray field writing and adjacent track interference. A method for constructing such a write head allows for excellent control of side shield gap thickness and trailing shield gap thickness, and allows the ratio of side gap to trailing gap thicknesses to be maintained at about two to one as desired. The method includes depositing forming a write pole by constructing a mask which may include a bi-layer hard mask, and then ion milling to form the write pole. Once the write pole has been formed, a layer of alumina or some other non-magnetic material can be conformally deposited. A reactive ion mill (RIM) can be performed to open up the top of the write pole (remove the horizontally disposed portions of the alumina layer). Then, a second layer of alumina or some other non-magnetic material can be deposited, and the write pole can be plated. The thickness of the side shield gaps is defined by the sum of the final thicknesses of the first and second alumina layers, while the thickness of the first magnetic layer defines the thickness of the trailing shield gap.

摘要翻译： 垂直写头，其具有围绕后屏蔽的卷绕，用于减少杂散场写入和相邻轨道干涉。 用于构造这样的写头的方法允许对侧屏蔽间隙厚度和后屏蔽间隙厚度的优良控制，并且允许侧间隙与后间隙厚度的比率根据需要保持在大约二对一。 该方法包括通过构成可包括双层硬掩模的掩模沉积形成写入极，然后进行离子铣削以形成写入极。 一旦形成了写极，就可以共形沉积一层氧化铝或其它非磁性材料。 可以执行反应离子磨（RIM）以打开写柱的顶部（去除氧化铝层的水平放置的部分）。 然后，可以沉积第二层氧化铝或一些其它非磁性材料，并且可以对写入极进行电镀。 侧屏蔽间隙的厚度由第一和第二氧化铝层的最终厚度之和限定，而第一磁性层的厚度限定了后屏蔽间隙的厚度。

公开(公告)号：US07576951B2

公开(公告)日：2009-08-18

申请号：US11411556

申请日：2006-04-25

申请人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

发明人： Donald G. Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aaron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

摘要翻译： 用于垂直磁记录的磁写头，具有带有凹后缘的写极。 磁性写入极可以具有梯形形状，其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽，并且如果包括后屏蔽，则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能，例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极，掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层，并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层，并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

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：US20070258167A1

公开(公告)日：2007-11-08

申请号：US11411556

申请日：2006-04-25

申请人： Donald Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

发明人： Donald Allen ,  Amanda Baer ,  Michael Feldbaum ,  Hung-Chin Guthrie ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Yinshi Liu ,  Aron Neuhaus ,  Vladimir Nikitin ,  Aron Pentek ,  Katalin Pentek ,  Yi Zheng

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

摘要翻译： 用于垂直磁记录的磁写头，具有带有凹后缘的写极。 磁性写入极可以具有梯形形状，其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽，并且如果包括后屏蔽，则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能，例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极，掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层，并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层，并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

公开(公告)号：US20070211384A1

公开(公告)日：2007-09-13

申请号：US11744054

申请日：2007-05-03

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

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

IPC分类号： G11B5/147

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 writ 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隙与写极的前缘分离的后部，并且具有通过第一和第二非隔离部分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：US08108985B2

公开(公告)日：2012-02-07

申请号：US11934687

申请日：2007-11-02

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： G11B5/127 ,  H04R31/00

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 method for manufacturing a magnetic write head for perpendicular magnetic recording. The method includes forming a write pole, and then depositing a refill layer. A mask structure can be formed over the writ pole and refill layer, the mask structure being configured to define a stitched pole. An ion milling or reactive ion milling can then be performed to remove portions of the refill layer that are not protected by the mask structure. Then a magnetic material can be deposited to form a stitched write pole that defines a secondary flare point. The stitched pole can also be self aligned with an electrical lapping guide in order to accurately locate the front edge of the secondary flare point relative to the air bearing surface of the write head.

摘要翻译： 一种用于制造用于垂直磁记录的磁写头的方法。 该方法包括形成写极，然后沉积补充层。 掩模结构可以形成在写极和再填充层上，掩模结构被配置为限定缝合极。 然后可以执行离子铣或反应离子研磨以去除未被掩模结构保护的部分填充层。 然后可以沉积磁性材料以形成限定二次闪光点的缝合写入极。 缝合的杆也可以与电动研磨引导件自对准，以便相对于写入头的空气轴承表面精确地定位二次扩张点的前边缘。