公开(公告)号：US08233235B2

公开(公告)日：2012-07-31

申请号：US12634514

申请日：2009-12-09

申请人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu

发明人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu

IPC分类号： G11B5/147 ,  G11B5/23

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/3163 ,  Y10T29/49048

摘要： Methods for fabrication of tapered magnetic poles with a non-magnetic front bump layer. A magnetic pole may have a tapered surface at or near an air bearing surface (ABS), wherein a thickness of the write pole increases in a direction away from the ABS. A non-magnetic front bump layer may be formed on the tapered surface of the magnetic pole and away from the ABS. The front bump layer may increase the separation distance between a shield layer and the magnetic pole near the tapered surface, thereby improving the performance of the write head.

摘要翻译： 用非磁性前凸块层制造锥形磁极的方法。 磁极可以在空气轴承表面（ABS）处或附近具有锥形表面，其中写入极的厚度在远离ABS的方向上增加。 可以在磁极的锥形表面上远离ABS形成非磁性前凸块层。 前凸块层可以增加在锥形表面附近的屏蔽层和磁极之间的间隔距离，从而提高写入头的性能。

公开(公告)号：US08149536B1

公开(公告)日：2012-04-03

申请号：US11871672

申请日：2007-10-12

申请人： Danning Yang ,  Yingjian Chen ,  Brant Nease ,  Kyusik Sin

发明人： Danning Yang ,  Yingjian Chen ,  Brant Nease ,  Kyusik Sin

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  G11B5/3169 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method and system for manufacturing a perpendicular magnetic recording head is disclosed. The method and system include providing a chemical mechanical planarization (CMP) uniformity structure having an aperture therein and forming a perpendicular magnetic recording pole within the aperture. The CMP uniformity structure may include a CMP barrier layer. The method and system further include fabricating an insulator after formation of the perpendicular magnetic recording pole and performing a CMP to remove a portion of the insulator, expose a portion of the perpendicular magnetic recording pole and planarize an exposed surface of the perpendicular magnetic recording head.

摘要翻译： 公开了用于制造垂直磁记录头的方法和系统。 该方法和系统包括提供其中具有孔的化学机械平面化（CMP）均匀性结构，并在孔内形成垂直的磁记录极。 CMP均匀性结构可以包括CMP阻挡层。 所述方法和系统还包括在形成垂直磁记录极之后制造绝缘体，并执行CMP以去除绝缘体的一部分，暴露垂直磁记录极的一部分并平面化垂直磁记录头的暴露表面。

公开(公告)号：US08079135B1

公开(公告)日：2011-12-20

申请号：US11955667

申请日：2007-12-13

申请人： Yong Shen ,  Liubo Hong ,  Guanghong Luo ,  Honglin Zhu ,  Lei Wang ,  Yingjian Chen

发明人： Yong Shen ,  Liubo Hong ,  Guanghong Luo ,  Honglin Zhu ,  Lei Wang ,  Yingjian Chen

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for providing a perpendicular magnetic recording (PMR) transducer is described. The PMR transducer provided includes a PMR pole and yoke structure coupled with the PMR pole. The method includes providing a hard mask and an intermediate layer. A first portion of the hard mask resides on the PMR pole. A second portion of the hard mask resides on another structure. The intermediate layer surrounds at least the PMR pole. The method also includes performing a planarization on at least the intermediate layer, removing the first portion of the hard mask on the PMR pole without completely removing the second portion of the hard mask on the other structure. The method further includes removing a remaining portion of the hard mask on the other structure, providing a write gap on the PMR pole, and providing a shield on the write gap.

摘要翻译： 描述了一种用于提供垂直磁记录（PMR）换能器的方法。 提供的PMR传感器包括与PMR极耦合的PMR极和轭结构。 该方法包括提供硬掩模和中间层。 硬掩模的第一部分位于PMR杆上。 硬掩模的第二部分位于另一结构上。 中间层至少包围PMR极。 该方法还包括在至少中间层上执行平面化，在PMR极上去除硬掩模的第一部分，而不必在另一个结构上完全去除硬掩模的第二部分。 该方法还包括移除另一结构上的硬掩模的剩余部分，在PMR极上提供写入间隙，并在写入间隙上提供屏蔽。

公开(公告)号：US07354664B1

公开(公告)日：2008-04-08

申请号：US10854119

申请日：2004-05-25

申请人： Hai Jiang ,  Kyusik Sin ,  Yingjian Chen

发明人： Hai Jiang ,  Kyusik Sin ,  Yingjian Chen

IPC分类号： G11B5/66

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/313 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T428/12465

摘要： A magnetic disk has a soft magnetic underlayer comprising a first layer containing NiFe having a concentration of iron that is at least thirty percent and not more than seventy percent; a second layer that adjoins the first layer and contains FeCoN having a concentration of iron that is greater than the second layer's concentration of cobalt, having a concentration of nitrogen that is less than the second layer's concentration of cobalt and less than three percent; and a third layer containing FeCoNi having a concentration of nickel that is less than eight percent, having a concentration of cobalt that is less than the third layer's concentration of iron and greater than the third layer's concentration of nickel, the third layer adjoining only one of the first and second layers. The first and second layers may be repeated to form a magnetically soft high BS laminate for a disk underlayer.

摘要翻译： 磁盘具有软磁性底层，其包含含有铁浓度为至少百分之三十且不超过百分之七十的NiFe的第一层; 邻接第一层并且含有铁浓度大于第二层的钴浓度的FeCoN的第二层，其具有小于第二层的钴浓度的氮浓度小于3％; 以及第三层，其含有镍浓度小于8％的FeCoNi，其钴浓度小于第三层铁的浓度，大于第三层的镍浓度，第三层仅与 第一层和第二层。 可以重复第一层和第二层以形成用于盘底层的磁软的高B层叠层。

公开(公告)号：US07027274B1

公开(公告)日：2006-04-11

申请号：US09943859

申请日：2001-08-30

申请人： Kyusik Sin ,  Yingjian Chen

发明人： Kyusik Sin ,  Yingjian Chen

IPC分类号： G11B5/33

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3909 ,  G11B5/3932

摘要： A hard biased spin-dependent tunneling sensor and manufacturing method therefor is provided having a substrate with a first lead formed thereon. A hard magnet is formed over the first lead and a free layer is formed over the hard magnet. A tunneling barrier layer with a first pinned layer formed thereon is formed over the free layer. A nonmagnetic coupling layer with a second pinned layer formed thereon is formed over the first pinned layer. A pinning layer is formed over the second pinned layer and a second lead is formed over the pinning layer.

摘要翻译： 提供了一种硬偏置自旋相关隧道传感器及其制造方法，其具有在其上形成有第一引线的基板。 在第一引线上形成硬磁体，在硬磁体上形成自由层。 形成在其上的第一被钉扎层的隧道势垒层形成在自由层上。 形成在其上的第二被钉扎层的非磁性耦合层形成在第一被钉扎层上。 在第二钉扎层上形成钉扎层，并且在钉扎层上形成第二引线。

公开(公告)号：US06934113B1

公开(公告)日：2005-08-23

申请号：US10816050

申请日：2004-03-31

申请人： Yingjian Chen

发明人： Yingjian Chen

IPC分类号： G11B5/58 ,  G11B5/60 ,  G11B21/12

CPC分类号： G11B5/58 ,  G11B5/3123 ,  G11B5/3133 ,  G11B5/6047

摘要： A method and system for actuating a pole tip of a write head is disclosed. The write head includes a first pole and a second pole. The method and system include providing a strain element and providing a coil. The strain element is electrically insulated from the first pole and the second pole. The strain element is further configured to produce a strain for actuating the pole tip in response to a magnetic field. The coil carries a current capable of producing the magnetic field at the strain element.

摘要翻译： 公开了一种用于致动写入磁头的极尖的方法和系统。 写头包括第一极和第二极。 该方法和系统包括提供应变元件并提供线圈。 应变元件与第一极和第二极电绝缘。 应变元件还被配置为产生用于响应于磁场致动极尖的应变。 线圈承载能够在应变元件处产生磁场的电流。

公开(公告)号：US06785955B1

公开(公告)日：2004-09-07

申请号：US09769060

申请日：2001-01-23

申请人： Yingjian Chen ,  Hugh Craig Hiner ,  Benjamin Chen ,  Xizeng Shi ,  Kyusik Sin

发明人： Yingjian Chen ,  Hugh Craig Hiner ,  Benjamin Chen ,  Xizeng Shi ,  Kyusik Sin

IPC分类号： H04R3100

CPC分类号： G11B5/3967 ,  G11B5/3109 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49062

摘要： A method and system for providing a writer is disclosed. The method and system include providing a first pole, an insulator covering a portion of the first pole and a coil on the first insulator. The coil includes a plurality of turns. The method and system also include providing a second insulator covering the coil, providing a second pole on the second insulator and providing a write gap separating a portion of the first pole from a second portion of the second pole. A first portion of the second pole is coupled with the first pole. In one aspect, the method and system include providing a coil having a plurality of turns with a pitch of no more than 1.2 micrometers. In another aspect, the plurality of turns of the coil is provided using a hard mask layer on a photoresist layer. A portion of the hard mask layer and a portion of the photoresist layer define a plurality of spaces between the pluralities of turns of the coil. In another aspect, the writer is a pedestal defined zero throat writer. In this aspect, the first insulator has a depression therein and the coil is provided on the depression.

摘要翻译： 公开了一种用于提供写入器的方法和系统。 该方法和系统包括提供第一极，覆盖第一极的一部分的绝缘体和第一绝缘体上的线圈。 线圈包括多个匝。 该方法和系统还包括提供覆盖线圈的第二绝缘体，在第二绝缘体上提供第二极，并提供将第一极的一部分与第二极的第二部分分开的写间隙。 第二极的第一部分与第一极耦合。 在一个方面，该方法和系统包括提供具有不超过1.2微米的间距的多个匝的线圈。 在另一方面，使用光致抗蚀剂层上的硬掩模层来提供线圈的多圈。 硬掩模层的一部分和光致抗蚀剂层的一部分在线圈的多圈之间限定多个空间。 在另一方面，作者是一个基座定义的零喉作家。 在这方面，第一绝缘体具有凹陷，线圈设置在凹部上。

公开(公告)号：US06650503B1

公开(公告)日：2003-11-18

申请号：US10170979

申请日：2002-06-13

申请人： Yingjian Chen ,  Ron Barr ,  Hua-Ching Tong ,  Stone Shi ,  Kyusik Sin

发明人： Yingjian Chen ,  Ron Barr ,  Hua-Ching Tong ,  Stone Shi ,  Kyusik Sin

IPC分类号： G11B5147

CPC分类号： G11B5/3163 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49044 ,  Y10T29/49046

摘要： An inductive write element for use with a magnetic data recording and retrieval system is provided. The write element includes a magnetic yoke having an electrically conductive coil passing there through. The yoke is constructed of first and second magnetic poles, and performance of the write element is improved by the inclusion of a very thin pedestal of a high magnetic moment material on the first pole in the pole tip region. Further performance gains are realized by providing a tapered edge on the pedestal to facilitate magnetic flux flow through the pedestal.

摘要翻译： 提供了一种用于磁数据记录和检索系统的感应写入元件。 写入元件包括具有通过其的导电线圈的磁轭。 轭由第一和第二磁极构成，并且通过在极尖区域的第一极上包括非常薄的高磁矩材料基座来提高写入元件的性能。 通过在基座上设置锥形边缘以促进通过基座的磁通量来实现进一步的性能增益。

公开(公告)号：US6037052A

公开(公告)日：2000-03-14

申请号：US890191

申请日：1997-07-09

申请人： Yingjian Chen ,  Mark H. Kryder

发明人： Yingjian Chen ,  Mark H. Kryder

IPC分类号： G11B5/706 ,  G11B5/66

CPC分类号： G11B5/70678 ,  Y10S428/90 ,  Y10T428/24992 ,  Y10T428/26 ,  Y10T428/265

摘要： A magnetic thin film includes a ferrite-containing underlayer and a ferrite-containing top layer. The composition of the underlayer differs from that of the top layer. During ex-situ annealing of the thin film structure, the underlayer inhibits diffusion of substrate atoms into the top layer. The composition of the underlayer relative to the top layer suppresses grain nucleation within the underlayer relative to the top layer at high temperatures and inhibits the nucleation of grains within the underlayer having undesirable composition, crystal structure, and orientation.

摘要翻译： 磁性薄膜包括含铁素体的底层和含铁素体的顶层。 底层的组成不同于顶层的组成。 在薄膜结构的非原位退火期间，底层抑制底物原子扩散到顶层。 底层相对于顶层的组成在高温下相对于顶层抑制底层内的晶粒成核，并抑制底层内的晶粒的成核具有不理想的组成，晶体结构和取向。

公开(公告)号：US08455119B1

公开(公告)日：2013-06-04

申请号：US13118218

申请日：2011-05-27

申请人： Hai Jiang ,  Kyusik Sin ,  Yingjian Chen

发明人： Hai Jiang ,  Kyusik Sin ,  Yingjian Chen

IPC分类号： G11B5/66

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/313 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T428/12465

摘要： A magnetic disk includes a substrate, a soft magnetic underlayer disposed over the substrate, and a media layer disposed over the underlayer. The underlayer includes a plurality of magnetic layers each containing FeCoN having an atomic concentration of iron that is greater than an atomic concentration of cobalt, and has an atomic concentration of nitrogen that is less than the atomic concentration of cobalt. The atomic concentration of nitrogen is less than eight percent. The underlayer includes a plurality of nonmagnetic layers that are interleaved with the magnetic layers. Each of the nonmagnetic layers has a thickness that is less than one-tenth that of an adjoining layer of the magnetic layers. The media layer contains a magnetically hard material having an easy axis of magnetization oriented substantially perpendicular to both the media layer and the underlayer.

摘要翻译： 磁盘包括衬底，设置在衬底上的软磁性底层，以及设置在衬底上的介质层。 底层包括多个磁性层，每个磁性层含有铁原子浓度大于钴的原子浓度的FeCoN，并且其原子浓度小于钴的原子浓度。 原子浓度低于8％。 底层包括与磁性层交错的多个非磁性层。 每个非磁性层的厚度小于磁性层相邻层的十分之一。 介质层包含磁性硬的材料，其易磁化轴定向成基本垂直于介质层和底层。