公开(公告)号：US06943993B2

公开(公告)日：2005-09-13

申请号：US10364799

申请日：2003-02-11

申请人： Thomas Young Chang ,  Yingjian Chen ,  Jing Zhang ,  Heng Gong

发明人： Thomas Young Chang ,  Yingjian Chen ,  Jing Zhang ,  Heng Gong

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3103 ,  G11B5/313 ,  G11B5/3143 ,  G11B5/3146 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3929 ,  G11B5/3935 ,  G11B2005/3996 ,  Y10T29/49044

摘要： Side shield structures magnetically shielding a read sensor to block side reading of tracks on a magnetic media. The read heads include bottom and top magnetic shield layers, a read sensor or magnetically sensitive element between the bottom and top magnetic shield layers, and a side shield assembly formed of magnetically shielding material positioned between the bottom and top magnetic shield layers and adjacent at least a portion of the read sensor. In current-in-plane embodiments, the side shield assembly includes a pair of side shields of magnetically shielding material adjacent a lower portion of the read sensor formed on a lower read gap. In current-perpendicular-to-plane embodiments, the side shield assembly includes a pair of side shields extending from the bottom magnetic shield adjacent lower sides of the read sensor and/or a pair of side shields extending from the top magnetic shield adjacent upper sides of the read sensor.

摘要翻译： 侧屏蔽结构磁屏蔽读取传感器以阻止磁性介质上的磁道的侧面读取。 读头包括底部和顶部磁屏蔽层，在底部和顶部磁屏蔽层之间的读取传感器或磁敏元件，以及由屏蔽材料形成的侧屏蔽组件，该屏蔽组件位于底部和顶部磁屏蔽层之间并且至少相邻 读取传感器的一部分。 在当前平面实施例中，侧屏蔽组件包括一对磁屏蔽材料的侧屏蔽件，该屏蔽材料与形成在下读取间隙上的读取传感器的下部相邻。 在电流垂直于平面的实施例中，侧屏蔽组件包括一对侧屏蔽件，其从底部磁屏蔽件邻近读取传感器的下侧延伸，和/或一对侧屏蔽件从顶部磁屏蔽件邻近上侧延伸 的读取传感器。

公开(公告)号：US06870712B2

公开(公告)日：2005-03-22

申请号：US09875601

申请日：2001-06-05

申请人： Yingjian Chen ,  James Wang ,  Qing He ,  Zi-Wen Dong ,  David J. Seagle

发明人： Yingjian Chen ,  James Wang ,  Qing He ,  Zi-Wen Dong ,  David J. Seagle

IPC分类号： G11B5/012 ,  G11B5/31 ,  G11B5/33 ,  G11B5/39 ,  G11B5/147

CPC分类号： G11B5/3967 ,  G11B5/012 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3146 ,  Y10T29/49044

摘要： A disk drive write head (10) having a bottom pole (60), a first insulation layer (64) formed on the bottom pole (60), a coil (38) formed on the first insulation layer (64), a second insulation layer (66) formed on the coil (38), a write gap layer (76) formed on the second insulation layer (66), and a top pole (12) formed on the write gap layer (76), where the top pole (12) is substantially flat.A second embodiment (100) is described which is produced by a damascene process.

摘要翻译： 具有底极（60）的盘驱动器写入头（10），形成在所述底极（60）上的第一绝缘层（64），形成在所述第一绝缘层（64）上的线圈（38） 形成在线圈（38）上的层（66），形成在第二绝缘层（66）上的写间隙层（76）和形成在写间隙层（76）上的顶极（12） （12）基本上是平的。描述了通过镶嵌工艺制造的第二实施例（100）。

公开(公告)号：US20050007696A1

公开(公告)日：2005-01-13

申请号：US10903977

申请日：2004-07-29

申请人： Yingjian Chen ,  Xiaozhong Dang ,  Francis Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

发明人： Yingjian Chen ,  Xiaozhong Dang ,  Francis Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

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

CPC分类号： G11B5/1278 ,  G11B5/3109 ,  Y10T29/49034 ,  Y10T29/49044

摘要： A read/write head and method of making the same are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with a main pole made of sputtered high moment magnetic material, and an adjunct pole made of electroplated soft magnetic film. The main pole is used to write data onto the medium, and is formed over the write coil. The adjunct pole is substantially recessed from the air bearing surface and is formed over the main pole. The present head design significantly enhances the magnetic write field, and substantially reduces side-writing that result in accidental erasure of data in adjacent tracks on the magnetic recording medium.

公开(公告)号：US06791793B1

公开(公告)日：2004-09-14

申请号：US09952989

申请日：2001-09-14

申请人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

发明人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

IPC分类号： G11B5147

CPC分类号： G11B5/1278 ,  G11B5/3109 ,  Y10T29/49034 ,  Y10T29/49044

摘要： A read/write head and method of making the same, are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with a main pole made of sputtered high moment magnetic material, and an adjunct pole made of electroplated soft magnetic film. The adjunct pole is substantially recessed from the air bearing surface. The present head design significantly enhances the magnetic write field, and substantially reduces side-writing that result in accidental erasure of data in adjacent tracks on the magnetic recording medium.

摘要翻译： 读/写头及其制造方法用于数据存储系统，例如磁盘驱动器，用于数据的垂直磁记录。 头部采用双层极设计，其主极由溅射高磁矩材料制成，电极由电镀软磁膜制成。 附加杆基本上从空气轴承表面凹入。 本头设计显着增强了磁写入场，并且基本上减少了导致磁记录介质上的相邻轨道中的数据的意外擦除的侧写。

公开(公告)号：US06778358B1

公开(公告)日：2004-08-17

申请号：US10137030

申请日：2002-05-01

申请人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi

发明人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi

IPC分类号： G11B539

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

摘要： In one aspect, a laminated structure including a first plurality of layers containing primarily-iron FeCoN interleaved with a second plurality of layers containing primarily iron FeNi is disclosed. The structure has an easy axis of magnetization and a hard axis of magnetization, has a magnetic saturation of at least about twenty-three-thousand Gauss, and has a magnetic coercivity measured substantially along its hard axis of magnetization that is less than two Oersted. Additional elements can be added in minority concentrations to form primarily-iron FeCoN layers with increased resistivity. The laminated structure has applicability in various fields in which high saturation magnetization, magnetically soft materials are advantageous, particularly for inductive heads.

摘要翻译： 一方面，公开了一种叠层结构，其包括主要包含铁FeCoN的第一多个层，所述第一多个层与主要包含铁FeNi的第二多个层交错。 该结构具有容易的磁化轴和硬磁化轴，具有至少约二十三万高斯的磁饱和度，并且具有基本上沿其低于两个奥斯特的硬磁化轴测量的磁矫顽力。 可以以少数浓度添加额外的元素以形成具有增加的电阻率的主要的FeCoN层。 层压结构在各种领域中具有适用性，其中高饱和磁化强度，磁软材料是有利的，特别是对于感应头。

公开(公告)号：US06737281B1

公开(公告)日：2004-05-18

申请号：US10042673

申请日：2002-01-08

申请人： Xiaozhong Dang ,  Yingjian Chen ,  Aiguo Feng

发明人： Xiaozhong Dang ,  Yingjian Chen ,  Aiguo Feng

IPC分类号： H01L2100

CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/3163

摘要： A method of making an inductive transducer having inorganic nonferromagnetic material disposed in an apex region adjacent to a submicron nonferromagnetic gap in a magnetic core. The inorganic nonferromagnetic apex region can be made by chemical etching of a layer of inorganic nonferromagnetic material, deposition of inorganic nonferromagnetic material through a mask that is then lifted-off, or anisotropic etching of a layer of inorganic nonferromagnetic material that is covered by a hardbaked photoriesist mask.

摘要翻译： 一种制造具有无机非铁磁材料的电感式换能器的方法，其设置在与磁芯中的亚微米非铁磁间隙相邻的顶点区域中。 无机非铁磁顶点区域可以通过化学蚀刻一层无机非铁磁材料，通过掩模沉积无机非铁磁材料，然后将其剥离，或者通过硬质材料覆盖的无机非铁磁材料层进行各向异性蚀刻 光学面具。

公开(公告)号：US06724569B1

公开(公告)日：2004-04-20

申请号：US10227171

申请日：2002-08-23

申请人： Yingjian Chen ,  Kyusik Sin ,  Ronald A. Barr

发明人： Yingjian Chen ,  Kyusik Sin ,  Ronald A. Barr

IPC分类号： G11B523

CPC分类号： G11B5/3163 ,  G11B5/17 ,  G11B5/23 ,  G11B5/232 ,  G11B5/235 ,  G11B5/3106 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/40

摘要： Embodiments in accordance with the thin film write head of the present invention have a lower pole structure, an upper pole structure, and a multilayer write gap extending from an air bearing surface between the upper and lower pole structures. In preferred embodiments, the write gap comprises at least two of: (a) a first layer covering a lower pole tip portion of the lower pole structure, (b) a second layer covering turns of a semiconductor winding, or (c) a third layer covering a winding insulation stack. In more preferred embodiments, the write gap is formed of the first, the second, and the third write gap layers. An advantage of a write head with a multilayer write gap is that it allows better control of write gap thickness. As such, loss of write gap thickness can be compensated for by deposition of the second write gap layers, or by deposition of the third write gap layer. Some embodiments have one or more additional advantages in providing increased corrosion prevention, improving the integrity of conductor insulation, and/or improving the top pole magnetic material characteristics.

摘要翻译： 根据本发明的薄膜写入头的实施例具有从上和下极结构之间的空气轴承表面延伸的下极结构，上极结构和多层写入间隙。 在优选实施例中，写入间隙包括以下中的至少两个：（a）覆盖下极结构的下极尖端部分的第一层，（b）覆盖半导体绕组的匝的第二层，或（c） 覆盖绕组绝缘堆叠的层。 在更优选的实施例中，写入间隙由第一，第二和第三写入间隙层形成。 具有多层写入间隙的写入头的优点在于它可以更好地控制写入间隙厚度。 因此，可以通过沉积第二写间隙层或通过沉积第三写间隙层来补偿写间隙厚度的损失。 一些实施例在提供增加的防腐蚀性能，改善导体绝缘的完整性和/或改善顶极磁性材料特性方面具有一个或多个附加优点。

公开(公告)号：US06700738B1

公开(公告)日：2004-03-02

申请号：US09810819

申请日：2001-03-16

申请人： Kyusik Sin ,  Yingjian Chen

发明人： Kyusik Sin ,  Yingjian Chen

IPC分类号： G11B517

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3103 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/332 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996

摘要： A thin film read/write head with a high performance inductive write section that incorporates a single layer coil with an improved fabrication method of a center tab of the single layer coil. The center tab is formed before the main body of the single layer coil is formed. Several advantages can thus be achieved. The coil resistance and inductance can be monitored for all the devices immediately after the coil fabrication to improve yield by identifying additional processing or rework before final production. Several conventional wafer processing steps can be eliminated, thereby shortening the cycle time of wafer processing. The chance of corrosion or delamination of the second pole P2 is significantly reduced.

摘要翻译： 具有高性能电感写入部分的薄膜读/写头，其包含单层线圈，具有改进的单层线圈的中心突片的制造方法。 中心突片形成在形成单层线圈的主体之前。 因此可以实现几个优点。 线圈电阻和电感可以在线圈制造之后立即对所有器件进行监控，以通过在最终生产之前识别附加处理或返工来提高产量。 可以消除几个常规的晶片处理步骤，从而缩短晶片处理的周期时间。 第二极P2的腐蚀或分层的可能性显着降低。

公开(公告)号：US06618223B1

公开(公告)日：2003-09-09

申请号：US09617791

申请日：2000-07-18

申请人： Yingjian Chen ,  Hua-Ching Tong ,  Lei Wang ,  Xizeng Shi

发明人： Yingjian Chen ,  Hua-Ching Tong ,  Lei Wang ,  Xizeng Shi

IPC分类号： G11B5147

CPC分类号： G11B5/3146 ,  G11B5/3109 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49071 ,  Y10T29/49073

摘要： An inductive write element is disclosed for use in a magnetic data recording system. The write element provides increased data rate and data density capabilities through improved magnetic flux flow through the element. The write element includes a magnetic yoke constructed of first and second magnetic poles. The first pole includes a pedestal constructed of a high magnetic moment (high Bsat) material, which is preferably FeRhN nanocrystalline films with lamination layers of CoZrCr. The second pole includes a thin inner layer of high Bsat material (also preferably FeRhN nanocrystalline films with lamination layers of CoZrCr), the remainder being constructed of a magnetic material capable of being electroplated, such as a Ni—Fe alloy. An electrically conductive coil passes through the yoke between the first and second poles to induce a magnetic flux in the yoke when an electrical current is caused to flow through the coil. Magnetic flux in the yoke produces a fringing field at a write gap whereby a signal can be imparted onto a magnetic medium passing thereby.

摘要翻译： 公开了用于磁数据记录系统的感应写入元件。 写元件通过改善通过元件的磁通量提供增加的数据速率和数据密度能力。 写元件包括由第一和第二磁极构成的磁轭。 第一极包括由高磁矩（高Bsat）材料构成的基座，其优选为具有CoZrCr层压层的FeRhN纳米晶体膜。 第二极包括具有高Bsat材料的薄内层（还优选具有CoZrCr层压层的FeRhN纳米晶膜），其余部分由能够电镀的磁性材料如Ni-Fe合金构成。 导电线圈通过第一和第二极之间的磁轭，当电流流过线圈时，引起磁轭中的磁通量。 轭中的磁通在写入间隙产生边缘场，由此可以将信号传递到通过的磁介质上。

公开(公告)号：US06430806B1

公开(公告)日：2002-08-13

申请号：US09602536

申请日：2000-06-23

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。