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1. 发明授权

US07522379B1 Write element with recessed pole and heat sink layer for ultra-high density writing 有权
标题翻译：写入元件具有凹陷极和散热层，用于超高密度写入
公开(公告)号：US07522379B1
公开(公告)日：2009-04-21
申请号：US10909226
申请日：2004-07-30
申请人： Mohamad T. Krounbi , Yining Hu , Ming Zhao , Kenneth Kung , Mark D. Thomas , Kroum S. Stoev , Francis H. Liu , Marcos M. Lederman
发明人： Mohamad T. Krounbi , Yining Hu , Ming Zhao , Kenneth Kung , Mark D. Thomas , Kroum S. Stoev , Francis H. Liu , Marcos M. Lederman
IPC分类号： G11B5/147
CPC分类号： G11B5/3133
摘要： A head including a write element for writing data to a magnetic media, and methods for its production are provided. A write element of the invention includes one or more of a recessed first pole, a heat sink layer, and a shortened yoke length. A method of the invention provides forming an anti-reflective layer before forming a mask layer. During photolithography the anti-reflective layer suppresses undesirable reflections off of features, such as vertical sidewalls, that otherwise limit how closely to such features portions of the mask layer can be formed.
摘要翻译：提供一种包括用于向磁性介质写入数据的写入元件的头，以及用于其生产的方法。本发明的写入元件包括凹入的第一极，散热层和缩短的磁轭长度中的一个或多个。本发明的方法提供了在形成掩模层之前形成抗反射层。在光刻期间，抗反射层抑制了诸如垂直侧壁的特征（例如垂直侧壁）的不期望的反射，否则可以限制与这些特征的接近程度，可以形成掩模层的部分。

2. 发明授权

US07283327B1 Magnetic write head having resistive heater coil 失效
标题翻译：具有电阻加热线圈的磁写头
公开(公告)号：US07283327B1
公开(公告)日：2007-10-16
申请号：US11451770
申请日：2006-06-13
申请人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
发明人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
IPC分类号： G11B5/17 , G11B5/56 , G11B21/02
CPC分类号： G11B5/60 , G11B5/6064
摘要： A magnetic write head includes a magnetic yoke having a first pole and a second pole. The first pole and the second pole each terminate at an air bearing surface. The first pole is magnetically coupled to the second pole in a backgap region. The magnetic write head further includes a electrically conductive write coil magnetically coupled to the magnetic yoke. The magnetic write head further includes a resistive heater coil having a first coil turn and a second coil turn. The heater coil is electrically isolated from the write coil. At least a portion of the first coil turn is between the first pole and the second pole and between the air bearing surface and the backgap region. At least a portion of the second coil turn is between the first pole and the second pole and between the air bearing surface and the backgap region. The portion of the first coil turn overlaps the portion of the second coil turn.
摘要翻译：磁写头包括具有第一极和第二极的磁轭。第一极和第二极各自终止于空气轴承表面。第一极在后隙区域磁耦合到第二极。磁写头还包括磁耦合到磁轭的导电写入线圈。磁写头还包括具有第一线圈匝和第二线圈匝的电阻加热器线圈。加热器线圈与写入线圈电隔离。第一线圈匝的至少一部分在第一极和第二极之间以及空气支承表面和后隙区之间。第二线圈匝的至少一部分在第一极和第二极之间以及空气支承表面和后隙区之间。第一线圈圈的部分与第二线圈匝的部分重叠。

3. 发明授权

US07092195B1 Method of using a magnetic write head having an internal heater 有权
标题翻译：使用具有内部加热器的磁性写入头的方法
公开(公告)号：US07092195B1
公开(公告)日：2006-08-15
申请号：US10856403
申请日：2004-05-28
申请人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
发明人： Francis H. Liu , Kroum S. Stoev , Mohamad T. Krounbi
IPC分类号： G11B21/02
CPC分类号： G11B5/60 , G11B5/6064
摘要： A method adjusts a flying-height distance between a magnetic write head and a magnetic medium. The method includes positioning the write head in a location spaced from the magnetic medium by the flying-height distance. The write head includes a magnetic yoke and a proximal region in proximity to the magnetic medium. The write head further includes a resistive heater and at least a portion of the resistive heater is within the magnetic yoke and is in proximity to the proximal region. The resistive heater is configured to heat the proximal region. The proximal region has a coefficient of thermal expansion. The proximal region is configured to expand and to contract in response to a temperature of the proximal region. The method further includes flowing an electric current through the resistive heater. The method further includes controlling the electric current to adjust the temperature of the proximal region to selectively expand and contract the proximal region and thereby control the flying-height distance. Controlling the electric current includes pulsing the electrical current and adjusting a time interval between pulses.
摘要翻译：一种方法调节磁写头和磁介质之间的飞行高度距离。该方法包括将写入头定位在与磁介质隔开飞行高度距离的位置。写磁头包括磁轭和靠近磁介质的近侧区域。写头还包括电阻加热器，并且电阻加热器的至少一部分在磁轭内并且靠近近端区域。电阻加热器被配置为加热近端区域。近端区域具有热膨胀系数。近端区域被配置为响应于近端区域的温度膨胀和收缩。该方法还包括使电流流过电阻加热器。该方法还包括控制电流以调节近端区域的温度以选择性地扩展和收缩近端区域，从而控制飞行高度距离。控制电流包括脉冲电流和调节脉冲之间的时间间隔。

4. 发明授权

US07286329B1 GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers 失效
标题翻译： GMR传感器具有与自由传感器层对准的浅连续结和偏置层
公开(公告)号：US07286329B1
公开(公告)日：2007-10-23
申请号：US10788656
申请日：2004-02-27
申请人： Yingjian Chen , Wei Zhang , Mohamad T. Krounbi , Satoru Araki , Jinqiu Zhang
发明人： Yingjian Chen , Wei Zhang , Mohamad T. Krounbi , Satoru Araki , Jinqiu Zhang
IPC分类号： G11B5/39
CPC分类号： G01R31/318357 , G11B5/3932
摘要： A magnetic sensor is disclosed having a shallow contiguous junction. Such a sensor is can greatly increase yield for mass-produced heads, especially for large wafers. The magnetic bias layers can be aligned with a free layer of the sensor, improving performance. Milling may be terminated prior to penetration of an antiferromagnetic layer, so that for example the antiferromagnetic layer may extend significantly beyond the free and pinned layers of the sensor.
摘要翻译：公开了一种具有浅连续结的磁传感器。这种传感器可以大大提高批量生产头部的产量，特别是对于大型晶片。磁偏置层可以与传感器的自由层对准，从而提高性能。铣削可以在穿透反铁磁层之前终止，使得例如反铁磁层可以显着地延伸超过传感器的自由和固定层。

5. 发明授权

US07006327B2 Thin film recording head with a buried coil providing a shortened yoke and improved dimension control 失效
标题翻译：具有埋线圈的薄膜记录头提供缩短的轭和改进的尺寸控制
公开(公告)号：US07006327B2
公开(公告)日：2006-02-28
申请号：US10375539
申请日：2003-02-27
申请人： Mohamad T. Krounbi , Ming Zhao , Yining Hu , Jim Watterston
发明人： Mohamad T. Krounbi , Ming Zhao , Yining Hu , Jim Watterston
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A writer for magnetic recording heads. The writer includes a bottom magnetic pole and a write gap formed over the bottom pole and a coil trench formed in the bottom pole. A top magnetic pole is provided as two layers with the first layer including front and back tips with spaced apart walls positioned adjacent the trench bottom defining trench sides. A pole cover layer is included that is made up of a thin layer of insulating material deposited to cover the sides and bottom of the coil trench. A bottom coil is formed on the pole cover layer in the bottom of the coil trench and coil insulation is provided between the coil elements and adjacent the trench walls and covering the coil. A top coil with insulation is formed over the planarized bottom coil insulation and the top pole second layer is formed over the top coil.
摘要翻译：磁记录头的作者。写入器包括形成在底极上的底部磁极和写入间隙以及形成在底部极中的线圈沟槽。顶部磁极设置为两层，其中第一层包括前部和后部末端，间隔开的壁定位在沟槽底部限定沟槽侧面附近。包括极覆盖层，其由沉积以覆盖线圈沟槽的侧面和底部的绝缘材料的薄层构成。底线圈形成在线圈沟槽底部的极覆盖层上，线圈绝缘体设置在线圈元件之间并邻近沟槽壁并覆盖线圈。在平坦化的底部线圈绝缘体上形成具有绝缘的顶部线圈，并且顶部第二层形成在顶部线圈上。

6. 发明授权

US5435053A Simplified method of making merged MR head 失效
标题翻译：合并MR头的简化方法
公开(公告)号：US5435053A
公开(公告)日：1995-07-25
申请号：US205006
申请日：1994-03-02
申请人： Mohamad T. Krounbi , James H. Lee
发明人： Mohamad T. Krounbi , James H. Lee
IPC分类号： G11B5/00 , G11B5/31 , G11B5/39 , G11B5/48 , G11B3/42
CPC分类号： G11B5/3967 , G11B5/3116 , G11B5/312 , G11B5/313 , G11B5/3163 , G11B5/488 , G11B5/00 , Y10T29/49032 , Y10T29/49039 , Y10T29/49064
摘要： An improved method of manufacturing is provided for making an improved merged MR head. The method employs a photoresist mask with appropriately-sized openings for simultaneously etching numerous vias to various depths over a set time period. After formation of the vias, a single photoresist mask is employed to pattern in one step gap layers G3, G2, G1 and a first shield layer S1 to the desired lateral configuration for the merged MR head. Subsequent to patterning these thin film layers, double insulation layers I2 and I3 are individually soft baked on top of the coil structure of the head followed by patterning of the layers I2/I3 by a single photoresist mask. These layers are then hard baked to retain the desired smooth configuration of the layers. The improved merged MR head has a smooth configuration to its top pole piece P2 because of the smooth configuration of the I2/I3 layer so that flux leakage and saturation problems are minimized.
摘要翻译：提供了一种改进的制造方法，用于制造改进的合并MR头。该方法采用具有适当大小的开口的光致抗蚀剂掩模，用于在设定的时间段内同时将多个通孔蚀刻到各种深度。在形成通孔之后，使用单个光致抗蚀剂掩模将一级间隙层G3，G2，G1和第一屏蔽层S1图案化成用于合并的MR头的期望的横向配置。在图案化这些薄膜层之后，双重绝缘层I2和I3在头部的线圈结构的顶部上单独软烘烤，然后通过单个光致抗蚀剂掩模图案化层I2 / I3。然后将这些层硬烘烤以保持层的期望的平滑构型。由于I2 / I3层的平滑配置，改进的合并MR磁头对其顶极片P2具有平滑的配置，使得磁通泄漏和饱和问题最小化。

7. 发明授权

US5285339A Magnetoresistive read transducer having improved bias profile 失效
标题翻译：具有改进的偏置轮廓的磁阻读取传感器
公开(公告)号：US5285339A
公开(公告)日：1994-02-08
申请号：US843702
申请日：1992-02-28
申请人： Mao-Min Chen , Kochan Ju , Mohamad T. Krounbi , Ching H. Tsang , Po-Kang Wang
发明人： Mao-Min Chen , Kochan Ju , Mohamad T. Krounbi , Ching H. Tsang , Po-Kang Wang
IPC分类号： G11B5/39 , G11B5/127
CPC分类号： G11B5/3903
摘要： An MR read transducer having passive end regions separated by a central active region comprises an MR layer made from a material having a low uniaxial magnetic anisotropy. A soft magnetic bias layer is adjacent to but spaced from the MR layer in the central region only, and the soft magnetic bias layer is made from a material having a high uniaxial magnetic anisotropy. A longitudinal bias is produced directly in each of the end regions only, and the means for producing the longitudinal bias comprise a layer made from a material having a high uniaxial magnetic anisotropy. Control of the uniaxial anisotropy can be achieved by choosing materials of appropriate magnetostriction or intrinsic uniaxial anisotropy.
摘要翻译：具有由中心有源区域分离的无源端区域的MR读取传感器包括由具有低单轴磁各向异性的材料制成的MR层。软磁偏置层仅与中心区域中的MR层相邻但间隔开，并且软磁偏置层由具有高单轴磁各向异性的材料制成。仅在每个端部区域中直接产生纵向偏压，并且用于产生纵向偏压的装置包括由具有高单轴磁各向异性的材料制成的层。单轴各向异性的控制可以通过选择适当的磁致伸缩材料或固有单轴各向异性来实现。

8. 发明授权

US5079035A Method of making a magnetoresistive read transducer having hard magnetic bias 失效
标题翻译：制造具有硬磁偏置的磁阻读取传感器的方法
公开(公告)号：US5079035A
公开(公告)日：1992-01-07
申请号：US629503
申请日：1990-12-18
申请人： Mohamad T. Krounbi , Otto Voegeli , Po-Kang Wang
发明人： Mohamad T. Krounbi , Otto Voegeli , Po-Kang Wang
IPC分类号： G11B5/39
CPC分类号： G11B5/3903 , Y10T29/49044 , Y10T29/49046 , Y10T29/49067
摘要： A magnetoresistive (MR) read transducer having passive end regions separated by a central active region in which an MR layer is formed which extends over substantially only the central active region and in which a hard magnetic layer is formed in each end region. The hard magnetic layers form an abutting junction having electrical and magnetic continuity with the MR layer to produce a longitudinal bias in the MR sensor. The transducer is produced by a method in which the same stencil defines the extent of both the MR layer and the hard magnetic layers so that the abutting junctions are formed easily and reliably.
摘要翻译：磁阻（MR）读取传感器，其具有被中心有源区域分开的被动端区域，其中形成MR层，其基本上仅在中心有源区域上延伸，并且在每个端部区域中形成硬磁性层。硬磁性层形成与MR层具有电连接性和磁性连续性的邻接结，以在MR传感器中产生纵向偏置。传感器通过一种方法制造，其中相同的模版限定了MR层和硬磁性层的程度，使得邻接接合部容易且可靠地形成。

9. 发明授权

US07691434B1 Method for fabricating magnetoresistive read head having a bias structure with at least one dusting layer 失效
标题翻译：一种用于制造具有至少一个除尘层的偏置结构的磁阻读头的方法
公开(公告)号：US07691434B1
公开(公告)日：2010-04-06
申请号：US11971398
申请日：2008-01-09
申请人： Wei Zhang , Yingjian Chen , Satoru Araki , Mohamad T. Krounbi
发明人： Wei Zhang , Yingjian Chen , Satoru Araki , Mohamad T. Krounbi
IPC分类号： G11B5/39 , C23C14/46
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3163 , G11B5/3932 , G11B2005/3996
摘要： A method of fabricating a bias structure of a magnetoresistive read head for a magnetoresistive sensor stack formed on a substrate includes forming an underlayer and forming a bias layer over the underlayer. The method further includes forming a dusting layer directly below at least one of the underlayer or the bias layer and between the bias layer and the magnetoresistive sensor stack. The dusting layer includes discontinuous, nano-sized islands.
摘要翻译：制造用于形成在衬底上的磁阻传感器堆叠的磁阻读取头的偏置结构的方法包括形成底层并在衬底上形成偏置层。该方法还包括在底层或偏置层之间以及偏置层和磁阻传感器堆叠之间的至少一个下直接形成除尘层。除尘层包括不连续的纳米尺寸岛。

10. 发明授权

US06975486B2 Thin film write head having a laminated, flat top pole with bottom shaper and method of fabrication 失效
标题翻译：薄膜写头，具有具有底部整形器的层叠平顶顶和制造方法
公开(公告)号：US06975486B2
公开(公告)日：2005-12-13
申请号：US10213339
申请日：2002-08-06
申请人： Yingjian Chen , Xiaozhong Dang , Mohamad T. Krounbi , George V. Kelley
发明人： Yingjian Chen , Xiaozhong Dang , Mohamad T. Krounbi , George V. Kelley
IPC分类号： G11B5/31 , G11B5/33 , G11B5/147
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/3153 , G11B5/3163 , G11B5/332
摘要： A writer for high frequency, data storage heads. The writer includes a first magnetic pole upon which a write gap pedestal is formed with an upper pedestal layer of high moment material with a planar upper surface. An electrical coil is formed on the first magnetic pole. A write gap layer is deposited on the upper surface of the upper pedestal layer. The writer includes a second magnetic pole disposed above the first magnetic pole with a magnetic, flat, top pole layer. The second magnetic pole includes a bottom shaper fabricated from high moment material positioned between the coil and the top pole layer. An insulation insert separates the bottom shaper from the upper pedestal layer. The second magnetic pole includes a thin dielectric lamination layer that separates the top pole layer from the bottom shaper to disrupt the path of eddy current in the second magnetic pole.
摘要翻译：高频数据存储头的写入器。写入器包括第一磁极，写入间隙基座形成有具有平坦上表面的高力矩材料的上基座层。在第一磁极上形成电线圈。写间隙层沉积在上基座层的上表面上。写入器包括设置在具有磁性，平坦的顶极层的第一磁极上方的第二磁极。第二磁极包括由位于线圈和顶极层之间的高力矩材料制成的底部整形器。绝缘插件将底部整形器与上基座层分开。第二磁极包括将顶极层与底部整形器分离以破坏第二磁极中涡流的路径的薄介电层压层。

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