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42 条记录 (耗时 0.024 秒)

    Peak enhanced magnetoresistive read transducer
    1.
    发明授权
    Peak enhanced magnetoresistive read transducer 失效
    峰值增强型磁阻读取传感器

    公开(公告)号：US5581427A

    公开(公告)日：1996-12-03

    申请号：US238110

    申请日：1994-05-04

    申请人： Joseph Shao-Ying Feng ,  Mohamad T. Krounbi ,  Douglas J. Werner

    发明人： Joseph Shao-Ying Feng ,  Mohamad T. Krounbi ,  Douglas J. Werner

    IPC分类号： G11B5/00 ,  G11B5/09 ,  G11B5/39 ,  G11B5/30

    CPC分类号： G11B5/3932 ,  G11B5/00 ,  G11B5/3903 ,  G11B2005/0008 ,  G11B5/09

    摘要： An MR read transducer is provided which has a central region located between a pair of end regions. The central region and the pair of end regions extend along a width of the MR read transducer. An MR layer extends along the width of the MR read transducer and has an active layer portion located between a pair of passive layer portions, the active layer portion being located in the central region and each passive layer portion being located in a respective end region. A layer is located in the central region and magnetostatically coupled to the active layer portion of the MR layer for transversely biasing the MR layer. Each passive layer portion of the MR layer is permeable so that it is responsive to externally applied magnetic fields. The passive layer portions of the MR layer are the only permeable portions of the MR read transducer in the end regions of the MR read transducer, so a response by either passive layer of the MR layer to a magnetic signal will result in a supralinearly increased net response of the active portion of the MR layer to the same applied magnetic field signal. This arrangement increases the amplitude and the sharpness of the peak of a signal response of the MR read transducer to the field from a recorded transition.

    摘要翻译： 提供了一种MR读取换能器，其具有位于一对端部区域之间的中心区域。 中心区域和一对末端区域沿着MR读取换能器的宽度延伸。 MR层沿着MR读取换能器的宽度延伸，并且具有位于一对无源层部分之间的有源层部分，有源层部分位于中心区域中，每个无源层部分位于相应的端部区域中。 层位于中心区域并且静磁耦合到MR层的有源层部分以横向偏置MR层。 MR层的每个无源层部分是可渗透的，使得其响应于外部施加的磁场。 MR层的无源层部分是MR读取换能器的端部区域中的MR读取换能器的唯一可渗透部分，因此MR层的无源层对磁信号的响应将导致网络上部网络 MR层的有源部分对相同的施加的磁场信号的响应。 这种布置将MR读取传感器的信号响应的峰值的幅度和锐度从记录的转变增加到场。

    Azo dyes as adhesion promotion additive in polydimethylglutarimide
    2.
    发明授权
    Azo dyes as adhesion promotion additive in polydimethylglutarimide 失效
    偶氮染料作为粘合促进剂在聚二甲基戊二酰亚胺中

    公开(公告)号：US5532109A

    公开(公告)日：1996-07-02

    申请号：US542479

    申请日：1995-10-13

    申请人： Mohamad T. Krounbi ,  Alfred F. Renaldo ,  Douglas J. Werner

    发明人： Mohamad T. Krounbi ,  Alfred F. Renaldo ,  Douglas J. Werner

    IPC分类号： G03F7/085 ,  H05K3/14 ,  G03F7/26

    CPC分类号： G03F7/085 ,  H05K3/143

    摘要： In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These azo dyes, due to their chemical structure, exhibit selective binding to various metals by acting as a chelating ligand to the metal surface. Formulations of a specific azo dye, Sudan Orange G, at concentrations from 0.25 to 1.0 percent (by weight) in PMGI exhibits no loss of adhesion at prebake temperatures in the range of 120 to 160 degrees C.

    摘要翻译： 在双层剥离过程中，通过使用邻羟基取代的4-苯基偶氮化合物（偶氮染料）作为一种非活性染料作为粘合促进剂添加剂，使PMGI释放层的粘合特性得到显着改善。 由于它们的化学结构，这些偶氮染料通过充当金属表面的螯合配体而显示出对各种金属的选择性结合。 在PMGI中浓度为0.25-1.0％（重量）的特定偶氮染料，苏丹橙G的配方在预烘烤温度在120至160℃的范围内表现出没有损失。

    Azo dyes as adhesion promotion additive in polydimethylglutarimide
    3.
    发明授权
    Azo dyes as adhesion promotion additive in polydimethylglutarimide 失效
    偶氮染料作为粘合促进剂在聚二甲基戊二酰亚胺中

    公开(公告)号：US5604073A

    公开(公告)日：1997-02-18

    申请号：US453027

    申请日：1995-05-30

    申请人： Mohamad T. Krounbi ,  Alfred F. Renaldo ,  Douglas J. Werner

    发明人： Mohamad T. Krounbi ,  Alfred F. Renaldo ,  Douglas J. Werner

    IPC分类号： G03F7/085 ,  H05K3/14 ,  G03F7/00

    CPC分类号： G03F7/085 ,  H05K3/143

    摘要： In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These azo dyes, due to their chemical structure, exhibit selective binding to various metals by acting as a chelating ligand to the metal surface. Formulations of a specific azo dye, Sudan Orange G, at concentrations from 0.25 to 1.0 percent (by weight) in PMGI exhibits no loss of adhesion at prebake temperature in the range of 120 to 160 degrees C.

    摘要翻译： 在双层剥离过程中，通过使用邻羟基取代的4-苯基偶氮化合物（偶氮染料）作为一种非活性染料作为粘合促进剂添加剂，使PMGI释放层的粘合特性得到显着改善。 由于它们的化学结构，这些偶氮染料通过充当金属表面的螯合配体而显示出对各种金属的选择性结合。 PMGI浓度为0.25〜1.0％的特定偶氮染料，苏丹橙G的配方，在预烘温度为120〜160℃的范围内，没有粘附损失。

    GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers
    5.
    发明授权
    GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers 失效
    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。

    Thin film recording head with a buried coil providing a shortened yoke and improved dimension control
    6.
    发明授权
    Thin film recording head with a buried coil providing a shortened yoke and improved dimension control 失效
    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。

    Simplified method of making merged MR head
    7.
    发明授权
    Simplified method of making merged MR head 失效
    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。

    Magnetoresistive read transducer having improved bias profile
    8.
    发明授权
    Magnetoresistive read transducer having improved bias profile 失效
    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。

    Method of making a magnetoresistive read transducer having hard magnetic bias
    9.
    发明授权
    Method of making a magnetoresistive read transducer having hard magnetic bias 失效
    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。