专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US06708390B2 Method for manufacturing magnetoresistive element 失效
标题翻译：制造磁阻元件的方法
公开(公告)号：US06708390B2
公开(公告)日：2004-03-23
申请号：US10421989
申请日：2003-04-23
申请人： Yoshio Kawashima , Akihiro Odagawa , Nozomu Matsukawa , Yasunari Sugita , Yasunori Morinaga
发明人： Yoshio Kawashima , Akihiro Odagawa , Nozomu Matsukawa , Yasunari Sugita , Yasunori Morinaga
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G01R33/093 , G11B5/3903 , G11B5/3909 , G11B2005/3996 , H01F10/3254 , H01F10/3268 , H01F41/302 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044
摘要： The present invention provides a magnetoresistive element that can suppress the characteristic degradation even after high-temperature heat treatment, specifically at 400° C. to 450° C. This element is manufactured by a method that includes the following processes in the indicated order: a film formation process for forming at least a first ferromagnetic layer, a second ferromagnetic layer, and a non-magnetic layer on a substrate; a preheat process at 330° C. to 380° C. for not less than 60 minutes; and a heat treatment process at 400° C. to 450° C. This element has a resistance value that changes with a change in relative angle formed by the magnetization directions of the first ferromagnetic layer and the second ferromagnetic layer.
摘要翻译：本发明提供即使在高温热处理后，特别是在400℃〜450℃也能够抑制特性劣化的磁阻元件。该元件通过以下顺序制造方法：以下述方式制造：a 用于在基板上形成至少第一铁磁层，第二铁磁层和非磁性层的成膜工艺; 在330℃至380℃下预热不少于60分钟; 以及在400℃至450℃的热处理过程。该元件具有随着由第一铁磁层和第二铁磁层的磁化方向形成的相对角度的变化而变化的电阻值。

92. 发明授权

US06687977B2 CPP magnetoresistive device and method for making same 失效
标题翻译： CPP磁阻器件及其制造方法
公开(公告)号：US06687977B2
公开(公告)日：2004-02-10
申请号：US09785752
申请日：2001-02-20
申请人： Kenneth E. Knapp , Ronald A. Barr
发明人： Kenneth E. Knapp , Ronald A. Barr
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3948 , G11B5/3967 , G11B2005/3996 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/4905 , Y10T29/49052
摘要： A magnetoresistive device includes a metal layer, formed over a substrate, in which a groove is formed. A magnetoresistive element is formed in the groove, forming two magnetoresistive element portions that are separated by a conductive element. A sense current applied to the metal layer flows through the two magnetoresistive element portions with a predominant current-perpendicular-to-plane component. The method includes techniques that are less complex and less expensive than submicron photolithography to form the above described magnetoresistive device with submicron geometries.
摘要翻译：磁阻器件包括形成在其上形成有沟槽的衬底上的金属层。在沟槽中形成磁阻元件，形成由导电元件分开的两个磁阻元件部分。施加到金属层的感测电流以主要的电流 - 垂直于平面的分量流过两个磁阻元件部分。该方法包括比亚微米光刻更复杂和更便宜的技术，以形成具有亚微米几何形状的上述磁阻器件。

93. 发明授权

US06687098B1 Top spin valve with improved seed layer 有权
标题翻译：具有改良种子层的顶部自旋阀
公开(公告)号：US06687098B1
公开(公告)日：2004-02-03
申请号：US09349745
申请日：1999-07-08
申请人： Yiming Huai
发明人： Yiming Huai
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G11B5/3163 , G11B5/3903 , H01F10/3268 , H01F10/3272 , H01F10/3295 , H01F41/308
摘要： The present invention provides an improved top spin valve and method of fabrication. In the preferred embodiment of the top spin valve of the present invention, a seed layer is formed of non-magnetic material having the elements Ni and Cr. In the preferred embodiments, the seed layer material has an ion milling rate comparable to that of the free layer material. This allows free layer sidewalls to be formed with shorter tails, improving free layer-to-magnetic bias layer junction, thus improving free layer domain structure and track width. In one embodiment, the seed layer may have NiFeCr, with Cr from about 20% to 50%. In another embodiment, the seed layer may have NiCr, with about 40%. Some embodiments may have the seed layer formed on an optional Ta pre-seed layer. Such embodiments provide an improved fcc (111) texture particularly for NiFe and for NiFe/CoFe free layers grown on a seed layer improving spin valve performance, and especially in embodiments having very thin NiFe free layers, ultra thin NiFe free layers, and free layers without NiFe, such as a free layer of CoFe. Such a seed layer can improve AFM pinning layer texture to improve the exchange bias, thus providing better thermal stability. Such a seed layer also provides high resistivity and can improve the magnetostriction of adjacent NiFe free layer material or improve the soft properties of an adjacent CoFe free layer.
摘要翻译：本发明提供一种改进的顶部自旋阀及其制造方法。在本发明的顶部自旋阀的优选实施方案中，种子层由具有元素Ni和Cr的非磁性材料形成。在优选的实施方案中，种子层材料具有与自由层材料相当的离子研磨速率。这允许以更短的尾部形成自由层侧壁，改善自由层到磁偏置层结，从而改善自由层结构和轨道宽度。在一个实施方案中，种子层可以具有NiFeCr，其中Cr为约20％至50％。在另一个实施方案中，种子层可以具有约40％的NiCr。一些实施方案可以具有形成在任选的Ta预种子层上的种子层。这样的实施例提供了改进的fcc（111）纹理，特别是对于NiFe和在种子层上生长的NiFe / CoFe自由层，改善自旋阀性能，特别是在具有非常薄的NiFe自由层，超薄NiFe自由层和自由层不含NiFe，如CoFe的自由层。这样的种子层可以改善AFM钉扎层的织构以改善交换偏压，从而提供更好的热稳定性。这种种子层还提供高电阻率并且可以改善相邻NiFe自由层材料的磁致伸缩或改善相邻的无CoFe层的软性能。

94. 发明授权

US06680829B2 MR structures for high areal density reader by using side shields 有权
标题翻译：通过使用侧面屏蔽，高密度读取器的MR结构
公开(公告)号：US06680829B2
公开(公告)日：2004-01-20
申请号：US09934096
申请日：2001-08-20
申请人： Lujun Chen , James Giusti , Juan Jose Fernandez-de-Castro , Jian Chen , Sining Mao
发明人： Lujun Chen , James Giusti , Juan Jose Fernandez-de-Castro , Jian Chen , Sining Mao
IPC分类号： G11B5127
CPC分类号： G11B5/3938 , G11B5/00 , G11B5/3903 , G11B5/398
摘要： A magnetoresistive (MR) sensor for use in a magnetic storage system including a magnetic storage media having multiple concentric microtracks with information stored thereon. The MR sensor includes a plurality of generally parallel layers that form an MR stack. The MR sensor also includes a top shield and a bottom shield that are spaced apart on opposite sides of the MR stack in a longitudinal direction. The Mr sensor further includes a first and a second side shield spaced apart on opposite sides of the MR stack in a transverse direction. The top shield, bottom shield, first side shield and second side shield substantially surround the MR stack.
摘要翻译：一种用于磁存储系统的磁阻（MR）传感器，包括具有存储在其上的信息的具有多个同心微轨迹的磁存储介质。 MR传感器包括形成MR堆叠的多个大致平行的层。 MR传感器还包括在MR堆叠的纵向方向上的相对侧上间隔开的顶部屏蔽和底部屏蔽。 Mr传感器还包括在横向上在MR堆叠的相对侧上间隔开的第一和第二侧屏蔽。顶部屏蔽，底部屏蔽，第一侧面屏蔽和第二侧面屏蔽件基本上围绕MR堆叠。

95. 发明授权

US06678940B2 Method of making a thin-film magnetic head 失效
标题翻译：制造薄膜磁头的方法
公开(公告)号：US06678940B2
公开(公告)日：2004-01-20
申请号：US09885657
申请日：2001-06-20
申请人： Kiyoshi Sato
发明人： Kiyoshi Sato
IPC分类号： G11B5127
CPC分类号： B82Y10/00 , G11B5/3133 , G11B5/3903 , G11B5/3967 , Y10T29/49032 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49071 , Y10T29/49073
摘要： A method for making a thin-film magnetic head having a magnetoresistive effect element wherein an insulating layer is formed under an electrode layer of a magnetoresistive effect element with a lower gap layer interposed therebetween. As a result, the distance between the electrode layer and the lower shielding layer becomes longer, thus permitting maintenance of a satisfactory electrical insulation.
摘要翻译：一种用于制造具有磁阻效应元件的薄膜磁头的方法，其中绝缘层形成在具有下间隙层的磁阻效应元件的电极层之下。结果，电极层和下屏蔽层之间的距离变长，从而可以保持令人满意的电绝缘。

96. 发明授权

US06671139B2 In-stack longitudinal bias structure for CIP spin valve sensors with bias layer electrically insulated from free layer 有权
标题翻译：用于具有与自由层电绝缘的偏置层的CIP自旋阀传感器的堆叠纵向偏置结构
公开(公告)号：US06671139B2
公开(公告)日：2003-12-30
申请号：US10066067
申请日：2002-01-31
申请人： Kashmira J. Carey , Jeffrey R. Childress , Robert E. Fontana, Jr. , Kuok San Ho , Ching Hwa Tsang
发明人： Kashmira J. Carey , Jeffrey R. Childress , Robert E. Fontana, Jr. , Kuok San Ho , Ching Hwa Tsang
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3903 , G11B5/3932 , G11B2005/3996
摘要： A magnetization of a ferromagnetic free layer of a current-in-plane (CIP) sensor is stabilized using an in-stack longitudinal bias structure that includes a ferromagnetic bias layer and an anti-ferromagnetic bias layer. An electrically insulating layer separates the ferromagnetic free layer and the in-stack longitudinal bias structure, and thus the leads attached to the CIP sensor do not make direct electrical contact with the in-stack longitudinal bias structure. As a result, the sense current shunted by the in-stack longitudinal bias structure is prevented. Since a width along the off track direction of the in-stack longitudinal bias structure is greater than the track-width of the CIP sensor, the edge magnetostatic coupling filed acting on the ferromagnetic free layer from the track width edges of the in-stack longitudinal bias structure is reduced to approximately zero.
摘要翻译：使用包括铁磁偏置层和反铁磁偏置层的堆叠内纵向偏置结构来稳定电流平面（CIP）传感器的铁磁自由层的磁化。电绝缘层分离铁磁自由层和堆叠内纵向偏置结构，因此连接到CIP传感器的引线不与堆叠内纵向偏置结构直接电接触。结果，防止了由堆叠内纵向偏置结构分流的感测电流。由于沿着堆叠内纵向偏置结构的偏离轨道方向的宽度大于CIP传感器的轨道宽度，因此边缘静磁耦合场从堆叠纵向偏移结构的轨道宽度边缘起作用在铁磁自由层上偏置结构减少到大约零。

97. 发明授权

US06662432B2 Method of making a free layer for a spin valve sensor with a lower uniaxial anisotropy field 失效
标题翻译：制备具有较低单轴各向异性场的自旋阀传感器自由层的方法
公开(公告)号：US06662432B2
公开(公告)日：2003-12-16
申请号：US09753823
申请日：2001-01-02
申请人： Hamid Balamane , Dwight Cornwell, Jr. , Hardayal Singh Gill , Serhat Metin , Mustafa Pinarbasi
发明人： Hamid Balamane , Dwight Cornwell, Jr. , Hardayal Singh Gill , Serhat Metin , Mustafa Pinarbasi
IPC分类号： G11B5127
CPC分类号： B82Y10/00 , G11B5/3903 , G11B5/3967 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49067
摘要： A free layer for a spin valve sensor includes a cobalt iron (CoFe) film which has an easy axis oriented perpendicular to an air bearing surface (ABS) of a read head and a nickel iron (NiFe) film which has an easy axis oriented parallel to the ABS and parallel to the major planes of the thin film layers. In a further embodiment the free layer is annealed at a high temperature in the presence of a field which is oriented perpendicular to the ABS.
摘要翻译：用于自旋阀传感器的自由层包括钴铁（CoFe）膜，其具有垂直于读取头的空气轴承表面（ABS）和镍铁（NiFe）膜垂直取向的易磁化轴，其易于轴取向平行并且平行于薄膜层的主平面。在另一个实施方案中，自由层在垂直于ABS的场的存在下在高温下退火。

98. 发明授权

US06646830B2 Monolithic magnetic read-while-write head apparatus and method of manufacture 失效
公开(公告)号：US06646830B2
公开(公告)日：2003-11-11
申请号：US09877382
申请日：2001-06-07
申请人： Robert Glenn Biskeborn , James Howard Eaton
发明人： Robert Glenn Biskeborn , James Howard Eaton
IPC分类号： G11B5127
CPC分类号： G11B5/3967 , G11B5/3103 , G11B5/3116 , G11B5/3169 , G11B5/3173 , G11B5/4893 , Y10T29/49032 , Y10T29/49039 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T29/49798
摘要： A multi-track magnetoresistive (MR) tape head with precisely-aligned read/write (R/W) track-pairs and a method for fabrication on a monolithic substrate wherein a plurality of tape heads are fabricated from a single substrate wafer by using complete thin-film processing on both sides of the wafer. The recording elements are aligned with readers opposite writers on the other side, providing a method for fabricating a multi-track thin-film magnetoresistive tape head with precisely-aligned R/W track-pairs fabricated on a monolithic substrate. As used herein, the term monolithic denominates an undivided seamless piece. The wafer is built using modified standard thin-film processes for fabricating direct access storage device (DASD) heads and modified substrate lapping procedures. The gap-to-gap separation within each R/W track-pair is reduced to nearly the thickness of the substrate wafer, which is significantly less than conventional separations known in the art. By fabricating on both sides of the wafer, hundreds or thousands of head elements may be aligned in one step while reducing the number of pieces in the completed head assembly.

99. 发明授权

US06643914B1 Method for assembling a disk drive 失效
标题翻译：组装磁盘驱动器的方法
公开(公告)号：US06643914B1
公开(公告)日：2003-11-11
申请号：US09765294
申请日：2001-01-18
申请人： Yanchu Xu
发明人： Yanchu Xu
IPC分类号： G11B5127
CPC分类号： G11B33/146 , G11B5/102 , G11B25/043 , Y10T29/49004 , Y10T29/49025 , Y10T29/49036
摘要： A method for assembling a disk drive using a multifunctional push-pin hole is disclosed. A push-pin of a servo writer is directed through the push-pin hole of the disk drive for executing a servo writing operation. The push-pin is withdrawn from the push-pin hole at the completion of the servo writing operation. A filter is disposed within the push-pin hole so as to be disposed within an interior of the disk drive. This filter may provide one or more of a humidity control/adjustment function and a chemical filtering function (e.g., an integrated chemical filter). Moreover, this filter may work as a sound barrier. That is, this filter may be used to reduce sound intensity outside the disk drive on top of the push-pin hole in relation to those prior art push-pin holes which were sealed by only a piece of tape on an exterior surface of the disk drive.
摘要翻译：公开了一种使用多功能推针孔组装磁盘驱动器的方法。伺服写入器的推针被引导通过盘驱动器的推针孔，用于执行伺服写入操作。在伺服写入操作完成时，推针从推针孔中取出。过滤器设置在推针孔内，以便设置在盘驱动器的内部。该过滤器可以提供湿度控制/调节功能和化学过滤功能（例如，集成化学过滤器）中的一种或多种。此外，该滤波器可以用作声屏障。也就是说，该滤波器可以用于相对于现有技术的推针孔减小在推针孔顶部的磁盘驱动器之外的声音强度，这些现有技术的推针孔仅由盘片的外表面上的一块胶带所密封驾驶。

100. 发明授权

US06643105B2 Magnetic head having magnetic shield layers 有权
标题翻译：具有磁屏蔽层的磁头
公开(公告)号：US06643105B2
公开(公告)日：2003-11-04
申请号：US10214102
申请日：2002-08-08
申请人： Kazuhiro Nakamoto , Hiroyuki Hoshiya , Takashi Kawabe , Hiromasa Takahashi , Hisashi Kimura , Katsuro Watanabe , Chiaki Ishikawa , Kaori Totsuka
发明人： Kazuhiro Nakamoto , Hiroyuki Hoshiya , Takashi Kawabe , Hiromasa Takahashi , Hisashi Kimura , Katsuro Watanabe , Chiaki Ishikawa , Kaori Totsuka
IPC分类号： G11B5127
CPC分类号： G11B5/3903 , G11B5/40
摘要： A magnetic head include a pair of magnetic shield layers, a pair of gap layers formed between the pair of magnetic shield layers, a magnetoresistive layer arranged between the pair of gap layers, and a pair of electrodes electrically connected to the magnetoresistive layer. At least one of the pair of magnetic shield layers is formed as a discontinuous multi-layer or as a mixed layer.
摘要翻译：磁头包括一对磁屏蔽层，一对间隔层形成在一对磁屏蔽层之间，一个磁阻层布置在一对间隙层之间，一对电极与磁阻层电连接。一对磁屏蔽层中的至少一个形成为不连续的多层或混合层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式