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41. 发明授权

US5768070A Horizontal thin film write, MR read head 失效
标题翻译：水平薄膜写入，MR读头
公开(公告)号：US5768070A
公开(公告)日：1998-06-16
申请号：US856532
申请日：1997-05-14
申请人： Mohamad Towfik Krounbi , Mark E. Re
发明人： Mohamad Towfik Krounbi , Mark E. Re
IPC分类号： G11B5/012 , G11B5/127 , G11B5/17 , G11B5/265 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/48 , G11B19/04
CPC分类号： G11B5/3954 , G11B5/3163 , G11B5/3183 , G11B5/3967 , G11B5/4886 , G11B19/04 , G11B5/2652 , G11B5/3113 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A horizontal combined head is provided which has both a thin film write and an MR read element located at an air bearing surface (ABS). The read element can be formed with a track width that is independent of the track width of the write element. The MR sensor or the read element is separated from one of the first and second pole pieces of the write element by an insulation layer. Accordingly, the shields for the read element remain more stable after a write operation. In one embodiment of the present invention a single stripe MR sensor is employed while in a second embodiment a dual stripe MR sensor is employed. A method of the invention includes forming the dual MR stripe in a single process step so that the dual MR stripes of the dual MR sensor are near identical for implementing near absolute common mode rejection of noise.
摘要翻译：提供了水平组合头，其具有位于空气轴承表面（ABS）处的薄膜写入和MR读取元件。读取元件可以形成为与写入元件的轨迹宽度无关的轨道宽度。 MR传感器或读取元件通过绝缘层与写入元件的第一和第二极片中的一个分离。因此，读写元件的屏蔽在写操作之后保持更稳定。在本发明的一个实施例中，采用单条MR传感器，而在第二实施例中采用双条MR传感器。本发明的方法包括在单个工艺步骤中形成双MR条纹，使得双MR传感器的双MR条带几乎相同以实现噪声的近绝对共模抑制。

42. 发明申请

US20140022839A1 METHOD AND SYSTEM FOR PROVIDING MAGNETIC JUNCTIONS HAVING IMPROVED CHARACTERISTICS 有权
标题翻译：用于提供具有改进特性的磁性结的方法和系统
公开(公告)号：US20140022839A1
公开(公告)日：2014-01-23
申请号：US13553965
申请日：2012-07-20
申请人： Chang-Man Park , Dustin William Erickson , Mohamad Towfik Krounbi
发明人： Chang-Man Park , Dustin William Erickson , Mohamad Towfik Krounbi
IPC分类号： G11C11/14 , C23F1/00
CPC分类号： G11C11/161 , H01L43/08 , H01L43/12
摘要： A method and apparatus provide a magnetic memory including magnetic junctions on a substrate. The apparatus include an RIE chamber and an ion milling chamber. The chambers are coupled such that the magnetic memory is movable between the chambers without exposing the magnetic memory to ambient. The method provides magnetic junction layers and a hard mask layer on the magnetic junction layers. A hard mask is formed from the hard mask layer using an RIE. The magnetic junction layers are ion milled after the RIE and without exposing the magnetic memory to an ambient after the RIE. The ion milling defines at least part of each magnetic junction. A magnetic junction may be provided. The magnetic junction includes pinned, nonmagnetic spacer, and free layers. The free layer has a width of not more than twenty nanometers and is switchable when a write current is passed through the magnetic junction.
摘要翻译：一种方法和装置提供包括在基底上的磁结的磁存储器。该装置包括RIE室和离子研磨室。这些室被耦合，使得磁存储器可以在室之间移动，而不将磁存储器暴露于环境。该方法在磁结层上提供磁结层和硬掩模层。使用RIE从硬掩模层形成硬掩模。在RIE之后，磁结层被离子研磨，并且在RIE之后没有将磁存储器暴露在环境中。离子铣削限定了每个磁结的至少一部分。可以提供磁结。磁结包括固定的，非磁性的隔离层和自由层。自由层具有不超过二十纳米的宽度，并且当写入电流通过磁性结时可自由切换。

43. 发明授权

US06239955B1 Stabilized MR sensor and heat guide joined by contiguous junction 有权
标题翻译：稳定的MR传感器和导热板连接在一起
公开(公告)号：US06239955B1
公开(公告)日：2001-05-29
申请号：US09280497
申请日：1999-03-30
申请人： Moris Musa Dovek , Robert E. Fontana , Richard Hsiao , Mohamad Towfik Krounbi , Hugo Alberto Emilio Santini , Virgil Simon Speriosu
发明人： Moris Musa Dovek , Robert E. Fontana , Richard Hsiao , Mohamad Towfik Krounbi , Hugo Alberto Emilio Santini , Virgil Simon Speriosu
IPC分类号： G11B539
CPC分类号： G11B5/3916 , G01R33/09 , G03F7/00 , G11B5/3163 , G11B5/3903 , G11B5/3919 , G11B5/3932
摘要： The back end of an MR sensor and a flux guide are joined by a contiguous self-aligned junction so that a predictable overlap of the flux guide on the back end of the MR sensor can be achieved for optimizing signal flux density in the MR sensor. Lead/longitudinal bias layers for the MR sensor are also joined by a contiguous selfaligned junction to the flux guide for stabilizing the flux guide. By employing a single lift off resist mask the MR sensor and the lead/longitudinal bias layers can be patterned followed by deposition of the flux guide. The flux guide is a bilayer of an insulation material layer and a flux guide material layer. The insulation material layer is sandwiched between the MR sensor and the flux guide material layer and between the lead/longitudinal bias layers and the flux guide material layer. A heat guide or combined flux guide and heat guide may be substituted for the aforementioned flux guide.
摘要翻译： MR传感器和磁通引导件的后端通过连续的自对准结连接，从而可以实现MR传感器后端的磁通引导件的可预测重叠，以优化MR传感器中的信号通量密度。用于MR传感器的引线/纵向偏置层也通过邻接的自对准结连接到通量引导件，用于稳定通量引导件。通过使用单个剥离抗蚀剂掩模，MR传感器和引导/纵向偏置层可以被图案化，然后沉积助焊剂引导件。助焊剂是绝缘材料层和助焊剂引导材料层的双层。绝缘材料层被夹在MR传感器和磁通引导材料层之间以及引导/纵向偏置层与通量引导材料层之间。导热或组合的磁通引导件和导热件可以代替上述的磁通引导件。

44. 发明授权

US06181532B2 Stabilized MR sensor and flux/heat guide joined by contiguous junction 失效
标题翻译：稳定的MR传感器和通过连接接头连接的通量/热导
公开(公告)号：US06181532B2
公开(公告)日：2001-01-30
申请号：US09280489
申请日：1999-03-30
申请人： Moris Musa Dovek , Robert E. Fontana , Richard Hsiao , Mohamad Towfik Krounbi , Hugo Alberto Emilio Santini , Virgil Simon Speriosu
发明人： Moris Musa Dovek , Robert E. Fontana , Richard Hsiao , Mohamad Towfik Krounbi , Hugo Alberto Emilio Santini , Virgil Simon Speriosu
IPC分类号： G11B539
CPC分类号： G11B5/3916 , G01R33/09 , G03F7/00 , G11B5/3163 , G11B5/3903 , G11B5/3919 , G11B5/3932
摘要： The back end of an MR sensor and a flux guide are joined by a contiguous self-aligned junction so that a predictable overlap of the flux guide on the back end of the MR sensor can be achieved for optimizing signal flux density in the MR sensor. Lead/longitudinal bias layers for the MR sensor are also joined by a contiguous self-aligned junction to the flux guide for stabilizing the flux guide. By employing a single lift off resist mask the MR sensor and the lead/longitudinal bias layers can be patterned followed by deposition of the flux guide. The flux guide is a bilayer of an insulation material layer and a flux guide material layer. The insulation material layer is sandwiched between the MR sensor and the flux guide material layer and between the lead/longitudinal bias layers and the flux guide material layer. A heat guide or combined flux guide and heat guide may be substituted for the aforementioned flux guide.
摘要翻译： MR传感器和磁通引导件的后端通过连续的自对准结连接，从而可以实现MR传感器后端的磁通引导件的可预测重叠，以优化MR传感器中的信号通量密度。用于MR传感器的引线/纵向偏置层也通过连接的自对准结连接到通量引导件，用于稳定通量引导件。通过使用单个剥离抗蚀剂掩模，MR传感器和引导/纵向偏置层可以被图案化，然后沉积助焊剂引导件。助焊剂是绝缘材料层和助焊剂引导材料层的双层。绝缘材料层被夹在MR传感器和磁通引导材料层之间以及引导/纵向偏置层与通量引导材料层之间。导热或组合的磁通引导件和导热件可以代替上述的磁通引导件。

45. 发明授权

US5757591A Magnetoresistive read/inductive write magnetic head assembly fabricated with silicon on hard insulator for improved durability and electrostatic discharge protection and method for manufacturing same 失效
标题翻译：在硬绝缘体上用硅制造的磁阻读/磁性写磁头组件，用于改善耐久性和静电放电保护及其制造方法
公开(公告)号：US5757591A
公开(公告)日：1998-05-26
申请号：US756294
申请日：1996-11-25
申请人： Jeffrey William Carr , Moris Musa Dovek , Mohamad Towfik Krounbi
发明人： Jeffrey William Carr , Moris Musa Dovek , Mohamad Towfik Krounbi
IPC分类号： G11B5/255 , G11B5/39 , G11B5/60 , G11B5/40
CPC分类号： G11B5/6005 , G11B5/255 , G11B5/3967
摘要： A magnetoresistive read/inductive write magnetic head assembly formed on a hard electrically insulating substrate and having electrostatic discharge protection comprises: a hard electrically insulating substrate, preferably formed of sapphire or alumina-TiC; multiple alumina layers formed over the substrate; a magnetoresistive read/inductive write head positioned between the alumina layers; a silicon layer supported by the substrate; and a semiconducting circuit integrated into the silicon layer and interconnected with said magnetoresistive read/write inductive write head to provide electrostatic discharge protection to the head. The silicon layer may be epitaxially grown on the substrate when implemented as sapphire, or bonded to the substrate when implemented as alumina-TiC. The hard electrically insulating substrate and alumina layers provide the assembly with a hard air bearing surface having generally uniform lapping and etching characteristics, and excellent durability.
摘要翻译：形成在硬电绝缘基板上并具有静电放电保护的磁阻读/磁写磁头组件包括：硬电绝缘基板，优选由蓝宝石或氧化铝-TiC形成; 多个氧化铝层形成在衬底上; 定位在氧化铝层之间的磁阻读/写写头; 由所述基板支撑的硅层; 以及集成到硅层中并与所述磁阻读/写感应写头互连的半导体电路，以向头提供静电放电保护。当作为蓝宝石实施时，硅层可以在衬底上外延生长，或者当被实施为氧化铝-TiC时，结合到衬底上。硬电绝缘基板和氧化铝层为组装提供了具有大致均匀研磨和蚀刻特性以及优异的耐久性的硬质空气轴承表面。

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