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公开(公告)号：US5210668A
公开(公告)日：1993-05-11
申请号：US688016
申请日：1991-04-19
申请人： Cornelis W. M. P. Sillen , Franciscus W. A. Dirne , Jacobus J. M. Ruigrok , Wolfgang Binder-Krieglstein , Ulrich Traxlmayr
发明人： Cornelis W. M. P. Sillen , Franciscus W. A. Dirne , Jacobus J. M. Ruigrok , Wolfgang Binder-Krieglstein , Ulrich Traxlmayr
CPC分类号： G11B5/232 , G11B5/1878
摘要： Magnetic head comprising a magnetic core having two core limbs (1,3) formed from a ferrite, which core limbs constitute two core faces located opposite each other, at least one of said core faces having a cladding of a soft-magnetic material having a higher saturation magnetisation than the ferrite, and a non-magnetic transducing gap (11) present between the core faces and having at least one layer of a first metallic material (21) and bonded layers (23) of a second metallic material. The cladding comprises a first cladding layer (15) of an alloy based on Ni-Fe on which a second cladding layer (17) of an amorphous alloy based on Co-Ti and/or Zr and/or Hf-Nb and/or Ta is provided, while the first metallic material, chosen from the group of Mo, Ti, Cr and NiCr, is directly provided on the amorphous alloy of the cladding. (FIG. 2).
摘要翻译： 磁头包括具有由铁氧体形成的两个铁芯臂（1,3）的磁芯，所述铁芯臂构成彼此相对的两个芯面，所述芯面中的至少一个具有软磁材料的包层，所述软磁材料具有 存在比铁氧体高的饱和磁化，以及存在于芯面之间并且具有至少一层第一金属材料（21）和第二金属材料的接合层（23）的非磁性换能间隙（11）。 所述包层包括基于Ni-Fe的合金的第一包覆层（15），其上形成基于Co-Ti和/或Zr和/或Hf-Nb和/或Ta的非晶合金的第二包覆层（17） 提供了从Mo，Ti，Cr和NiCr组中选出的第一金属材料直接设置在包层的非晶态合金上。 （图2）。
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公开(公告)号：US4669015A
公开(公告)日：1987-05-26
申请号：US719191
申请日：1985-04-03
IPC分类号： G11B5/09 , G11B5/127 , G11B5/187 , G11B5/23 , G11B5/235 , G11B5/265 , G11B5/31 , G11B5/39 , G11B5/25
CPC分类号： G11B5/3925 , G11B5/09 , G11B5/1278 , G11B5/2652 , G11B5/31
摘要： A magnetic transducing head (1), for scanning a magnetic recording medium (14) which comprises a magnetizable surface (16) for retaining information in the form of a previously determined information pattern which is characterized by a restricted wavelength band, has a transducing gap (10) which is filled by a spacer consisting of a number (.gtoreq.4) of layers (11) of a material of low magnetic permeability extending parallel to the core faces (6, 7) and forming sub-gaps, a layer (12) of higher permeability being interposed between every two successive layers (11) of low permeability. As a result of this the head (1) has a very high efficiency, while by adjusting in particular the spacings between the sub-gaps the head (1) can be given a desired band filter action.
摘要翻译： 一种磁传感头（1），用于扫描磁记录介质（14），该磁记录介质包括一个可磁化表面（16），该可磁化表面（16）以预先确定的以受限波长带为特征的信息图形的形式保留信息，具有换能间隙 （10），其由平行于芯面（6,7）延伸的低导磁率的材料的数量（> 4 =）的层（11）填充并形成子间隙而填充的间隔层， （12）介于每两层连续的低渗透层之间（11）。 作为其结果，头部（1）具有非常高的效率，而通过特别地调整子间隙之间的间隔，头部（1）可被赋予期望的带状过滤器作用。
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公开(公告)号：US06278588B1
公开(公告)日：2001-08-21
申请号：US09431579
申请日：1999-11-01
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/00 , G11B5/3903 , G11B5/3925 , G11B5/3967 , G11B2005/3996 , H01F10/32
摘要： A magnetoresistive magnetic field sensor comprises a bilayer with a first soft magnetic layer and in direct contact therewith a second soft magnetic layer. The layers are exchange coupled to one another. The second soft magnetic layer is located below, on or in the first soft magnetic layer in a meandering, spiraling or suchlike structure. The electrical resistivity of the first soft magnetic layer is higher than that of the second soft magnetic layer, while the difference in electrical resistivity between both soft magnetic layers is at least a factor of 10, preferably a factor of 100. The magnetoresistive magnetic field sensor is applied in a magnetic read head device for a recording information system.
摘要翻译： 磁阻磁场传感器包括具有第一软磁层并与第二软磁层直接接触的双层。 这些层彼此交换耦合。 第二软磁层位于第一软磁层的下方，上方或第一软磁层中，其曲折，螺旋形或类似结构。 第一软磁层的电阻率高于第二软磁层的电阻率，而两个软磁层之间的电阻差为至少10倍，优选为100倍。磁阻磁场传感器 被应用于用于记录信息系统的磁读头装置中。
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公开(公告)号：US06238731B1
公开(公告)日：2001-05-29
申请号：US09390854
申请日：1999-09-07
申请人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
发明人： Jacobus J. M. Ruigrok , Pieter J. Van Der Zaag , Wiepke Folkerts , Lambertus Postma , Ronald M. Wolf , Johannes F. M. Cillessen
IPC分类号： B05D512
CPC分类号： G11B5/3919 , G11B5/3922
摘要： Thin-film magnetic head having a head face (103) and comprising a magnetoresistive element (109) oriented transversely to the head face and a flux-guiding element (107) of a magnetically permeable material terminating in the head face. A peripheral area (109a) of the magnetoresistive element extending parallel to the head face is present opposite the flux-guiding element for forming a magnetic connection between the magnetoresistive element and the flux-guiding element. The flux-guiding element and the peripheral area of the magnetoresistive element constitute a common magnetic contact face (111), while the magnetically permeable material of the flux-guiding element is electrically insulating.
摘要翻译： 具有头表面（103）并且包括横向于头部表面定向的磁阻元件（109）的薄膜磁头和终止于头部表面的导磁材料的磁通引导元件（107）。 与磁头表面平行延伸的磁阻元件的周边区域（109a）与磁通元件相对地形成，用于在磁阻元件和磁通引导元件之间形成磁连接。 磁导元件和磁阻元件的周边区域构成公共磁性接触面（111），而导磁元件的导磁材料是电绝缘的。
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25.发明授权Scanning head including a magneto-optical element and scanning device including the scanning head 失效包括磁光元件的扫描头和包括扫描头的扫描装置
公开(公告)号：US5726964A
公开(公告)日：1998-03-10
申请号：US501833
申请日：1995-07-13
IPC分类号： G11B11/10 , G11B11/105 , G11B7/00 , G11B5/127
CPC分类号： G11B11/10547
摘要： Scanning head including a magneto-optical element and scanning device including the scanning head. A scanning head having a head face (1) comprises flux-guiding elements (3a, 3b) and a magneto-optical element (5). The magneto-optical element is disposed in a gap plane (4) which extends between flux-guiding elements.
摘要翻译： 包括磁光元件的扫描头和包括扫描头的扫描装置。 具有头面（1）的扫描头包括磁通引导元件（3a，3b）和磁光元件（5）。 磁光元件设置在在通量引导元件之间延伸的间隙平面（4）中。
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公开(公告)号：US5483735A
公开(公告)日：1996-01-16
申请号：US216573
申请日：1994-03-22
CPC分类号： G11B5/3916 , G11B5/3919 , G11B5/3925 , Y10T29/49048
摘要： Method of manufacturing a magnetoresistive magnetic head in which a first insulation layer (5) of a non-magnetic material is formed on a support face (3a), on which insulation layer a soft-magnetic layer having an upper face remote from the first insulation layer is formed by deposition of a soft-magnetic material. Subsequently a layer portion is removed for forming the flux-guiding elements (17a, 17b) and an aperture extending between said elements, and non-magnetic material for forming a second insulation layer (18) having an upper face remote from the soft-magnetic layer is deposited on the soft-magnetic layer and in the aperture formed therein, which second insulation layer has such a thickness that, viewed in a direction transverse to the support face, the smallest distance between the support face and the upper face of the second insulation layer is larger than the largest distance between the support face and the upper face of the soft-magnetic layer. Subsequently, a mechanochemical polishing treatment is performed as from the upper face of the second insulation layer for forming a main surface (19) at which magnetoresistive material is subsequently deposited for forming a magnetoresistive element (23).
摘要翻译： 一种制造磁阻磁头的方法，其中在支撑面（3a）上形成非磁性材料的第一绝缘层（5），绝缘层上具有远离第一绝缘体的上表面的软磁层 层通过沉积软磁材料形成。 随后，去除层部分以形成磁通引导元件（17a，17b）和在所述元件之间延伸的孔，以及用于形成具有远离软磁体的上表面的第二绝缘层（18）的非磁性材料 层沉积在软磁层上和形成在其中的孔中，该第二绝缘层具有从横向于支撑面的方向观察的厚度，即在支撑面与第二绝缘层的上表面之间的最小距离 绝缘层大于软磁层的支撑面和上表面之间的最大距离。 随后，从第二绝缘层的上表面进行机械化学抛光处理，以形成随后沉积磁阻材料以形成磁阻元件（23）的主表面（19）。
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公开(公告)号：US5301418A
公开(公告)日：1994-04-12
申请号：US861748
申请日：1992-04-01
CPC分类号： G11B5/488 , G11B5/127 , G11B5/1272 , G11B5/1871 , G11B5/232 , G11B5/531 , Y10T29/49052
摘要： A method of manufacturing one or more magnetic heads starts from a substrate (11) on which a first magnetic layer (13) is provided. A recess (15) is formed in this layer at the location of a transducing gap to be formed, after which a gap layer (19) is provided on a bounding wall (17) of the recess. Subsequently, the recess is filled with a second magnetic layer (23) and a counterblock (31) is provided on the layers after surface-polishing. Finally, a winding aperture is provided.
摘要翻译： 制造一个或多个磁头的方法从设置有第一磁性层（13）的基板（11）开始。 在要形成的换能间隙的位置上的该层中形成凹部（15），之后在凹部的边界壁（17）上设置间隙层（19）。 随后，凹部填充有第二磁性层（23），并且在表面抛光之后在层上设置反向块（31）。 最后，提供卷绕孔。
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28.发明授权
公开(公告)号：US5270895A
公开(公告)日：1993-12-14
申请号：US761585
申请日：1991-09-18
CPC分类号： G11B5/3925 , G11B5/31 , G11B5/3967 , Y10T29/49039
摘要： Combined read/write thin-film magnetic head comprising a read portion including a magneto-resistive element, a write portion including an inductive element, and a shared flux guide between the read and write portions. Improved separation of the read and write functions is achieved by providing the shared flux guide as a sandwich structure of two soft magnetic layers separated by an insulating layer, except that the soft-magnetic layers are interconnected in a magnetically conducting manner proximate to the head face.
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公开(公告)号：US5258883A
公开(公告)日：1993-11-02
申请号：US762813
申请日：1991-09-17
CPC分类号： G11B5/3925
摘要： Thin-film magnetic head comprising a substrate (3), a magnetoresistive element (9) and two magnetically conducting flux guides (5, 7) extending substantially parallel to each other for magnetic cooperation with the magnetoresistive element (9). A non-magnetic read gap (13) adjacent to a head face (1) extends between the flux guides. The first flux guide (5) is built up in layers and comprises a first soft-magnetic layer (5A) opposite the second flux guide (7), a second soft-magnetic layer (5B) and an insulation layer (5C) of a non-magnetic material extending substantially parallel to the substrate and situated between these soft-magnetic layers. Said soft-magnetic layers join in a common end portion (5E) proximate to the head face. The first soft-magnetic layer is an interrupted layer having two spatially separated layer portions (5AA, 5AB), bridged by the magnetoresistive element.
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30.发明授权Anistropic magnetic layer for reducing the signal to noise ratio between a magnetic head and a moveable information carrier 失效用于将信号降低到磁头和可移动信息载体之间的噪声比的平滑磁层
公开(公告)号：US5105323A
公开(公告)日：1992-04-14
申请号：US444600
申请日：1989-12-01
摘要： System comprising a magnetic head (1) and a magnetic information carrier (2), which cooperate with each other through a layer (3) with soft magnetic and lubricating properties. The layer (3) is anisotropic, the relative permeability (.mu.x) of the layer, taken in a direction parallel to the head face (2), being less than the relative permeability (.mu.y) of the layer in a direction perpendicular to the head face (9). By using the said layer in systems in which a certain distance between the magnetic head (1) and the information carrier (2) is desirable, the magnetic resistance is reduced and the signal-to-noise ratio is improved. The layer (3) may be present on both the magnetic head (1) and on the information carrier (2) as well as on both of them.
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