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1.发明授权
公开(公告)号：US4939836A
公开(公告)日：1990-07-10
申请号：US366955
申请日：1989-06-16
CPC分类号： G11B5/232 , G11B5/1871 , Y10T29/49048 , Y10T29/49055 , Y10T29/49066
摘要： A method for fabricating magnetic recording/reading heads. A substrate made of magnetic material is provided with a groove of a predetermined width. The surface of the substrate bearing the groove becomes the active face for the magnetic head. The face of the substrate having the groove is ground, and then filled with a non-magnetic material to form a gap. The filling causes the non-magnetic material to jut out of the groove. The material which juts out is ground off until the level of the substance is reached.
摘要翻译： 一种用于制造磁记录/读取头的方法。 由磁性材料制成的衬底设置有预定宽度的槽。 承载槽的基板的表面成为磁头的有效面。 将具有凹槽的基板的表面研磨，然后用非磁性材料填充以形成间隙。 填充物使非磁性材料从凹槽中突出。 突出的材料将被磨掉，直到达到物质的水平。
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公开(公告)号：US5093980A
公开(公告)日：1992-03-10
申请号：US538410
申请日：1990-06-15
CPC分类号： G11B5/3183 , G11B5/295 , G11B5/3163 , Y10T29/49043 , Y10T29/49055 , Y10T29/4906
摘要： A method of making a multitrack head consisting in making a first network of grooves in a block of ferrite, filling the grooves with glass, planing down the surface, making a second network of grooves in a second block of ferrite, bonding these two blocks, trueing the base of the first block, depositing poles and making the winding wires go through.
摘要翻译： 一种制造多轨头的方法，包括在铁素体块中形成第一网槽，用玻璃填充槽，在表面上刨削，在第二铁素体块中形成第二网槽，将这两个块接合， 实现第一块的底座，沉积杆并使绕组线通过。
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3.发明授权Method for the manufacture of planar magnetic heads by making cavities in a non-magnetic wafer 失效通过在非磁性晶片中制造空腔来制造平面磁头的方法
公开(公告)号：US5067230A
公开(公告)日：1991-11-26
申请号：US541331
申请日：1990-06-21
CPC分类号： G11B5/3183 , G11B5/1272 , G11B5/1871 , G11B5/3103 , G11B5/3163 , Y10T29/49043 , Y10T29/49055 , Y10T29/49066
摘要： A method of simultaneous manufacture of a plurality of planar magnetic heads on a wafer or a slab made of non-magnetic material designed to be cut out to separate each head. The method can be applied to magnetic heads of the type including a micro-gap formed between two magnetic poles, facing a gap defined between two wire-wound ferrite cores. The method consists in depositing said thin layer magnetic poles on a first face of a wafer made of non-magnetic material and in hollowing out, in the face opposite to said wafer, at least one cavity for housing said wire-wound cores so as to obtain a calibrated spacing or a junction between the upper part of each of said wire-wound cores and said thin layer magnetic poles.
摘要翻译： 在由非磁性材料制成的晶片或平板上同时制造多个平面磁头的方法，该非磁性材料设计成被切出以分离每个磁头。 该方法可以应用于包括形成在两个磁极之间的微间隙的类型的磁头，面对两个绕线铁氧体磁心之间的间隙。 该方法包括将所述薄层磁极沉积在由非磁性材料制成的晶片的第一面上，并且在与所述晶片相对的表面中空出，至少一个用于容纳所述绕线芯的空腔，以便 获得每个所述绕线芯的上部和所述薄层磁极之间的校准间隔或接合点。
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公开(公告)号：US5123156A
公开(公告)日：1992-06-23
申请号：US566345
申请日：1990-08-22
CPC分类号： G11B5/255 , G11B5/127 , G11B5/187 , G11B5/3163 , G11B5/3183 , Y10T29/49046 , Y10T29/49055
摘要： A magnetic head and a method for producing the magnetic head comprising the steps of:producing a groove in a first face of a substrate;depositing a material having good magnetic characteristics on the walls of the groove;depositing a non-magnetic material in the groove over the material having good magnetic characteristics;machining a second face of the substrate until the non-magnetic material is reached, so as to create a magnetic gap; andbonding a part carrying a magnetic layer onto the first face of the substrate so as to form a magnetic circuit.
摘要翻译： PCT No.PCT / FR89 / 00657 Sec。 371日期1990年8月22日 102（e）1990年8月22日PCT PCT 1989年12月15日PCT公布。 第WO90 / 07772号公报 日本1990年7月12日。一种磁头及其制造方法，其特征在于，包括：在基板的第一面上形成槽; 在槽的壁上沉积具有良好磁特性的材料; 在具有良好磁特性的材料上的凹槽中沉积非磁性材料; 加工衬底的第二面，直到达到非磁性材料，从而产生磁隙; 以及将承载有磁性层的部分接合到所述基板的第一面上，以形成磁路。
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5.发明授权Method for achieving the planar surface of an active face for a magnetic recording/reading head 失效用于实现磁记录/读取头的有源面的平面的方法
公开(公告)号：US4939835A
公开(公告)日：1990-07-10
申请号：US366954
申请日：1989-06-16
IPC分类号： G11B5/187
CPC分类号： G11B5/1871 , Y10T29/49048 , Y10T29/49055
摘要： A method for achieving the planar surface of an active face for magnetic recording/reading heads. The planar surface of the active face is obtained by grinding, the active face being of the type where, before the grinding operation, the level of the material forming the gap is recessed with respect to the magnetic poles, the method comprising depositing over the recess a thin layer of non-magnetic material with a thickness at least equal to the recess of the gap. The non-magnetive thin layer may then be ground to obtain the planar surface of the active face.
摘要翻译： 一种用于实现磁记录/读取头的有源面的平面的方法。 有源面的平面是通过研磨获得的，所述有源面是在研磨操作之前，形成间隙的材料的高度相对于磁极凹陷的方式，所述方法包括在所述凹部 薄层的非磁性材料，其厚度至少等于间隙的凹槽。 然后可以研磨非磁性薄层以获得活性面的平面。
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6.发明授权Magneto-resistive magnetic field sensor with pole pieces and increased sensitivity 失效具有极片的磁阻磁场传感器和灵敏度增加
公开(公告)号：US5696447A
公开(公告)日：1997-12-09
申请号：US355893
申请日：1994-12-14
CPC分类号： G01R33/09
摘要： The invention concerns a magneto-resistive magnetic sensor comprising a magneto-resistive element, the resistance of which varies as a function of the applied magnetic field and two pole pieces that collect the magnetic field to be detected so as to concentrate it in the magneto-resistive element, each pole piece being positioned to partially overlap the magneto-resistive element, a current I passing through this magneto-resistive element, wherein the zones of the magneto-resistive element that are overlapped by pole pieces are cut out such that the current that passes through the magneto-resistive element is located in a zone in the air gap between the two pole pieces.
摘要翻译： 本发明涉及一种磁阻磁传感器，其包括磁阻元件，其电阻作为所施加的磁场的函数而变化，并且两个极片收集待检测的磁场，以便将其集中在磁 - 电阻元件，每个极片被定位成与磁阻元件部分重叠，通过该磁阻元件的电流I，其中与磁极片重叠的磁阻元件的区域被切出，使得电流 通过磁阻元件的位置位于两个极片之间的气隙中的区域中。
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7.发明授权Multitrack read head having a matrix network of elementary magneto-resistive heads 失效具有基本磁阻头的矩阵网络的多轨读头
公开(公告)号：US5420734A
公开(公告)日：1995-05-30
申请号：US047357
申请日：1993-04-19
CPC分类号： G11B5/3958 , G11B15/12 , G11B5/3903 , G11B5/4969
摘要： The read head according to the invention comprises a matrix network of elementary heads whose magnetic circuit comprises a magneto-resistive element. The different elements are electrically connected in columns and traversed by a current. Head selection lines enable the active line of heads to be selected. The read signal is collected on each column.
摘要翻译： 根据本发明的读取头包括基本磁头的矩阵网络，其磁路包括磁阻元件。 不同的元件电连接在列中，并通过电流穿过。 头选择线使得可以选择主动行。 读取信号在每列收集。
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公开(公告)号：US5282104A
公开(公告)日：1994-01-25
申请号：US46915
申请日：1993-04-14
IPC分类号： G11B5/09 , G11B5/29 , G11B5/31 , G11B5/39 , G11B5/49 , G11B15/14 , G11C11/15 , G11C11/16 , H01L27/22 , G11B5/027 , G11B5/48
CPC分类号： B82Y25/00 , B82Y10/00 , G11B15/14 , G11B5/3903 , G11B5/3958 , G11B5/4969 , G11C11/15 , G11C11/16 , G11B2005/3996 , G11B5/3183
摘要： A magnetic reading device, of the type comprising multiple magnetic read heads, incorporates read heads each formed by a magneto-resistance element having a resistance which varies as a function of an outside magnetic field. The magnetic reading device comprises a network of line conductors intersected with a network of column conductors to form intersections at which a read head is provided. The first and second ends of each magneto-resistance element forming the read heads are respectively connected to a line conductor and to a column conductor of the corresponding intersection, and a control voltage is applied to the line and column conductors by a switching element for each line conductor, column conductors being connected to a current sensor. A simplification of the control of read heads results from this arrangement, while avoiding the effect of the heads not selected on the variations of current coming from the selected heads.
摘要翻译： 包括多个磁读头的类型的磁读取装置包括读磁头，每个读磁头均由具有作为外部磁场的函数而变化的电阻的磁阻元件形成。 磁读取装置包括与列导体网络相交的线路导体网络，以形成提供读头的交叉点。 形成读磁头的每个磁阻元件的第一和第二端分别连接到线路导体和相应交点的列导体，并且通过开关元件对每个线路和列导体施加控制电压 线导体，列导体连接到电流传感器。 读取头的控制的简化是由这种布置引起的，同时避免了未被选择的磁头对所选磁头的电流变化的影响。
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9.发明授权Magnetic device and process for production of magnetoresistive sensors according to this process 失效根据这个过程生产磁阻传感器的磁性装置和工艺
公开(公告)号：US5306573A
公开(公告)日：1994-04-26
申请号：US4650
申请日：1993-01-14
CPC分类号： G11B5/3958 , G11B5/3903 , G11B5/3163 , Y10S428/90 , Y10T29/49036 , Y10T29/49046 , Y10T29/49048 , Y10T428/1171
摘要： The invention relates to a process for producing a plurality of magnetoresistive sensors on the same substrate. The invention particularly has as its object to facilitate a polishing phase of this process. The process of the invention comprises depositing a layer of a magnetoresistive material on a substrate, and then forming in this layer a plurality of magnetoresistive elements. The process further comprises making, at the site of each sensor and before the depositing the magnetoresistive layer, an inclined surface, in such a way that each magnetoresistive element is formed on this inclined surface and exhibits an edge directed outward from the substrate.
摘要翻译： 本发明涉及在同一基板上制造多个磁阻传感器的方法。 本发明的目的是为了便于该方法的抛光阶段。 本发明的方法包括在衬底上沉积磁阻材料层，然后在该层中形成多个磁阻元件。 该方法还包括在每个传感器的位置和在沉积磁阻层之前制成一个倾斜表面，使得每个磁阻元件形成在该倾斜表面上并呈现出从基板向外指向的边缘。
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10.发明授权
公开(公告)号：US5042140A
公开(公告)日：1991-08-27
申请号：US506904
申请日：1990-04-10
IPC分类号： G11B5/127 , G11B5/187 , G11B5/23 , G11B5/31 , H01L21/302
CPC分类号： G11B5/3163 , H01L21/302 , Y10T29/49044 , Y10T29/49046
摘要： A process of manufacturing an apparatus incorporating a layered thin film structure, wherein said process more particularly obviates the need to repeat on a first part of the apparatus the effects of certain operations required to produce the second part formed by the layered thin film structure. For this purpose, the process consists of utilizing a substrate to produce an intermediate assembly (12) comprising the thin film structure (11), then attaching the intermediate assembly (12) to the first part (10), then at least partially eliminating the intermediate substrate (13).
摘要翻译： 一种制造包含层状薄膜结构的装置的方法，其中所述方法更具体地避免了在装置的第一部分上重复生产由层状薄膜结构形成的第二部分所需的某些操作的效果的需要。 为此，该方法包括利用基底以产生包括薄膜结构（11）的中间组件（12），然后将中间组件（12）附接到第一部分（10），然后至少部分地消除 中间基板（13）。
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