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1. 发明申请

WO2004109725A1 METHOD OF MANUFACTURING A DEVICE WITH A MAGNETIC LAYER-STRUCTURE 审中-公开
标题翻译：制造具有磁性层结构的器件的方法
公开(公告)号：WO2004109725A1
公开(公告)日：2004-12-16
申请号：PCT/IB2004/050811
申请日：2004-06-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , RUIGROK, Jacobus, J., M. , VAN ZON, Joannes, B., A., D. , VANHELMONT, Frederik W., M. , GEVEN, Willem, J., A.
发明人： RUIGROK, Jacobus, J., M. , VAN ZON, Joannes, B., A., D. , VANHELMONT, Frederik W., M. , GEVEN, Willem, J., A.
IPC分类号： H01F41/14
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G01R33/093 , G11B5/3163 , G11B5/3173 , G11B5/3909 , G11B2005/3996 , H01F10/3254 , H01F10/3272 , H01F41/302 , H01L43/12 , Y10T428/1107
摘要： A method of manufacturing a device with a magnetic layer-structure is disclosed, the method comprising the steps of: - forming the magnetic layer-structure (2), - heating the magnetic layer-structure with an electric current, wherein the electric current is a pulse (3) having a duration such that no substantial heat transfer from the layer-structure to the environment (4) of the layer- structure takes place, so that the temperature of said environment before and after the current pulse is substantially the same. Heat is substantially dissipated in the layer-structure. The method therefore allows the selection of physical processes in the layer-structure in order to optimize the magnetic or electrical characteristic of the magnetoresistive device, without disturbing the environment such as neighboring devices. The method can advantageously be used to set different magnetization directions (9, 10) in the bias layers (5,7) of different magnetoresistive devices (12,13,14,15) arranged in a Wheatstone bridge configuration (16), or to reduce offset in the output characteristic of said Wheatstone bridge.
摘要翻译：公开了一种制造具有磁性层结构的器件的方法，该方法包括以下步骤：形成磁性层结构（2）， - 用电流加热磁性层结构，其中电流为具有持续时间的脉冲（3），使得不会发生从层结构到层结构的环境（4）的实质热传递，使得在电流脉冲之前和之后的所述环境的温度基本相同。热量基本上消散在层结构中。因此，该方法允许在层结构中选择物理过程，以便优化磁阻器件的磁特性或电特性，而不会干扰诸如相邻器件的环境。该方法可以有利地用于设置布置在惠斯登电桥配置（16）中的不同磁阻器件（12,13,14,15）的偏置层（5,7）中的不同磁化方向（9,10），或者减少惠斯通电桥输出特性的偏移。

2. 发明申请

WO2002099451A2 METHOD OF ORIENTING AN AXIS OF MAGNETIZATION OF A FIRST MAGNETIC ELEMENT WITH RESPECT TO A SECOND MAGNETIC ELEMENT, SEMIMANUFACTURE FOR OBTAINING A SENSOR, SENSOR FOR MEASURING A MAGNETIC FIELD 审中-公开
标题翻译：面向第一磁性元件的磁化轴相对于第二磁性元件的方法，用于获得传感器的SEMEMANUFACTURE，用于测量磁场的传感器
公开(公告)号：WO2002099451A2
公开(公告)日：2002-12-12
申请号：PCT/IB2002/001916
申请日：2002-05-29
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： VAN ZON, Joannes, B., A., D. , RUIGROK, Jacobus, J., M. , GIEBELER, Carsten
IPC分类号： G01R33/09
CPC分类号： G01R33/09
摘要： A method of orienting the axis of magnetization of a first magnetic element (2) with respect to a second magnetic element (3), wherein the first element (2) and the second element (3) are present on a substrate (1), and each of the magnetic elements has a first magnetic layer (10) with an axis of magnetization (11), said method including the step of depositing a pattern of flux-concentrating means (20) close to the first magnetic element (2) and subsequently orienting the axis of magnetization (11) of said first magnetic element (2) in an applied magnetic field. The semi-finished article for obtaining a sensor for measuring a magnetic field comprises a substrate (1), a first magnetic element (2), a second magnetic element (3), a third magnetic element (4) and a fourth magnetic element (5) on the substrate (1) in a bridge configuration comprising, between a first contact (6) and a second contact (7), a first bridge portion (8) wherein the first element (2) and the second element (3) are electrically connected in series and a second bridge portion (9) wherein the third element (4) and the fourth element (5) are electrically connected in series. Each of the magnetic elements contains a first magnetic layer (10) having an axis of magnetization (11), the axes of magnetization (11) of the first magnetic layers of the elements (2, 3) in the first bridge portion (8) as well as the axes of magnetization of the elements (4, 5) in the second bridge portion (9) being oriented so as to extend in opposite directions. Close to each of the contacts (6, 7), the axis of magnetization (11) of the element of the first bridge portion (8) is oppositely oriented with respect to the element of the second bridge portion (9). Magnetic flux-concentrating means (14) are present for the first magnetic element (2) of the first bridge portion (8) and for the element of the second bridge portion (9) having the same orientation of the axis of magnetization (11) as the first element (2). In order to improve the sensitivity of the sensor, magnetic flux-concentrating means (14) are provided for each magnetic element.
摘要翻译：用于获得用于测量磁场的传感器的半成品包括基板（1）和第一磁性元件（2），第二磁性元件（3），第三磁性元件（4）和第四磁性元件（5）桥接配置。每个磁性元件包括具有磁化轴线（11）的第一磁性层（10），第一桥接部分（8）中元件（2,3）的第一磁性层的磁化轴线（11）以及第二桥接部分（9）中的元件（4,5）的磁化轴线被定向成在相反的方向上延伸。靠近每个触头（6,7），第一桥接部分（8）的元件的磁化轴线（11）相对于第二桥接部分（9）的元件相对定向。对于第一桥接部分（8）的第一磁性元件（2）和具有相同取向的磁化（11）的第二桥接部分（9）的元件存在磁通集中装置（14）作为第一元素（2）。

3. 发明授权

EP1399748B1 SEMIMANUFACTURE FOR A SENSOR FOR MEASURING A MAGNETIC FIELD 有权
标题翻译：半成品FOR传感器，用于测量磁场
公开(公告)号：EP1399748B1
公开(公告)日：2009-10-07
申请号：EP02733067.9
申请日：2002-05-29
申请人： Koninklijke Philips Electronics N.V.
发明人： VAN ZON, Joannes, B., A., D. , RUIGROK, Jacobus, J., M. , GIEBELER, Carsten
IPC分类号： G01R33/09
CPC分类号： G01R33/09
摘要： The semi-finished article for obtaining a sensor for measuring a magnetic field comprises a substrate (1) and a first magnetic element (2), a second magnetic element (3), a third magnetic element (4), and a fourth magnetic element (5) in a bridge configuration. Each of the magnetic elements contains a first magnetic layer (10) having an axis of magnetization (11), the axes of magnetization (11) of the first magnetic layers of the elements (2, 3) in the first bridge portion (8) as well as the axes of magnetization of the elements (4, 5) in the second bridge portion (9) being oriented so as to extend in opposite directions. Close to each of the contacts (6, 7), the axis of magnetization (11) of the element of the first bridge portion (8) is oppositely oriented with respect to the element of the second bridge portion (9). Magnetic flux-concentrating means (14) are present for the first magnetic element (2) of the first bridge portion (8) and for the element of the second bridge portion (9) having the same orientation of the axis of magnetization (11) as the first element (2).

4. 发明公开

EP1636810A1 METHOD OF MANUFACTURING A DEVICE WITH A MAGNETIC LAYER-STRUCTURE 审中-公开
标题翻译：方法与磁性层结构的装置
公开(公告)号：EP1636810A1
公开(公告)日：2006-03-22
申请号：EP04735639.9
申请日：2004-06-01
申请人： Koninklijke Philips Electronics N.V.
发明人： RUIGROK, Jacobus, J., M. , VAN ZON, Joannes, B., A., D. , VANHELMONT, Frederik W., M. , GEVEN, Willem, J., A.
IPC分类号： H01F41/14 , H01F10/32 , H01F13/00 , G11B5/39 , H01L43/12 , G01R33/09
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G01R33/093 , G11B5/3163 , G11B5/3173 , G11B5/3909 , G11B2005/3996 , H01F10/3254 , H01F10/3272 , H01F41/302 , H01L43/12 , Y10T428/1107
摘要： A method of manufacturing a device with a magnetic layer-structure is disclosed, the method comprising the steps of: - forming the magnetic layer-structure (2), - heating the magnetic layer-structure with an electric current, wherein the electric current is a pulse (3) having a duration such that no substantial heat transfer from the layer-structure to the environment (4) of the layer- structure takes place, so that the temperature of said environment before and after the current pulse is substantially the same. Heat is substantially dissipated in the layer-structure. The method therefore allows the selection of physical processes in the layer-structure in order to optimize the magnetic or electrical characteristic of the magnetoresistive device, without disturbing the environment such as neighboring devices. The method can advantageously be used to set different magnetization directions (9, 10) in the bias layers (5,7) of different magnetoresistive devices (12,13,14,15) arranged in a Wheatstone bridge configuration (16), or to reduce offset in the output characteristic of said Wheatstone bridge.

5. 发明授权

EP0970468B1 METHODS FOR CREATING A MAGNETICALLY PERMEABLE FILM 有权
标题翻译：用于生产磁性膜渗透
公开(公告)号：EP0970468B1
公开(公告)日：2007-01-17
申请号：EP99900095.3
申请日：1999-01-18
申请人： Koninklijke Philips Electronics N.V.
发明人： BLOEMEN, Pascal, J., H. , RUIGROK, Jacobus, J., M.
IPC分类号： G11B5/85 , H01F41/14
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G11B5/3113 , G11B5/3163 , G11B5/3925 , G11B2005/3996 , H01F41/14 , H01F41/18 , H01F41/30
摘要： A method for creating a magnetically permeable film (5) on a surface (3) by deposition of a magnetic material, during which deposition a magnetic field (H) is present near said surface, which field has a field direction which is substantially parallel to the surface. In order to tune the permeability of the magnetic material during deposition the method comprises the steps of: 1) building up the magnetically permeable film by forming a magnetically permeable layer (2, 4) formed by depositing a ferromagnetic material to a thickness (t1+t2), maximally corresponding to substantially 1/2 π Lex, where Lex is equal to √A/Ku with A being the exchange constant of the ferromagnetic material and Ku being the uniaxial anisotropy constant, and; 2) changing the field direction of the magnetic field, except a change over solely an angle of substantially 180°, during the forming of the magnetically permeable layer.

6. 发明公开

EP1051635A1 MAGNETORESISTIVE MAGNETIC FIELD SENSOR 审中-公开
标题翻译：磁力传感器
公开(公告)号：EP1051635A1
公开(公告)日：2000-11-15
申请号：EP99950651.2
申请日：1999-10-05
申请人： Koninklijke Philips Electronics N.V.
发明人： RUIGROK, Jacobus, J., M.
IPC分类号： G01R33/09
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 such like 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.

7. 发明公开

EP0970468A2 METHODS FOR CREATING A MAGNETICALLY PERMEABLE FILM 有权
标题翻译：用于生产磁性膜渗透
公开(公告)号：EP0970468A2
公开(公告)日：2000-01-12
申请号：EP99900095.3
申请日：1999-01-18
申请人： Koninklijke Philips Electronics N.V.
发明人： BLOEMEN, Pascal, J., H. , RUIGROK, Jacobus, J., M.
IPC分类号： G11B5/85 , H01F41/14
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G11B5/3113 , G11B5/3163 , G11B5/3925 , G11B2005/3996 , H01F41/14 , H01F41/18 , H01F41/30
摘要： A method for creating a magnetically permeable film (5) on a surface (3) by deposition of a magnetic material, during which deposition a magnetic field (H) is present near said surface, which field has a field direction which is substantially parallel to the surface. In order to tune the permeability of the magnetic material during deposition the method comprises the steps of: 1) building up the magnetically permeable film by forming a magnetically permeable layer (2, 4) formed by depositing a ferromagnetic material to a thickness (t1+t2), maximally corresponding to substantially 1/2 π Lex, where Lex is equal to √A/Ku with A being the exchange constant of the ferromagnetic material and Ku being the uniaxial anisotropy constant, and; 2) changing the field direction of the magnetic field, except a change over solely an angle of substantially 180°, during the forming of the magnetically permeable layer.

8. 发明公开

EP1410383A1 STORAGE MEDIUM FOR THERMALLY-ASSISTED MAGNETIC RECORDING 审中-公开
标题翻译：存储设备的热辅助磁记录
公开(公告)号：EP1410383A1
公开(公告)日：2004-04-21
申请号：EP01938059.1
申请日：2001-03-27
申请人： Koninklijke Philips Electronics N.V.
发明人： RUIGROK, Jacobus, J., M. , LUITJENS, Steven, B.
IPC分类号： G11B5/012 , G11B5/02 , G11B5/00
CPC分类号： G11B5/012 , G11B5/00 , G11B5/1278 , G11B5/553 , G11B5/59644 , G11B5/74 , G11B5/82 , G11B5/855 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A storage medium for thermally-assisted magnetic recording has a recording layer which substantially parallel tracks for recording information. The recording layer includes a series of recording regions (51, 52), each region comprising a plurality of tracks for magnetically recording information. The tracks (53) in a region have a pitch p, and a region extends a distance 1/2 p beyond a centre line of the outermost track of the region. Neighbouring regions are separated from one another by magnetically non-recording areas (54) having a width substantially equal to or larger than the pitch p. The writing of one region does not have thermal cross-talk on other regions.

9. 发明公开

EP1399748A2 SEMIMANUFACTURE FOR A SENSOR FOR MEASURING A MAGNETIC FIELD 有权
标题翻译：半成品FOR传感器，用于测量磁场
公开(公告)号：EP1399748A2
公开(公告)日：2004-03-24
申请号：EP02733067.9
申请日：2002-05-29
申请人： Koninklijke Philips Electronics N.V.
发明人： VAN ZON, Joannes, B., A., D. , RUIGROK, Jacobus, J., M. , GIEBELER, Carsten
IPC分类号： G01R33/09
CPC分类号： G01R33/09
摘要： The semi-finished article for obtaining a sensor for measuring a magnetic field comprises a substrate (1) and a first magnetic element (2), a second magnetic element (3), a third magnetic element (4), and a fourth magnetic element (5) in a bridge configuration. Each of the magnetic elements contains a first magnetic layer (10) having an axis of magnetization (11), the axes of magnetization (11) of the first magnetic layers of the elements (2, 3) in the first bridge portion (8) as well as the axes of magnetization of the elements (4, 5) in the second bridge portion (9) being oriented so as to extend in opposite directions. Close to each of the contacts (6, 7), the axis of magnetization (11) of the element of the first bridge portion (8) is oppositely oriented with respect to the element of the second bridge portion (9). Magnetic flux-concentrating means (14) are present for the first magnetic element (2) of the first bridge portion (8) and for the element of the second bridge portion (9) having the same orientation of the axis of magnetization (11) as the first element (2).

10. 发明公开

EP1297533A1 MAGNETIC MEMORY 有权
标题翻译：磁记忆
公开(公告)号：EP1297533A1
公开(公告)日：2003-04-02
申请号：EP01940492.0
申请日：2001-05-16
申请人： Koninklijke Philips Electronics N.V.
发明人： LENSSEN, Kars-Michiel, H. , RUIGROK, Jacobus, J., M.
IPC分类号： G11C11/16 , G11C11/15 , G11C11/14
CPC分类号： G11C11/16 , G11C11/14 , G11C11/15 , Y10T428/325
摘要： The object of the invention is the shielding of a magnetic memory against high external magnetic fields. The magnetic memory (1) comprises an array of magnetic memory elements (2), each memory element (3) including at least one layer of magnetic material (4). The operation of the magnetic memory elements (3) is based on a magnetoresistance effect. The memory (1) is protected against high external magnetic fields by a shielding layer (14), which has been split into regions (5) covering the memory elements (3). The magnetic memory (1) is not erased by high external magnetic fields because of a strong attenuation of the external magnetic field by the regions (5) of the shielding layer (14).
摘要翻译：本发明的目的是防止高磁场对磁存储器的屏蔽。磁存储器（1）包括磁存储元件（2）的阵列，每个存储元件（3）包括至少一个磁性材料层（4）。磁存储元件（3）的操作基于磁阻效应。存储器（1）通过已被分成覆盖存储元件（3）的区域（5）的屏蔽层（14）受到高外部磁场的保护。由于屏蔽层（14）的区域（5）对外部磁场的强烈衰减，磁存储器（1）不会被高外部磁场擦除。

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