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公开(公告)号：WO00054260A1
公开(公告)日：2000-09-14
申请号：PCT/EP2000/001172
申请日：2000-02-14
CPC classification number: G11B5/3919 , G11B5/147
Abstract: Magnetic head (1) having a head face (3) and a layer structure (7) comprising a first magnetic layer (13a, 13b), a second magnetic layer (17) and a thin insulation layer (19a, 19b) electrically separating these magnetic layers. At least the first layer of these magnetic layers comprises an amorphous cobalt alloy and is an integral part of the first magnetic layer comprising the amorphous cobalt alloy.
Abstract translation: 具有头表面（3）和层结构（7）的磁头（1）包括第一磁性层（13a，13b），第二磁性层（17）和薄绝缘层（19a，19b） 磁性层。 这些磁性层的至少第一层包括无定形钴合金，并且是包含非晶态钴合金的第一磁性层的组成部分。
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公开(公告)号：WO1997011499A1
公开(公告)日：1997-03-27
申请号：PCT/JP1996002702
申请日：1996-09-19
Applicant: TDK CORPORATION , ARAKI, Satoru , SATO, Yuichi , SHINOURA, Osamu
Inventor： TDK CORPORATION
IPC: H01L43/08
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/39 , G11B5/3903 , G11B5/3919 , G11B5/3922 , G11B5/3925 , G11B5/3932 , G11B5/399 , G11B2005/3996 , H01F10/3268 , H01L43/08 , H01L43/10
Abstract: A magnetic transducer provided with a spin valve type magnetoresistance effect element having a specially high corrosion resistance and such a rate of change of resistance that the MR inclination is larger than 0.7 %/Oe in a 1 MH3 high-frequency magnetic field region since the pinning layer is made of antiferromagnetic iron oxide FeOx. The effect element has an extremely excellent rise characteristic of the MR curve in a zero magnetic field, a small hysteresis, and a high heat resistance. The effect of the heat resistance is further enhanced when an oxygen blocking layer is interposed between the pinning layer and a ferromagnetic layer. A magnetic transducer using a magnetoresistance effect element having a multilayered magnetic film, such as an MR head, has an output voltage which is nearly five times as high as that of a magnetic transducer using a conventional material. Therefore, an extremely highly reliable excellent MR head which reads out data magnetically recorded at an ultrahigh density of > 1 Gbit/inch is provided.
Abstract translation: 一种具有自旋阀型磁阻效应元件的磁性换能器，其具有特别高的耐腐蚀性，并且这种磁阻变化率使得MR倾斜度大于0.7M / Oe，因为钉扎后的1 MH3高频磁场区域 层由反铁磁性氧化铁FeOx制成。 该效应元件在零磁场，小磁滞和高耐热性方面具有非常优异的MR曲线的上升特性。 当阻氧层插入在钉扎层和铁磁层之间时，耐热性的影响进一步提高。 使用具有诸如MR磁头的多层磁性膜的磁电阻效应元件的磁换能器具有的输出电压几乎是使用传统材料的磁换能器的输出电压的五倍。 因此，提供了非常可靠的优异的MR头，其以超高密度> 1Gbit / inch <2>磁性地读出数据。
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公开(公告)号：WO2002101731A2
公开(公告)日：2002-12-19
申请号：PCT/GB2002/002667
申请日：2002-05-30
Inventor： GILL, Hardayal, Singh
IPC: G11B5/39
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/3133 , G11B5/3909 , G11B5/3919 , G11B5/3925 , G11B5/3967 , G11B5/40 , G11B2005/3996
Abstract: A read head includes electrically conductive ferromagnetic first (Y1, 226) and second (Y2, 228) yoke layers and a tunnel valve sensor (201) which is recessed from the ABS and is located between the first and second yoke layers. The first and second yoke layers extend to an air bearing surface (ABS) for conducting flux to the sensor and extend into the head beyond the sensor. A bottom copper structure (246) interfaces a bottom surface of the tunnel valve sensor and a top copper structure (248) interfaces a top surface of the tunnel valve sensor. In a first embodiment of the invention, the first and second copper structures conduct heat from the sensor to the first and second yoke layers respectively, and in a second embodiment of the invention the bottom copper structure conducts heat to a substrate (245) while the top copper structure conducts from the sensor to the second yoke layer. Further, in the first embodiment the first and second yoke layers serve as leads for a tunneling current while in the second embodiment the bottom copper structure and the second yoke layer serve as leads for the tunneling current.
Abstract translation: 读头包括导电铁磁第一（Y1,226）和第二（Y2,228）磁轭层和从ABS凹入并位于第一和第二磁轭层之间的隧道阀传感器（201）。 第一和第二磁轭层延伸到空气轴承表面（ABS），用于将助焊剂传导到传感器并延伸到头部超过传感器。 底部铜结构（246）与隧道阀传感器的底表面接合，顶部铜结构（248）与隧道阀传感器的顶表面相接。 在本发明的第一实施例中，第一和第二铜结构分别将热量从传感器传导到第一和第二磁轭层，并且在本发明的第二实施例中，底部铜结构将热量传导到衬底（245），而 顶部铜结构从传感器传导到第二磁轭层。 此外，在第一实施例中，第一和第二磁轭层用作隧道电流的引线，而在第二实施例中，底部铜结构和第二磁轭层用作隧道电流的引线。
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公开(公告)号：WO00033358A1
公开(公告)日：2000-06-08
申请号：PCT/EP1999/009092
申请日：1999-11-19
IPC: G11B5/127 , G11B5/31 , G11B5/39 , G11B11/105 , H01L21/00 , H01L21/3105 , H01L21/66
CPC classification number: G11B5/3919 , G11B5/3106 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3166 , G11B11/10534 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046
Abstract: Method of forming an assembly of layers, making use of a first layer (105) having a recess (107) and a second layer (117) which is deposited on the first layer, whereby the recess is filled. After forming the second layer, a polishing treatment is carried out so as to create a flat and smooth surface (119). An intermediate layer (109) is formed prior to forming the second layer, which intermediate layer is formed by deposition of a material which is more resistant than the material of the second layer in order to have a restraining influence on the polishing treatment. Said treatment may be stopped after reaching the intermediate layer.
Abstract translation: 使用具有凹部（107）的第一层（105）和沉积在第一层上的第二层（117）来形成层组件的方法，由此填充凹槽。 在形成第二层之后，进行抛光处理，以形成平坦光滑的表面（119）。 在形成第二层之前形成中间层（109），该中间层通过沉积比第二层的材料更耐性的材料形成，以便对抛光处理具有约束作用。 所述处理可以在到达中间层之后停止。
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Patent Agency Ranking
公开(公告)号：WO99022368A3
公开(公告)日：1999-07-08
申请号：PCT/IB1998/001599
申请日：1998-10-12
CPC classification number: B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/332 , G11B5/3903 , G11B5/3919 , G11B5/3922
Abstract: A magnetic field sensor comprising a transducer element (1), whereby: (I) the transducer element (1) is a Spin Tunnel Junction, comprising a first (1a) and second (1b) magnetic layer which are sandwiched about an interposed electrical insulator layer (1c); (II) the sensor comprises a yoke (3) having two arms (3a, 3b); (III) the first magnetic layer (1a) is in direct contact with a first portion of a first arm (3a) of the yoke (3).
Abstract translation: 一种包括换能器元件（1）的磁场传感器，其中：（I）所述换能器元件（1）是旋转隧道结，包括第一（1a）和第二（1b）磁性层，所述第一（1a）和第二（1b） 层（1c）; （II）传感器包括具有两个臂（3a，3b）的轭（3）; （III），第一磁性层（1a）与磁轭（3）的第一臂（3a）的第一部分直接接触。
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公开(公告)号：WO02101731A3
公开(公告)日：2003-05-22
申请号：PCT/GB0202667
申请日：2002-05-30
Inventor： GILL HARDAYAL SINGH
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/3133 , G11B5/3909 , G11B5/3919 , G11B5/3925 , G11B5/3967 , G11B5/40 , G11B2005/3996
Abstract: A read head includes electrically conductive ferromagnetic first (Y1, 226) and second (Y2, 228) yoke layers and a tunnel valve sensor (201) which is recessed from the ABS and is located between the first and second yoke layers. The first and second yoke layers extend to an air bearing surface (ABS) for conducting flux to the sensor and extend into the head beyond the sensor. A bottom copper structure (246) interfaces a bottom surface of the tunnel valve sensor and a top copper structure (248) interfaces a top surface of the tunnel valve sensor. In a first embodiment of the invention, the first and second copper structures conduct heat from the sensor to the first and second yoke layers respectively, and in a second embodiment of the invention the bottom copper structure conducts heat to a substrate (245) while the top copper structure conducts from the sensor to the second yoke layer. Further, in the first embodiment the first and second yoke layers serve as leads for a tunneling current while in the second embodiment the bottom copper structure and the second yoke layer serve as leads for the tunneling current.
Abstract translation: 读头包括导电铁磁第一（Y1,226）和第二（Y2,228）磁轭层和从ABS凹入并位于第一和第二磁轭层之间的隧道阀传感器（201）。 第一和第二磁轭层延伸到空气轴承表面（ABS），用于将助焊剂传导到传感器并延伸到头部超过传感器。 底部铜结构（246）与隧道阀传感器的底表面接合，顶部铜结构（248）与隧道阀传感器的顶表面相接。 在本发明的第一实施例中，第一和第二铜结构分别将热量从传感器传导到第一和第二磁轭层，并且在本发明的第二实施例中，底部铜结构将热量传导到衬底（245），而 顶部铜结构从传感器传导到第二磁轭层。 此外，在第一实施例中，第一和第二磁轭层用作隧道电流的引线，而在第二实施例中，底部铜结构和第二磁轭层用作隧道电流的引线。
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公开(公告)号：WO0005712A9
公开(公告)日：2000-05-18
申请号：PCT/US9916571
申请日：1999-07-21
Applicant: SEAGATE TECHNOLOGY , MURDOCK EDWARD S
Inventor： MURDOCK EDWARD S
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/3136 , G11B5/332 , G11B5/3903 , G11B5/3919 , G11B5/40 , G11B2005/3996
Abstract: A method and apparatus for dissipating heat generated in a sensor element of a vertical magnetoresistive recording head or flux guide magnetoresistive recording head having a recess formed in the lower and/or upper magnetic shields for enhancing efficiency during reading data from a magnetic medium. Heat is dissipated through a non-magnetic metal filler layer (10, 12) formed in the shield recesses (140) between an upper (2) or lower (6) metal shield and a sensor element (4) comprising a magnetoresistive head structure. The metal filler (10, 12) must be non-magnetic, must avoid an electrical short between the sensor element and the upper (2) or lower (6) magnetic shield, and must be compatible with the adjacent shield in terms of adhesion thereto and the thermal expansion coefficient thereof. An insulator layer (11, 20) comprising an electrical insulator is formed between the sensor element (4) and the metal filler (10, 12) to insure electrical insulation. The metal filler (10, 12) acts as a thermal path from the sensor element (4) to the metal shields (2, 6).
Abstract translation: 一种用于消散在垂直磁阻记录头或磁通量引导磁阻记录头的传感器元件中产生的热量的方法和设备，所述磁阻记录头具有形成在下部和/或上部磁屏蔽中的凹槽，用于在从磁性介质读取数据期间提高效率。 热量通过形成在上部（2）或下部（6）金属屏蔽和包括磁阻头结构的传感器元件（4）之间的屏蔽凹槽（140）中的非磁性金属填充层（10,12）消散。 金属填充物（10,12）必须是非磁性的，必须避免传感器元件与上（2）或下（6）磁屏蔽之间的电短路，并且必须与相邻屏蔽在粘合方面兼容 及其热膨胀系数。 在传感器元件（4）和金属填充物（10,12）之间形成包括电绝缘体的绝缘层（11,20）以确保电绝缘。 金属填充物（10,12）充当从传感器元件（4）到金属屏蔽（2,6）的热路径。
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公开(公告)号：WO00005712A1
公开(公告)日：2000-02-03
申请号：PCT/US1999/016571
申请日：1999-07-21
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/3136 , G11B5/332 , G11B5/3903 , G11B5/3919 , G11B5/40 , G11B2005/3996
Abstract: A method and apparatus for dissipating heat generated in a sensor element of a vertical magnetoresistive recording head or flux guide magnetoresistive recording head having a recess formed in the lower and/or upper magnetic shields for enhancing efficiency during reading data from a magnetic medium. Heat is dissipated through a non-magnetic metal filler layer (10, 12) formed in the shield recesses (140) between an upper (2) or lower (6) metal shield and a sensor element (4) comprising a magnetoresistive head structure. The metal filler (10, 12) must be non-magnetic, must avoid an electrical short between the sensor element and the upper (2) or lower (6) magnetic shield, and must be compatible with the adjacent shield in terms of adhesion thereto and the thermal expansion coefficient thereof. An insulator layer (11, 20) comprising an electrical insulator is formed between the sensor element (4) and the metal filler (10, 12) to insure electrical insulation. The metal filler (10, 12) acts as a thermal path from the sensor element (4) to the metal shields (2, 6).
Abstract translation: 一种在垂直磁阻记录头或导磁体磁阻记录头的传感器元件中产生的热量的方法和装置，其具有形成在下磁屏蔽和/或上磁屏蔽中的凹部，以在从磁介质读取数据期间提高效率。 热量通过形成在上部（2）或下部（6）金属屏蔽和包括磁阻头部结构的传感器元件（4）之间的屏蔽凹槽（140）中的非磁性金属填充层（10,12）消散。 金属填料（10,12）必须是非磁性的，必须避免传感器元件与上（2）或下（6）磁屏蔽之间的电短路，并且必须与相邻的屏蔽件在粘附方面相容 及其热膨胀系数。 在传感器元件（4）和金属填料（10,12）之间形成包括电绝缘体的绝缘体层（11,20），以确保电绝缘。 金属填料（10,12）用作从传感器元件（4）到金属屏蔽件（2,6）的热路径。
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公开(公告)号：WO9922368A2
公开(公告)日：1999-05-06
申请号：PCT/IB9801599
申请日：1998-10-12
Applicant: KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB
CPC classification number: B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/332 , G11B5/3903 , G11B5/3919 , G11B5/3922
Abstract: A magnetic field sensor comprising a transducer element (1), whereby: (I) the transducer element (1) is a Spin Tunnel Junction, comprising a first (1a) and second (1b) magnetic layer which are sandwiched about an interposed electrical insulator layer (1c); (II) the sensor comprises a yoke (3) having two arms (3a, 3b); (III) the first magnetic layer (1a) is in direct contact with a first portion of a first arm (3a) of the yoke (3).
Abstract translation: 1。一种包括换能器元件（1）的磁场传感器，其中：（I）所述换能器元件（1）是旋转隧道结，其包括第一（1a）和第二（1b）磁性层，所述磁性层夹在插入的电绝缘体 层（1c）; （II）传感器包括具有两个臂（3a，3b）的轭（3）; （III）第一磁性层（1a）与轭（3）的第一臂（3a）的第一部分直接接触。
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