公开(公告)号：US09530957B2

公开(公告)日：2016-12-27

申请号：US13446264

申请日：2012-04-13

申请人： Shinji Sugihara ,  Fumihito Koike ,  Yasushi Watanabe ,  Hideto Ando

发明人： Shinji Sugihara ,  Fumihito Koike ,  Yasushi Watanabe ,  Hideto Ando

IPC分类号： G01R33/09 ,  H01L43/08 ,  B82Y25/00 ,  G01R33/02

CPC分类号： H01L43/08 ,  B82Y25/00 ,  G01R33/0206 ,  G01R33/093

摘要： A magnetic sensor includes magnetoresistive elements and a soft magnetic body. The magnetoresistive elements have multi layers including a magnetic layer and a nonmagnetic layer on a substrate, and exert a magnetoresistance effect. The soft magnetic body is electrically disconnected with the magnetoresistive elements, and converts a vertical magnetic field component from the outside into a magnetic field component in a horizontal direction so as to provide the magnetoresistive elements with the horizontally converted magnetic field component. The magnetoresistive elements have a pinned magnetic layer having a fixed magnetization direction and a free magnetic layer having a variable magnetization direction. The free magnetic layer is stacked on the pinned magnetic layer with a nonmagnetic layer interposed between the free magnetic layer and the pinned magnetic layer. The magnetization directions of the pinned magnetic layers of the magnetoresistive elements are the same direction. The magnetoresistive elements form a bridge circuit.

摘要翻译： 磁传感器包括磁阻元件和软磁体。 磁阻元件具有在基板上包括磁性层和非磁性层的多层，并施加磁阻效应。 软磁体与磁阻元件电气断开，并将来自外部的垂直磁场分量在水平方向上转换成磁场分量，从而为磁阻元件提供水平转换的磁场分量。 磁阻元件具有固定磁化方向的固定磁性层和具有可变磁化方向的自由磁性层。 自由磁性层被叠置在被钉扎的磁性层上，其中非磁性层介于自由磁性层和被钉扎的磁性层之间。 磁阻元件的钉扎磁性层的磁化方向是相同的方向。 磁阻元件形成桥接电路。

公开(公告)号：US20120032673A1

公开(公告)日：2012-02-09

申请号：US13274258

申请日：2011-10-14

申请人： Shuji MAEKAWA ,  Kota ASATSUMA ,  Fumihito KOIKE ,  Hideto ANDO

发明人： Shuji MAEKAWA ,  Kota ASATSUMA ,  Fumihito KOIKE ,  Hideto ANDO

IPC分类号： G01R33/02

CPC分类号： H01L43/08 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098

摘要： First magnetoresistive effect elements and second magnetoresistive effect elements and are formed on the same substrate. A pinned magnetic layer of each of the first magnetoresistive effect elements has a three-layer laminated ferrimagnetic structure including magnetic layers. A pinned magnetic layer of each of the second magnetoresistive effect elements has a two-layer laminated ferrimagnetic structure including magnetic layers. The magnetization direction of the third magnetic layer of each of the magnetoresistive effect elements is antiparallel to the magnetization direction of the second magnetic layer of each of the second magnetoresistive effect elements.

摘要翻译： 第一磁阻效应元件和第二磁阻效应元件并形成在相同的衬底上。 每个第一磁阻效应元件的钉扎磁性层具有包括磁性层的三层叠层铁磁结构。 每个第二磁阻效应元件的钉扎磁性层具有包括磁性层的双层叠层铁磁结构。 每个磁阻效应元件的第三磁性层的磁化方向与每个第二磁阻效应元件的第二磁性层的磁化方向反平行。

公开(公告)号：US07834619B2

公开(公告)日：2010-11-16

申请号：US12703401

申请日：2010-02-10

申请人： Hideto Ando ,  Shinji Sugihara

发明人： Hideto Ando ,  Shinji Sugihara

IPC分类号： G01R33/02

CPC分类号： G01R33/093 ,  B82Y25/00 ,  H01L43/08

摘要： A magnetic detection device includes a sensor unit including a sensor pattern having a plurality of magnetoresistance effect films whose ends in the length direction thereof are coupled via return portions, and electrode units formed at both ends of the sensor pattern in the longitudinal direction thereof. A non-magnetic conductor is electrically connected across a top surface of one of a pair of magnetoresistance effect films that are coupled via the corresponding one of the return portions and that face each other and a top surface of the other magnetoresistance effect film. Therefore, the resistance value between the electrode units can be adjusted without increasing the dimensions of the sensor unit, and deterioration or variation in magnetic characteristics can be reduced.

摘要翻译： 磁检测装置包括传感器单元，该传感器单元包括具有多个磁阻效应膜的传感器图案，该多个磁阻效应膜的长度方向的端部通过返回部分耦合，以及形成在传感器图案的纵向两端的电极单元。 非磁性导体跨越通过相应的一个返回部分并且彼此面对的另一个磁阻效应膜的顶表面耦合的一对磁阻效应膜之一的顶表面电连接。 因此，可以在不增加传感器单元的尺寸的情况下调节电极单元之间的电阻值，并且可以降低磁特性的劣化或变化。

公开(公告)号：US07800365B2

公开(公告)日：2010-09-21

申请号：US12623029

申请日：2009-11-20

申请人： Kiyoshi Sato ,  Hideto Ando ,  Hideki Gochou

发明人： Kiyoshi Sato ,  Hideto Ando ,  Hideki Gochou

IPC分类号： G01R33/04

CPC分类号： G01R33/093 ,  B82Y25/00

摘要： An integrated circuit is provided with two output terminals and a mode switch circuit which includes a pair of switch terminals. The mode switch circuit is allowed to switch the output mode between the 1-output mode for outputting the (+) magnetic field detection signal and the (−) magnetic field detection signal from the output terminal, and the 2-output mode for outputting the (+) magnetic field signal from the output terminal as one of the output terminals, and the (−) magnetic field detection signal from the output terminal as the other output terminal in accordance with the shortcircuit state or the non-shortcircuit state between the switch terminals. The switch terminals are exposed on the surface of the device, and the shortcircuit state and the non-shortcircuit state may be externally adjusted.

摘要翻译： 集成电路具有两个输出端子和一个包括一对开关端子的模式开关电路。 允许模式切换电路在用于输出（+）磁场检测信号和来自输出端子的（ - ））磁场检测信号的1输出模式之间切换输出模式，以及用于输出 （+）磁场信号作为输出端子之一，以及根据短路状态或开关之间的非短路状态的来自输出端子的（ - ）磁场检测信号作为另一输出端子 终端。 开关端子被暴露在器件的表面上，并且可以从外部调节短路状态和非短路状态。

公开(公告)号：US20090045810A1

公开(公告)日：2009-02-19

申请号：US12256798

申请日：2008-10-23

申请人： Shinji Sugihara ,  Hideto Ando ,  Shinich Sasaki

发明人： Shinji Sugihara ,  Hideto Ando ,  Shinich Sasaki

IPC分类号： G01R33/09 ,  G01R3/00

CPC分类号： H01L27/22 ,  B82Y25/00 ,  G01R33/093 ,  Y10T29/4902

摘要： A magnetic detecting device includes a first and a second magnetoresistive element, and a first and a second fixed resistor connected in series to the first and the second magnetoresistive element, respectively. The first and the second magnetoresistive element each include a pinned magnetic layer and a free magnetic layer with a nonmagnetic conductive layer in between. The first and the second magnetoresistive element have the same layer structure except that the nonmagnetic conductive layers have different thicknesses. The thicknesses of the nonmagnetic conductive layers are set so that a positive interlayer coupling magnetic field acts between the free magnetic layer and the pinned magnetic layer of the first magnetoresistive element and a negative interlayer coupling magnetic field acts between the free magnetic layer and the pinned magnetic layer of the second magnetoresistive element. The first and the second fixed resistor have the same layer structure.

摘要翻译： 磁检测装置包括分别与第一和第二磁阻元件串联连接的第一和第二磁阻元件以及第一和第二固定电阻器。 第一和第二磁阻元件各自包括钉扎磁性层和其间具有非磁性导电层的自由磁性层。 第一和第二磁阻元件具有相同的层结构，除了非磁性导电层具有不同的厚度。 非磁性导电层的厚度被设定为使得正的层间耦合磁场作用在自由磁性层和第一磁阻元件的被钉扎的磁性层之间，负的层间耦合磁场作用在自由磁性层和固定磁体之间 第二磁阻元件的层。 第一和第二固定电阻具有相同的层结构。

公开(公告)号：US20120007593A1

公开(公告)日：2012-01-12

申请号：US13239856

申请日：2011-09-22

申请人： Hitoshi YAMAZAKI ,  Hideto ANDO

发明人： Hitoshi YAMAZAKI ,  Hideto ANDO

IPC分类号： G01B7/30 ,  G01R33/02

CPC分类号： G01D5/24438 ,  G01D5/145

摘要： In a magnetic chip package including a metal thin film, which is constituted of a metal material containing a magnetic body and is disposed on a surface of a plastic substrate opposite to the side a sensor chip is fixed, a demagnetizing field is generated in the metal thin film in a direction orthogonal to the direction of a magnetic field detected by a magnetic sensor. Specifically, the metal thin film is formed of plural metal thin sub-films, each metal thin sub-film having a rectangular shape with a length orthogonal to the direction of the magnetic field detected by the magnetic sensor larger than a width parallel to the direction of the magnetic field, and each metal thin sub-films are aligned at predetermined intervals in a direction parallel to the direction of the detected magnetic field.

摘要翻译： 在包含金属薄膜的磁性芯片封装中，该金属薄膜由含有磁性体的金属材料构成，并且被设置在与传感器芯片的侧面相反的塑料基板的表面上，在金属中产生退磁场 在与磁传感器检测的磁场方向正交的方向上的薄膜。 具体地说，金属薄膜由多个金属薄膜形成，每个金属薄膜具有矩形形状，其长度与由磁性传感器检测到的磁场方向正交的长度大于平行于该方向的宽度 的磁场，并且每个金属薄子膜在与检测到的磁场的方向平行的方向上以预定间隔对准。

公开(公告)号：US20080054888A1

公开(公告)日：2008-03-06

申请号：US11679015

申请日：2007-02-26

申请人： Hideto Ando ,  Hideki Gochou ,  Motoki Hirayama

发明人： Hideto Ando ,  Hideki Gochou ,  Motoki Hirayama

IPC分类号： G01D5/12

CPC分类号： G01D5/142

摘要： In a magnetic detection device using a magnetic resistance element, the resistance of a layer having a multi-layer structure can be easily adjusted without causing damages to the layer. A magneto-resistance layer is connected in series to a reference resistance layer, and a magneto-resistance layer is connected in series to a reference resistance layer on a substrate. A voltage is applied between a power supply layer and a grounding layer. A first output conductive layer and the reference resistance layer extend in parallel to each other so that they are partially electrically connected to each other via a connection layer. A second output conductive layer and the reference resistance layer extend in parallel to each other so that they are partially electrically connected to each other via a connection layer. Accordingly, it is possible to adjust the resistance of the reference resistance layers by selecting the respective positions of the connection layers.

摘要翻译： 在使用磁阻元件的磁检测装置中，可以容易地调整具有多层结构的层的电阻而不会对该层造成损害。 磁阻层与基准电阻层串联连接，并且磁电阻层与衬底上的参考电阻层串联连接。 在电源层和接地层之间施加电压。 第一输出导电层和参考电阻层彼此并联延伸，使得它们经由连接层部分地彼此电连接。 第二输出导电层和参考电阻层彼此并联延伸，使得它们经由连接层部分地彼此电连接。 因此，可以通过选择连接层的各个位置来调整参考电阻层的电阻。