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31.发明授权Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element 有权磁场感应元件将圆形垂直霍尔磁场感测元件与平面霍尔元件相结合公开(公告)号：US08922206B2
公开(公告)日：2014-12-30
申请号：US13226694
申请日：2011-09-07
CPC分类号： G01R33/072 , G01R33/0052 , G01R33/077 , H01L43/065
摘要： A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.
摘要翻译： 磁场传感器包括圆形垂直霍尔（CVH）感测元件和至少一个平面霍尔元件。 CVH感测元件具有布置在衬底中的公共植入区域上的触点。 在一些实施例中，至少一个平面霍尔元件形成为也具有布置在公共植入区域上方的触点的圆形平面霍尔（CPH）感测元件。 分别描述CPH感测元件和制造CPH感测元件的方法。
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公开(公告)号：US20140176126A1
公开(公告)日：2014-06-26
申请号：US13724149
申请日：2012-12-21
IPC分类号： G01R33/02
CPC分类号： G01R33/02 , G01R33/077
摘要： Magnetic field sensor arrangements and methods provide a magnetic field sensor positioned proximate to a magnet with an axis of sensitivity aligned relative to the magnet in orientations that provide a good sensitivity and a mechanical difference from other arrangements.
摘要翻译： 磁场传感器布置和方法提供了一个靠近磁体定位的磁场传感器，其灵敏轴相对于磁体在取向上对准，这些方向提供了良好的灵敏度和与其它布置的机械差异。
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公开(公告)号：US20130238278A1
公开(公告)日：2013-09-12
申请号：US13413037
申请日：2012-03-06
CPC分类号： G01R33/077 , G01D5/145 , G01D5/24438 , G01R33/075
摘要： A magnetic field sensor uses an angle sensor to measure and angle of rotation of a target object to which a magnet is attached. The angle sensor in combination with electronics can generate an angle sensor output signal related to a direction of a magnetic field of the magnet. The angle sensor output signal can be compared to thresholds to generate a magnetic field sensor output signal the same as a known true power on state (TPOS) sensor output signal. A corresponding method is also described.
摘要翻译： 磁场传感器使用角度传感器来测量和附着磁体的目标物体的旋转角度。 与电子装置组合的角度传感器可以产生与磁体的磁场方向相关的角度传感器输出信号。 角度传感器输出信号可以与阈值进行比较，以产生与已知的真电源开启状态（TPOS）传感器输出信号相同的磁场传感器输出信号。 还描述了相应的方法。
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公开(公告)号：US08447556B2
公开(公告)日：2013-05-21
申请号：US12706318
申请日：2010-02-16
申请人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
发明人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
IPC分类号： G01R31/00
CPC分类号： G01R33/0035 , G01R33/0023 , G01R35/005
摘要： A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.
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35.发明申请Magnetic Field Sensor Having A Control Node To Receive A Control Signal To Adjust A Threshold 有权具有控制节点的磁场传感器以接收调节阈值的控制信号公开(公告)号：US20120280681A1
公开(公告)日：2012-11-08
申请号：US13102449
申请日：2011-05-06
CPC分类号： G01R33/0029 , H03K17/9517 , H03K2217/94021
摘要： An integrated magnetic field sensor includes a magnetic field sensing element configured to generate a magnetic field sensing element output signal in response to a magnetic field. The integrated magnetic field sensor also includes a threshold control node configured to receive a control signal from outside of the integrated magnetic field sensor, wherein the integrated magnetic field sensor is configured to provide an adjustable threshold signal in response to the control signal. The integrated magnetic field sensor also includes a comparator having a first input node coupled to receive a first signal representative of the magnetic field sensing element output signal, a second input node coupled to receive a second signal representative of the adjustable threshold signal, and an output node at which is generated an output signal responsive to the first and second signals.
摘要翻译： 集成磁场传感器包括被配置为响应于磁场产生磁场感测元件输出信号的磁场感测元件。 集成磁场传感器还包括阈值控制节点，其被配置为从集成磁场传感器的外部接收控制信号，其中集成磁场传感器被配置为响应于控制信号提供可调节的阈值信号。 集成磁场传感器还包括比较器，其具有耦合以接收代表磁场感测元件输出信号的第一信号的第一输入节点，耦合以接收表示可调阈值信号的第二信号的第二输入节点，以及输出 在该节点处产生响应于第一和第二信号的输出信号。
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公开(公告)号：US20100188078A1
公开(公告)日：2010-07-29
申请号：US12360889
申请日：2009-01-28
CPC分类号： G01R33/072 , G01R33/0005 , G01R33/0023 , G01R33/0047
摘要： A sensor that includes a magnetic flux concentrator is presented. The sensor includes a sensor integrated circuit with a structure that includes a magnetic field sensor to sense a magnetic field generated by an external magnetic flux source comprising a magnetic article. The stricture has a first surface to face the external magnetic flux source and an opposing second surface. The sensor integrated circuit also includes a lead frame connected to the structure and having a base portion with a first base portion surface to support the stricture and an opposing second base portion surface. Also provided in the sensor is a magnetic flux concentrator to concentrate magnetic flux of the magnetic field. The magnetic flux concentrator can be disposed proximate to the second base portion surface such that the structure and lead frame base portion are located between the magnetic flux concentrator and the external magnetic flux source when the sensor integrated circuit is positioned relative to the external magnetic flux source.
摘要翻译： 提出了一种包括磁通集中器的传感器。 传感器包括传感器集成电路，其结构包括磁场传感器，用于感测由包括磁性物品的外部磁通源产生的磁场。 狭缝具有面对外部磁通源的第一表面和相对的第二表面。 传感器集成电路还包括连接到结构的引线框架，并且具有带有第一基部部分表面以支撑狭缝的基部和相对的第二基部部分表面。 传感器中还设置有磁集中器，用于集中磁场的磁通量。 磁传感器集成电路可以靠近第二基部部分表面设置，使得当传感器集成电路相对于外部磁通量定位时，结构和引线框架基部位于磁通量聚集器和外部磁通源之间 。
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公开(公告)号：US07166807B2
公开(公告)日：2007-01-23
申请号：US11144970
申请日：2005-06-03
IPC分类号： H01L23/495
CPC分类号： G01R15/207 , G01R15/202 , H01L24/37 , H01L24/40 , H01L2224/37147 , H01L2224/40095 , H01L2224/40245 , H01L2224/48091 , H01L2224/4826 , H01L2224/84801 , H01L2924/01322 , H01L2924/14 , H01L2924/181 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
摘要： An integrated circuit current sensor includes a lead frame having at least two leads coupled to provide a current conductor portion, and substrate having a first surface in which is disposed one or more magnetic field transducers, with the first surface being proximate the current conductor portion and a second surface distal from the current conductor portion. In one particular embodiment, the substrate is disposed having the first surface of the substrate above the current conductor portion and the second surface of the substrate above the first surface. In this particular embodiment, the substrate is oriented upside-down in the integrated circuit relative to a conventional orientation. A current conductor portion can be deposited proximate to a surface of the substrate and proximate to the one or more magnetic field sensors. With this arrangement, a current sensor is provided for which the one or more magnetic field transducers are very close to the current conductor portion, resulting in a current sensor having improved sensitivity. An insulating layer can be disposed between the current conductor portion and the substrate.
摘要翻译： 集成电路电流传感器包括具有耦合以提供电流导体部分的至少两个引线的引线框架，以及具有第一表面的基板，其中设置有一个或多个磁场换能器，其中第一表面接近电流导体部分， 远离电流导体部分的第二表面。 在一个具体实施例中，衬底被布置成具有衬底的第一表面在电流导体部分上方，衬底的第二表面在第一表面之上。 在该特定实施例中，相对于传统的方向，衬底在集成电路中被上下颠倒。 电流导体部分可以沉积在衬底的表面附近并且靠近一个或多个磁场传感器。 利用这种布置，提供了一个电流传感器，一个或多个磁场换能器非常接近电流导体部分，导致具有改善的灵敏度的电流传感器。 绝缘层可以设置在电流导体部分和基板之间。
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