Generating and exploiting an asymmetric capacitance hysteresis of ferroelectric MIM capacitors
    51.
    发明授权
    Generating and exploiting an asymmetric capacitance hysteresis of ferroelectric MIM capacitors 有权
    产生和利用铁电MIM电容器的非对称电容滞后

    公开(公告)号:US08531862B2

    公开(公告)日:2013-09-10

    申请号:US13125822

    申请日:2009-10-24

    IPC分类号: G11C11/22 H02H3/22 H03B5/20

    摘要: The present invention relates to an electric component comprising at least one first MIM capacitor having a ferroelectric insulator with a dielectric constant of at least 100 between a first capacitor electrode of a first electrode material and a second capacitor electrode of a second electrode material. The first and second electrode materials are selected such that the first MIM capacitor exhibits, as a function of a DC voltage applicable between the first and second electrodes, an asymmetric capacitance hysteresis that lets the first MIM capacitor, in absence of the DC voltage, assume one of at least two possible distinct capacitance values, in dependence on a polarity of a switching voltage last applied to the capacitor, the switching voltage having an amount larger than a threshold-voltage amount. The invention is applicable for ESD sensors, memories and high-frequency devices.

    摘要翻译: 本发明涉及一种电气部件,包括至少一个第一MIM电容器,其具有在第一电极材料的第一电容器电极和第二电极材料的第二电容器电极之间具有至少100的介电常数的铁电绝缘体。 选择第一和第二电极材料,使得第一MIM电容器作为可应用于第一和第二电极之间的DC电压的函数表现出不对称电容滞后,其使第一MIM电容器在没有DC电压的情况下呈现 根据最后施加到电容器的开关电压的极性,开关电压具有大于阈值电压量的量的至少两个可能的不同电容值中的一个。 本发明适用于ESD传感器,存储器和高频器件。

    THIN FILM ULTRASOUND TRANSDUCER
    52.
    发明申请
    THIN FILM ULTRASOUND TRANSDUCER 有权
    薄膜超声波传感器

    公开(公告)号:US20130208572A1

    公开(公告)日:2013-08-15

    申请号:US13812640

    申请日:2011-07-12

    IPC分类号: B06B1/06

    摘要: The present invention relates to a transducer (11) comprising—a membrane (31) configured to change shape in response to a force, the membrane (31) having a first major surface (16) and a second major surface (17),—a piezoelectric layer (18) formed over the first major surface (16) of the membrane (31), the piezoelectric layer (18) having an active portion,—first and second electrodes (19) in contact with the piezoelectric layer (18), wherein an electric field between the first and second electrodes (19) determines the mechanical movement of the piezoelectric layer (18),—support structures (40) at the second major surface (17) of the membrane (15) on adjacent sides of the active portion of the piezoelectric layer (18), at least part of the support structures (40) forming walls perpendicular, or at least not parallel, to the second major surface (17) of the membrane (31), so as to form a trench (41) of any shape underlying the active portion, so that an ultrasound transducer is obtained with a high output pressure at the support side than at the opposite side. The invention also relates to a method of forming such a transducer, and an array comprising at least one transducer of the like.

    摘要翻译: 本发明涉及一种换能器(11),其包括 - 被配置为响应于力而改变形状的膜(31),所述膜(31)具有第一主表面(16)和第二主表面(17), - 形成在膜(31)的第一主表面(16)上方的压电层(18),压电层(18)具有有源部分,与压电层(18)接触的第一和第二电极(19) ,其中所述第一和第二电极(19)之间的电场确定所述压电层(18)的机械运动, - 在膜(15)的相邻侧上的第二主表面(17)处的支撑结构(40) 压电层(18)的有效部分,至少部分支撑结构(40)形成与膜(31)的第二主表面(17)垂直或至少不平行的壁,以便形成 在活动部分下方具有任何形状的沟槽(41),从而获得超声换能器 在支撑侧具有高于相对侧的高输出压力。 本发明还涉及一种形成这种换能器的方法,以及包括至少一个这样的换能器的阵列。

    COLLISION AVOIDANCE AND DETECTION USING DISTANCE SENSORS
    53.
    发明申请
    COLLISION AVOIDANCE AND DETECTION USING DISTANCE SENSORS 审中-公开
    使用距离传感器的碰撞避免和检测

    公开(公告)号:US20120209069A1

    公开(公告)日:2012-08-16

    申请号:US13502412

    申请日:2010-10-04

    IPC分类号: A61B1/00 A61B1/04

    摘要: An endoscopic method involves an advancement of an endoscope (20) as controlled by an endoscopic robot (31) to a target location within an anatomical region of a body, and a generation of a plurality of monocular endoscopic images (80) of the anatomical region as the endoscope (20) is advanced to the target location by the endoscopic robot (31). For avoiding or detecting a collision of the endoscope (20) with and object within monocular endoscopic images (80) (e.g., a ligament within monocular endoscopic images of a knee), the method further involves a generation of distance measurements of the endoscope (20) from the object as the endoscope (20) is advanced to the target location by the endoscopic robot (31), and a reconstruction of a three-dimensional image of a surface of the object within the monocular endoscopic images (80) as a function of the distance measurements (81).

    摘要翻译: 内窥镜方法包括将内窥镜机器人(31)控制的内窥镜(20)推进到身体的解剖区域内的目标位置,以及生成解剖区域的多个单目内窥镜图像(80) 当内窥镜(20)通过内窥镜机器人(31)前进到目标位置时。 为了避免或检测内窥镜(20)与单眼内窥镜图像(80)(例如膝盖的单眼内窥镜图像内的韧带)的对象的碰撞,该方法还包括生成内窥镜(20)的距离测量 )由内窥镜(20)通过内窥镜机器人(31)前进到目标位置,并且将单眼内窥镜图像(80)内的物体的表面的三维图像重建为功能 的距离测量(81)。

    POSITION DETERMINING SYSTEM
    56.
    发明申请
    POSITION DETERMINING SYSTEM 审中-公开
    位置决定系统

    公开(公告)号:US20120085934A1

    公开(公告)日:2012-04-12

    申请号:US13378068

    申请日:2010-06-17

    IPC分类号: G01N23/00 G01S15/06 G01N21/00

    摘要: The invention relates to position determining system (201) for determining a position of an object (2). A first position detection unit (205) detects a first position of the object (2) based on radiation transferred between the object (2) and transfer positions being known relative to a reference position by a sending and receiving unit (203, 214, 216, 217). A second position detection unit (35) detects a second position based on an acceleration of the object (2) and the determined first position, wherein an output unit (12) outputs at least one of the first position and the second position. If the transfer of radiation is interrupted, the second position can be output by the output unit. Moreover, the first position can be used as an initial value for determining the second position or to update the second position. This improves the quality of determining the position of the object.

    摘要翻译: 本发明涉及一种用于确定物体(2)的位置的位置确定系统(201)。 第一位置检测单元(205)基于通过发送和接收单元(203,214,216)在对象(2)和相对于参考位置已知的传送位置之间传送的辐射来检测对象(2)的第一位置 ,217)。 第二位置检测单元(35)基于物体(2)的加速度和确定的第一位置来检测第二位置,其中输出单元(12)输出第一位置和第二位置中的至少一个。 如果辐射传输中断,则第二位置可以由输出单元输出。 此外,第一位置可以用作用于确定第二位置的初始值或者更新第二位置。 这提高了确定对象位置的质量。