Silicon chip for use in a force-detection sensor
    1.
    发明授权
    Silicon chip for use in a force-detection sensor 失效
    用于力检测传感器的硅芯片

    公开(公告)号:US5600074A

    公开(公告)日:1997-02-04

    申请号:US240740

    申请日:1994-05-10

    摘要: A force sensor employing a silicon chip having a force application area on a top surface and attached to a support at a bottom surface. Piezoresistive elements are arranged on the silicon chip in areas of high mechanical tension and produce signals. Circuits, which receive the signals produced by the piezoresistive elements, are arranged on the silicon chip in areas of low mechanical tension. The areas of mechanical tension may be influenced by providing grooves and/or recesses in the bottom surface of the silicon chip and by providing grooves in the top surface of the silicon chip.

    摘要翻译: PCT No.PCT / DE92 / 00870 Sec。 371日期1994年5月10日 102(e)日期1994年5月10日PCT提交1992年10月16日PCT公布。 出版物WO93 / 10430 日期:1993年5月27日一种力传感器,其采用具有在上表面上的施力区域的硅芯片并且附接到底表面上的支撑件。 压敏元件在高度机械张力的区域被布置在硅芯片上并产生信号。 接收由压阻元件产生的信号的电路在低机械张力的区域中布置在硅芯片上。 可能通过在硅芯片的底表面中提供槽和/或凹槽并且通过在硅芯片的顶表面中提供凹槽来影响机械张力的区域。

    Pressure sensor for measuring pressure in an internal combustion engine
    2.
    发明授权
    Pressure sensor for measuring pressure in an internal combustion engine 失效
    用于测量内燃机压力的压力传感器

    公开(公告)号:US5606117A

    公开(公告)日:1997-02-25

    申请号:US358147

    申请日:1994-12-16

    摘要: The pressure sensor for a combustion chamber includes a housing; a membrane closing the housing on its combustion chamber side; a monocrystalline silicon chip inside the housing and including a sensor circuit device provided with a bridge circuit device including a piezoresistor producing an electrical signal in response to applied pressure and a plunger positioned between the membrane and the silicon chip to transmit a pressure in the combustion chamber to the piezoresistor. The bridge circuit device is connected to an amplifier circuit located on the silicon chip. The amplifier circuit includes amplifier resistors having resistance values determinative of the offset of the signal and sensor sensitivity. A network circuit for offset and sensitivity adjustments is provided on the silicon chip and includes four adjusting circuits for offset, sensor sensitivity, temperature compensation of offset and for temperature compensation of sensor sensitivity. Each adjusting circuit includes parallel-connected adjusting circuit branches each including an adjusting resistor and a semiconductor element in series. The adjusting circuit branches of respective adjusting circuits are connected in parallel with respective amplifier resistors. A logic circuit also provided on the silicon chip is used to make predetermined semiconductor elements electrically conductive so that predetermined adjusting circuit branches can be made conductive with a resistance determined by the adjusting resistors in the predetermined adjusting circuit branches to make the respective adjustments.

    摘要翻译: 用于燃烧室的压力传感器包括壳体; 在其燃烧室侧封闭壳体的膜; 壳体内的单晶硅芯片,并且包括设置有桥接电路装置的传感器电路装置,所述桥式电路装置包括响应于施加的压力产生电信号的压电电感器和位于膜和硅芯片之间的柱塞,以在燃烧室中传递压力 到压敏电阻。 桥接电路器件连接到位于硅芯片上的放大器电路。 放大器电路包括具有确定信号偏移和传感器灵敏度的电阻值的放大器电阻。 在硅芯片上提供了一种用于偏移和灵敏度调整的网络电路,包括用于偏移,传感器灵敏度,偏移温度补偿和传感器灵敏度温度补偿的四个调节电路。 每个调节电路包括并联连接的调节电路分支,每个调节电路分别包括调节电阻器和串联的半导体元件。 各调节电路的调整电路分支与各放大电阻并联连接。 还使用在硅芯片上设置的逻辑电路来使预定的半导体元件导电,使得预定的调节电路分支可以由预定调整电路分支中的调节电阻器确定的电阻导通,以进行相应的调整。

    Capacitive accelerometer sensor and method for its manufacture
    4.
    发明授权
    Capacitive accelerometer sensor and method for its manufacture 失效
    电容式加速度传感器及其制造方法

    公开(公告)号:US5569852A

    公开(公告)日:1996-10-29

    申请号:US355760

    申请日:1994-12-14

    摘要: A contacting of a capacitive accelerometer sensor of monocrystalline material is achieved by a capacitive accelerometer sensor having a structure etched out of a monocrystalline layer arranged on a substrate, including a seismic mass that is only joined to the substrate by suspension segments and executing a movement in its longitudinal direction in response to the occurrence of an acceleration of parallel, plate-like first fingers extending out from this mass at right angles to their longitudinal direction and of plate-like second fingers running parallel to the first fingers and anchored to the substrate. The first and second fingers form a capacitor arrangement. The suspension segments, which are anchored with their end region that is distant from the seismic mass to the substrate, and second fingers are electrically isolated, by an isolation strip, from the other remaining layer of monocrystalline material. A passivation layer extends over the isolation strip, and at least partially over the remaining layer. Conductors arranged on the passivation layer and serving as connecting leads for the capacitor arrangement extend across the isolation strip up to the connections of the capacitor arrangement, and are contacted there.

    摘要翻译: 单晶材料的电容式加速度计传感器的接触是通过电容式加速度计传感器实现的,该传感器具有从布置在基底上的单晶层中蚀刻出的结构,包括仅通过悬挂段连接到基底的地震质量块, 其纵向方向响应于从该质量块与其纵向方向成直角地延伸的平行的板状第一指状物的加速度以及平行于第一指状物并且锚固到基底的板状第二指状物的加速度。 第一和第二指形成电容器布置。 将其远离地震质体的端部区域锚定到基底的悬挂段和第二指状物通过隔离带与另一个剩余的单晶材料层电隔离。 钝化层在隔离带上延伸,并且至少部分地覆盖剩余层。 布置在钝化层上并且用作电容器布置的连接引线的导体跨过隔离带延伸直到电容器装置的连接,并且在那里接触。

    Acceleration and vibration sensor and method of making the same
    5.
    发明授权
    Acceleration and vibration sensor and method of making the same 失效
    加速和振动传感器及其制作方法

    公开(公告)号:US5151763A

    公开(公告)日:1992-09-29

    申请号:US631623

    申请日:1990-12-21

    摘要: A semiconductor plate having an epitaxial layer of a conductivity type opposite to that of the substrate on which it is formed has a depression, including one or more elongate channels. The depression is etched into a depth passing entirely through the epitaxial layer to isolate at least one tongue extending from a tongue pedestal into the etched depression and having parallel major sides which are perpendicular to the principal planes of the semiconductor plate. The tongue is under-etched so that it will be free to vibrate by motion in directions parallel to the principal planes of the plate. One of the major sides of the tongue faces a stationary electrode across a gap and the electrode and the tongue are insulated from each other, at least in one embodiment, by the fact that the etched depression extends all the way through the epitaxial layer in its depth. Deflection or vibration of the tongue changes the capacitance between the electrode and the tongue and contacts are provided for measuring the capacitance. Various embodiments utilizing multiple tongues and one or more electrodes are shown.

    摘要翻译: 具有与形成有外延层的基板的导电类型相反的外延层的半导体板具有包括一个或多个细长沟道的凹陷部。 将凹陷蚀刻到完全穿过外延层的深度中,以将至少一个从舌基座延伸的舌片隔离成蚀刻的凹陷部,并且具有垂直于半导体板的主平面的平行的主边。 舌头被低蚀刻,使得它可以通过平行于板的主平面的方向的运动而自由振动。 至少在一个实施例中,舌片的主要侧面之一跨越间隙固定电极,并且电极和舌片彼此绝缘,因为蚀刻的凹陷一直延伸穿过外延层的事实 深度。 舌头的偏转或振动会改变电极和舌头之间的电容,并提供触点用于测量电容。 示出了利用多个舌片和一个或多个电极的各种实施例。

    Mass flow sensor with rupture detection
    10.
    发明授权
    Mass flow sensor with rupture detection 失效
    质量流量传感器具有破裂检测

    公开(公告)号:US06192749B1

    公开(公告)日:2001-02-27

    申请号:US09132863

    申请日:1998-08-12

    IPC分类号: G01F168

    CPC分类号: G01F1/6845 G01F25/0007

    摘要: A mass flow sensor having a thin substrate and a resistor element arranged on the thin substrate. The thin substrate is stretched on a fixed substrate. In a stretched area, at which, in response to mechanical loading of the thin substrate, the mechanical stresses concentrate, a resistor element for detecting ruptures is arranged. As a result of a rupture in the stretched area, this rupture-detection resistor is interrupted, and the rupture can be confirmed due to the sudden increase in the resistance of the resistor, caused thereby.

    摘要翻译: 一种质量流量传感器,其具有薄的衬底和布置在薄衬底上的电阻器元件。 将薄衬底在固定衬底上拉伸。 在拉伸区域中,响应于薄基板的机械负载,机械应力集中,设置用于检测断裂的电阻元件。 由于拉伸区域的断裂,该断裂检测电阻器被中断,由此引起的电阻器的电阻突然上升,可以确认断裂。