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    • 2. 发明授权
    • Pressure sensor for measuring pressure in an internal combustion engine
    • 用于测量内燃机压力的压力传感器
    • US5606117A
    • 1997-02-25
    • US358147
    • 1994-12-16
    • Manfred VogelWerner HerdenJiri MarekKurt Weiblen
    • Manfred VogelWerner HerdenJiri MarekKurt Weiblen
    • G01L9/00G01L9/06G01L23/18G01M15/00
    • G01L9/0052G01L23/18G01L9/065
    • 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.
    • 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。
    • 4. 发明授权
    • Capacitive accelerometer sensor and method for its manufacture
    • 电容式加速度传感器及其制造方法
    • US5569852A
    • 1996-10-29
    • US355760
    • 1994-12-14
    • Jiri MarekFrank BantienHorst MuenzelMichael Offenberg
    • Jiri MarekFrank BantienHorst MuenzelMichael Offenberg
    • G01P15/08G01P15/125H01L29/84
    • G01P15/125G01P15/0802G01P2015/0814
    • 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.
    • 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。
    • 5. 发明授权
    • Acceleration and vibration sensor and method of making the same
    • 加速和振动传感器及其制作方法
    • US5151763A
    • 1992-09-29
    • US631623
    • 1990-12-21
    • Jiri MarekFrank BantienDietmar HaackMartin Warth
    • Jiri MarekFrank BantienDietmar HaackMartin Warth
    • G01H11/06G01P15/08G01P15/125H01L21/822H01L27/04H01L29/84H04R19/00
    • G01P15/125G01H11/06G01P15/0802G01P2015/0814H04R19/005
    • 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.
    • 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。