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    • 3. 发明申请
    • ACCELERATION MEASURING MICROMECHANICAL SENSOR ELEMENT AND METHOD FOR THE PRODUCTION THEREOF
    • 微机械传感器元件FOR MEASURING MAKING的加速度和方法
    • WO2006081888A3
    • 2006-10-19
    • PCT/EP2005056525
    • 2005-12-06
    • BOSCH GMBH ROBERTBENZEL HUBERTSCHAEFER FRANKLAMMEL GERHARD
    • BENZEL HUBERTSCHAEFER FRANKLAMMEL GERHARD
    • B81B7/02B81B3/00
    • B81B7/02B81B2201/0235B81B2201/0264B81B2203/0127B81B2203/0315
    • The invention relates to an acceleration measuring micromechanical sensor element (4) and to a method for the production thereof, wherein said sensor element comprises at least one substrate (5), a membrane (10) which is formed thereon and under which a cavity (12) is formed, an opening (25) is embodied in the membrane (10) in such a way that it extends to the cavity (12), an acceleration mass is formed on or in the membrane (10), preferably in the form of a solder bump (22) and a piezo resistor (14) formed on the membrane (10) for measuring at least one displacement thereof. In addition, a pressure sensor provided with a corresponding membrane, cavity and piezo resistor is embodied on the substrate, thereby making it possible to produced a combined acceleration and pressure sensor, preferably also an evaluation circuit, in a cost saving manner on a chip which can be afterwards fixed to a mounting substrate according to a in flip-chip-technique.
    • 本发明涉及一种微机械传感器元件(4),用于测量的加速度,以及用于制造这种传感器元件的方法,所述传感器元件(4)至少包括:一个基板(5)形成一个在所述基板(5)膜(10), 下面的(12)形成的一个(12)在膜(10)的开口(25),其延伸到所述空腔形成的一个空腔形成在或在膜的质量(10)的加速度,优选为焊料凸块( 压电电阻器形成22),和一个(在振动板10)(14),以测量至少在隔膜(10)的偏转。 在基板上,一个压力传感器可以进一步与合适的膜腔和压电电阻形成,使得组合的加速度和压力传感器,并且优选地还评估电路,可以廉价地在一个芯片上形成,在安装基板上的倒装芯片技术以下 可以连接。