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    • 7. 发明授权
    • Integrated circuit having capacitive elements
    • 具有电容元件的集成电路
    • US06465868B1
    • 2002-10-15
    • US09640150
    • 2000-08-16
    • Thomas EhbenThomas SteineckeJens Rosenbusch
    • Thomas EhbenThomas SteineckeJens Rosenbusch
    • H01L27108
    • H01L23/5223H01L23/5222H01L23/66H01L27/0805H01L2924/0002H01L2924/3011H01L2924/00
    • An integrated circuit having capacitive elements for smoothing a supply voltage is described. In this case, at least one additional metal electrode, which is configured as a high frequency-optimized capacitance and is distinguished by an extremely low sheet resistance, is connected in parallel with the MOS capacitances. By connecting the areally highly effective MOS capacitance, which, however, is connected with a somewhat higher impedance, in parallel with areally less effective metal capacitances, which, however, are connected to the supply voltage in a very low-impedance manner, it is possible to obtain broadband buffering and thus decoupling of high-frequency interference signals. Very high-frequency interference components are attenuated on the chip and do not pass into the system surrounding the integrated circuit.
    • 描述了具有用于平滑电源电压的电容元件的集成电路。 在这种情况下,配置为高频优化电容并且被极低的薄层电阻区分的至少一个附加金属电极与MOS电容并联连接。 然而,通过连接非常有效的MOS电容,该MOS电容与稍高阻抗连接,与以非常低阻抗的方式连接到电源电压的非常不太有效的金属电容并联。 可能获得宽带缓冲,从而解耦高频干扰信号。 非常高频的干扰元件在芯片上衰减,不会进入集成电路周围的系统。