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    • 3. 发明申请
    • ON-CHIP CAPACITORS WITH A VARIABLE CAPACITANCE FOR A RADIOFREQUENCY INTEGRATED CIRCUIT
    • 具有适用于无线电综合电路的可变电容的片上电容器
    • US20100237468A1
    • 2010-09-23
    • US12552317
    • 2009-09-02
    • Douglas M. DaleyMete ErturkEdward J. Gordon
    • Douglas M. DaleyMete ErturkEdward J. Gordon
    • H01L29/93G06F17/50H01L21/329
    • H01G7/00G06F17/5054H01L23/5223H01L28/60H01L2924/0002H01L2924/3011H01L2924/00
    • On-chip capacitors with a variable capacitance, as well as design structures for a radio frequency integrated circuit, and method of fabricating and method of tuning on-chip capacitors. The on-chip capacitor includes first and second ports powered with opposite polarities, first and second electrodes, and first and second voltage-controlled units. Each of the first and second voltage-controlled units is switched between a first state in which the first and second electrodes are electrically isolated from the first and second ports and a second state. When the first voltage-controlled unit is switched to the second state, the first electrode is electrically connected with the first port. When the second voltage-controlled unit is switched to the second state the second electrode is electrically connected with the second port. The on-chip capacitor has a larger capacitance value when the first and second voltage-controlled units are in the second state.
    • 具有可变电容的片上电容器,以及用于射频集成电路的设计结构,以及制造方法和片上电容器的调谐方法。 片上电容器包括由相反极性供电的第一和第二端口,第一和第二电极以及第一和第二电压控制单元。 第一和第二压控单元中的每一个在第一和第二电极与第一和第二端口电隔离的第一状态和第二状态之间切换。 当第一电压控制单元切换到第二状态时,第一电极与第一端口电连接。 当第二电压控制单元切换到第二状态时,第二电极与第二端口电连接。 当第一和第二电压控制单元处于第二状态时,片上电容器具有较大的电容值。