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    • 4. 发明申请
    • TUNABLE CAPACITOR
    • TUNABLE电容器
    • WO2009136320A1
    • 2009-11-12
    • PCT/IB2009/051740
    • 2009-04-29
    • NXP B.V.FURUKAWA, YukikoREIMANN, KlausJEDEMA, Friso JacobusTIGGELMAN, Markus Petrus JosephusROEST, Aarnoud Laurens
    • FURUKAWA, YukikoREIMANN, KlausJEDEMA, Friso JacobusTIGGELMAN, Markus Petrus JosephusROEST, Aarnoud Laurens
    • H01G7/04
    • H01G7/04
    • The invention relates to electronic device having an operation temperature range, wherein the electronic device comprises a tunable capacitor (CST) comprising a first electrode (BE), a second electrode (TE), and a dielectric (FEL) arranged between the first electrode (BE) and the second electrode (TE). The dielectric (FEL) comprises dielectric material (FEL) having a value of a relative dielectric constant (ε r ) varying at least within the operation temperature range. The electronic device further comprises a temperature varying means (RES) being thermally coupled to the tunable capacitor for providing a temperature of the dielectric (FEL) causing a predetermined capacitance of the tunable capacitor (CST). The invention, which relies on the idea of varying temperature to vary a capacitance of a capacitor stack, provides an alternative tunable capacitor type for the known types. Advantageous embodiments feature high-tuning ratio, small device area, and stable capacitance value in case the temperature is well controlled. The invention further relates to a semiconductor device comprising the electronic device in accordance with the invention, to an electronic circuit comprising such electronic device, and to a method of manufacturing such electronic device.
    • 本发明涉及具有操作温度范围的电子设备,其中电子设备包括可调谐电容器(CST),该可调谐电容器(CST)包括第一电极(BE),第二电极(TE)和电介质(FEL) BE)和第二电极(TE)。 电介质(FEL)包括具有至少在操作温度范围内变化的相对介电常数(呃)值的电介质材料(FEL)。 电子设备还包括热耦合到可调电容器的温度变化装置(RES),用于提供导致可调谐电容器(CST)的预定电容的电介质的温度(FEL)。 依靠改变温度来改变电容器堆叠的电容的想法的本发明为已知类型提供了替代的可调谐电容器类型。 有利的实施例在温度受到良好控制的情况下具有高调节率,小的器件面积和稳定的电容值。 本发明还涉及包括根据本发明的电子设备的半导体器件,包括这种电子器件的电子电路以及制造这种电子器件的方法。