INTEGRATED ELECTRONIC DEVICE COMPRISING A TEMPERATURE SENSOR AND SENSING METHOD

    公开(公告)号:EP3076143B1

    公开(公告)日:2018-06-13

    申请号:EP15200458.6

    申请日:2015-12-16

    CPC classification number: G01K7/343 G01K7/01 G01K7/34

    Abstract: A sensing element (25) is integrated in a semiconductor material chip (60) and has a sensing diode (3), of a junction type, configured to be reverse biased so that its junction capacitance is sensitive to the local temperature. A reading stage (28) is coupled to the sensing element for detecting variations of the junction capacitance of the sensing diode and outputting a reading acquisition signal proportional to the local temperature of the sensing diode. The sensing diode (3) has a cathode terminal (K) coupled to a biasing node (2) and an anode terminal (A) coupled to a first input (7) of the sensing stage (28). The biasing node (2) receives a voltage (DRH) positive with respect to the first input (7) of the sensing stage (28) for keeping the sensing diode reverse biased.

    INTEGRATED ELECTRONIC DEVICE COMPRISING A TEMPERATURE SENSOR AND SENSING METHOD
    2.
    发明公开
    INTEGRATED ELECTRONIC DEVICE COMPRISING A TEMPERATURE SENSOR AND SENSING METHOD 有权
    INTEGRIERTE ELEKTRONISCHE VORRICHTUNG MIT TEMPERATURSENSOR UND MESSVERFAHREN

    公开(公告)号:EP3076143A1

    公开(公告)日:2016-10-05

    申请号:EP15200458.6

    申请日:2015-12-16

    CPC classification number: G01K7/343 G01K7/01 G01K7/34

    Abstract: A sensing element (25) is integrated in a semiconductor material chip (60) and has a sensing diode (3), of a junction type, configured to be reverse biased so that its junction capacitance is sensitive to the local temperature. A reading stage (28) is coupled to the sensing element for detecting variations of the junction capacitance of the sensing diode and outputting a reading acquisition signal proportional to the local temperature of the sensing diode. The sensing diode (3) has a cathode terminal (K) coupled to a biasing node (2) and an anode terminal (A) coupled to a first input (7) of the sensing stage (28). The biasing node (2) receives a voltage (DRH) positive with respect to the first input (7) of the sensing stage (28) for keeping the sensing diode reverse biased.

    Abstract translation: 感测元件(25)集成在半导体材料芯片(60)中并且具有结型的感测二极管(3),其被配置为反向偏置,使得其结电容对于局部温度敏感。 读取级(28)耦合到感测元件,用于检测感测二极管的结电容的变化,并输出与感测二极管的局部温度成比例的读取采集信号。 感测二极管(3)具有耦合到偏置节点(2)的阴极端子(K)和耦合到感测级(28)的第一输入端(7)的阳极端子(A)。 偏置节点(2)接收相对于感测级(28)的第一输入端(7)为正的电压(DRH),用于保持感测二极管反向偏置。

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