High voltage cascode HEMT device
    13.
    发明授权

    公开(公告)号:US11139290B2

    公开(公告)日:2021-10-05

    申请号:US16534259

    申请日:2019-08-07

    Abstract: The present disclosure relates to a semiconductor device including a first high electron mobility transistor (HEMT) device disposed within a semiconductor structure and having a first source, a first drain, and a first gate; a second HEMT device disposed within the semiconductor structure and having a second source, a second drain, and a second gate, the second source coupled to the first drain; and a diode-connected transistor device disposed within the semiconductor structure and comprising a third source, a third gate, and a third drain, the third drain coupled to the second gate.

    SERIES RESISTOR OVER DRAIN REGION IN HIGH VOLTAGE DEVICE

    公开(公告)号:US20200043912A1

    公开(公告)日:2020-02-06

    申请号:US16584795

    申请日:2019-09-26

    Abstract: Some embodiments relate to a method. In the method, a semiconductor substrate is provided. Dopant impurities of a first dopant conductivity are implanted into the semiconductor substrate to form a body region. A gate dielectric and a field oxide region are formed over the semiconductor substrate. A polysilicon layer is formed over the gate dielectric and field oxide region. The polysilicon layer is patterned to concurrently form a conductive gate electrode over the gate dielectric and a resistor structure over the field oxide region. The resistor structure is perimeterally bounded by an inner edge of the conductive gate electrode. Dopant impurities of a second dopant conductivity, which is opposite the first dopant conductivity, are implanted into the semiconductor substrate to form a source region and a drain region. The drain region is perimeterally bounded by the inner edge of the conductive gate electrode.

    SERIES RESISTOR OVER DRAIN REGION IN HIGH VOLTAGE DEVICE

    公开(公告)号:US20200027874A1

    公开(公告)日:2020-01-23

    申请号:US16584773

    申请日:2019-09-26

    Abstract: Some embodiments relate to an integrated circuit. The integrated circuit includes a ring-shaped drain region having an inner edge and an outer edge. A channel region surrounds the ring-shaped drain region. A source region surrounds the channel region. The channel region separates the drain region from the source region. A gate electrode is arranged over the channel region and is separated from the channel region by a gate dielectric. An inner edge of the gate electrode is proximate to the drain region. A resistor structure is arranged over and spaced apart from an upper surface of the substrate. The resistor structure has a first end and a second end which are connected by a curved or polygonal path of resistive material. The first end is coupled to the ring-shaped drain. The resistor has an outer perimeter that is surrounded by the inner edge of the ring-shaped drain region.

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