Abstract:
A nitride based semiconductor device includes a first metallic junction layer, a Schottky junction layer on the first metallic junction layer, a first group III nitride semiconductor layer on the Schottky junction layer, a first insulating pattern layer on the first group III nitride semiconductor layer, the first insulating layer pattern including curved protrusions, a second group III nitride semiconductor layer laterally grown on the first group III nitride semiconductor layer, a first type group III nitride semiconductor layer on the second group III nitride semiconductor layer, the first type group III nitride semiconductor layer being simultaneously doped with aluminum (Al) and silicon (Si), an ohmic junction layer formed on the first type group III nitride semiconductor layer, a second metallic junction layer on the ohmic junction layer, and a metallic supporting substrate on the second metallic junction layer.
Abstract:
An analog-to-digital converter (ADC) includes a first comparator configured to generate a first comparison signal on a basis of a first asynchronous clock signal generated from a sampling clock signal, and a second comparator configured to generate a second comparison signal on a basis of a second asynchronous clock signal generated by a first comparison operation completion signal. The ADC includes a first control logic configured to output a first control signal on a basis of the first comparison signal and a second control logic configured to output a second control signal on a basis of the second comparison signal. The ADC includes a first reference signal adjusting circuit configured to adjust a first reference signal on a basis of the first control signal and a second reference signal adjusting circuit configured to adjust a second reference signal on a basis of the second control signal.
Abstract:
An amplifier and an electronic system including the same are provided. An amplifier includes a first NMOS transistor configured to receive a first input, a second NMOS transistor configured to receive a second input, the second NMOS transistor including a source connected to a source of the first NMOS transistor, a first resistor including a first end connected to a drain of the first NMOS transistor and a second end connected to a first output, a second resistor including a first end connected to a drain of the second NMOS transistor, and a second end connected to a second output, and the amplifier is configured to generate the first output and the second output based on the first input, the second input, a resistance value of the first resistor, and a resistance value of the second resistor.
Abstract:
A semiconductor may include a semiconductor substrate including a first region and a second region disposed at opposite sides of the first region, a first trench formed in the first region, a buffer layer filling a portion of the first trench, a first semiconductor layer formed on the buffer layer, a second semiconductor layer forming a hetero-junction with the first semiconductor layer on the first semiconductor layer of the first region and a gate electrode formed on the second semiconductor layer of the first region.
Abstract:
An amplifying module having one input terminal and one output terminal and passing an antenna signal input through the input terminal towards the output terminal. The amplifying module includes a first switch connected to the input terminal, a plurality of filters selectable by the first switch, a plurality of amplifiers respectively connected to the plurality of filters and amplifying a signal that has passed through the filters, and a second switch for connecting the amplified signal to the output terminal.
Abstract:
A semiconductor device may include: a first semiconductor layer having a first band gap; a second semiconductor layer including first and second regions separately disposed on an upper surface of the first semiconductor layer and having a second band gap wider than the first band gap; and a third semiconductor layer disposed between the first and second regions of the second semiconductor layer, extending up to at least a portion of the first semiconductor layer. The third semiconductor layer may have a channel region doped with an impurity.
Abstract:
In a nitride-based semiconductor device, an undoped gallium nitride (GaN) layer is formed on an aluminum gallium nitride (AlGaN) layer, and a silicon carbon nitride (SixC1-xN) functional layer is formed on the undoped GaN layer.
Abstract:
A semiconductor may include a semiconductor substrate including a first region and a second region disposed at opposite sides of the first region, a first trench formed in the first region, a buffer layer filling a portion of the first trench, a first semiconductor layer formed on the buffer layer, a second semiconductor layer forming a hetero-junction with the first semiconductor layer on the first semiconductor layer of the first region and a gate electrode formed on the second semiconductor layer of the first region.
Abstract:
Provided are a semiconductor device and an operating method thereof. The semiconductor device includes a mode controller configured to output a first control signal in a first communication mode, and output a second control signal in a second communication mode which is different from the first communication mode; and a configurable circuit configured to generate a first output signal to be transmitted to a first type analog-to-digital converter (ADC) in the first communication mode, and generate a second output signal using a second type ADC in the second communication mode, wherein the configurable circuit comprises a switching circuit configured to change a circuit configuration to a first circuit configuration for generating a first output signal in the first communication mode or to a second circuit configuration for generating a second output signal in the second communication mode, depending on the first control signal or the second control signal received from the mode controller.