Abstract: A semiconductor device with different configurations of gate structures and a method of fabricating the same are disclosed. The method includes forming a fin structure on a substrate, forming a gate opening on the fin structure, forming a metallic oxide layer within the gate opening, forming a first dielectric layer on the metallic oxide layer, forming a second dielectric layer on the first dielectric layer, forming a work function metal (WFM) layer on the second dielectric layer, and forming a gate metal fill layer on the WFM layer. The forming the first dielectric layer includes depositing an oxide material with an oxygen areal density less than an oxygen areal density of the metallic oxide layer.

Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a first source/drain epitaxial feature formed over a substrate, a second source/drain epitaxial feature formed over the substrate, two or more semiconductor layers disposed between the first source/drain epitaxial feature and the second source/drain epitaxial feature, a gate electrode layer surrounding a portion of one of the two or more semiconductor layers, a first dielectric region disposed in the substrate and in contact with a first side of the first source/drain epitaxial feature, and a second dielectric region disposed in the substrate and in contact with a first side of the second source/drain epitaxial feature, the second dielectric region being separated from the first dielectric region by a substrate.

Abstract: A smart chair includes a seat and a power supply device installed to the seat. The power supply device is electrically coupled to a voltage detection unit and a voltage adjustment unit. The voltage detection unit is provided for detecting a load signal, and the voltage adjustment unit is provided for adjusting and outputting a DC voltage according to the load signal. The concepts of resting, leisure and business are combined to provide a chair capable of detecting and outputting an appropriate DC voltage automatically.

Abstract: A smart chair includes a seat and a power supply device installed to the seat. The power supply device is electrically coupled to a voltage detection unit and a voltage adjustment unit. The voltage detection unit is provided for detecting a load signal, and the voltage adjustment unit is provided for adjusting and outputting a DC voltage according to the load signal. The concepts of resting, leisure and business are combined to provide a chair capable of detecting and outputting an appropriate DC voltage automatically.

Abstract: A smart desk includes a desk body and at least one desk leg. The desk body includes a desktop and a DC power supply installed on the desk body. In addition, the DC power supply includes a voltage adjustment unit connected thereto in order to adjust an output DC voltage value depending upon the needs. The desk leg is attached onto the bottom surface of the desk body for supporting thereof. Accordingly, the smart desk is able to provide the functions of reading, office working, item storage, and providing a DC power source.

Abstract: The present invention discloses a multi-phase switching regulator and a control method thereof. The multi-phase switching regulator includes plural power stage circuits, wherein at least one power stage circuit is enabled or disabled according to a phase adding/shedding signal; at least one zero current detection circuit, which is coupled to one of the power stage circuit, for generating a trigger signal according to an inductor current in a corresponding one of the power stage circuits, a zero current reference signal, and an average reference signal; and a phase control circuit controlling the phase adding/shedding operation according to the trigger signal.

Abstract: A voltage regulator controller is disclosed including: a reference voltage generator for generating a reference voltage; a comparison circuit, coupled with the reference voltage generator, for comparing the reference voltage with an output voltage of a voltage regulator; and a control circuit, coupled with the reference voltage generator and the comparison circuit, for controlling the reference voltage generator to stepwise lower the reference voltage when a power saving command is received by the voltage regulator controller.

Abstract: For thermal compensation for an intrinsic element in a system, a circuit and method are proposed to predict the temperature variation caused by power loss of the intrinsic element, in addition to sense the external environment temperature variation of the intrinsic element, and thus sense the operational temperature of the intrinsic element more precisely.

Abstract: The present invention discloses a voltage regulator, and a control circuit and a control method therefor. The method for controlling a voltage regulator comprises: receiving a dynamic voltage identification signal which instructs the voltage regulator to change its output voltage to a target voltage, and generating a compensation signal to shorten an interval for the output voltage of the voltage regulator to reach the target voltage.

Abstract: For thermal compensation for an intrinsic element in a system, a circuit and method are proposed to predict the temperature variation caused by power loss of the intrinsic element, in addition to sense the external environment temperature variation of the intrinsic element, and thus sense the operational temperature of the intrinsic element more precisely.

Abstract: The present invention discloses a multi-phase switching regulator, a driver circuit of a multi-phase switching regulator, and a control method of a multi-phase switching regulator. The multi-phase switching regulator includes: at least two power stages, switching power transistors in the power stages to convert an input voltage to an output voltage according to pulse width modulation (PWM) signals generated by corresponding PWM controllers respectively; and a current balance circuit, generating a current balance signal according to the current of the corresponding power stage and a phase adjustment signal to averagely distribute current over the active power stages. In the present invention, the gain of the current balance circuit is adjustable, to avoid or reduce output voltage overshoot and undershoot when the phase number changes, while the current balance function is still achieved in normal operation.

Abstract: For thermal compensation for an intrinsic element in a system, a circuit and method are proposed to predict the temperature variation caused by power loss of the intrinsic element, in addition to sense the external environment temperature variation of the intrinsic element, and thus sense the operational temperature of the intrinsic element more precisely.

Abstract: A voltage regulator controller is disclosed including: a reference voltage generator for generating a reference voltage; a comparison circuit, coupled with the reference voltage generator, for comparing the reference voltage with an output voltage of a voltage regulator; and a control circuit, coupled with the reference voltage generator and the comparison circuit, for controlling the reference voltage generator to stepwise lower the reference voltage when a power saving command is received by the voltage regulator controller.

Abstract: A multi-phase power converter with constant on-time control includes a plurality of channels to convert an input voltage into an output voltage, and each of the channels is driven by a control signal. When all channel currents of the channels are balanced, each of the control signals remains a constant on-time. When the channel currents are imbalanced, the on-times of the control signals are modulated according to the difference between each channel current and a target value for current balance between the channels.

Abstract: For thermal compensation for an intrinsic element in a system, a circuit and method are proposed to predict the temperature variation caused by power loss of the intrinsic element, in addition to sense the external environment temperature variation of the intrinsic element, and thus sense the operational temperature of the intrinsic element more precisely.

Abstract: The present invention discloses a multi-phase switching regulator, a driver circuit of a multi-phase switching regulator, and a control method of a multi-phase switching regulator. The multi-phase switching regulator includes: at least two power stages, switching power transistors in the power stages to convert an input voltage to an output voltage according to pulse width modulation (PWM) signals generated by corresponding PWM controllers respectively; and a current balance circuit, generating a current balance signal according to the current of the corresponding power stage and a phase adjustment signal to averagely distribute current over the active power stages. In the present invention, the gain of the current balance circuit is adjustable, to avoid or reduce output voltage overshoot and undershoot when the phase number changes, while the current balance function is still achieved in normal operation.

Abstract: A circuit and method are proposed for constant on-time control for an interleaved multiphase voltage regulator, which monitor the channel currents of all the channels of the interleaved multiphase voltage regulator to select one from the channels to drive and so achieve interleaved phase operation.

Abstract: The present invention discloses a voltage regulator, and a control circuit and a control method therefor. The method for controlling a voltage regulator comprises: receiving a dynamic voltage identification signal which instructs the voltage regulator to change its output voltage to a target voltage, and generating a compensation signal to shorten an interval for the output voltage of the voltage regulator to reach the target voltage.

Abstract: A circuit and method are proposed for constant on-time control for an interleaved multiphase voltage regulator, which monitor the channel currents of all the channels of the interleaved multiphase voltage regulator to select one from the channels to drive and so achieve interleaved phase operation.

Abstract: A control circuit provides a control signal for a constant on-time PWM switching converter to produce an output voltage, such that the converter operates with a constant on-time at a first state and operates with a variable on-time at a second state, so as to decrease the switching frequency and thereby the switching loss, to increase the efficiency of the converter, to improve the transient response, and to reduce the recovery time of the output voltage.