Abstract: A semiconductor device with dual side source/drain (S/D) contact structures and a method of fabricating the same are disclosed. The method includes forming a fin structure on a substrate, forming a superlattice structure on the fin structure, forming first and second S/D regions within the superlattice structure, forming a gate structure between the first and second S/D regions, forming first and second contact structures on first surfaces of the first and second S/D regions, and forming a third contact structure, on a second surface of the first S/D region, with a work function metal (WFM) silicide layer and a dual metal liner. The second surface is opposite to the first surface of the first S/D region and the WFM silicide layer has a work function value closer to a conduction band energy than a valence band energy of a material of the first S/D region.

Abstract: A semiconductor device structure includes a source/drain feature comprising a first surface, a second surface opposing the first surface, and a sidewall connecting the first surface to the second surface. The structure also includes a dielectric layer having a continuous surface in contact with the entire second surface of the source/drain feature, a semiconductor layer having a first surface, a second surface opposing the first surface, and a sidewall connecting the first surface to the second surface, wherein the sidewall of the semiconductor layer is in contact with the sidewall of the source/drain feature. The structure also includes a gate dielectric layer in contact with the continuous surface of the dielectric layer and the second surface of the semiconductor layer, and a gate electrode layer surrounding a portion of the semiconductor layer.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A power supply system includes an output terminal, a power supply control chip, a power supply switch and a detection device. The power supply control chip is configured to adjust the amount of an input power providing to an electronic device by the power supply device. The power supply switch is configured to control the connection between the power supply device and the power supply control chip. The detection device is configured to detect whether the power supply control chip operates normally. When the power supply control chip operates abnormally, the detection device controls the connection between the power supply device and the power supply control chip through the power supply switch for restarting the power supply control chip. The power supply control chip, the power supply switch and the detection device are disposed in an enclosed space.

Abstract: A motor control system with adjustable voltage harmonic and method for correcting the motor control system is disclosed. Based on the input modulation order, the motor control system drives and controls a motor. The motor control system includes: a harmonic voltage weight selection unit, used to select weight values of the harmonic wave corresponding to the modulation order, a modulation signal selection unit, used to select the output pulse duty ratio modulation signal corresponding to the modulation order. Based on the weight values of the harmonic wave, the output pulse duty ratio modulation signal and the pulse modulation carrier frequency signal, a pulse modulation part generates a control signal. Based on the control signal, the inverter circuit adds the harmonic voltage into the motor-driving voltage that drives the motor, so as to improve the noise condition of the motor.

Abstract: A method for determining an initial rotor position of a permanent magnet synchronous motor (PMSM) includes: generating a plurality of transient currents by applying a plurality of voltages to each phase stator winding of a three phase stator winding of the PMSM; generating three phase current differences according to the plurality of transient currents; determining a first zone in which the initial rotor position of the PMSM is located according to the three phase current differences, wherein angles between 0-360 degrees are divided into a plurality of zones, and the first zone is selected from the plurality of zones; calculating three line current differences according to the three phase current differences; and determining the initial rotor position of the PMSM according to the first zone and the three line current differences.

Abstract: A motor control system with adjustable voltage harmonic and a method for correcting the motor control system is disclosed. Based on the input modulation order, the motor control system drives and controls a motor. The motor control system includes: a control order selection unit to generate a control order based on the modulation order, a modulation signal control unit used to generate a pulse output duty ratio modulation signal, a harmonic voltage weight selection unit used to select the weight value of the harmonic wave, a pulse modulation part to generate a control signal based on the modulation signal indicating the pulse output duty ratio, the weight value of the harmonic wave, and the pulse modulation carrier frequency signal. Based on the control signal, the inverter circuit adds the harmonic voltage into the motor-driving voltage to drive the motor, so as to reduce the noise or vibration of the motor.

Abstract: A method for determining an initial rotor position of a permanent magnet synchronous motor (PMSM) includes: generating a plurality of transient currents by applying a plurality of voltages to each phase stator winding of a three phase stator winding of the PMSM; generating three phase current differences according to the plurality of transient currents; determining a first zone in which the initial rotor position of the PMSM is located according to the three phase current differences, wherein angles between 0-360 degrees are divided into a plurality of zones, and the first zone is selected from the plurality of zones; calculating three line current differences according to the three phase current differences; and determining the initial rotor position of the PMSM according to the first zone and the three line current differences.

Abstract: A method for determining zero crossing occurrence in an alternating current (AC) signal with constant frequency of a permanent magnet synchronous motor (PMSM) includes: sampling the AC signal to obtain a plurality of data points; starting to count a number of consecutive data points that have sampled values with a same sign in a detection range, to generate a count value, wherein the consecutive data points are included in the plurality of data points; determining whether the count value is equal to a zero crossing determination value; and in response to the count value being equal to the zero crossing determination value, determining that a zero crossing occurs at a last data point of the consecutive data points.

Abstract: A multiple power supply system includes first and second power supply units. The first power supply unit provides a main output voltage while in a normal mode of operation. The first power supply unit includes a first bulk capacitor, and first standby power circuitry. The first standby power circuitry provides a standby voltage while the first power supply unit is in the normal mode of operation. The second power supply unit provides the main output voltage while in the normal mode of operation. The first power supply unit includes a second bulk capacitor, and second standby power circuitry. The second standby power circuitry provides the standby voltage while the first power supply unit is in the normal mode of operation, and enables reverse charging of the second bulk capacitor by the first power supply unit while the second power supply unit is in a reverse charging mode of operation.

Abstract: A multiple power supply system includes first and second power supply units. The first power supply unit provides a main output voltage while in a normal mode of operation. The first power supply unit includes a first bulk capacitor, and first standby power circuitry. The first standby power circuitry provides a standby voltage while the first power supply unit is in the normal mode of operation. The second power supply unit provides the main output voltage while in the normal mode of operation. The first power supply unit includes a second bulk capacitor, and second standby power circuitry. The second standby power circuitry provides the standby voltage while the first power supply unit is in the normal mode of operation, and enables reverse charging of the second bulk capacitor by the first power supply unit while the second power supply unit is in a reverse charging mode of operation.

Abstract: A multiple power supply system includes first and second power supply units. The first power supply unit provides a main output voltage while in a normal mode of operation. The first power supply unit includes a first bulk capacitor, and first standby power circuitry. The first standby power circuitry provides a standby voltage while the first power supply unit is in the normal mode of operation. The second power supply unit provides the main output voltage while in the normal mode of operation. The first power supply unit includes a second bulk capacitor, and second standby power circuitry. The second standby power circuitry provides the standby voltage while the first power supply unit is in the normal mode of operation, and enables reverse charging of the second bulk capacitor by the first power supply unit while the second power supply unit is in a reverse charging mode of operation.

Abstract: A power supply for an information handling system includes a rectifier circuit that is coupled to a power factor correction circuit. The power factor correction circuit includes a bulk capacitor. An extended hold-up capacitor is coupled in parallel to the bulk capacitor, via an electronic switch. The electronic switch has a first terminal coupled to the bulk capacitor and a second terminal coupled to the extended hold-up capacitor. A control circuit is coupled to a third terminal of the electronic switch and controls the operation of the electronic switch. An extended hold-up circuit is coupled to the extended hold-up capacitor and an output terminal of the power factor correction circuit. A digital signal controller is coupled to the extended hold-up circuit. The digital signal controller controls the operation of the extended hold-up circuit, and a DC to DC converter is coupled to the extended hold-up circuit.

Abstract: A multiple power supply system includes first and second power supply units. The first power supply unit provides a main output voltage while in a normal mode of operation. The first power supply unit includes a first bulk capacitor, and first standby power circuitry. The first standby power circuitry provides a standby voltage while the first power supply unit is in the normal mode of operation. The second power supply unit provides the main output voltage while in the normal mode of operation. The first power supply unit includes a second bulk capacitor, and second standby power circuitry. The second standby power circuitry provides the standby voltage while the first power supply unit is in the normal mode of operation, and enables reverse charging of the second bulk capacitor by the first power supply unit while the second power supply unit is in a reverse charging mode of operation.

Abstract: Active droop current sharing among power supply units may regulate output currents of power supply units supplying shared current to a common load. The regulation may employ a combination of droop control and active current control. The shared current may be regulated such that each power supply unit provides a substantially equal share of the total current supplied. A current difference between two power supplies may be regulated to be within a desired maximum threshold for current difference.

Abstract: A power supply for an information handling system includes a rectifier circuit that is coupled to a power factor correction circuit. The power factor correction circuit includes a bulk capacitor. An extended hold-up capacitor is coupled in parallel to the bulk capacitor, via an electronic switch. The electronic switch has a first terminal coupled to the bulk capacitor and a second terminal coupled to the extended hold-up capacitor. A control circuit is coupled to a third terminal of the electronic switch and controls the operation of the electronic switch. An extended hold-up circuit is coupled to the extended hold-up capacitor and an output terminal of the power factor correction circuit. A digital signal controller is coupled to the extended hold-up circuit. The digital signal controller controls the operation of the extended hold-up circuit, and a DC to DC converter is coupled to the extended hold-up circuit.

Abstract: An image-type notification and recording method of a hardware event and status of an electronic device, including the following steps: storing at least one mainboard image and image data to firmware; transmitting, by a component, a detected text or digit corresponding to an event or a status to a processor; reading, by the processor, the mainboard image and the image data in the firmware; and displaying, by the processor, according to the text or digit corresponding to the event or the status, the mainboard image of a warning image combined with the corresponding event or status. The present invention also provides an image-type notification and recording system of a hardware event and status of an electronic device, a recording medium, and a computer program product.