Abstract: A method of controlling phase shift pulse width modulation of a power converter, the method includes a step of obtaining sampling signals of an output voltage and current of the power converter. Then, a digital signal processor is used to calculate an output power of the power converter. Next, a comparator is used to compare the output power of the power converter with a reference power. When the output power is less than the reference power, the modulation control of the switch of the power converter enters into hard-switching mode, and when the output power is greater than the reference power, the modulation control of the switch of the power converter enters into soft-switching mode.

Abstract: A semiconductor package is provided, which includes a first chip disposed over a first package substrate, a molding compound surrounding the first chip, a first thermal interface material disposed over the first chip and the molding compound, a heat spreader disposed over the thermal interface material, and a second thermal interface material disposed over the heat spreader. The first thermal interface material and the second thermal interface material have an identical width.

Abstract: A semiconductor structure, comprising a redistribution layer (RDL) including a dielectric layer and a conductive trace within the dielectric layer; a first conductive member disposed over the RDL and electrically connected with the conductive trace; a second conductive member disposed over the RDL and electrically connected with the conductive trace; a first die disposed over the RDL; a second die disposed over the first die, the first conductive member and the second conductive member; and a connector disposed between the second die and the second conductive member to electrically connect the second die with the conductive trace, wherein the first conductive member is electrically isolated from the second die.

Abstract: A susceptor assembly for supporting a crucible during a crystal growth process includes a susceptor base, a tubular sidewall connected to the susceptor base, and a removable sacrifice ring interposed between the susceptor base and the sidewall. Each of the susceptor base and the sidewall is formed of a carbon-containing material. The susceptor base has an annular wall and a shoulder extending radially outward from an outer surface of the annular wall. The sidewall has a first end that receives the annular wall to connect the sidewall to the susceptor base. The sacrifice ring has a first surface that faces the outer surface of the annular wall, a second surface that faces an interior surface of the sidewall, and a ledge extending outward from the second surface that engages the first end of the sidewall.

Abstract: The present invention provides an electromagnetic apparatus with heat sink structure, comprising: metal housing, the metal housing further comprises the upper housing and the lower housing to fix the components of the electromagnetic apparatus and store the energy of the electromagnetic apparatus during operation; the electrical coil is mounted on the coil shelf and is provided with numbers of primary windings and secondary windings; the heat conductive tube is arranged in the gap of the windings for conducting the heat generated by the electrical coil to the outside of the electromagnetic apparatus. Furthermore, the conducting wire is electrically coupled to the electrical coil and transmits the input voltage and output voltage during the operation of electromagnetic apparatus.

Abstract: The present invention provides an electromagnetic apparatus with heat sink structure, comprising: metal housing, the metal housing further comprises the upper housing and the lower housing to fix the components of the electromagnetic apparatus and store the energy of the electromagnetic apparatus during operation; the electrical coil is mounted on the coil shelf and is provided with numbers of primary windings and secondary windings; the heat conductive tube is arranged in the gap of the windings for conducting the heat generated by the electrical coil to the outside of the electromagnetic apparatus. Furthermore, the conducting wire is electrically coupled to the electrical coil and transmits the input voltage and output voltage during the operation of electromagnetic apparatus.

Abstract: An antenna structure includes a first radiation element, a second radiation element, and a third radiation element. The first radiation element has a feeding point. The third radiation element is coupled through the second radiation element to the first radiation element. The third radiation element has a first opening and a second opening which are separate from each other. The antenna structure covers a first frequency band, a second frequency band, and a third frequency band.

Abstract: An antenna structure includes a first radiation element, a second radiation element, and a third radiation element. The first radiation element has a feeding point. The third radiation element is coupled through the second radiation element to the first radiation element. The third radiation element has a first opening and a second opening which are separate from each other. The antenna structure covers a first frequency band, a second frequency band, and a third frequency band.

Abstract: A high-efficiency method for producing metal from metal oxide by carbothermic reduction includes step in which a holed cake is provided, which has a composition comprising a metal oxide, a carbonaceous reducing agent, and a binder, and the holed cake has a plurality of holes. The method continues with step in which the holed cake is placed in a high-temperature furnace for carbothermic reduction, to reduce the metal oxide in the holed cake into a metal.

Abstract: A communication apparatus for using a first and second subscriber identifications at the same time for accessing a first and second telecommunication networks correspondingly includes a first communication circuit for accessing the first telecommunication network according to the first subscriber identification; a second communication circuit for accessing the second telecommunication network according to the second subscriber identification, where the first telecommunication network and the second telecommunication network correspond to the same telecommunication standard; a central controlling device, with a user interface, for receiving a command; and a controller, coupled to the second communication circuit, for controlling operations of the second communication circuit, wherein the central controlling device is coupled to the first communication circuit and the controller, and the central controlling device is shared by the first communication circuit and the controller.

Abstract: In a method for permitting change of an electronic card without powering off and a communications device employing the method, the communications device includes a control module, a card connector for receiving the electronic card, and a trigger module. The method includes: when the communications device is in an on state, triggering the trigger module to generate a trigger signal to the control module; enabling the control module to determine a card insertion mode if it is detected that a state of electrical connection of the card connector with an electronic card changes from a disconnected state to a connected state after receipt of the trigger signal; and enabling the control module for supplying power to the electronic card inserted into the card connector upon determining the card insertion mode.

Abstract: In a method for permitting change of an electronic card without powering off and a communications device employing the method, the communications device includes a control module, a card connector for receiving the electronic card, and a trigger module. The method includes: when the communications device is in an on state, triggering the trigger module to generate a trigger signal to the control module; enabling the control module to determine a card insertion mode if it is detected that a state of electrical connection of the card connector with an electronic card changes from a disconnected state to a connected state after receipt of the trigger signal; and enabling the control module for supplying power to the electronic card inserted into the card connector upon determining the card insertion mode.

Abstract: A communication apparatus for using a first and second subscriber identifications at the same time for accessing a first and second telecommunication networks correspondingly includes a first communication circuit for accessing the first telecommunication network according to the first subscriber identification; a second communication circuit for accessing the second telecommunication network according to the second subscriber identification, where the first telecommunication network and the second telecommunication network correspond to the same telecommunication standard; a central controlling device, with a user interface, for receiving a command; and a controller, coupled to the second communication circuit, for controlling operations of the second communication circuit, wherein the central controlling device is coupled to the first communication circuit and the controller, and the central controlling device is shared by the first communication circuit and the controller.