Abstract: The disclosure provides an electronic device and a manufacturing method thereof. The electronic device includes a package structure, a circuit structure, a bonding structure and an external element. The circuit structure is disposed on the package structure and is electrically connected to the package structure. The circuit structure has a recess. The bonding structure includes a first bonding pad and a second bonding pad. The second bonding pad is disposed in the recess, and the second bonding pad is disposed on the first bonding pad. The bonding structure is disposed between the circuit structure and the external element. The external element is electrically connected to the circuit structure through the bonding structure. A width of the first bonding pad is smaller than a width of the second bonding pad.

Abstract: A resonant switching power converter circuit including: a switching converter, a control circuit and a pre-charging circuit; wherein the control circuit controls a first switch of the switching converter in a pre-charging mode, so as to control electrical connections between a first power and at least one of plural capacitors of the switching converter, and to control other switches of the switching converter, so as to control the pre-charging circuit to charge at least one capacitor to a predetermined voltage; wherein in a start-up mode, the plural switches control electrical connections of the capacitors according to first and second operation signals, such that after the pre-charging mode ends, the switching converter subsequently operates in the start-up mode; wherein in the start-up mode, the first and second operation signals have respective ON periods, and the time lengths of the ON periods increase gradually.

Abstract: The present invention provides a method of hydrogenating a solar cell and a device thereof. The device includes a chamber, a moving device, and a light-beam generator. The light-beam generated by the light-beam generator has a power density between 20 W/cm2 and 200 W/cm2 and a width between 1 mm and 156 mm. The light-beam scans a solar cell with a scanning speed between 50 mm/sec and 200 mm/sec to achieve hydrogenating the solar cell. Furthermore, the device includes a heating device used to heat the solar cell.

Abstract: The present disclosure provides a method for recovering the efficacy of solar cell modules and a device thereof. The method includes providing a solar cell module and scanning the solar cell module with a light-beam. The light-beam has a power density between 20 W/cm2 and 200 W/cm2, a width between 1 mm and 156 mm. The light-beam scans a solar cell module with a scanning speed between 50 mm/sec and 200 mm/sec. Furthermore, the present disclosure also provides a portable device for recovering the efficacy of solar cell modules. The portable device includes two types such as placed type and hand-held type. The aforementioned devices can perform a hydrogenating process on solar cell modules to improve the degree of light-induced degradation (LID) so as to improve the photovoltaic conversion efficiency of solar cell modules.

Abstract: The present disclosure provides a method for recovering the efficacy of solar cell modules and a device thereof. The method includes providing a solar cell module and scanning the solar cell module with a light-beam. The light-beam has a power density between 20 W/cm2 and 200 W/cm2, a width between 1 mm and 156 mm. The light-beam scans a solar cell module with a scanning speed between 50 mm/sec and 200 mm/sec. Furthermore, the present disclosure also provides a portable device for recovering the efficacy of solar cell modules. The portable device includes two types such as placed type and hand-held type. The aforementioned devices can perform a hydrogenating process on solar cell modules to improve the degree of light-induced degradation (LID) so as to improve the photovoltaic conversion efficiency of solar cell modules.

Abstract: An LED tube comprises a glass tube, a PCB disposed in the glass tube, a heat-dissipating colloid disposed in the glass tube, a plurality of LED lights disposed on the PCB, and two electrode caps respectively connected to both ends of the glass tube. By densely filling a room between a peripheral wall of the glass tube and a top surface of the PCB with the heat-dissipating colloid, an exhaust heat caused by illuminating the LED lights and a high temperature generated from the PCB are absorbed and dissipated out of the tube, thereby constructing a connective dissipating concatenation of heat conduction. A heat-disipating unit can be preferably disposed at an exterior periphery of the tube to obtain a quick and multiple heat-dissipating effect and decrease the temperature in the glass tube, thereby facilitating the illuminating efficiency and increasing the duration of the LED tube.

Abstract: An LED lamp capable of increasing light saturation utilizes a mixing layer to be formed on a reflecting layer since the mixing layer is arranged by multiple dots that are distributed at intervals and formed as a dot-matrix layer. At least one color formed on the dots to present the colored dot-matrix display allows the light beams from the LED lamp to be mixed with the color on the dot-matrix layer and then reflected for promoting the color temperature uniformity of the light beams and decreasing the generation of dark zone, which efficiently provides light beams with a uniform saturation for illuminating.

Abstract: An LED lamp scattering heat swiftly by exchanging currents mainly constructs multiple channels interleaved in heat scattering areas among fin units of a cooling device. At least one first hole is defined on a wall of each channel for assisting the channels in communicating with the heat scattering areas. Accordingly, the exterior air is introduced from the channels into an accommodating chamber of a seat body of the LED lamp. Thence, a fan installed in the LED lamp further blows the exterior air and the wasted heat of the LED unit to cause a current exchanging effect. Whereby, the wasted heat is efficiently expelled from the LED lamp, which increases the heat radiating efficiency and the using life of the LED lamp and remedies restrictions on installations of the LED lamp for expanding the lamp application.

Abstract: An LED lamp scattering heat by exchanging currents has a current guider disposed on a seat body. The current guider divides an accommodating chamber of the seat body into at least one first current channel and at least one second current channel. On a periphery of the seat body defines at least one first opening corresponding to the second current channel and at least one second opening defined near a fan of a cooling device. By guiding exterior currents out of the first opening via the second current channel, the exterior currents further enter the second opening of the seat body for being expelled out of the first current channel via the fan to complete an air flow circulation by exchanging currents, which increases the heat radiating efficiency and the using life of the LED lamp and remedies restrictions on installations of the lamp for expanding the lamp application.

Abstract: An ultrasonic cleaning apparatus for household use is small and compact, easy to use, and inexpensive to buy and to operate. It includes a base, an electric circuit supported upon the base, a circumferential housing extending upward from the base, a liquid tank within the upper portion of the housing, and an electro-mechanical transducer secured to the bottom side of the liquid tank and coupled to the eletric circuit to be driven thereby. The periphery of the liquid tank is supported from the housing in secure liquid-sealing relationship so as to protect the electric circuit from any liquid spillage. A removable cover fits over the top of the housing and covers the liquid tank and contents.A separate feature of the invention is a removable jewelry basket which may be positioned within the liquid tank for holding jewelry that is being cleaned, but can then be rested above the tank while the liquid drains out and the jewelry dries.