Abstract: A packaging structure and a method for fabricating the packaging structure are provided. The packaging structure includes a base substrate including a solder pad body region and a trench region adjacent to and around the solder pad body region. The packaging structure also includes a passivation layer on a surface of the base substrate and exposing the solder pad body region and the trench region. In addition, the packaging structure includes a main body solder pad on the solder pad body region of the base substrate, and one or more trenches on the trench region of the base substrate and between the passivation layer and the main body solder pad. Further, the packaging structure includes a bonding conductive wire having one end connected to the main body solder pad.

Abstract: A resonant power converter is disclosed with a driving circuit generating a switching signal connecting power to a resonant tank circuit, with a voltage monitoring circuit measuring a voltage output and a load current. A micro-controller is operable with a control circuit for multiple step sampling with the switching signal at a switching frequency to settle the resonant circuit determined from the voltage output and load current. A fast load transient response at a high frequency with the resonant circuit provides the multiple step sampling to ensure enough time for micro-controller to calculate. Optimal trajectory control facilitates a burst mode of high frequency with the resonant circuit using adaptive multiple step sampling for an on-time to extend the burst operation range. A soft start-up process uses the micro-controller processing in multiple stages.

Abstract: A camera includes a main body, a positioning member fixedly fitted about the main body, and a latching member. The main body includes a camera lens. The camera lens extends through the positioning member and is exposed out of the positioning member. The positioning member evenly defines four grooves surrounding the camera lens. Each groove includes two inclined surfaces. The latching member includes a main plate with a through hole aligned with the camera lens. Four catching portions extend down from the main plate surrounding the through hole, and the catching portions are respectively received in the corresponding grooves of the positioning member. Each catching portion includes two inclined walls affixed to the two inclined surfaces respectively.