Abstract: The present invention relates to a high-efficiency controller of a gas-filled light producing tube; the controller can produce signals in a form of outputs of high-frequency sine wave to soft-start a gas-filled light producing tube according to the principle of modulation and oscillation of pulse (P.W.M.) so that the gas-filled tube produces light, and that service light of the gas-filled tube can be lengthened. If abnormal conditions happen, e.g. people's touching the gas-filled tube, and the tube breaking, the controller will make the transformer stop working immediately, preventing sparks from being produced to hurt people, making the gas-filled light producing tube safe to use.

Abstract: A playpen includes a plurality of support bars, a bed cushion, and a fixing device to fix the bed cushion on the support bars. Thus, the snapping plate of each of the holders of the fixing device is locked on the respective positioning seat, and the sleeve of each of the holders of the fixing device is locked on the respective support bar by the locking, so that each of the holders is positioned on the respective positioning seat and the respective support bar so as to support the bed cushion rigidly and stably, thereby preventing the bed cushion from becoming loosened or detached from the playpen.

Abstract: A method for forming solder bumps (or solder balls after reflow) of improved height and reliability is provided. In one embodiment, a semiconductor substrate having at least one contact pad and an upper passivation layer having at least one opening formed therein exposing a portion of the contact pad is provided. A layer of under bump metal (UBM) is formed above the passivation layer and the contact pad. A first patterned and etched photoresist layer is provided above the UBM layer, the first patterned and etched photoresist layer defining at least one first opening therein. A second patterned and etched photoresist layer is provided above the first patterned and etched photoresist layer, the second patterned and etched photoresist layer defining at least one second opening therein, the second opening being wider than the first opening. A solder material is filled in the at least one first opening and substantially filled in the at least one second opening.

Abstract: The present invention relates to a high-efficiency controller of a gas-filled light producing tube; the controller can produce signals in a form of outputs of high-frequency sine wave to soft-start a gas-filled light producing tube according to the principle of modulation and oscillation of pulse (P.W.M.) so that the gas-filled tube produces light, and that service light of the gas-filled tube can be lengthened. If abnormal conditions happen, e.g. people's touching the gas-filled tube, and the tube breaking, the controller will make the transformer stop working immediately, preventing sparks from being produced to hurt people, making the gas-filled light producing tube safe to use.

Abstract: A foldable skeleton for a playpen foldable skeleton includes an upper frame, four upright rods, and a bottom frame. The upper frame includes two pairs of first rods, two pairs of second rods, four joints, and four connecting seats. Each of the joints includes a main base, a press button, a cover, a locking block, an elastic member, and two linking blocks. The bottom frame includes four support seats, four bottom rods, two linking gears, a connecting base, a pull member, and an operation member. Thus, the teeth of the two linking gears mesh with each other, so that the two linking gears are rotated relative to each other in a synchronous manner, and the bottom rods are folded synchronously.

Abstract: The present invention relates to a high-efficiency circuit-equipped light emitting board, which is made so as to be usable as advertisement boards and signs, and can be used either indoor ones or outdoor ones. The light emitting board includes inner and outer frames, a display board, light emitting diodes, and a driving circuit for making the light emitting diodes to produce light. The display board allows light to travel through it, and has words, patterns, characters, drawings or signs adhered thereto. The display board is disposed between the frames in such a way that users can easily substitute it with a different one. And, the present board is watertight.

Abstract: A baby rocking chair frame has a connection device, a first generally V-shaped base frame, a second generally V-shaped base frame, and a U-shaped frame. The U-shaped frame has a pair of generally cross-shaped holes, a pair of threaded apertures, and a first collar and a second collar inserted in two ends of the U-shaped frame. The first generally V-shaped base frame has a first end inserted in the first collar, and a second end having a first protruded block. The second generally V-shaped base frame has a first end inserted in the second collar, and a second end having a second protruded block. The connection device is connected to the second end of the first generally V-shaped base frame and the second end of the second generally V-shaped base frame.