Abstract: A substrate is provided having an oxide layer, a first nitride-silicon, a STI, and a second nitride-silicon. A pattern poly-silicon layer on the second nitride-silicon layer is etched to form a deep trench opening. Etching the pattern poly-silicon layer also deepens the deep trench opening. Then, a conductive layer is filled in the deep trench opening.

Abstract: An adjustable device for pliers includes an operation member movably extending through a through hole in the first part and a slot in the second part. The operation member includes an exterior smooth section and a toothed section which can be disengageably engaged with teeth defined in the slot to set the width between the two jaws. A spring is biased to the operation member and stopped by an end member which is connected to a positioning member mounted to the operation member. The operation member is pushed to disengage the toothed section from the teeth of the slot so that the two parts can be pivoted to adjust the two jaws to a desired width and the operation member is released which is pushed back by the spring to engage the toothed section of the operation member with the teeth of the slot.

Abstract: An adjustable device for pliers includes an operation member movably extending through a through hole in the first part and a slot in the second part. The operation member includes an exterior smooth section and a toothed section which can be disengageably engaged with teeth defined in the slot to set the width between the two jaws. A spring is biased to the operation member and stopped by an end member which is connected to a positioning member mounted to the operation member. The operation member is pushed to disengage the toothed section from the teeth of the slot so that the two parts can be pivoted to adjust the two jaws to a desired width and the operation member is released which is pushed back by the spring to engage the toothed section of the operation member with the teeth of the slot.

Abstract: A fuel and air mixing device includes a tank for receiving fuel therein and a compressor on a top of the tank is connected to a first port of a mixing device and a valve assembly having a pipe connected to a second port of the mixing device. A siphon is connected to the valve assembly and extends in the fuel in the tank so as to siphon the fuel to go through the mixing device to form smaller particles which are entered the tank and mixed with air provided by the compressor. The mixture is then sent to an outlet of the valve assembly. A control unit is connected to the valve assembly and the compressor for a convenience of operation to the users.

Abstract: A laser measuring device includes a housing, a laser head, two levels, a power supply, and a control knob. Thus, the housing has a non-symmetrical structure, so that when one of the casings of the housing is removed, the adjusting screws of the laser head are entirely exposed outward from the housing, thereby facilitating adjustment of the laser head and the levels.

Abstract: A laser measuring device includes a housing, a laser head, two levels, a power supply, and a control knob. Thus, the housing has a non-symmetrical structure, so that when one of the casings of the housing is removed, the adjusting screws of the laser head are entirely exposed outward from the housing, thereby facilitating adjustment of the laser head and the levels.

Abstract: A pedal shaft structure of a bicycle having a second pedaling function is proposed. A shaft tube of the bicycle has a braking unit and a shaft. Pedals are arranged at two ends of the shaft through cranks. The shaft has a main shaft, a second spring and a pair of bearings. The main shaft has a first shaft, a second shaft, a first bushing and a first spring. The second spring is telescoped at the main shaft and one end thereof is fixed to the second shaft. The pair of bearings are arranged at two ends of the shaft tube and telescoped at two ends of the main shaft. The braking unit comprises an insertion hole formed at the shaft tube, an insertion rod inserted into the insertion hole, a steering component, a steel rope connected between the steering component and the insertion rod.

Abstract: A measuring tape assembly includes a housing, a first level mounted on the housing, a second level mounted on the housing and having a direction different from that of the first level, and a scrolling tape rotatably mounted in the housing. Thus, measuring tape assembly can be used to adjust and calibrate the level of the article in two directions by the first level and the second level vertical to each other.

Abstract: A bicycle having dual-purpose pedals is provided, wherein the structure of a main shaft tube of the bicycle is improved. The structure has a main shaft, a first spring, a gear bushing, a crank, a second spring, a washer and a fixing unit. The main shaft is received in the main shaft tube. The first spring is telescoped onto the main shaft. The washer, the second spring, and the gear bushing are received in order in a crank hole of the crank. The washer is fixed at the distal end of the main shaft by a screw. The fixing unit passes through and is fixed on the main shaft tube. The bicycle can be used as a conventional bicycle having a one-up-one-down, 360-degree, circular rotation pedaling function. The user can also change and control the two pedals to accomplish a same-up-same-down pedaling function for enhancing entertainment during use.

Abstract: A single-ended high-voltage level shifter for a TFT-LCD gate driver comprises a high-voltage power supply and a low-voltage power supply, a low-voltage NMOS transistor, a high-voltage NMOS transistor, and a high-voltage PMOS transistor. An input signal is applied at the gate of the low-voltage NMOS transistor. The source of the low-voltage NMOS transistor is connected to the low-voltage power supply. The source of the high-voltage NMOS transistor is connected to the drain of the low-voltage NMOS transistor. The high-voltage NMOS transistor has a first reference voltage applied at its gate. The level of the first reference voltage is between the input-signal level and the high-voltage power supply. The drain of the high-voltage PMOS transistor is connected to the drain of the high-voltage NMOS transistor. The source of the high-voltage PMOS transistor is connected to the high-voltage power supply. The high-voltage PMOS transistor has a second reference voltage applied at its gate.

Abstract: A level includes an elongated body having an open end for receiving a power supply assembly therein. A bubble vial is engaged with a frame which is connected to the body. A light bulb is engaged with an end of the frame and is powered by the light bulb. A switch is connected to an end of power supply assembly and is accessed by a user.

Abstract: A tape measure includes a case having a reel of tape received therein and a light is engaged with the front surface of case and located above a slot from which the tape is pulled. A light switch is connected to a rear surface of the case and electrically connected to the light so as to light up the marks on the tape.

Abstract: A folding rule includes a first stick having a first hole with a plurality of first protrusions located radially around the first hole. A second stick has a second hole with a plurality of second protrusions located radially around the second hole. A rivet has a resilient member mounted thereto and extends through the first hole and the second hole. The first protrusions are engaged with grooves defined between the second protrusions. The resilient member is compressed so as to disengage the first protrusions on the first stick from the grooves in the second stick. By this way, the first stick is pivoted relative to the second stick.

Abstract: A handle grip for a wrench includes a tubular body mounted to a shank of the wrench and a plurality of recesses are defined in the tubular body. The recesses extend toward a direction which is parallel with an axis of an object engaged by the wrench.

Abstract: A single-ended high-voltage level shifter for a TFT-LCD gate driver comprises a high-voltage power supply and a low-voltage power supply, a low-voltage NMOS transistor, a high-voltage NMOS transistor, and a high-voltage PMOS transistor. An input signal is applied at the gate of the low-voltage NMOS transistor. The source of the low-voltage NMOS transistor is connected to the low-voltage power supply. The source of the high-voltage NMOS transistor is connected to the drain of the low-voltage NMOS transistor. The high-voltage NMOS transistor has a first reference voltage applied at its gate. The level of the first reference voltage is between the input-signal level and the high-voltage power supply. The drain of the high-voltage PMOS transistor is connected to the drain of the high-voltage NMOS transistor. The source of the high-voltage PMOS transistor is connected to the high-voltage power supply. The high-voltage PMOS transistor has a second reference voltage applied at its gate.