摘要:
A spindle seat in a fan provides a spindle holding seat and a spindle with a conical end. Because the conical end contacts with the holding seat by way of point contact, the frictional area between the holding seat and the conical end is very small. Hence, a little friction force may generate to result in the fan is provided with a smooth running, low noise, and less heat generation.
摘要:
A motor control system includes a voltage regulating module, an auxiliary activating module, and a drive module. The voltage regulating module is operable to receive a voltage and generate an electrical level regulated voltage by regulating the voltage. The auxiliary activating module is operable to generate a constant duty cycle signal and output the constant duty cycle signal for a period. The drive module is operable to receive the electrical level regulated voltage and the constant duty cycle signal, and control a motor based on the electrical level regulated voltage and the constant duty signal. Also, the present invention also discloses a fan which is applied to the above-mentioned motor control system.
摘要:
A device and system for thin wafer cleaning is disclosed. A preferred embodiment comprises a spin chuck having at least three holding clamps. A thin wafer with a wafer frame is mounted on the spin chuck through a tape layer. When the holding clamps are unlocked, there is no interference with the removal and placement of the wafer frame. On the other hand, when the holding clamps are locked, the holding clamps are brought into contact with the outer edge of the wafer frame so as to prevent the wafer frame from moving laterally. Furthermore, the shape of the holding clamps in a locked position is capable of preventing the wafer frame from moving vertically.
摘要:
A rapid cooling system for a rapid thermal processing chamber is disclosed. In one embodiment, the rapid cooling system includes a rapid thermal processing chamber having a wafer support for supporting a wafer. A tank having a supply of cooling liquid is provided in fluid communication with the chamber. A pump is provided in fluid communication with the rapid thermal processing chamber and the tank for pumping the cooling liquid from the tank to the chamber and cooling the wafer during the cooling phase of rapid thermal processing.
摘要:
An apparatus and a method for environmental control in a process chamber, and specifically, in a spin coating chamber are disclosed. In the apparatus, an air velocity control system which consists of a pressure sensor, a throttle valve controller and a throttle valve is utilized for controlling the air velocity in a spin coating chamber, and specifically in a drain cup of a spin coating chamber. The present invention apparatus enables a novel method for reducing the air velocity in a spin chamber for achieving a more accurate process control, while maintaining a substantially constant humidity level in the process chamber. Frequently observed large fluctuations in the humidity and temperature in an air flow that is flown into the process chamber are thus minimized or eliminated. The present invention novel method and apparatus allows a spin coating process, and specifically a SOG spin coating process, to be carried out with improved accuracy and reliability.
摘要:
An apparatus for adjusting a minimum liquid level in a liquid supply bottle that utilizes a novel height adjustment means and a method for utilizing such apparatus are provided. In the apparatus, a height adjustment means that is positioned on a base frame of a bottle station for supporting a liquid supply bottle is used. The height adjustment means includes two sliding blocks each having a right-angled triangular cross-section slidingly engaging each other on their hypotenuses. The two sliding blocks may be driven by two screws each threadingly engaging one of the side frames for pushing (or pulling) the sliding blocks toward (or away from) each other such that an elevation of the bottle can be increased (or decreased). The present invention novel apparatus further utilizes a bottle clamp which frictionally engaging the liquid supply bottle and hold it in place while allowing the bottle be moved up and down by slidingly engaging a vertical arm of the clamp with a side frame on the bottle station.