Abstract: Embodiments provide a way of treating source/drain recesses with a high heat treatment and an optional hydrogen plasma treatment. The high heat treatment smooths the surfaces inside the recesses and remove oxides and etching byproducts. The hydrogen plasma treatment enlarges the recesses vertically and horizontally and inhibits further oxidation of the surfaces in the recesses.

Abstract: A color wheel phase detection method and a projector using the same are provided. Firstly, a projector, including a light source, a color wheel, a motor, an indication signal generator and a controller, is provided, wherein the motor drive having n pairs of magnetic polarities drives the color wheel, including n color block groups of the same kind, to rotate, wherein n is a positive integer ?1. Then, the color wheel is driven to rotate by the motor. Then, a light is projected on the n color block groups by the light source. Then, a phase signal having 2n zero-crossing points is generated by the motor. Then, an indication signal including n pulses corresponding to n zero-crossing points is generated by the indication signal generator according to the 2n zero-crossing points. Then, the phase of the color wheel is detected by the controller according to the indication signal.

Abstract: A color wheel phase detection method and a projector using the same are provided. Firstly, a projector, including a light source, a color wheel, a motor, an indication signal generator and a controller, is provided, wherein the motor drive having n pairs of magnetic polarities drives the color wheel, including n color block groups of the same kind, to rotate, wherein n is a positive integer ?1. Then, the color wheel is driven to rotate by the motor. Then, a light is projected on the n color block groups by the light source. Then, a phase signal having 2n zero-crossing points is generated by the motor. Then, an indication signal including n pulses corresponding to n zero-crossing points is generated by the indication signal generator according to the 2n zero-crossing points. Then, the phase of the color wheel is detected by the controller according to the indication signal.

Abstract: A circuit protection system, which is coupled to an input end of an integrated circuit receiving an input signal from a signal source, includes an electrostatic discharge protection element and a leakage current protection circuit. The leakage current protection circuit includes a first filter capacitor coupled to the electrostatic discharge protection element, wherein when the input signal includes leakage current with an ac component, the first filter capacitor behaves as a high impedance unit for preventing the leakage current from passing through the electrostatic discharge protection component, and when the input signal includes static electricity, the first filter capacitor behaves as a low impedance unit for allowing the input signal to pass through the electrostatic discharge protection element.