Abstract: A method for fabricating semiconductor device includes the steps of: forming a gate structure on a substrate; forming a spacer around the gate structure; and forming a buffer layer adjacent to the gate structure. Preferably, the buffer layer includes a crescent moon shape and the buffer layer includes an inner curve, an outer curve, and a planar surface connecting the inner curve and an outer curve along a top surface of the substrate, in which the planar surface directly contacts the outer curve on an outer sidewall of the spacer.

Abstract: For solving the defect that a hardware clock of a serial peripheral interface bus has to cooperate with slower software-simulated clocks used by a microprocessor while applying serial peripheral interface buses on a large-scale touch panel, a programmable logic device is used as a bridge of communicating information between the micro processor and sensors. Therefore, the microprocessor no longer has to take execution time to simulate serial peripheral interface buses by software, and is able to program hardware clocks of each of the serial peripheral interface buses according to speed requirements of different sensors, so that sensing signals of a plurality of sensors may be integrated on a touch device having the large-scale touch panel, and a processing speed of the touch device in processing the sensing signals may be optimized as a result.

Abstract: A touch screen includes a substrate, a plurality of conductive areas and a controller. The conductive areas are disposed on the substrate. The controller is electrically connected to the conductive areas. When one of the conductive areas is touched, the controller determines a coordinate where the touched conductive area is located on the substrate according to the capacitance change of the touched conductive area.

Abstract: For solving the defect that a hardware clock of a serial peripheral interface bus has to cooperate with slower software-simulated clocks used by a microprocessor while applying serial peripheral interface buses on a large-scale touch panel, a programmable logic device is used as a bridge of communicating information between the micro processor and sensors. Therefore, the microprocessor no longer has to take execution time to simulate serial peripheral interface buses by software, and is able to program hardware clocks of each of the serial peripheral interface buses according to speed requirements of different sensors, so that sensing signals of a plurality of sensors may be integrated on a touch device having the large-scale touch panel, and a processing speed of the touch device in processing the sensing signals may be optimized as a result.