Abstract: Provided are structures and methods for forming structures with sloping surfaces of a desired profile. An exemplary method includes performing a first etch process to differentially etch a gate material to a recessed surface, wherein the recessed surface includes a first horn at a first edge, a second horn at a second edge, and a valley located between the first horn and the second horn; depositing an etch-retarding layer over the recessed surface, wherein the etch-retarding layer has a central region over the valley and has edge regions over the horns, and wherein the central region of the etch-retarding layer is thicker than the edge regions of the etch-retarding layer; and performing a second etch process to recess the horns to establish the gate material with a desired profile.

Abstract: Disclosed is a semiconductor fabrication method. The method includes forming a gate stack in an area previously occupied by a dummy gate structure; forming a first metal cap layer over the gate stack; forming a first dielectric cap layer over the first metal cap layer; selectively removing a portion of the gate stack and the first metal cap layer while leaving a sidewall portion of the first metal cap layer that extends along a sidewall of the first dielectric cap layer; forming a second metal cap layer over the gate stack and the first metal cap layer wherein a sidewall portion of the second metal cap layer extends further along a sidewall of the first dielectric cap layer; forming a second dielectric cap layer over the second metal cap layer; and flattening a top layer of the first dielectric cap layer and the second dielectric cap layer using planarization operations.

Abstract: An input device for a computer is provided. The input device includes a motion detector and a receiver. The motion detector has an inertia sensor, a gyro, an optical mouse module, and a microprocessor. When the motion detector is in a motion operation mode, the inertia sensor and the gyro are enabled for detecting a motion state and direction of the motion detector in a 3-D space, so as to generate an inertia data and a direction data. When the motion detector is in a mouse operation mode, the optical mouse module is enabled for detecting a motion stat of the motion detector on a 2-D plane, so as to generate a coordinate data. The microprocessor codes the coordinate data or codes the inertia data and the direction data to generate a detecting data for the receiver. Then, the detecting data is transmitted to the computer for operating the computer.

Abstract: An input device of a computer system and a method for operating the computer system are provided. In the method for operating the computer system, a motion state of the input device in three-dimensional space is detected first. Then, a predetermined code is generated at an operation terminal or a main body terminal of the computer system according to the motion state of the input device. Afterwards, the predetermined code is converted to a corresponding object code, and the object code is sent to the main body terminal of the computer system to make the computer system operate according to the object code.

Abstract: An input apparatus for a computer system comprises an image object, a prime motion detector, and a receiver. The prime motion detector has an image detection unit, a G-sensor, a mouse module, a switch unit, and a micro control unit (MCU). The image detection unit is used for detecting the image object. The switch is coupled to the G-sensor, the image detection unit and the mouse module. By such means, the switch unit can select to transmit an output of the mouse module, or transmit outputs of the G-sensor and the image detection unit to the MCU according to a selection signal. The MCU encodes an output of the switch unit to generate a detecting data to the receiver, and the receiver transmits the detecting data to the computer system for operating the computer system.