Abstract: An embodiment is a device including a first fin extending from a substrate, a first gate stack over and along sidewalls of the first fin, a first gate spacer disposed along a sidewall of the first gate stack, and a first epitaxial source/drain region in the first fin and adjacent the first gate spacer. The first epitaxial source/drain region including a first epitaxial layer on the first fin, the first epitaxial layer including silicon and carbon, a second epitaxial layer on the first epitaxial layer, the second epitaxial layer having a different material composition than the first epitaxial layer, the first epitaxial layer separating the second epitaxial layer from the first fin, and a third epitaxial layer on the second epitaxial layer, the third epitaxial layer having a different material composition than the first epitaxial layer.

Abstract: A transmission method and a transmission mechanism for a toy gun are provided. The method comprises the steps of: moving a firing action backward by means of a gear assembly; moving the firing action forward by disengaging the gear assembly from the firing action and utilizing a spring to drive the firing action to move forward; controlling the movement of the gear assembly by means of a movement control assembly such that the gear assembly cannot mesh with the firing action; re-meshing the gear assembly with the firing action wherein after the firing action moves forward to a locating position, the gear assembly can mesh with the firing action again by the operation of the firing action and the movement control assembly; and repeating the step of moving the firing action backward to the step of re-meshing.

Abstract: A transmission method and a transmission mechanism for a toy gun are provided. The method comprises the steps of: moving a firing action backward by means of a gear assembly; moving the firing action forward by disengaging the gear assembly from the firing action and utilizing a spring to drive the firing action to move forward; controlling the movement of the gear assembly by means of a movement control assembly such that the gear assembly cannot mesh with the firing action; re-meshing the gear assembly with the firing action wherein after the firing action moves forward to a locating position, the gear assembly can mesh with the firing action again by the operation of the firing action and the movement control assembly; and repeating the step of moving the firing action backward to the step of re-meshing.

Abstract: The present invention relates to a toy gun mechanism with a sliding bolt assembly that closely resembles a real gun when the toy gun is fired and comprises a housing, a motor, a gear assembly, a bolt assembly, a trigger assembly and a latch. The gear assembly is mounted in the housing and is connected to and driven by the motor. The bolt assembly is mounted slidably in the housing and is selectively moved to a cocked position by the gear assembly. The trigger assembly releases the bolt assembly and drives air from the bolt assembly as the bolt assembly moves forward.

Abstract: The present invention relates to a toy gun mechanism with a sliding bolt assembly that closely resembles a real gun when the toy gun is fired and comprises a housing, a motor, a gear assembly, a bolt assembly, a trigger assembly and a latch. The gear assembly is mounted in the housing and is connected to and driven by the motor. The bolt assembly is mounted slidably in the housing and is selectively moved to a cocked position by the gear assembly. The trigger assembly releases the bolt assembly and drives air from the bolt assembly as the bolt assembly moves forward.

Abstract: A gun attachment mounting structure is disclosed to include a base member, which has a coupling groove for coupling to a top coupling bar of the gun body of a gun and locating holes extending from two opposite sides of said coupling portion, retaining members mounted in the base member, each retaining member having two springy clamping arms respectively inserted through the locating holes for clamping the top coupling bar to secure the base member to the gun body, and swivel locking control members respectively mounted in the base member and rotatable to lock the base member to the top coupling bar of the gun body after coupling of the coupling groove to the top coupling bar.

Abstract: A toy gun is provided with a plurality of protrusions formed on a rear end's circumference of its top gun-body. The protrusions are inserted and fastened to a rear end's inner edge of a bottom gun-body of the toy gun to heighten the combination stability of the top and the bottom gun-body, so that the shooting accuracy of the toy gun can be significantly improved and an accidental falling of the toy gun to break or damage the protrusion at the rear end's bottom edge of the top gun-body can be prevented.

Abstract: A mouse assembly includes a base having an open top for a frame received in the open top of the base. The frame has a protrusion in which a trace sphere is rotatably engaged A reflection board is received in the protrusion and located below the trace sphere. A circuit board with a limit switch is connected to an underside of the frame and located below the reflection board The limited is activated by hitting the under board of the base when pushing the trace sphere. A flexible water-proof plate is mounted to a top of the flame and has an aperture with which the trace sphere is engaged.