Abstract: A semiconductor device includes a plurality of channel layers vertically separated from one another. The semiconductor device also includes an active gate structure comprising a lower portion and an upper portion. The lower portion wraps around each of the plurality of channel layers. The semiconductor device further includes a gate spacer extending along a sidewall of the upper portion of the active gate structure. The gate spacer has a bottom surface. Moreover, a dummy gate dielectric layer is disposed between the gate spacer and a topmost channel layer of plurality of channel layers. The dummy gate dielectric layer is in contact with a top surface of the topmost channel layer, the bottom surface of the gate spacer, and the sidewall of the gate structure.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A safety brake light structure capable of displaying traveling conditions and speed of a car includes a display panel formed by a face panel formed by multiple color light emitting diodes, high-luminosity L.E.D., and a numeric display. The display panel is connected to a computer device. The computer device is connected to an accelerator pedal shift, a reversing shift, a braking shift and turn signal lights. The display panel is mounted at the front and rear windows of the car, whereby different colors of the face panel and numbers are used to indicate different traveling conditions and speed of the car so as to enhance safety.