Abstract: A method of fabricating a device includes providing a fin element in a device region and forming a dummy gate over the fin element. In some embodiments, the method further includes forming a source/drain feature within a source/drain region adjacent to the dummy gate. In some cases, the source/drain feature includes a bottom region and a top region contacting the bottom region at an interface interposing the top and bottom regions. In some embodiments, the method further includes performing a plurality of dopant implants into the source/drain feature. In some examples, the plurality of dopant implants includes implantation of a first dopant within the bottom region and implantation of a second dopant within the top region. In some embodiments, the first dopant has a first graded doping profile within the bottom region, and the second dopant has a second graded doping profile within the top region.

Abstract: A semiconductor memory device includes a first word line formed over a first active region. In some embodiments, a first metal line is disposed over and perpendicular to the first word line, where the first metal line is electrically connected to the first word line using a first conductive via, and where the first conductive via is disposed over the first active region. In some examples, the semiconductor memory device further includes a second metal line and a third metal line both parallel to the first metal line and disposed on opposing sides of the first metal line, where the second metal line is electrically connected to a source/drain region of the first active region using a second conductive via, and where the third metal line is electrically connected to the source/drain region of the first active region using a third conductive via.

Abstract: An apparatus for producing silicon carbide crystal is provided and includes a composite structure formed by a plurality of graphite layers and silicon carbide seed crystals, wherein a density or thickness of each layer of graphite is gradually adjusted to reduce a difference of a thermal expansion coefficient and Young's modulus between the graphite layers and silicon carbide. The composite structure can be stabilized on a top portion or an upper cover of a crucible made of graphite, thereby preventing the silicon carbide crystal from falling off.

Abstract: A directional signal device includes a battery-operated signal transmitter installed in a vehicle, the signal transmitter having a control circuit board adapted to transmit a directional signal wirelessly and formed of a power circuit, a direction selection circuit an encoder circuit, and a transmitting circuit, and a battery-operated signal receiver carried on the user, the signal receiver having a control circuit board formed of a power circuit, a receiving circuit, a decoder circuit, a comparator circuit, a light driving circuit, and a directional light emitting unit. The signal transmitter is operated by the user to wirelessly transmit a directional signal to the signal receiver, causing the directional light emitting unit of the signal receiver to flash, indicating a direction to follow.

Abstract: A safety hat having an alert function comprising a hat body, a battery, and a plurality of soft or hard light emitting strips, and a control switch. The hat body is like a shade. The soft light emitting strips are adhered on the surface and two lateral sides of the hat body. The battery is formed on the soft light emitting strips. One end of the control switch is connected to an electrode of the battery, and another end thereof is connected to the power supply end of the light emitting strip. By the action of the control switch, the soft light emitting strip lights up or extinguished. Thereby, a safety hat having an alert function is formed, which can be assembled by the user.

Abstract: An audio and video effect flight toy comprises a rod and a supporter. The supporter is connected to the rod. A groove is formed on the supporter. A slender rope winds around the supporter; and another end of the slender rope is tied with a drag handle. A disk has a round disk at a center, and at least one blade is formed at an outer ring of the round disk; while another end of each blade is connected to an outer ring circularly. A bottom of the round disk is protruded with a post. A circuit unit is installed on the round disk. The circuit unit is formed by a light emitting pieces and an audio element. The top of the round disk, connections of the round disk with each blade, and connections of each blade with the outer ring are installed with power joints for being installed with light emitting pieces.