Abstract: A semiconductor device includes a plurality of nanostructures extending in a first direction above a semiconductor substrate and arranged in a second direction substantially perpendicular to the first direction and a gate structure extending in a third direction perpendicular to both the first and second directions, the gate structure surrounding each of the plurality of nano structures. Each of the plurality of nanostructures has an outer region having a composition different from a composition of an inner region of each of the plurality of the nanostructures. The gate structure includes a plurality of high-k gate dielectric layers respectively surrounding the plurality of nanostructures, a work function layer surrounding each of the plurality of high-k gate dielectric layers and a fill metal layer surrounding the work function layer.

Abstract: A method of fabricating a device includes providing a fin having a stack of epitaxial layers including a plurality of semiconductor channel layers interposed by a plurality of dummy layers. A source/drain etch process is performed to remove portions of the stack of epitaxial layers in source/drain regions to form trenches that expose lateral surfaces of the stack of epitaxial layers. A dummy layer recess process is performed to laterally etch the plurality of dummy layers to form recesses along sidewalls of the trenches. An inner spacer material is deposited along sidewalls of the trenches and within the recesses. An inner spacer etch-back process is performed to remove the inner spacer material from the sidewalls of the trenches and to remove a portion of the inner spacer material from within the recesses to form inner spacers having a dish-like region along lateral surfaces of the inner spacers.

Abstract: A semiconductor device and a method of forming the same are provided. In an embodiment, an exemplary semiconductor device includes a vertical stack of channel members disposed over a substrate, a gate structure wrapping around each channel member of the vertical stack of channel members, and a source/drain feature disposed over the substrate and coupled to the vertical stack of channel members. The source/drain feature is spaced apart from a sidewall of the gate structure by an air gap and a dielectric layer, and the air gap extends into the source/drain feature.

Abstract: A power switch circuit with current sensing is disclosed. The power switch circuit is coupled between an input voltage and an output terminal. The power switch circuit includes a power switch, a first sensing switch, an adjusting circuit and a second sensing switch. The power switch is coupled to the input voltage. The first sensing switch is coupled in series between the power switch and the output terminal. There is a first node between the first sensing switch and the power switch. The adjusting circuit is coupled to the first node. The second sensing switch is coupled between the adjusting circuit and the output terminal. A control terminal of the power switch is coupled to a first control voltage. Control terminals of the first sensing switch and the second sensing switch are coupled to a second control voltage. The second control voltage is different from the first control voltage.

Abstract: The application relates to a capacitance sensing circuit, which samples and holds a reference signal to generate an input reference signal, hereby, an input signal is generated to a sensing circuit. Thereby, the sensing circuit generates an output signal according to the input signal and a sensing signal, for the capacitance sensing.

Abstract: A speaker with a hidden folding ring includes a basin frame, a magnetic circuit system mounted on the basin frame, a voice coil disposed in a magnetic gap of the magnetic circuit system and a diaphragm. The diaphragm is of a concave structure, and an outer edge end of the diaphragm is connected to an inner bracket of the basin frame through a folding ring. The folding ring is located below the diaphragm, so that a cavity formed between the folding ring and the basin frame. An inner peripheral end of the diaphragm engaged to the voice coil. The present invention effectively increases the radiation area of the diaphragm, and obtains a higher SPL than the existing speaker of the same size, thereby improving the acoustic performance of the speaker.

Abstract: A method of fabricating a dental restoration is provided that includes the initial step of providing a powder of a dental material. An amount of a binder is then selectively deposited onto the powder of the dental material to produce an unfinished layer of the dental material. Multiple layers of the dental material are then produced by continually providing a powder of dental material and selectively depositing an amount of a binder until a three-dimensional unfinished model is produced. The unfinished model is then separated from an amount of unaffected powder, and is sintered to produce a three-dimensional dental restoration having a functionally-graded structure.

Abstract: Described herein are multi-layered windows for use in chemical-mechanical planarization (CMP) systems and CMP processes. The multi-layered windows of the present disclosure include a transparent structural layer and a hydrophilic surfactant applied to at least a portion of at least one surface of the transparent structural layer. Such multi-layered windows may be in the polishing pad, the platen, or both.

Abstract: A moving-coil loudspeak includes a vibrating diaphragm, a suspension, a voice coil, a magnetic circuit, and a support. The suspension includes a surround and a first spider. One side of the surround is connected to an outer surface of the vibrating diaphragm. The first spider vertically stands below a connection between the surround and the vibrating diaphragm, and one side of the first spider is connected to an inner surface of the vibrating diaphragm. The voice coil is located below the center of the vibrating diaphragm. The magnetic circuit is located below the voice coil, where a coil on the voice coil is disposed at a central position of a magnetic gap. After the voice coil is powered on, a generated magnetic induction force drives the voice coil to vibrate and produce a sound by using the vibrating diaphragm. The support supports the magnetic circuit.

Abstract: The present invention provides a speaker with a hidden folding ring comprising a basin frame, a magnetic circuit system mounted on the basin frame, a voice coil disposed in a magnetic gap of the magnetic circuit system and a diaphragm. The diaphragm is of a concave structure, and an outer edge end of the diaphragm is connected to an inner bracket of the basin frame through a folding ring. The folding ring is located inside the diaphragm, so that a cavity is formed between the folding ring and the basin frame. An inner peripheral end of the diaphragm is engaged to the voice coil. The present invention effectively increases the radiation area of the diaphragm, and obtains a higher SPL than the existing speaker of the same size, thereby improving the acoustic performance of the speaker.

Abstract: A tool bit holder for connecting a rotary tool to a rotary tool driver. The tool bit holder including a body having a driver end configured to connect to a rotary tool driver and a tool end, a tool retainer bore, and a tool retainer movably received within the tool retainer bore and movable between an engaged position and a retracted position. The tool bit holder further includes an actuator sleeve, a sleeve spring for urging the actuator sleeve towards a first position, a plunger, and a plunger spring urging the plunger towards a loading position. A tool bit received in a tool receiving cavity pushes the plunger to a loaded position, and in the loading position the plunger extends over the tool retainer bore to engage the tool retainer and urge the tool retainer towards the retracted position.

Abstract: A method for managing a surveillance system includes at least one camera equipped with capability of capturing direction adjustment, such as a Pan-Tilt-Zoom (PTZ) camera. The method includes the steps of: outputting a panoramic map to a display module of the surveillance system for being displayed on the display module; according to at least one user input of a user of the surveillance system, labeling a target patrol route of the surveillance system on the panoramic map correspondingly for the user to confirm the target patrol route; and applying at least one configuration corresponding to the target patrol route to the camera to cause capturing direction adjustment operations of the camera to correspond to the target patrol route. The panoramic map may include at least one multi-directional combination picture corresponding to the camera.

Abstract: A moving-coil loudspeak includes a vibrating diaphragm, a suspension, a voice coil, a magnetic circuit, and a support. The suspension includes a surround and a first spider. One side of the surround is connected to an outer surface of the vibrating diaphragm. The first spider vertically stands below a connection between the surround and the vibrating diaphragm, and one side of the first spider is connected to an inner surface of the vibrating diaphragm. The voice coil is located below the center of the vibrating diaphragm. The magnetic circuit is located below the voice coil, where a coil on the voice coil is disposed at a central position of a magnetic gap. After the voice coil is powered on, a generated magnetic induction force drives the voice coil to vibrate and produce a sound by using the vibrating diaphragm. The support supports the magnetic circuit.

Abstract: Methods of fabricating dental prostheses are provided that include the steps of providing a powder of a dental material, and then selectively melting the powder of the dental material to produce a functionally graded layer of the dental material. Additional layers of functionally graded dental material are then built on top of the initial layer of dental material to thereby produce a three-dimensional dental prosthesis having a functionally graded structure and a desired physical geometry. Dental prostheses produced by the foregoing methods are also provided.

Abstract: A tool bit holder for connecting a rotary tool to a rotary tool driver. The tool bit holder including a body having a driver end configured to connect to a rotary tool driver and a tool end, a tool retainer bore, and a tool retainer movably received within the tool retainer bore and movable between an engaged position and a retracted position. The tool bit holder further includes an actuator sleeve, a sleeve spring for urging the actuator sleeve towards a first position, a plunger, and a plunger spring urging the plunger towards a loading position. A tool bit received in a tool receiving cavity pushes the plunger to a loaded position, and in the loading position the plunger extends over the tool retainer bore to engage the tool retainer and urge the tool retainer towards the retracted position.

Abstract: An optical device includes a diffusion film including a diffusion film and a condensing film. The diffusion film includes a diffusion layer that exhibits adhesive property and that has a light-incident surface and a light-emitting surface. The light-emitting surface is disposed oppositely of the light-incident surface and having a first microstructure. The condensing film includes a light-transmissive base layer that is adhered onto the light-emitting surface, and a prism layer provided on the light-transmissive base layer opposite to the diffusion film.

Abstract: A method of fabricating a dental restoration is provided that includes the initial step of providing a powder of a dental material. An amount of a binder is then selectively deposited onto the powder of the dental material to produce an unfinished layer of the dental material. Multiple layers of the dental material are then produced by continually providing a powder of dental material and selectively depositing an amount of a binder until a three-dimensional unfinished model is produced. The unfinished model is then separated from an amount of unaffected powder, and is sintered to produce a three-dimensional dental restoration having a functionally-graded structure.

Abstract: The present invention provides a membrane reaction apparatus for recovering heat of reaction, which includes a membrane reactor. The said membrane reactor includes a reaction pipeline, a membrane and a sweep pipeline. The reaction pipeline has a reaction space, and an exothermic reaction occurs therein, which generates product gas and heat of reaction. Part of the product gas penetrates through the membrane around the reaction space and enters into the sweep pipeline. Sweeping gas enters into the sweep pipeline and carries the product gas and the heat of reaction away. It is feasible to wrap the product gas around the sweep pipeline, for enhancing the heat transfer from the product gas to the sweeping gas. The heat of reaction brought by the sweeping gas can be further released in a heat exchanger, so that the heat of reaction is available to be recovered and used for other endothermic processes.

Abstract: A wearable electronic device includes a housing, an electronic module received in the housing, and a cover assembly. The cover assembly includes a cover and a rotating member. A first end of the rotating member is rotatably connected to the cover. A second end of the rotating member is detachably latched to the cover. When the rotating member is latched to the cover, the rotating member resists against the housing.