Abstract: A p-GaN high-electron-mobility transistor (HEMT) includes a buffer layer stacked on a substrate, a channel layer stacked on the buffer layer, a supply layer stacked on the channel layer, a doped layer stacked on the supply layer, and a hydrogen barrier layer covering the supply layer and the doped layer. A source and a drain are electrically connected to the channel layer and the supply layer, respectively. A gate is located on the doped layer. The hydrogen barrier layer is doped with fluorine.

Abstract: A vertical mouse includes a base and a mouse body. The base has a vertical receiving groove. The mouse body includes a housing. The mouse body is detachably received in the vertical receiving groove, the housing leans against the vertical receiving groove, and the mouse body has a first operation mode and a second operation mode. Under the first operation mode, the mouse body is received in the base with a first orientation, and under the second operation mode, the mouse body is received in the base with a second orientation.

Abstract: A support stand includes a base and a support bracket. The support bracket has a first side and a second side opposite to each other. The first side is rotatably connected to the base. The support bracket further has a slot extending from the second side toward the first side.

Abstract: An ergonomic keyboard is disclosed. The ergonomic keyboard includes a first key area, a second key area and an adjustment module. The adjustment module is pivotally connected between the first key area and the second key area. The adjustment module includes a first bearing, a second bearing, a rotary knob, an adjustment screw and a supporting base. The first and second bearings are pivotally connected to the first and second key areas respectively such that they allow adjustment of an included angle. The adjusting screw is fixedly connected to the rotary knob and can be rotated together with the rotary knob. The supporting base is supported on a plane, and an internal thread of the supporting base and the adjusting screw are screwed with each other. Thus, an inclination angle of the first and second key areas can be adjusted by the rotary knob.

Abstract: An ergonomic keyboard is disclosed. The ergonomic keyboard includes a first key area, a second key area and an adjustment module. The adjustment module is pivotally connected between the first key area and the second key area. The adjustment module includes a first hearing, a second bearing, a rotary knob, an adjustment screw and a supporting base. The first and second bearings are pivotally connected to the first and second key areas respectively such that they allow adjustment of an included angle. The adjusting screw is fixedly connected to the rotary knob and can be rotated together with the rotary knob. The support base is supported on a plane, and an internal thread of the supporting base and the adjusting screw are screwed with each other. Thus, an inclination angle of the first and second key areas can be adjusted by the rotary knob.

Abstract: A mouse device includes an operation body and a frame. The frame is engaged with the operation body and has a hollow portion. The hollow portion penetrates the mouse device from a side of the mouse device to another side of the mouse device. The frame includes two finger resting portions and a palm resting portion. The two finger resting portions are respectively located at opposite sides of the operation body. The palm resting portion is connected between the two finger resting portions. The hollow portion is formed among the two finger resting portions and the palm resting portion. In a forward-backward axial direction of the mouse device, the frame is located behind the operation body.

Abstract: A protective case includes a housing, a base, and a connecting piece. A supporting groove is openly formed on one surface of the base for engaging a lateral edge of the housing. The connecting piece is soft and flexible. The connecting piece has two opposite end portions and a middle section disposed between the two end portions. The two end portions are connected to the housing and the base respectively, and the middle section is disposed in a removably detachable manner. Therefore, the supporting groove supports the housing to stand on the base, and the connecting piece can fix the housing to prevent toppling.

Abstract: A covering structure including a bottom covering layer, a top covering layer, and a thermoplastic material layer is disclosed. The thermoplastic material layer is laminated between the bottom covering layer and the top covering layer. The thermoplastic material layer includes a first thermoplastic material layer part and a second thermoplastic material layer part that are connected to each other. The first thermoplastic material layer part has a first thickness. The second thermoplastic material layer part has a second thickness. The first thickness is larger than the thickness of the top covering layer. The first thickness is 4˜7 times of the second thickness. The disclosure further discloses an input device using the covering structure and a manufacturing method of the covering structure.

Abstract: A protective case includes a housing, a base, and a connecting piece. A supporting groove is openly formed on one surface of the base for engaging a lateral edge of the housing. The connecting piece is soft and flexible. The connecting piece has two opposite end portions and a middle section disposed between the two end portions. The two end portions are connected to the housing and the base respectively, and the middle section is disposed in a removably detachable manner. Therefore, the supporting groove supports the housing to stand on the base, and the connecting piece can fix the housing to prevent toppling.

Abstract: A covering structure including a bottom covering layer, a top covering layer, and a thermoplastic material layer is disclosed. The thermoplastic material layer is laminated between the bottom covering layer and the top covering layer. The thermoplastic material layer includes a first thermoplastic material layer part and a second thermoplastic material layer part that are connected to each other. The first thermoplastic material layer part has a first thickness. The second thermoplastic material layer part has a second thickness. The first thickness is larger than the thickness of the top covering layer. The first thickness is 4˜7 times of the second thickness. The disclosure further discloses an input device using the covering structure and a manufacturing method of the covering structure.