摘要:
A DC brush-free motor or fan rotated by an outer rotor having an annular ferrite magnet with grain alignment on its inner periphery, the main body of the motor or fan is composed of a base, a stator and an outer rotor surrounding the stator; the outer rotor includes a rotating disk and the annular ferrite magnet fixed on an inner periphery of the rotating disk, the annular ferrite magnet is a multipolar anisotropic permanent magnet, the main body of the annular magnet is divided into a magnetic conductive outer layer which is not magnetic and a magnetic inner layer, fluxes of the inner layer turn back when they pass the outer layer to thereby shorten the magnetic loops, and to increase magnetic force and the effect of magnetic energy accumulation. When the motor runs, the outer rotor drives a rotating axle (on the base) extended out of a housing to put out power and to be a power output axle of the motor. As to the fan, the outer rotor is provided on its outer portion with fan blades, an effect of air blowing can be achieved by rotating the fan blades.
摘要:
An EEPROM includes a substrate, a first semiconductor layer and a second semiconductor layer formed on the substrate. The first semiconductor layer is isolated from the second semiconductor layer by a trench. A first source and a first drain are located at two opposing sides of the first semiconductor layer. A first dielectric layer is formed on the first semiconductor layer, and a first floating gate is formed on the first dielectric layer. A second source and a second drain are located at two opposing sides of the second semiconductor layer. A second dielectric layer is formed on the second semiconductor layer, and a second floating gate is formed on the second dielectric layer. The first floating gate and the second floating gate are electrically connected.
摘要:
A thin film transistor is characterized by having an island-in structure having a semiconductor layer with a channel region, a bottom heavily-doped semiconductor layer, and a top heavily-doped semiconductor layer. The bottom heavily-doped semiconductor layer is positioned on two opposite sides of the surface of the semiconductor layer beyond the channel region. The top heavily-doped semiconductor layer, positioned on the bottom heavily-doped semiconductor layer, covers two opposite side walls of the bottom heavily-doped semiconductor layer and the semiconductor layer so that current leakage from the drain electrode to the source electrode is prevented.
摘要:
A method of manufacturing a floating gate is provided. The method includes the steps of forming a tunneling layer on a substrate, and forming a film layer containing a semiconductor component on the tunneling layer. The film layer consists of a semiconductor film or nano-dots.
摘要:
Disclosed is a pressure gauge device featuring setting for automatic supply and termination of pressure, which includes a pressure gauge, a rotary knob, a rotary knob conductive piece, a rotary knob indicator, and a control device. The pressure gauge includes a hand sweep zone and an electrically conductive indication hand is arranged in the hand sweep zone. The pressure gauge includes a resetting conductive piece. The rotary knob is coupled to the rotary knob conductive piece and the rotary knob indicator and is set outside an outer circumference of the hand sweep zone of the pressure gauge. The resetting conductive piece and the rotary knob indicator are each set in the hand sweep zone and located on a rotation path of the indication hand. The resetting conductive piece and the rotary knob indicator are each in electrical connection with the control device.
摘要:
The air compressor contains a casing member, a driving member, and a cylinder member. The casing member has a first accommodation section, a second accommodation section, and a connection section connecting the first and second accommodation sections. The first accommodation section has a number of first inlets and first outlets. The driving member is located between the first and second accommodation sections, and is adjacent to the first outlets. The cylinder member is located both in the second accommodation section and the connection section, and is adjacent to the second outlets. The outside cool air is drawn into the casing member through the first inlets. A portion of the drawn air is released through the first outlets, forming a first flow path for cooling down the driving member. Another portion is released through the second outlets, forming a second flow path for cooling down the cylinder member.
摘要:
A display panel and its uses are provided. The display panel has several photo-sensors for detecting values of the visible light spectrum of the environmental light and whole light spectrum of the environmental light to obtain a value of the invisible light spectrum. The photo-sensor can be incorporated into an electro-optical device with a display panel.
摘要:
A display device including a liquid crystal display (LCD) panel, a backlight module, and a photo-sensing device is provided. The backlight module is disposed below the LCD panel and is suitable for providing a light source. The photo-sensing device is built in the LCD panel and includes a plurality of photo-sensors having different illumination sensing capabilities. The backlight module modulates the output intensity of the light source according to the sensed result of one of the photo-sensors. Thereby, the display device can precisely modulate the intensity of the back light according to the intensity of ambient light so as to improve the contrast ratio and to reduce the power consumption.