Abstract:
A motor having a structure configured to reduce magnetic resistance between a rotor and a stator, a method for manufacturing the motor, and a washing machine using the motor are disclosed. The motor includes a rotor, and a stator co-operating with the rotor. The stator includes a main core and an auxiliary core. The main core includes a base and a plurality of teeth protruding from the base. The auxiliary core is structured to prevent the occurrence of magnetic resistance from being generated from spaces, defined between adjacent teeth, when the stator co-operates with the rotor.
Abstract:
Provided are a chip, a chip stack, and a method of manufacturing the same. A plurality of chips which each include: at least one pad formed on a wafer; and a metal layer which protrudes up to a predetermined thickness from the bottom of the wafer and is formed in a via hole exposing the bottom of the pad are stacked such that the pad and the metal layer of adjacent chips are bonded. This leads to a simplified manufacturing process, high chip performance and a small footprint for a chip stack.
Abstract:
The operating apparatuses of a washing machine and the methods on that are renovated. The afore-mentioned washing machine is including: a memory that the reference signals are saved in order to operate a motor in a best condition according to each of the condition of the torque and noise; a control unit which generates the switching signals as calling the reference signals which are different each other according to the strokes of a washing machine, and comparing with the carrier signals; an inverter which generates a motor operating signal as an external power is switched by a switching signal; a motor which is rotated by a motor operating signal; and a revolving screen of a washing machine which is operated by a motor.
Abstract:
A washing machine is described. The washing machine described comprises; a tub, a drum placed the tub therein, a permanent magnet placed on the drum and a stator interacting with the permanent magnet to generate a rotary power to the drum.
Abstract:
Provided is a method of fabricating a heterojunction bipolar transistor (HBT). The method includes: sequentially depositing a sub-collector layer, a collector layer, a base layer, an emitter layer, and an emitter capping layer on a substrate; forming an emitter electrode on the emitter capping layer; forming a mesa type emitter to expose the base layer by sequentially etching the emitter capping layer and the emitter layer using the emitter electrode as an etch mask in vertical and negative-sloped directions to the substrate, respectively; and forming a base electrode on the exposed base layer using the emitter electrode as a mask in self-alignment with the emitter electrode. In this method, a distance between the mesa type emitter and the base electrode can be minimized and reproducibly controlled. Also, a self-aligned device with an excellent high-frequency characteristic can be embodied.
Abstract:
A semiconductor package and a method of producing the same has a substrate. A first semiconductor chip is coupled to a surface of the substrate. The first semiconductor chip has a first and second surfaces which are substantially flat in nature. An adhesive layer is coupled to the second surface of the first semiconductor chip. A second semiconductor chip having first and second surfaces which are substantially flat in nature is further provided. An insulator is coupled to the first surface of the second semiconductor chip for preventing shorting of wirebonds. The second semiconductor chip is coupled to the adhesive layer by the insulator coupled to the first surface thereof.
Abstract:
A washing machine includes a washing shaft that extends through an outer tub, and is coupled to an inner tub and a double rotor motor coupled to the washing shaft. The double rotor motor has two rotors drivable independently from each other and wound independently from each other.
Abstract:
An integrated circuit with a first plurality of transistors formed on a first wafer and second plurality of transistors formed on a second wafer. At least a substantial majority of the transistor of the first transistor are of a first conductivity type and at least a substantial majority of the transistors of the second plurality are of a second conductivity type. After wafers are bonded together, a portion of the second wafer is removed wherein the strain of the channels of the second plurality of transistors is more compressive than the strain of the channels of the first plurality of transistors.
Abstract:
Disclosed herein are a single-stage backlight inverter and a method for driving the same. The single-stage backlight inverter comprises a main oscillator for generating a predetermined triangle-wave oscillation signal, a predetermined clock signal and an inverted clock signal, and an output drive controller responsive to the triangle-wave oscillation signal, clock signal and inverted clock signal from the main oscillator and first and second reference voltages set therein. The second reference voltage has a level set to an intermediate level of the triangle-wave oscillation signal. The output drive controller is adapted to generate a first drive control signal and generate a second drive control signal. The inverter further comprises a first output unit for outputting a pair of first switching signals in response to the first drive control signal, and a second output unit for outputting a pair of second switching signals in response to the second drive control signal.
Abstract:
The present invention relates to a plasma display panel in which the time necessary for addressing is shortened, and a method and apparatus for driving the PDP. A plasma display panel according to a first embodiment of the present invention includes an upper substrate in which scan electrodes and sustain electrodes are formed, and a lower substrate in which an address electrode, a horizontal diaphragm and a vertical diaphragm are formed, wherein the horizontal diaphragms and the vertical diaphragms intersect one another to form a plurality of discharge cells, and the discharge cell includes a main discharge cell on which phosphors are coated, and a sub discharge cell on which magnesium oxide is coated. According to the first embodiment of the present invention, first horizontal diaphragms and second horizontal diaphragms are provided to form main discharge cells and sub discharge cells. A priming discharge is generated and an address discharge is generated within the sub discharge cells on which magnesium oxide is coated. An address discharge occurs rapidly.