|Patent application number
|MULTI-CHIP PACKAGE WITH IMPROVED SIGNAL TRANSMISSION - Provided is an MCP including a plurality chips stacked therein. Each of the chips includes a plurality of inductor pads configured to transmit power or signals, and at both sides of a reference inductor pad, a first and a second inductor pads are formed to generate magnetic fluxes in different directions from each other.
|SEMICONDUCTOR MEMORY CHIP AND INTEGRATED CIRCUIT - A semiconductor memory chip includes: a driving voltage reception unit configured to receive a power supply voltage and a ground voltage; a first data driving unit configured to be supplied with the power supply voltage and the ground voltage, and drive first data to output the driven first data through a first data line; a second data driving unit configured to be supplied with the power supply voltage and the ground voltage, and drive second data to output the driven second data through a second data line; and a MOS transistor coupled between the first data line and the second data line.
|INTERNAL VOLTAGE GENERATION CIRCUIT AND METHOD - An internal voltage generation method includes the steps of: setting first to third sections by using a reference voltage; determining to which section an internal voltage level corresponds, among the first to third sections; and generating the internal voltage by controlling a voltage pumping amount according to a section corresponding to the internal voltage level.
|POWER METAL MESH AND SEMICONDUCTOR MEMORY DEVICE AND METHOD INCLUDING THE SAME - A power metal mesh and a semiconductor memory device including the same are provided. As the power metal mesh configured to reduce noise coupling generated between adjacent chips disposed on an interposer, a band stop filter unit including an inductor and a capacitor coupled in parallel is disposed between the adjacent chips to effectively reduce the noise coupling of a specific frequency band generated between the adjacent chips.
|METHOD FOR REDUCING OUTPUT DATA NOISE OF SEMICONDUCTOR APPARATUS AND SEMICONDUCTOR APPARATUS IMPLEMENTING THE SAME - Provided is a semiconductor apparatus which includes a plurality of output buffers configured to connect a plurality of power sources, and a data noise measuring unit configured to fix an output data of a selected output buffer among the plurality of output buffers to have a specific level, measure a noise of the output data using a capacitance and control a slew rate of the plurality of output buffers based on the noise.
|Patent application number
|COMPRESSOR AND OIL SEPARATION DEVICE THEREFOR - A compressor and oil separation device therefore are provided. The oil separation device is integrated with a compressor and includes a first case having a refrigerant inlet into which a refrigerant mixed with oil is sucked and an oil recollecting member through which oil separated from the refrigerant flows, and a second case positioned outside of the first case and having a refrigerant outlet through which refrigerant separated from an oil is discharged. With this constructions, a pipe connecting the compressor and a separate oil separation device is not required, thereby reducing fabrication costs and facilitating installation.
|COMPRESSOR - A compressor is provided that includes a casing defining an inner space, a suction pipe connected to the casing, a discharge pipe connected to the casing, a motor located at the inner space of the casing, a compressing unit driven by the motor to compress a refrigerant, an oil separating unit configured to separate oil from the refrigerant discharged from the compressing unit, and an oil recollecting unit configured to pump the oil separated by the oil separating unit and recollect the separated oil into the compressor main body.
|HERMETIC COMPRESSOR AND REFRIGERATION CYCLE DEVICE HAVING THE SAME - A hermetic compressor and a refrigeration cycle device having the same are provided. An oil separator is installed either outside or inside of a casing to separate oil from a discharged refrigerant and an oil pump driven by a driving force of a motor is used to recollect the oil separated in the oil separator, whereby the separation between oil and refrigerant can effectively be performed and also a fabricating cost can be reduced. Also, an introduction of the separated refrigerant back into the compressor can be prevented so as to improve a cooling capability of the refrigeration cycle device. In addition, the oil pump is driven by the driving force of the motor, resulting in a simple configuration of the compressor and a reduction of a fabricating cost of the compressor.
|SCROLL COMPRESSOR AND REFRIGERATING MACHINE HAVING THE SAME - A scroll compressor and a refrigerating machine including the scroll compressor are provided. An oil supply channel may be formed in a fixed scroll of the compressor so as to provide for communication between a back pressure chamber and compression chambers formed between the fixed scroll and an orbiting scroll. The oil supply channel enables oil to be smoothly introduced from the back pressure chamber into each compression chamber, so that frictional losses and refrigerant leakage in the compression chambers may be effectively prevented, and efficiency of the compressor and the refrigerating machine including the compressor may be enhanced.
|SCROLL COMPRESSOR AND REFRIGERATING MACHINE HAVING THE SAME - A scroll compressor and a refrigerating machine including the same are provided. In the scroll compressor, an oil supply hole formed in an orbiting scroll guides oil from a space between a frame and the orbiting scroll to a space between a fixed scroll and the orbiting scroll, and an oil supply groove formed at the fixed scroll maintains communication with the oil supply hole, thereby rapidly supplying oil to a bearing surface between the fixed scroll and the orbiting scroll before the oil is introduced into a back pressure chamber. This enhances compressor efficiency by effectively preventing frictional losses and refrigerant leakage in such a compressor, and enhances energy efficiency for a refrigerating machine using such a compressor.
|COMPRESSOR AND REFRIGERATING APPARATUS HAVING THE SAME - A scroll compressor and a refrigerating apparatus having the same are provided. In the scroll compressor, an angle formed between an injection passage that guides refrigerant from a condenser back into an intermediate compression chamber and a back pressure passage that guides refrigerant from the intermediate compression chamber into a back pressure chamber may be designed so as to prevent leakage of refrigerant from the intermediate compression chamber into the back pressure chamber. This allows an appropriate pressure to be maintained the back pressure chamber, and increases an amount of refrigerant supplied into the compression chambers, thereby improving performance of the scroll compressor and a refrigerating apparatus in which such a scroll compressor is installed.
|SCROLL COMPRESSOR - Provided is a scroll compressor having an improved structure in which reliability of a compression portion can be enhanced. The scroll compressor includes a compression unit that compresses a refrigerant introduced into a body, wherein the compression unit may include: a fixed scroll fixed into the body and having an ejection hole and a fixed wrap placed at an outside of the ejection hole; and an orbiting scroll orbiting with respect to the fixed scroll and having an orbiting wrap that constitutes a compression chamber together with the fixed wrap, and wherein the orbiting wrap may include: an outer contact portion formed at an outside surface of the orbiting wrap and being adjacent to the ejection hole; and an inner contact portion formed at an inside surface of the orbiting wrap, being adjacent to the ejection hole and connected to the outer contact portion, and the compression chamber includes a first compression chamber formed when the outer contact portion contacts a first position of an inside surface of the fixed wrap at an ejection starting time of the refrigerant, and the outer contact portion is connected to the inner contact portion along a circumference of a first center circle formed to contact the first position at the ejection starting time of the refrigerant, and a center of the first center circle is placed on a normal line of the first position.