摘要:
An apparatus for testing a semiconductor module may include a test shelf, test modules and a transfer robot. The test shelf may include multilayered test cells in which a plurality of test cells may be arranged in each of a plurality of layers. The test modules may be each provided in the test cells. The transfer robot may insert the semiconductor module into the test module. The transfer robot may separate the semiconductor module from the test module.
摘要:
A hermetic compressor uses an oil pump that includes a trochoid gear. Therefore, regardless of the rotation speed of a driving motor of the compressor, a sufficient amount of oil can always be pumped. The oil pump unit may include a plurality of suction holes with openings at different heights. If the refrigerant and oil separate, at least one of the openings will admit oil into the oil pump unit, to ensure lubricating oil is supplied to the moving parts of the compressor.
摘要:
A hermetic compressor uses an oil pump that includes a trochoid gear. Therefore, regardless of the rotation speed of a driving motor of the compressor, a sufficient amount of oil can always be pumped. The oil pump unit may include a plurality of suction holes with openings at different heights. If the refrigerant and oil separate, at least one of the openings will admit oil into the oil pump unit, to ensure lubricating oil is supplied to the moving parts of the compressor.
摘要:
The present invention discloses a laundry amount sensing apparatus and method for a washing machine. The laundry amount sensing apparatus for the washing machine in which a tub is inclined at a predetermined angle in a non-load state includes a control unit that senses an inclination of the tub, determines a laundry amount corresponding to the sensed inclination of the tub, and controls a spin-drying speed according to the selected laundry amount.
摘要:
An optical recording medium is disclosed herein which comprises an antistatic and scratch-resistant metal oxide layer on the light incident side of a transparent substrate. The metal oxide layer has a light transmittance high enough to transmit at least a portion of the light beam therethrough and a sheet resistivity low enough to suppress the substrate from getting electrostatic. Such a metal oxide layer can be deposited either directly, or through an interfence layer, on the substrate with a thickness of 100 to 1,000 Angstrom.
摘要:
A conductivity detector includes a flow channel, an electrode arrangement, and a detector. The flow channel has a tube shape with a channel diameter through which a solution including ion components flows. The electrode arrangement is on the flow channel and includes at least an anode and at least a cathode. The anode and cathode are spaced apart by an electrode gap less than or equal to the channel diameter. The detector is connected to the electrode arrangement to detect electrical conductivity of the ion components.
摘要:
A clamping apparatus capable of clamping various semiconductor substrates is provided. The clamping apparatus includes includes a main body, and a support plate partially coupled to the main body. The support plate is movable vertically. In addition, the clamping apparatus further includes a fixed gripper coupled and fixed onto the main body and a movable gripper disposed on the main body. The movable gripper is movable horizontally.
摘要:
Provided are a sing-unit integrated transceiver having a pump source and a transceiver module using the transceiver. The single-unit integrated transceiver includes: an optical transmitter converting an input electric signal into a downstream optical signal; an optical receiver converting a received upstream optical signal into an electric signal; the pump source amplifying the downstream or upstream optical signal using a gain medium positioned in an optical transmission line to amplify an output optical signal; a convergence unit arranging or converging the downstream and upstream optical signals to/from the optical transmission line; and a multiplexing and/or a demultiplexing filter, the multiplexing filter positioned on an optical path between the optical transmitter/pump source and the convergence unit, and multiplexing the downstream optical signal and the amplified optical signal to pass to the convergence unit, the demultiplexing filter positioned on an optical path between the convergence unit and the optical receiver and demultiplexing the upstream optical signal to pass to the optical receiver.
摘要:
Disclosed is a carrier tape manufactured by using polymer materials comprising polypropylene, polystyrene and a styrene-butadiene copolymer. The carrier tape has excellent impact strength, excellent dimensional stability and low surface energy, and thus allows easy detachment of materials to be transported.
摘要:
Provided are an optical output power control method that provides optical communication without harming the human body even when a transmission line is cut or no optical network unit (ONU) accesses a communication system, and a passive optical network (PON) system using the method. In the method, an optical signal having a predetermined period is transmitted when an optical communication system is in an abnormal state, wherein the predetermined period includes a laser-on time interval in which the optical signal has a normal power level and a laser-off time interval in which the optical signal is off or has a power level lower than the normal power level, so that the optical communication system performs optical communication without harming the human body even during the abnormal state.