摘要:
Semiconductor device manufacturing equipment has a vacuum system that enhances the fluency of the gas being discharged from a chamber of the equipment. The vacuum system has a vent line, and a throttle valve that includes a vent line opening and closing member oriented so that it is readily opened by a concentrated flow of gas in the vent line. The vacuum system may include a heating unit that heats the vent line through which the gas passes. Still further, a bend in the vent line upstream of the vent line opening and closing member may have a gently curved shape and/or may subtend an angle of less than 90°. As a result, the efficiency of the ventilation of the process chamber is improved, making it easier to control the pressure of the process chamber and minimizing the contamination of the throttle valve and the vent line.
摘要:
Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an external lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
摘要:
Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an internal lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.
摘要:
The disclosure relates to chips containing nucleic acid probes or primers and their use in methods to detect nucleic acid molecules of DNA viruses. The disclosure includes DNA chips with probes immobilized via a dendron-mediated linkage in contact with a thermocycler capable of automatically regulating the temperature, temperature cycle times, and number of temperature cycles of the chips to provide genetic diagnosis in one step.
摘要:
A fabrication method of thermoelectric materials using core-shell structured nano-particles and thermoelectric materials fabricated by the same are provided. The method includes preparing core-shell structured nano-particles having thermoelectric elements coated on the surface thereof (step 1); adding and mixing the prepared core-shell structured nano-particles of step 1, bismuth (Bi) salts, tellurium (Te) salts and a surfactant in a solvent (step 2); adding and dispersing a reducing agent in the mixture of step (step 3); and heating the mixture of step 3 in which reducing agent is added and dispersed (step 4). According to the present invention, thermoelectric materials, nano-phase is homogeneously dispersed inside of thermoelectric grain boundary, can be fabricated and if the fabricated materials are used after sintering and bulking, the thermoelectric materials are maintained in a state that the nano-particles remain in dispersed phase even after sintering.
摘要:
There is provided a light emitting device package including: a package body providing a chip mounting area and including first and second lead terminals; an LED chip mounted on the chip mounting area and electrically connected to the first and second lead terminals; a groove portion disposed around the LED chip in the chip mounting area; and a wavelength conversion portion formed of a resin containing a wavelength conversion material with which to enclose the LED chip and having an outer shape defined by the groove portion.
摘要:
A kimchi refrigerator and a control method thereof, in which salinity of kimchi introduced into the kimchi refrigerator is displayed and a storage temperature corresponding to the salinity is displayed so as to widen a user's range of selection of kimchi flavors and improve kimchi storage performance of the kimchi refrigerator. The control method includes measuring salinity of kimchi, determining a storage temperature based on the measured salinity, and displaying the determined storage temperature through a display unit. Thereby, the control method enables a user to select an appropriate storage temperature based on the displayed salinity and recommended storage temperature of the kimchi, thereby improving kimchi storage performance of the kimchi refrigerator. Further, the control method allows a recommended ripening or storage time according to the salinity of the kimchi to be displayed, thereby improving kimchi storage performance of the kimchi refrigerator.
摘要:
The thermoelectric material according to the present invention is characterized in that carbon nanotubes are dispersed in thermoelectric matrix powder by mechanically grinding, mixing, and treating by heating a mixed powder formed through a chemical reaction after mixing a first solution in which carbon nanotubes are dispersed and a second solution containing metallic salts. Further, a method for fabricating the thermoelectric material includes fabricating the first solution and the second solution, mixing the first solution and the second solution with each other to form a mixed solution, forming and growing a mixed powder in which carbon nanotubes and metals are mixed by a chemical reaction of the mixed solution, mechanically grinding and mixing the mixed powder, and heating the ground-and-mixed mixed powder to form the thermoelectric material. In addition, a composite can be made from the thermoelectric material by performing a spark plasma sintering process using the thermoelectric material, and has an improved thermoelectric efficiency due to the carbon nanotubes dispersed in the thermoelectric materials.