摘要:
The invention is a method for continuously preparing highly pure octafluorocyclopentene for use in dry-etching processes. The method includes reacting octachlorocyclopentene with KF in a continuous manner, and purifying crude octafluorocyclopentene. In the reacting step, two KF-charged filters are installed in parallel and allowed to communicate with a reactor containing octachlorocyclopentene in an alternating manner to produce crude octafluorocyclopentene. In the purifying step, organics having lower boiling points than octafluorocyclopentene are removed, and metal ingredients and organics having boiling points higher than octafluorocyclopentene are separated to recover octafluorocyclopentene as a gas. The gaseous octafluorocyclopentene composition contains C5F8 in an amount of 99.995 vol % or higher, nitrogen in an amount of 50 vol ppm or less, oxygen in an amount of 5 vol ppm or less, water in an amount of 5 vol ppm or less, and metal ingredients in an amount of 5 wt ppb or less.
摘要翻译:本发明是用于连续制备用于干蚀刻工艺的高纯度八氟环戊烯的方法。 该方法包括使八氯环戊烯与KF连续反应,并纯化粗八氟环戊烯。 在反应步骤中,平行安装两个带有KF的过滤器,并使其与含有八氯环戊烯的反应器以交替方式连通以产生粗制八氟环戊烯。 在纯化步骤中,除去沸点低于八氟环戊烯的有机物,分离沸点高于八氟环戊烯的金属成分和有机物,以回收作为气体的八氟环戊烯。 气态八氟环戊烯组合物含有99.995体积%以上的C 5 C 5 N 8 N 8,50体积ppm以下的氮,5重量%的氧 体积ppm以下的水,5体积ppm以下的水,5重量ppm以下的金属成分。
摘要:
Provided is an electromagnetic shielding cable. The electromagnetic shielding cable comprises one or more cores made of a conductive material, an insulating layer surrounding the cores, and an electromagnetic shielding material surrounding the insulating layer. The electromagnetic shielding material has a nonconductive material and a conductive soft magnetic material coated on the nonconductive layer.
摘要:
A method of manufacturing a capacitor of a semiconductor device. In order to reduce a vertical etching profile at a lower portion of a hole where a charge storage electrode, an impurity is doped into the interlayer insulating film wherein the difference in concentration of the impurity at a lower portion and at an upper portion of the interlayer insulating film is controlled to make the etching rate at the lower portion of the interlayer insulating film faster than that at the upper portion of the interlayer insulating film using a wet etching process. Therefore, the region where a lower electrode will be formed has a maximum width to prevent a decrease in the capacitance of the capacitor.
摘要:
A system for supporting a fire fighting for a building and a fire fighting method using the same which are capable of more effectively performing a fire fighting operation by providing, in real time. The system includes a tracker for extracting a moving direction and speed of a fire fighter in a building, a see-through type HMD device for extracting a seeing direction of the fire fighter and providing a current position information of the fire fighter including a graphic and text information to the fire fighter, an externally connected PC for storing an information database corresponding to a structure of a building and information related thereto, tracing a position of the fire fighter in the building based on the moving direction of the fire fighter extracted by the tracker and the information database, judging an additional information with respect to a structure of the interior of the building and the structure which are seen by the fire fighter based on the seeing direction information of the fire fighter extracted by the see-through HMD device and the information database, and transmitting the same to the see-through HMD device, and a wireless data transmitting and receiving apparatus for communicating between the tracker, the see-through HMD device and the externally connected computer.
摘要:
Terminal devices that perform machine-to-machine (M2M) communication may autonomously perform password authentication by autonomously generating a personal identity number (PIN) value, which is not exposed externally, using a physical unclonable function (PUF). A terminal apparatus that performs M2M communication may include a PUF embedded in the terminal apparatus to generate an authentication key for password authentication associated with the terminal apparatus, and an authentication unit to perform the password authentication associated with the terminal apparatus using the authentication key generated by the PUF.
摘要:
The present invention relates to an antioxidant cosmetic composition, and more particularly to an antioxidant cosmetic composition containing, as an active ingredient, either an extract of at least one of Chrysanthemum indicum and Citrus unshiu peel, processed using a medicinal herb processing technique, or a mixture of said extract and an extract of at least one of unprocessed Chrysanthemum indicum and Citrus unshiu peel.
摘要:
A laundry dryer is provided which is capable of removing and/or preventing wrinkles of laundry. The laundry dryer includes a drum in which laundry is held, a hot air heater that heats air to supply hot air to the drum, and a water heating part that heats water by using the heats generated at the hot air heater to generate steam.
摘要:
A method of producing human metabolites of simvastatin or lovastatin, and more particularly, a method of producing human metabolites of simvastatin and lovastatin by using bacterial cytochrome P450 BM3(CYP102A1) or mutants thereof, and a composition and kit therefor.
摘要:
A lighting lamp for improving heat dissipation efficiency and preventing life-shorting of an lighting lamp is provided. More specifically, an lighting lamp which comprises a heat sink on peripheral surface of which a first heat transfer flow path is provided, a light emission module provided on the upper plane of the heat sink and provided with at least one light emission element, and a globe connected to the upper part of the heat sink and covering the light emission module, and a second heat transfer flow path provided on outer peripheral surface of the globe and corresponds to the first heat transfer flow path.
摘要:
Electric rice cooker comprises: an upper casing unit having a valve unit discharging pressure; an inner bowl arranged beneath the upper casing unit and containing food; a heat insulating outer bowl enclosing the inner bowl and forming a first heat sustaining space between the inner and outer bowls; a lower casing unit enclosing the heat insulating outer bowl and having air supply ports; a lower heating unit, interposed between the heat insulating outer bowl and the inner bowl, for generating heat; an upper heater unit arranged inside the upper casing unit to operate with the lower heater unit; a vacuum packing unit interposed between the upper casing unit and the inner bowl to cut off air flow; a stopper groove formed along an edge of the upper casing unit facing the inner bowl; and a stopper protrusion for causing the vacuum packing unit to be caught at the stopper groove.