摘要:
A method for treating an exhaust gas, which comprises bringing an exhaust gas discharged from CVD equipment employing silicon-base gas into contact with a transition metal such as nickel or a silicide thereof preheated to a given temperature, thus decomposing a feed gas and high-boiling intermediates contained in the exhaust gas, and then rendering toxic components contained in the exhaust gas harmless.
摘要:
When a thin sheet-like substrate S is conveyed between conveying chambers (2) equipped with a processing apparatus (1) and kept in an inert gas atmosphere by using a conveying robot (30) equipped with an accommodation chamber (3) capable of accommodating the thin sheet-like substrate (S) in an inert gas atmosphere, a connection chamber (4) is interposed between the accommodation chamber (3) and the conveying chamber (2) when the thin sheet-like substrate (S) is transferred between the accommodation chamber (3) of the conveying robot (30) and the conveying chamber (2) on the side of the processing apparatus (1), and is vacuumized, and then an inert gas is introduced. Thereafter, gate valves (GV1 and GV2) of the accommodation chamber (3) and the conveying chamber (2) are opened and the thin sheet-like substrate (S) is carried in and out.
摘要:
A method and device by which the yield of a thin plate-like substrate of a semiconductor integrated circuit, liquid crystal panel, etc., is improved by always transferring the substrate to each processing device in a highly clean damage-free state when the substrate is subjected to various kinds of treatment. A substrate is transferred through a gas tunnel through which a purging gas composed of in insert gas or a mixed gas of an inert gas and oxygen gas is made to flow. The concentrations of impurities in the gas tunnel are measured with a semiconductor laser detector, and the transfer of the substrate is controlled based on the obtained measured data.
摘要:
A process and an apparatus for recovering a noble gas, which can recover a noble gas exhausted from a noble gas employing system efficiently and also can supply the noble gas of a predetermined purity to the noble gas employing system and which can reduce consumption of the noble gas. In the process and apparatus for recovering a noble gas, when a noble gas contained in an exhaust gas exhausted from a noble gas employing system operated under reduced pressure is recovered, switching between introduction of the exhaust gas to a recovery system and exhaustion of the exhaust gas to an exhaust system is carried out under reduced pressure, and this switching operation is carried out depending on the content of impurity components contained in the exhaust gas or on the running state of the noble gas employing system.