摘要:
A safe, reduced pressure apparatus for generating water vapor from hydrogen and oxygen and feeding high purity moisture to processes such as semiconductor production. The apparatus eliminates the possibility of the gas igniting by maintaining the internal pressure of the catalytic reactor for generating moisture at a high level while supplying moisture gas from the reactor under reduced pressure. A heat dissipation reactor improvement substantially increases moisture generation without being an enlargement in size by efficient cooling of the reactor alumite-treated fins.
摘要:
A safe, reduced pressure apparatus for generating water vapor from hydrogen and oxygen and feeding high purity moisture to processes such as semiconductor production. The apparatus eliminates the possibility of the gas igniting by maintaining the internal pressure of the catalytic reactor for generating moisture at a high level while supplying moisture gas from the reactor under reduced pressure. A heat dissipation reactor improvement substantially increases moisture generation without being an enlargement in size by efficient cooling of the reactor alumite-treated fins.
摘要:
The present invention provides a vacuum thermal insulating valve that may be used at high temperature in gas supply systems or gas exhaust systems, and also may be made substantially small and compact in size owing to its excellent thermal insulating performance. With a vacuum thermal insulating valve comprising a valve equipped with a valve body and an actuator, and a vacuum thermal insulating box that houses the valve, the afore-mentioned vacuum thermal insulating box S is formed by a square-shaped lower vacuum jacket S5 having a cylinder-shaped vacuum thermal insulating pipe receiving part J on a side and with its upper face made open, and the square-shaped upper vacuum jackets S4, which is hermetically fitted to the lower vacuum jacket S5 and with its lower face made open.
摘要:
It is an object of the present invention to provide a rotation type silicon wafer cleaning device to further raise the stability of a silicon wafer by providing a better hydrogen termination on the silicon wafer after completion of chemical and pure water cleaning treatments.According to the present invention, a rotation type silicon wafer cleaning device has a silicon wafer support/rotation driving mechanism inside the case body for cleaning the silicon wafer at the post chemical cleaning with pure water, drying and hydrogen termination treatments on the outer surface of a silicon wafer is performed by means of installing a silicon wafer drying device comprising a gas supply panel attached to a case body to supply a mixed gas of the hydrogen gas and inactive gas containing a hydrogen gas of more than 0.05%, a mixed gas supply pipe coupled to a gas mixer of the afore-mentioned gas supply panel at one end, a mixed gas heating device to heat the mixed gas in the afore-mentioned gas supply pipe, and a hydrogen radical formation apparatus equipped with a platinum coating film to form hydrogen radical at the gas contacting part where to a high temperature gas heated with the afore-mentioned mixed gas heating device touches, thus to gush out the mixed gas containing hydrogen radical formed with the afore-mentioned radical formation apparatus onto the rotating silicon wafer after cleaning is completed.
摘要:
A process of supplying moisture at low flow rates which permits high precision control of the flow of moisture to a semiconductor manufacturing line from an apparatus for the generation of moisture, characterized in that the flow of hydrogen to a moisture-generating reactor is controlled by means of a flow controller in such a way that an amount of hydrogen as fed is gradually increased from the start and reaches a specific set level such that when a specific time has passed, a predetermined rate of moisture begins to be produced and supplied to the semiconductor manufacturing line. The moisture is generated in the apparatus for generation of moisture in which hydrogen and oxygen are (a) fed into a reactor provided with a coat of platinum on the wall in the interior space, (b) enhanced in reactivity by the platinum catalytic action, and (c) caused to instantaneously react with each other at a temperature lower than the ignition point to produce moisture without undergoing combustion at a high temperature.
摘要:
A device for heating a fluid controller comprises a pair of platelike side heaters pressed respectively against a pair of opposite side faces of a body of the fluid controller with an insulating layer provided between each heater and each side face, a pair of side holding members each having a recessed portion for fitting the side heater therein and fastened to each other with screws to hold the controller body therebetween from opposite sides of the body, and a cushion member interposed between each side heater and a bottom face of the recessed portion for pressing the side heater against the controller body side face.
摘要:
A pressure type flow rate control apparatus (1) for controlling flow rate of a fluid maintains an upstream side pressure P1 of an orifice at more than about twice a downstream side pressure P2. In addition to an orifice-forming member (5) the apparatus includes a control valve (2) provided at the upstream side of the orifice, a pressure detector (3) provided between the control valve and the orifice, and an operation control device (6) for calculating a flow rate Qc from the detected pressure P1 of the pressure detector as Qc=KP1 (K being a constant) and issuing a difference as a control signal Qy between a flow rate command signal Qs and the calculated flow rate Qc to a drive unit of the control valve. The orifice upstream side pressure P1 is adjusted by opening and closing the control valve, thereby controlling the orifice downstream side flow rate.
摘要:
A pressure type flow rate control apparatus (1) for controlling flow rate of a fluid maintains an upstream side pressure P1 of an orifice at more than about twice a downstream side pressure P2. In addition to an orifice-forming member (5) the apparatus includes a control valve (2) provided at the upstream side of the orifice, a pressure detector (3) provided between the control valve and the orifice, and an operation control device (6) for calculating a flow rate Qc from the detected pressure P1 of the pressure detector as Qc=KP1 (K being a constant) and issuing a difference as a control signal Qy between a flow rate command signal Qs and the calculated flow rate Qc to a drive unit of the control valve. The orifice upstream side pressure P1 is adjusted by opening and closing the control valve, thereby controlling the orifice downstream side flow rate.
摘要:
A barrier film which has uniform thickness and excellent adhesiveness to the base material and superbly functions to protect a platinum film can be formed on the inner wall surface of a moisture-generating reactor at ease and at a low cost. The moisture-generating reactor in which hydrogen and oxygen are reacted to generate moisture without high temperature combustion is made of an alloy containing aluminum. A principally aluminum oxide (Al2O3)-composed barrier film is formed by applying an aluminum selective oxidation treatment on the inner wall surface of the moisture-generating reactor, and thereafter a platinum film is stacked on and stuck to the barrier film so that a platinum coating catalyst layer is formed.
摘要翻译:能够容易地且成本低廉地在发湿反应堆的内壁面上形成具有均匀厚度和对基材的粘合性优异的保护铂膜的保护膜的阻挡膜。 其中氢和氧反应产生水分而不进行高温燃烧的发湿反应器由含铝的合金制成。 通过在产生水分的反应器的内壁表面上进行铝选择性氧化处理,形成主要为氧化铝(Al 2 O 3)的阻挡膜,然后将铂膜层叠并粘贴在阻挡膜上,使铂 形成涂层催化剂层。
摘要:
A safe, reduced pressure apparatus for generating water vapor from hydrogen and oxygen and feeding high purity moisture to processes such as semiconductor production. The apparatus eliminates the possibility of the gas igniting by maintaining the internal pressure of the catalytic reactor for generating moisture at a high level while supplying moisture gas from the reactor under reduced pressure. A heat dissipation reactor improvement substantially increases moisture generation without being an enlargement in size by efficient cooling of the reactor alumite-treated fins.