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    • 2. 发明公开
    • GAS DETECTION SENSOR
    • GASDETEKTIONSSENSOR
    • EP1267156A1
    • 2002-12-18
    • EP00931706.6
    • 2000-06-05
    • Fujikin IncorporatedOhmi, Tadahiro
    • KAWADA, KoujiIKEDA, NobukazuMORIMOTO, AkihiroMINAMI, YukioKOMEHANA, KatunoriHONIDEN, Teruo
    • G01N25/32
    • G01N25/32G01N33/0013
    • A gas detection sensor of simplified construction that permits precise measurement of the concentration of flammable gas in the detection gas or subject gas and the concentration of oxygen gas in the detection gas containing flammable gases. The gas detection sensor according to the present invention in which the heating of the sensor by the contact catalytic reaction of flammable gas gives off the detection signal of the flammable gas, and which comprises a first detection sensor which includes a diaphragm having a platinum coat on the side with which the flowing detection gas comes in contact and a thermocouple having the one ends of two different kinds of metals placed close to each other and fixed on the reverse side of the diaphragm not coming in contact with the flowing detection gas and which is heated by the contact catalytic reaction of flammable gas, and a second detection sensor which includes a diaphragm having a surface coming in contact with the flowing detection gas and a thermocouple having the one ends of two different kinds of metals placed close to each other and fixed on the reverse side of the diaphragm not coming in contact with the flowing detection gas and which detects the temperature of the flowing detection gas.
    • 一种简化结构的气体检测传感器,其允许精确测量检测气体或主体气体中的可燃气体的浓度以及含有易燃气体的检测气体中的氧气浓度。 根据本发明的气体检测传感器,其中通过易燃气体的接触催化反应对传感器进行加热,发出可燃气体的检测信号,其包括第一检测传感器,其包括具有铂涂层的隔膜 流动的检测气体接触的一侧和具有两个不同种类的金属的一端的热电偶彼此靠近放置并固定在不与流动的检测气体接触的隔膜的反面上, 通过可燃性气体的接触催化反应进行加热,以及第二检测传感器,其包括具有与流动检测气体接触的表面的隔膜和具有彼此靠近放置的两种不同种类金属的一端的热电偶,并且固定 在隔膜的相反侧不与流动的检测气体接触并检测流量的温度 g检测气体。
    • 6. 发明公开
    • METHOD FOR GENERATING WATER FOR SEMICONDUCTOR PRODUCTION
    • VERFAHREN ZUR ERZEUGUNG VON WASSERFÜRDIE HALBLEITERHERSTELLUNG
    • EP0922667A1
    • 1999-06-16
    • EP98924654.1
    • 1998-06-12
    • FUJIKIN Inc.OHMI, Tadahiro
    • OHMI, TadahiroMINAMI, YukioKAWADA, KojiTANABE, YoshikazuIKEDA, NobukazuMORIMOTO, Akihiro
    • C01B5/00
    • C01B5/00
    • Process for generating moisture for use in semiconductor manufacturing, the process comprising feeding hydrogen and oxygen into a reactor provided with a platinum-coated catalyst layer on an interior wall, thus enhancing the reactivity between hydrogen and oxygen by catalytic action and instantaneously reacting the reactivity-enhanced hydrogen and oxygen at a temperature below the ignition point to produce moisture without undergoing combustion at a high temperature, wherein the amount of unreacted hydrogen occurring in the generated moisture in starting up or terminating the moisture generating reaction is minimized and wherein undesired reactions such as undesired silicon oxide film coating are avoided. When the generation of moisture is started up by feeding hydrogen and oxygen into the reactor provided with a platinum-coated catalyst layer on the inside wall thereof, oxygen first starts to be fed and, some time after that, the supply of hydrogen is begun. In terminating the moisture generating operation by cutting off the supply of hydrogen and oxygen into the reactor, the feeding of hydrogen is first stopped and, some time after that, the supply of oxygen is shut off.
    • 用于产生用于半导体制造中的湿气的方法,该方法包括将氢和氧进料到在内壁上设置有铂涂覆的催化剂层的反应器中,从而通过催化作用增强氢和氧之间的反应性,并使反应性 - 在低于点火点的温度下增强氢气和氧气,以产生水分,而不会在高温下经历燃烧,其中在产生水分的反应中启动或终止发生的水分中发生的未反应的氢气的量最小化,并且其中不期望的反应如 避免了不需要的氧化硅膜涂层。 当通过在其内壁上提供有铂包覆的催化剂层的反应器中加入氢气和氧气来启动水分的产生时,首先开始供给氧气,然后一段时间开始供应氢气。 在通过切断氢气和氧气进入反应器来终止湿气产生操作时,首先停止氢的供给,一段时间后,关闭氧气供应。
    • 8. 发明公开
    • METHOD FOR GENERATING MOISTURE, REACTOR FOR GENERATING MOISTURE, METHOD FOR CONTROLLING TEMPERATURE OF REACTOR FOR GENERATING MOISTURE, AND METHOD FOR FORMING PLATINUM-COATED CATALYST LAYER
    • 用于生产防潮,反应器水分生产,一种用于控制反应器的水分发生和方法的温度用于生产具有铂催化剂层的涂布
    • EP0878443A1
    • 1998-11-18
    • EP97901265.5
    • 1997-01-27
    • FUJIKIN Inc.Hitachi, Ltd.OHMI, Tadahiro
    • OHMI, TadahiroKAWADA, KojiTANABE, Yoshikazu, Kabushiki-Kaisha HitachiNITTA, Takahisa, Kabushiki-Kaisha HitachiIKEDA, NobukazuMORIMOTO, AkihiroHIRAO, KeijiMOROKOSHI, HiroshiMINAMI, Yukio
    • C01B5/00
    • C01B5/00
    • The invention further reduces a size and cost of a reactor for generating water from oxygen and hydrogen, provides high-purity water in an amount necessary for practical use safely, stably and continuously, and allows a platinum-coated catalyst layer formed on an inner wall of a reactor body to maintain high catalytic activity over a long period of time. Specifically, the reactor comprises a body made of a heat-resistant material and having an inlet and an outlet for water/moisture gas, has a gas-diffusing member provided in an internal space of the body, and has a platinum coating on an internal wall surface of the body. Hydrogen and oxygen fed from the inlet is diffused by the gas-diffusing member and then comes into contact with the platinum coating to enhance reactivity, thereby producing water from hydrogen and oxygen. A temperature of the reactor for generating moisture, wherein hydrogen is reacted with oxygen at a high temperature to generate moisture, is held to be below an ignition temperature of hydrogen or a hydrogen-containing gas so that hydrogen is reacted with oxygen while preventing explosive combustion of hydrogen and oxygen. The platinum-coated catalyst layer on the internal wall of the reactor body is formed by treating the surface of the internal wall of the body, cleaning the treated surface, forming a barrier coating of a nonmetallic material of an oxide or nitride on the wall surface, and forming the platinum coating on the barrier coating.
    • 本发明进一步减小了尺寸和用于产生由氧气和氢气水的反应器的成本,提供了高纯度的水到所需量实际使用安全,稳定地和连续地,并允许形成在到内壁上的镀铂催化剂层 反应器主体的在一段长时间内保持高的催化活性。 具体地,该反应器包括一个由耐热材料制成,并在入口和出口,用于水/水分气体具有主体,具有气体扩散构件在所述主体的内部空间中设置于,并且具有铂在内部涂覆上 主体的壁面上。 氢气和氧气从所述入口供给由气体扩散构件扩散,然后与铂涂层接触,以提高反应性,从而由氢气和氧气产生水。 该反应器用于产生湿气,worin氢的温度在高温下与氧反应生成的水分,被保持为低于氢或含氢气体,从而也氢进行反应与氧气的燃点温度,同时防止爆炸燃烧 的氢气和氧气。 在反应器主体的内壁涂覆铂的催化剂层通过处理所述体的内壁的表面上,清洗处理过的表面,在壁表面上形成的氧化物或氮化物的非金属材料构成的阻挡涂布形成 ,以及形成在该阻挡涂层的铂涂层。