摘要:
The present invention has an object to comprise an apparatus for high efficiency gas temperature and humidity adjustment and an adjustment method allowing to elevate the heat exchange efficiency of a cooling coil, reduce the cooling water quantity, lower also the pipe arrangement diameter and water supply pump power, making possible to cut the initial cost and running cost of the air-conditioning system. The apparatus for high efficiency gas temperature and humidity adjustment is characterized by that means for removing condensate water deposited on the cooling coil.
摘要:
A container for a precision substrate, which has at least one component formed from a thermoplastic resin, characterized in that it satisfies the following characteristics [1] and [2]: [1] when a flow of an ultra-high pure argon gas impurity content: 1 ppb or less is continuously contacted with the container with a flow rate of 1.2 L/min, the argon gas has a moisture content of 30 ppb per 1 cm2 of the surface area of the component 30 min after the start of contacting [2] when the container is placed in air at 100ringC, the amount of the organic materials in the air which is increased in the period of 300 min. is 150 ng or less per 1 g of the weight of the component. The container can satisfy the requirement of low staining for a container for a precision substrate.
摘要:
A silicon carbide product is disclosed which is characterized by having a surface with a metal impurity concentration of not more than 1×10 11 (atoms/cm 2 ). Also disclosed are a method for producing such a silicon carbide product and a method for cleaning a silicon carbide product. A silicon carbide having such a highly cleaned surface can be obtained by cleaning it with a hydrofluoric acid, a hydrochloric acid, or an aqueous solution containing a sulfuric acid and a hydrogen peroxide solution. The present invention provides a highly cleaned silicon carbide, and thus enables to produce a semiconductor device which is free from consideration on deterioration in characteristics caused by impurities. Further, when the silicon carbide is used in a unit for semiconductor production or the like, there is such an advantage that an object processed in the unit can be prevented from suffering an adverse affect of flying impurities.
摘要翻译:公开了一种碳化硅产品,其特征在于具有不大于1×10 11(原子/ cm 2)的金属杂质浓度的表面。 还公开了制造这种碳化硅产品的方法和清洁碳化硅产品的方法。 通过用氢氟酸,盐酸或含有硫酸和过氧化氢溶液的水溶液进行清洗,可以得到具有高度清洁表面的碳化硅。 本发明提供了一种高度清洁的碳化硅,因此能够制造出不考虑由杂质引起的特性劣化的半导体器件。 此外,当碳化硅用于半导体生产等的单元中时,具有能够防止在该单元中加工的物体遭受飞散杂质的不利影响的优点。
摘要:
Installed in a processing vessel (22) is a mounting block (24) on which a semiconductor wafer (W) is mounted. Microwaves, which are generated by a microwave generator (76), are introduced into a processing vessel (22) through a planar antenna member (66). The planar antenna member (66) has a plurality of slits (84) arranged along a plurality of circumferences, the circumferences forming non-concentric circles. The plasma density distribution in the radial direction of the planar antenna member (66) becomes uniform.
摘要:
A reactor for moisture generation completely preventing hydrogen gas from being ignited, back fire to a gas feed source side from occurring, and a platinum coating catalyst layer from being peeled off inside a reactor main body for moisture generation so as to further increase the safety of the reactor for moisture generation and reduce a dead space of an internal space inside the reactor main body in order to further reduce the size of the reactor main body, wherein an inlet side reactor main body member (1) having a gas feed port (1a) and an outlet side reactor main body member (2) having a moisture gas outlet port (2a) are combined opposedly to each other, these both members are welded with each other so as to form a reactor main body A, a reflector is provided inside the internal space (V) of the reactor main body, a platinum coating catalyst layer (8) is formed on the inner wall surface of the outlet side reactor main body member (2), and hydrogen and oxygen fed from the gas feed port (1a) to the internal space (V) of the reactor main body A are brought into contact with the platinum coating film (8b) to activate its reactivity, whereby hydrogen and oxygen are reacted under noncombustion state so as to produce water.
摘要:
A semiconductor circuit for arithmetic operation, which uses a reduced circuit area and provides high-speed processing by restricting nonessentials. The semiconductor circuit comprises an arithmetic circuit (adders 1-3) and delay means (memory 4). The arithmetic circuit includes arithmetic units for operation on input data, and they operate on digits of input data in a period of operation time, and produce results of operation, together with data corresponding to a carry, if any. The output from the arithmetic circuit is delayed by one period of operation time through the delay means.
摘要:
A gas supply equipment comprising a gas control valve (2), an orifice accommodating valve (9) provided downstream of the control valve (2), a pressure detector (3) provided between the control valve (2) and the orifice accommodating valve (9), an orifice (5) provided downstream of the valve mechanism of the orifice accommodating (9) and an arithmetic and control unit which calculates a flow rate as Qc = KP1 (K; constant) from a detected pressure P1 by the pressure detector (3) and outputs to the drive unit of the control valve (2) the difference between a flow rate instruction signal Qs and a calculated flow rate Qc as a control signal Qy.
摘要:
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.
摘要:
An orifice for use in pressure type flow rate control unit which can be manufactured easily and inexpensively, and which has a linear relationship between pressure P1 upstream of the orifice and the flow rate over a wide range of pressure ratio P2/P1 (where P1 is the pressure upstream of the orifice and P2 is the pressure downstream of same), with the flow rate characteristic relationship among a plurality of orifices being easily adjustable. More specifically, the orifice has a structure comprising a tapered inlet section (1) wherein one open end of a bottom hole (6) bored into a main body member (D) is cut into a shape like the mouthpiece of a trumpet, and a short drawn parallel part (2) continuing therefrom; and a short expanded tapered section (3) formed by expanding the diameter of the other open end of the bottom hole (6) and continuing from the drawn parallel part (2), and an expanded parallel part (4) continuing therefrom.