摘要:
The present invention aims at providing an apparatus for and a method of forming low-temperature oxide films, which are capable of forming an oxide film at a low temperature and preventing the diffusion of impurities from the outside. The apparatus for forming an oxide film at a low temperature is characterized in that it has an oxidation furnace provided with a gas supply port and a gas discharge port, a heater for heating the oxidation furnace to a predetermined temperature, and a gas supply system disposed upstream of the oxidation furnace and provided with a means for adding an arbitrary quantity of water or a means for generating an arbitrary quantity of water.
摘要:
This invention aims at providing a method of evaluating a current-driven conductive material such as wiring conductor, in which the resistance to electromigration and the resistance to stress migration are independently measured in a short time. A first current is supplied to a conductor to measure its resistance value, and a second current larger than the first current is supplied for a predetermined period to cause its physical properties to change. Thereafter, the resistance value of the conductor is again measured by using the first current. This procedure is repeated for accelerated evaluation of reliability of the conductor. In this method, the duration of the second current is sufficiently smaller than that of the first current so that electromigration may be measured within a temperature rise of 50°C. To measure stress migration, on the other hand, the second current is set so that electromigration may not occur, and it is fed at intervals less than 10 ms so that the temperature rise may exceed 100°C.
摘要:
This invention provides a welding method capable of forming an oxide passivation film having corrosion resistance and an extremely small emission quantity of an outgas during welding at a weld portion and portions nearby, and a process apparatus requiring an ultrahigh-clean atmosphere. A back-seal gas comprising an inert gas contaning 1 ppb to 50 ppm of oxygen gas in caused to flow during a welding process and an oxide passivation film comprising chromium oxide as a principal component is formed on the surface of a weld portion. In a process apparatus using welding for installing the apparatus, a back-seal gas comprising an inert gas containing 1 ppb to 50 ppm of oxygen gas is caused to flow during a welding process and an oxide passivation film comprising chromium oxide as a principal component is formed on the surface of a weld portion.
摘要:
This invention relates to a metal oxidation apparatus for forming a passivation film on the surface of a bent pipe of a metal to be oxidized having a bent portion such as a stainless steel pipe. The apparatus includes an oxidation furnace, a gas inlet for introducing a gas into the oxidation furnace, an exhaust port for discharging the gas from inside the oxidation furnace, a heater for heating the oxidation furnace to a predetermined temperature and a holder for fixing a tubular metal to be oxidized having a bent portion inside the oxidation furnace, the holder serving also as a connection joint. The inlet is disposed in such a manner as to come into contact with one of the ends of the bent metal pipe and the exhaust port is disposed in such a manner as to come into contact with the other end. The invention is characterized in that the bent metal pipe to be oxidized is heated and oxidized in a dry oxidizing atmosphere while a gas is being passed through the inside of the bent metal pipe to be oxidized.
摘要:
An object of the present invention is to provide a method of washing a substrate, wherein even traces of impurities in minute and high-aspect-ratio trenches or holes can be washed and removed free from contamination by washing solution and a system and a method for producing ultrapure water, capable of producing ultrasuper pure water for use in the washing. The present invention is characterized in that, at the intermediate portions of a piping (7) for supplying a predetermined ultrapure water to a use point, there are provided: a first steam generating means (1) for heating a first ultrapure water for conversion into a first steam; a steam heating means (3) for further heating the first steam for conversion into a second steam higher in temperature than the first steam; and a cooling means (5) for cooling the second steam for conversion into a second ultrapure water.
摘要:
A silicon wafer of a diameter larger than eight inches, whose surfaces are not roughed by cleaning with NH₄OH-H₂O₂, and on which devices of higher performances can be fabricated. A thermal oxidation film is formed on the entire surface of a silicon wafer of a diameter larger than eight inches which is prepared by slicing an ingot made through a pulling method. After removing all the thermal oxidation film of the silicon wafer, the whole surface of the wafer is cleaned with NH₄OH-H₂O₂.
摘要翻译:直径大于8英寸的硅晶片,其表面不被NH 4 OH-H 2 O 2清洗而被粗糙化,并且可以制造具有更高性能的器件。 在直径大于8英寸的硅晶片的整个表面上形成热氧化膜,其通过切割通过牵引方法制成的锭而制备。 在除去硅晶片的所有热氧化膜之后,用NH 4 OH-H 2 O 2清洗晶片的整个表面。
摘要:
A method and an apparatus for high-temperature high-pressure washing employed in the step of washing in the electronic industries such as chiefly semi-conductor industries and in the industries of optical devices. The high-temperature high-pressure washing apparatus has a compression-feed pump, a heating device, nozzles and piping, to spout high-temperature high-pressure water from nozzles onto materials to be washed. The apparatus has the function of spouting very pure water having high temperature and high pressure from the nozzle, onto the materials to be washed. The very pure water used has a resistivity greater than 17.0 MΩ.cm at 25 °C.
摘要:
A method of forming an oxide film comprising at least: a first step of forming an oxide film on the surface of a substrate by bringing a solution of oxygen and/or a solution of oxygen-containing molecules into contact with the surface of the substrate on which the oxygen film is to be formed; and a second step of strengthening the bonding of oxygen and the atoms constituting the surface of the substrate in the oxide film by heat-treating the oxide film at a temperature higher than 20°C in a gas phase of oxygen, molecules containing oxygen, or inert gas alone, or a mixture of two or more of them.
摘要:
A silicon oxide film in which the peak bond energy of an Si 2p of a silicon-oxygen bond is greater than that of an Si 2p3/2 of a silicon-silicon bond by more than 4.1 eV in X-ray photoelectron spectroscopy.
摘要:
A gas supply pipeline system for process equipment, adapted to supply at least two kinds of process gas, and provided with at least two valves (135, 136, 139, 140) installed in each of independent flow passages formed between process gas supply pipelines and a purge gas supply pipe line, and at least two valves (137, 138, 141, 142) installed in each of a plurality of flow passages formed between the process gas supply pipelines and the pipelines in the process equipment. Each of the process gas supply pipelines and each of the pipelines in the process equipment can be purged and vacuumed by at least two valves in each of these flow passages that are opened or closed independently, and the stagnation of a gas in the pipelines not in use can be prevented by introducing a purge gas constantly thereinto.