摘要:
A method and apparatus for transportation of wafers from one stage to another in a manufacturing process while protecting clean silicon surfaces and thin films on them from contamination through the air. The apparatus includes a wafer container (101) having a gas inlet (103) and a gas outlet (112), an inert gas container (103) having an inert gas sealed therein, and a piping (114) for connecting the gas inlet (113) of the wafer container to the inert gas container (103) and for sending the inert gas in the inert gas container to the wafer container (114), and wafers are transported while the inside of the wafer container is constantly purged by introducing the inert gas.
摘要:
A method of readily forming a passive oxide film based on chromium oxide characterized by subjecting stainless steel to electrolytic polishing, composite electrolytic polishing and fluidized abrasive polishing, baking the steel thus treated in an inactive gas to remove moisture from its surface, and heat treating the resultant steel at 300 to 600 DEG C in a gaseous atmosphere comprising hydrogen or a mixture thereof with an inactive gas and containing less than 4 ppm of oxygen or less than 500 ppb of moisture. An oxidized stainless steel characterized by comprising a stainless steel having a crystal grain number of 6 or above and, formed on the surface thereof, a passive oxide film based on chromium oxide, wherein the oxide film has a thickness of 5 nm or above and the atomic ratio of chromium to iron on the outermost layer of the film is 1 or above.
摘要:
A method of plasma treatment which comprises allowing an article comprising an aluminum alloy to be treated to have a predetermined temperature, introducing a gas containing an oxygen gas and krypton into a treating chamber from a supplying source for a treating gas, and then generating a plasma by a micro wave in the treating chamber, to thereby generate oxygen radicals and subject the surface of the article to be treated to a radical oxidation treatment. The method allows the formation of an oxide coating film being dense and improved in corrosion resistance on the surface of the article to be treated.
摘要:
In a P-channel power MIS field effect transistor formed on a silicon surface having substantially a (110) plane, a gate insulation film is used which provides a gate-to-source breakdown voltage of 10 V or more, and planarizes the silicon surface, or contains Kr, Ar, or Xe.
摘要:
With a view toward enhancing the adhesion between a fluorinated carbon film and a substratum film, there is provided a method of forming a fluorinated carbon film on a substrate to be treated, characterized in that the method comprises the first step of, by means of a substrate treating unit, effecting plasma excitation of a rare gas and carrying out surface treatment of the substrate with the plasma-excited rare gas and the second step of forming a fluorinated carbon film on the resultant substrate, the substrate treating unit including a microwave antenna electrically connected to a microwave power source.
摘要:
A method for treating an exhaust gas, which comprises the steps of introducing an exhaust gas being in an exited state in a facility for manufacture of a semiconductor device into a plasma treatment portion of a treating section under a reduced pressure, introducing the exhaust gas being maintained in an exited state by a plasma generating in the plasma treatment portion into a reactor in a removal reaction section, reacting the exhaust gas with a removing reaction agent comprised of particulate calcium oxide packed in the reactor and removing harmful gas components in the exhaust gas. The method may further include the step of supplying oxygen into the plasma treatment portion so as to subject the harmful gas components to oxidation decomposition in the presence of a plasma and then reacting the decomposed gas components with the removing reaction agent.
摘要:
A semiconductor device having an insulating film comprising a fluorine-doped carbon film having experienced a thermal history under a temperature of 420°C or less, characterized in that the fluorine-doped carbon film has a hydrogen atom content of 3 atomic % or less before the experience of the thermal history.
摘要:
A system for and a method of producing and supplying highly clean dry air, capable of producing and supplying highly clean dry air at a lower cost in and from a small plant, and being used by effectively circulating the same, the system comprising a clean room provided therein with transfer equipment having a storage and a transfer unit and with treatment equipment, a passage for supplying the highly clean dry air to either one or both of the transfer equipment and treatment equipment, and a passage for circulatingly supplying used highly clean dry air discharged from either one or both of the transfer equipment and treatment equipment to either one or both thereof, the circulating passage being connected to the transfer equipment and storage so as to circulatingly supply the used highly clean dry air therefrom to the storage.
摘要:
A metallic material having, formed thereon, a chromium oxide passive film, characterized in that the metallic material has a surface roughness (Ra) of 1,5 mu m or less and the passive film is formed by a method comprising coating the metallic material with chromium and then subjecting the resultant coated material to a heat treatment in an oxidizing gas atmosphere. The present invention can be used for forming a chromium oxide film which contains no oxide film of another metal and is excellent in corrosion resistance on an arbitrary type of metal at a low cost in a short period of time, and thus for providing a system for supplying a highly corrosive fluid in safety.