41 results about "Atmospheric exposure" patented technology

This invention adds to the art of replacement source-drain cMOS transistors. Processes may involve etching a recess in the substrate material using one equipment set, then performing deposition in another. Disclosed is a method to perform the etch and subsequent deposition in the same reactor without atmospheric exposure. In-situ etching of the source-drain recess for replacement source-drain applications provides several advantages over state of the art ex-situ etching. Transistor drive current is improved by: (1) Eliminating contamination of the silicon-epilayer interface when the as-etched surface is exposed to atmosphere and (2) Precise control over the shape of the etch recess. Deposition may be done by a variety of techniques including selective and non-selective methods. In the case of blanket deposition, a measure to avoid amorphous deposition in performance critical regions is also presented.

Provided is Sb—Te alloy powder for sintering in which the maximum grain size of the powder obtained by subjecting gas atomized powder of an Sb—Te alloy to mechanical pulverization is 90μm or less, and a sintered compact sputtering target obtained by sintering this powder. Further provided is a manufacturing method of Sb—Te alloy powder for a sintered compact sputtering target including the steps of dissolving an Sb—Te alloy, thereafter subjecting this to gas atomization to obtain atomized powder, and further subjecting this to mechanical pulverization in an inert atmosphere without any atmospheric exposure so as to manufacture powder having a maximum grain size of 90 μm or less and reduced oxygen content. Thus, the Sb—Te alloy sputtering target structure can be uniformalized and refined, generation of cracks in the sintered target can be inhibited, and generation of arcing during sputtering can be inhibited. Further, surface ruggedness caused by sputter erosion can be reduced in order to obtain a high quality Sb—Te alloy sputtering target.

Disclosed are a wafer carrier that keeps wafers under a constant pressure, at any preset value below or above the atmospheric pressure, to prevent wafer contaminations arising from atmospheric exposure in conventional wafer carriers, and also, a wafer transport system and method utilizing the same wafer carrier. The wafer carrier charged with a preset carrier pressure is transported and docked with an airlock of a wafer processing tool comprising the airlock, a vacuum transfer module, and a process chamber. The airlock adjusts, by a gas pump, inner pressure to equate successively with, first, the carrier pressure before opening the carrier door, and next, the vacuum transfer module pressure before opening the latter's door. The wafers are then transferred into the process chamber. After processing, the wafers are transferred back into the wafer carrier and charged with the preset carrier pressure before undocked and transported to the next wafer processing tool.

The present invention provides a release film which can be peeled off with a light peel force and can exhibit an excellent retention force upon storage as well as an excellent resistance to atmospheric exposure and an excellent anti-migration property. The release film comprises a polyester film and a coating material applied onto at least one surface of the polyester film which comprises a curing type silicone as a main component, wherein the curing type silicone in the coating material comprises a vinyl group-containing polysiloxane chain in which a content of the vinyl group is not less than 3% in terms of siloxane units; and wherein a ratio of SiH to Vi (SiH/Vi) in the coating material is 2.5 to 7.

The invention provides an improved atmospheric exposure test chamber of xenon lamps, which has better testing accuracy and longer service life, comprises a case body with a working chamber and a controlling chamber arranged inside, and is characterized in that an irradiation sensor is arranged outside the working chamber.

The invention belongs to the technical field of corrosion predication of metal materials and in particular relates to a predication method for the corrosion service life of a metal material. The predication method comprises the following steps: carrying out an atmospheric exposure test; calculating the corrosion weight loss of a test sample after the test sample is exposed for different exposure periods; establishing a predication model by utilizing original data, wherein an established differential equation is as follows: dX1/dt+aX1=b; determining parameters a and b by utilizing least-squaresalgorithm linear fitting; finally, obtaining a solution of the equation, i.e. X1(m)=[X0(1)-b/a]e-a(m-2)+b/a. By adopting the predication method provided by the invention, predicated precision is checked by utilizing a residual testing method and a posterior variance testing method; the corrosion service life of the metal material in a long period under an actual application environment can be accurately predicated.

The invention provides an experimental method for corrosion resistance of a steel bar used in a concrete structure in a tropical marine atmospheric environment. The method comprises the following steps of: counting and analyzing climatic and environmental conditions and changing laws of coastal areas of Thailand, establishing a load spectrum of environmental corrosion parameters; formulating various concrete proportions and concrete thickness, designing different experimental schemes, preferably setting a concrete proportion and determining the concrete thickness according to the load spectrumof the environmental corrosion parameters, and designing a mold according to the size of a steel bar sample and the concrete thickness; fixing the steel bar sample inside the mold, pouring the concrete slurry into the mold, and removing the mold after the slurry is solidified to obtain a reinforced concrete sample; and fixing the reinforced concrete sample to a sample holder for outdoor atmospheric exposure test, and evaluating the corrosion resistance of the steel bar sample by analyzing corrosion kinetics and macroscopic morphology of the steel bar sample in different sampling periods. According to the experimental method for the corrosion resistance of the steel bar used in the concrete structure in the tropical marine atmospheric environment, the corrosion resistance of the steel barcan be evaluated in a short period of time, the steel bar with good corrosion resistance are preferred.

The invention discloses a method for measuring the corrosion resistance rate of atmospheric corrosion coupons, relates to the technical field of corrosion resistance, and aims to reduce the number of test stations for conducting atmospheric exposure tests on power transmission line poles. The measurement method includes obtaining the air pollutant information of each grid transmission area that the grid transmission line passes through; classifying each grid transmission area according to the main pollutant types in the air pollutant information, and obtaining N types of grid transmission areas, from each type Select any transmission area of ​​the grid in the transmission area of ​​the grid as the test site, and conduct the atmospheric exposure test of the transmission line tower in the transmission area of ​​the grid, and obtain the corrosion resistance rate of the atmospheric corrosion coupon. The method for measuring the corrosion resistance rate of the atmospheric corrosion coupons provided by the invention is used in the atmospheric exposure test of transmission line towers.

A cost-effective process for treating a concrete structure includes the following steps. A surface of the concrete structure is coated with an organo-silicon compound and the organo-silicon coated surface is covered so as to reduce atmospheric exposure of the organo-silicon compound while the organo-silicon compound migrates into the concrete structure.

The invention belongs to the technical field of materials for plastic woven bags, and in particular relates to a preparation method of filaments for weather-resistant plastic woven bags. The method comprises the steps of preparing raw materials, preparing mixed powder, carrying out melt filtration on the raw materials, extruding to obtain a film, cooling with water, splitting into filaments, drawing the filaments and winding. Compared with the prior art, the preparation method provided by the invention has the advantages that the physical properties of the obtained woven bags can be better improved by proportioning the raw materials with different molecular weights; the compatibility of the materials can be improved due to the use of silane-grafted polyethylene; wollastonite powder is processed, and other raw materials are cooperatively used, so that the weather resistance of the material can be improved; in outdoor atmospheric exposure tests, the physical properties are maintained well; the plastic woven bags made by using the filaments have better oxidation resistance and anti-sunburn property, and are solid, durable and long in service life.

Sample transferring can be securely and easily performed between an FIB device, an electron microscope, and an atom probe device, and atom probe analysis can be performed to a material that easily alters due to atmospheric exposure. A sample holder that holds a sample (12) is provided with an atmosphere-isolation mechanism that prevents the sample from altering due to the atmospheric exposure upon the sample transferring between the devices. There is provided a structure enabling of attaching and detaching a housing (21) of a sample holder leading end of a part of the atmosphere-isolation mechanism in an analytical vacuum device, such as the atom probe device.