85 results about "Surface response" patented technology

A reaction chamber apparatus includes a vertically movable heater-susceptor with an attached annular attached flow ring that performs as a gas conduit. The outlet port of the flow ring extends below the bottom of a wafer transport slot valve when the susceptor is in its process (higher) position, while the gas conduit formed by the flow ring has an external surface at its edge that isolates the outer space of the reactor above the wafer from the confined reaction space. In some cases, the outer edge of the gas conduit is in proximity to a ring attached to the reactor lid and, together, the ring and conduit act as a tongue-in-groove (TIG) configuration. In some cases, the TIG design may have a staircase contour, thereby limiting diffusion-backflow of downstream gases to the outer space of the reactor.

A method of increasing ALP briefly, a preferred embodiment of the present invention includes a method of increasing ALP throughput by continuously modulating gas flow in a reactor to achieve layer by layer growth on a wafer. A first reactant is introduced with a percentage of a carrier gas. After a first time interval, the first reactant flow is reduced while the carrier gas flow is increased so as to maintain an approximately constant total gas flow. When the first reactant flow reaches a minimal, predetermined amount, a second reactant flow is initiated and increased while the carrier gas flow is decreased so as to continue a constant total gas flow. The method alternatively includes introducing a substance that enhances reactant adsorption and chemisorption, either as a first applied gas that reacts with the surface or as an added ligand to the reactant. Still further alternatives include a periodic rapid thermo anneal for improving film properties, parallel wafer processing and a reactant reservoir.

Radio-frequency (RF) excitation is used for direct detection of hybridization events at microelectrodes with surface-attached DNA oligomers. A homodyne reflectometer operates on a high frequency carrier to detect the presence of a low-frequency modulation signal. Without non-linearities in an interface, the modulation signal is not impressed upon the carrier signal. As such, the reflectometer can sensitively measure changes in dielectric properties without interference from other sources of capacitance/resistance unrelated to the reaction at the surface.

The invention discloses a soil sampling method based on a near-earth sensor technology. Data quickly acquired by utilizing a near-earth sensor are transformed into a decorrelation matrix with one center by transforming a principal component and removing outliers, then the positions of initial candidate points of a curved surface response design are found by adopting a central composite response design, the position points only statistically satisfy the selection of coordinate position points of the central composite response design, afterwards the screening of the optimal position is determined by adopting iterative computation according to the standards of minimized distance and a maximized covariance structure among close positions, whether sampling positions are evenly distributed in a sample area is judged by adopting an optimized index, and finally sampling points with the coordinate positions are output in a form of graphics. Efficient sampling for soil fertility can be carried out by combining the data quickly acquired by utilizing the near-earth sensor with the curved surface sampling design, and an optimal soil sampling layout scheme can be obtained quickly and accurately, the cost is saved, and the efficiency and the representativeness of the distribution of the sampling points are improved.

The invention provides a microwave smoke desulfurizing and denitrating method and the device. After the smoke is compressed, the smoke enters into the reactor which is mixed with adsorptive sensitizing agent reaction layer; it supplies microwave through the microwave device; the sulfur dioxide and nitrogen-oxygen compound reacts on the surface of the absorptive sensitizing agent in microwave environment and gets the resultant. The comprises direct current power, modulating power, stage-gathering magnetism circle pipe, connection matching and adjusting system, power measurer. The invention uses microwave energy and absorptive sensitizing agent fully, the effect is prominent; the energy utilization rate is high. The operation cost is decreased, and erosion of equipment is decreased.

The present invention relates to a method of processing selected surfaces in a semiconductor process chamber by creating a temperature differential between the selected surfaces and contacting the surfaces with a reactant that preferentially react with a surface at one end of the temperature differential relative to the other selected surface(s). More particularly, the invention relates to the use of nitrogen trifluoride (NF₃) gas for in situ cleaning of cold wall process chambers such as Rapid thermal Chemical Vaporization (“RTCVD”) systems.

An apparatus for atomic layer deposition preventing mixing of a precursor gas and an input gas. From the apparatus a flow of the input gas is provided over a surface of the workpiece wherein a beam of the electromagnetic radiation is directed into the input gas in close proximity to the surface of the workpiece, but spaced a finite distance therefrom. The input gas is dissociated by the beam producing a high flux point of use generated reactive gas species that reacts with a surface reactant formed on the surface of the workpiece by a direct flow of the precursor gas flown from the dispensing unit. The surface reactant and reactive gas species react to form a desired monolayer of a material on the surface of the workpiece.

A thermal interface material (TIM) includes a modified release layer having an organosilane-coated surface covalently bound to a TIM formulation layer. The modified release layer may be formed by applying an organosilane (e.g., vinyltriethoxysilane) to the surface of a thermally conductive release layer (e.g., aluminum foil). The organosilane reacts with hydroxyl groups on the surface of the thermally conductive release layer. The TIM formulation layer may be formed by applying a TIM formulation (e.g., a graphite TIM formulation) containing an unsaturated monomer (e.g., methyl acrylate) to the organosilane-coated surface of the modified release layer, and then curing the TIM formulation so that the unsaturated monomer of the TIM formulation reacts with the organosilane-coated surface of the modified release layer.

The invention discloses a ternary cross-linked hydrogel electrolyte, a preparation method and applications thereof, wherein polyvinyl alcohol, a bis-catechol derivative, boric acid, potassium hydroxide and water are used as raw materials, a macromolecular cross-linking agent D-B is obtained through a condensation reaction between the boric acid and the o-hydroxyl in the bis-catechol, and the polyvinyl alcohol is cross-linked with the macromolecular cross-linking agent D-B to form a cross-linked network structure, so that the rapid self-repairing hydrogel is obtained. According to the invention, the synthesis method has characteristics of simple process, mild condition, easy operation and no product post-treatment; by changing the use amounts of the polyvinyl alcohol and the cross-linking agent, the hydrogel electrolytes with different self-repairing capacities, mechanical strengths and conductivities are obtained, and can generate viscosity and lose viscosity under electrical stimulation, wherein the viscosity responsiveness can be regulated by regulating the electrical stimulation time and the voltage; and the self-repairing hydrogel has important applications in the fields of soft robots, artificial ligaments, flexible devices, surface response materials, wall climbing robots, controllable coatings, automobile intelligent sensors and the like.

A deposition nozzle and a deposition apparatus include a nozzle body, a precursor passageway formed at a central region of the nozzle body for a precursor gas to be sprayed on the substrate such that the precursor gas reacts with a surface of the substrate, an extraction passageway formed in the nozzle body and located at a peripheral side of the precursor passageway, and extracting residues after the precursor gas reacts with the surface of the substrate, and an air curtain passageway formed in the nozzle body and located at a peripheral side of the extraction passageway for isolating gas to be sprayed on the substrate so as to form a closed gas flow field enclosing a process reaction region between a substrate carrier and the deposition nozzle such that the residues after the precursor gas reacts with the surface of the substrate do not leak.

The invention relates to an ATRP functional modified proppant and a preparation method thereof. The method comprises the steps: 1) selecting an initiator, and carrying out surface modification on a proppant; and 2) selecting a monomer with functional groups, through an atom transfer radical polymerization (ATRP) method, adopting a catalyst and a ligand, at a certain temperature and under suitable conditions, after a certain time, carrying out reaction grafting on the proppant surface with functional polymer chains, and making the proppant having the functional properties of hydrophobicity, temperature control property and pH sensitivity or reaction activity and the like. The method has flexible and operationable modification, can perform functional design, has high versatility, is suitable for quartz sand, ceramsite and other conventional proppants, and can be used for design and development of new functional proppants; and according to different needs of oil reservoirs, the oil and gas yield is effectively improved.

The invention discloses a polymer sulfur coated slow-release fertilizer and a manufacturing method thereof, first of all, implement granulated fertilizer coating through melting urea, next, reaction of two or above polymer precursors on the surface of granulated fertilizer coated with urine will be achieved to form polymer wrapper, after that, coat the polymer wrapper with modified molten sulfur, and the outermost layer coating is with naturally modified polymer wax combination, which greatly reduces coating materials dosage, improves controlled release properties and nutrient content, the product toughness, abrasive resistance and impact resistance is favorable, low comprehensive cost, membrane materials can be degraded, and of eco-environment protection.

Method of performing atomic layer deposition. The method comprises supplying a precursor gas towards a substrate, using a deposition head including one or more gas supplies, including a precursor gas supply. The precursor gas reacts near a surface of the substrate for forming an atomic layer. The deposition head has an output face comprising the gas supplies, which at least partly faces the substrate surface during depositing the atomic layer. The output face has a substantially rounded shape defining a movement path of the substrate. The precursor-gas supply is moved relative to the substrate by rotating the deposition head while supplying the precursor gas, for depositing a stack of atomic layers while continuously moving in one direction. The surface of the substrate is kept contactless with the output face by means of a gas bearing.

The invention belongs to the technical field of material preparation, and particularly relates to a preparation method and manufacturing equipment for TMDCs (two-dimensional transition metal disulphide compound single crystals). The controllability and the sample quality of preparation of TMDCs samples are improved by regulating the volatilizing rate of a precursor by directly controlling the reaction temperature on the surface of a metal through current, voltage, electromagnetic waves and the like loaded on a metal foil precursor. Meanwhile, the overall gas phase deposition process is a surface chemical reaction; the consumption amount of a reaction precursor is low; the purpose of producing the TMDCs continuously for a long time can be achieved. In the process of preparing the TMDCs by adopting the equipment, metal oxide powder is not required to be taken as the precursor, so that the waste of the precursor is avoided, and the metal precursor is utilized repeatedly. The method and the equipment for preparing the TMDCs can be used for hot wall and cold wall CVD (chemical vapour deposition) systems, and has good universality.

The present invention relates to the use of a surface-reacted natural calcium carbonate as filler in tissue paper products, to a process to prepare tissue paper products, and to a tissue paper product featuring an improved softness, wherein said surface-reacted natural calcium carbonate is the reaction product of a natural calcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally.

The invention discloses a preparation method for a corrosion-resistant and super-hydrophobic aluminum oxide membrane for a zinc layer. The method includes the steps of 1, adopting aluminum sources such as aluminum isopropoxide as a precursor, preparing aluminum oxide sol in a hydrolysis mode under the effect of catalysts, and placing samples into the sol or coating zinc with the sol for roughening surface structures; and 2, modifying the roughened zinc layer through low-surface energy modifying agents. The surface contact angle of the prepared super-hydrophobic membrane is greater than 150 degrees, and the slide angle of the prepared super-hydrophobic membrane is smaller than 10 degrees. According to the method, reaction conditions for preparing the super-hydrophobic membrane are mild, the surface is uniform, and the microcosmic nanostructures can be controlled by changing experiment parameters of sol preparation and dipping or coating means. The aluminum oxide membrane is arranged on the surface, and therefore the corrosion resistance of the zinc layer can be effectively improved. The membrane has the super-hydrophobic performance, and therefore the corrosion resistance of the zinc can be greatly improved.

A process for the production of a zinc oxide coating on a moving glass substrate provides a precursor mixture of a dialkylzinc compound, an oxygen-containing compound and an inert carrier gas. The precursor mixture is directed along a surface of the glass substrate in an atmospheric pressure, on-line, chemical vapor deposition process. The precursor mixture is reacted at the surface of the glass substrate to form a zinc oxide coating, essentially devoid of nitrogen, at a growth rate of >100 Å/second.