38results about How to "Will not change nature" patented technology

The invention provides a method for forming fin field-effect transistors, and a method for forming MOS transistors. The method for forming fin field-effect transistors comprises the steps of providing a semiconductor substrate provided with a plurality of discrete fin parts; forming a pseudo grid crossing the sidewalls of the fin parts and the top surfaces of the fin parts; forming a dielectric layer covering the pseudo grid and the semiconductor substrate, wherein the surface of the dielectric layer is higher than the top surface of the pseudo grid; implanting first ions and implanting cured ions in the dielectric layer to increase the density of the dielectric layer; planarizing the dielectric layer to expose the surface of the pseudo grid; removing the pseudo grid to form a groove, and forming a metal gate in the groove. According to the invention, the defect of recesses is prevented from occurring in the dielectric layer.

The invention discloses a poly-spirulina peptide biostimulant, and belongs to the field of an agricultural fertilizer synergist. Domesticated and separated fermentation strains are used for fermentingspirulina so as to prepare the poly-spirulina peptide biostimulant; the fermentation strains are any one kind of bacillus subtilis, bacillus licheniformis, bacillus amyloliquefaciens, paenibacillus mucilaginosus and bacillus lateralis. The poly-spirulina peptide biostimulant is mainly prepared through biological fermentation; no chemicals are added; safety and environment protection are realized;the fertilizer utilization rate and the soil enzymatic activity can be improved; medium trace elements in the soil can be supplemented; the crop rooting and nutrition absorption can be promoted; thesoil environment is improved; the harmful bacteria of soil are inhibited.

The invention relates to a method of manufacturing a charge dissipative surface layer on a member made from or consisting of a dielectric polymeric material or polymer-based composite which is intended to be used in space and other extreme environments, the member having at least one surface, in particular two opposing surfaces, each of the surfaces having a flat or a three-dimensional shape. The method comprises the steps of carbonizing the at least one surface of the member in a vacuum environment through ion bombardment with simultaneous surface renewal in a dynamic way, by bombardment of the at least one surface with an ion beam formed in a gaseous linear high-current technological ion beam source of rare gas and added predetermined amount of a carbonaceous gas in the same ion beam gas admixture in order to achieve a treated carbonized surface layer with a uniform surface resistivity in a charge-dissipative range.

A method for forming a fin field effect transistor and a method for forming a MOS transistor. The method for forming a fin field effect transistor includes: providing a semiconductor substrate on which several discrete fins are formed; forming a dummy gate across the sidewall and top surface of the fin; forming a dielectric layer covering the dummy gate and the semiconductor substrate, the surface of the dielectric layer being higher than the top surface of the dummy gate; performing a first ion implantation, Implanting solidified ions into the dielectric layer to increase the density of the dielectric layer; planarizing the dielectric layer to expose the surface of the dummy grid; removing the dummy grid to form a groove; forming a metal grid in the groove. The method of the present invention prevents pitting defects from being generated in the dielectric layer.

The invention discloses a method for improving the interface adhesion between glass aggregate and asphalt by using nanometer iron oxide. The nanometer iron oxide is used to improve the interface adhesion between glass aggregate and asphalt in order to improve the glass aggregate utilization rate and realize good adhesion, good durability, small energy consumption and no pollution to environment. The method comprises the following steps: 1, cleaning and drying the glass aggregate for later use; 2, preparing a nanometer iron oxide solution, immersing the glass aggregate in step 1 in the nanometer iron oxide solution, and taking out and drying the glass aggregate after the surface of the glass aggregate is completed infiltrated with the nanometer iron oxide solution; and 3, immersing the glass aggregate obtained in step 2 in hot matrix asphalt to make the surface of the glass aggregate completely wrapped with the matrix asphalt.

The invention relates to the technical field of fertilizers, in particular to a green fertilizer for tomatoes. The green fertilizer for tomatoes consists of the following raw materials in parts by weight: 20-40 parts of cow dung, 25-40 parts of pea meal, 20-35 parts of corn meal, 10-18 parts of sweet potato waste, 1-7 parts of loofah sponge, 18-25 parts of rotten bananas, 5-10 parts of yam flour,3-8 parts of potassium citrate, 1-5 parts of tartaric acid, 1-6 parts of sodium alginate, 4-12 parts of limestone and 1-6 parts of saccharomycetes. The green fertilizer for tomatoes is reasonable in ingredient proportioning, abundant in nutrition, easy to absorb, good in fertilizer effect and high in utilization rate, does not contain antibiotic or hormone, and is environmentally friendly, safe and pollution-free; the soil property cannot be changed; the raw materials are cheap and easily obtained; and the production cost is low.

The present invention discloses a method for improving the liquidity of a viscoelastic fluid via high frequency ultrasounds. High frequency ultrasonic waves are introduced into the viscoelastic fluid by utilizing an ultrasound amplitude-change pole supplied with power by an ultrasonic power supply to generate a large amount of bubbles, and the bubbles are detonated by shear movement generated by the ultrasonic amplitude-change pole, so that molecular chains wound together are scattered, the viscoelasticity of the viscoelastic fluid is lowered, and the fluidity of the viscoelastic fluid is improved. The method lowers the viscoelasticity of the fluid by way of scattering the molecular chains wound together, but does not change the molecular structure, therefore, the chemical property of the fluid is not changed; Scattered molecular chains can be recovered in the winding state along with Brownian motion step by step after being poured, so that the high viscoelasticity of the viscoelastic fluid can be recovered, and connected channels are better protected. The method lowers the viscoelasticity of the viscoelastic fluid on the basis of the high frequency ultrasonic shear movement without high temperature, as a result, extra thermal stress and transformation are not introduced into a chip in a pouring process.

A nanoimprinted photoresist and preparation method therefor. The nanoimprinted photoresist comprises the following components in percentage by weight: 65-97% of an organic small-molecular solvent, 1-30% of resin, 0.01-5% of graphite fluoride and a derivative thereof, 0.01-5% of a surfactant, and 0-1% of an additive. Graphite fluoride and a derivative thereof are added to the nanoimprinted photoresist, and because graphite fluoride and the derivative thereof have low surface energy, the problems such as pattern defects and mold damage during demolding caused by an excessive adhesive force between a traditional photoresist having high surface energy and the mold are resolved.

The invention relates to outdoor dielectrophoresis dust removing equipment. The middle of a box body of the dust removing equipment is provided with a dust removing chamber. The dust removing chamber of the dust removing equipment is provided with parallel electrode groups. Each parallel electrode group comprises a plurality of parallel dielectrophoresis electrodes. The dielectrophoresis electrodes comprise metal profiles. The cross sections of the metal profiles are in the shapes with protrusions. The protrusions form the ridges of the dielectrophoresis electrodes. According to the outdoor dielectrophoresis dust removing equipment, the structural design is scientific and reasonable; a mixed flow control chamber, the dielectrophoresis dust removing chamber and an outlet smoke box are arranged in the equipment, so that airflow steadily and smoothly gets in and out of the dust removing equipment, and the applicability of the dielectrophoresis dust removing equipment under the outdoor environment is improved; and the parallel electrode groups are adopted, the electrodes of the different electrode groups can be connected to the two ends of an alternating current power source, and a dielectrophoresis effect can be formed in a large-scale range.

The present invention relates to a waveguide pressure sensor based on an M-Z structure and a detection method thereof. The waveguide pressure sensor based on an M-Z structure includes a single-wavelength light source, an M-Z structure and an optical power meter; the single-wavelength light source, the M-Z structure It is sequentially connected with the optical power meter, and the M-Z structure includes a sequentially connected input coupler, a pressure sensing area composed of two single-mode waveguides with different lengths, and an output coupler. The waveguide pressure sensor provided by the present invention uses the change of the effective refractive index to measure the pressure, so it will not change the nature of the force-applying object itself; compared with the traditional detection method, the measurement accuracy of this patent can reach 0.001μW, and the range can reach 12Mpa ; At the same time, the pressure detection process is completely based on the photoelastic effect and interference effect of the crystal, without current generation, so zero power consumption, energy saving and environmental protection.

The invention relates to a method for removing residual catalyst in bisphenol A reaction liquid from the production of the chemical material. The method is capable of removing the residual acid catalyst in the bisphenol A reaction liquid and improving the quality of the bisphenol A. The technical scheme comprises the following steps of: inputting the bisphenol A reaction liquid or acid-removing assistant of the bisphenol A reaction liquid into a mixer through an inputting pipe; and then inputting the liquid into an adsorber, wherein the adsorber is a tube-type device and the tube-type device is filled with the fiber film coalescence material; inputting hot water into a shell layer of the tube, wherein the acidity of the bisphenol A reaction liquid is smaller than or equal to 0.001 mmol / L and meets the requirement after the liquid is adsorbed by the adsorber; then directly outputting the bisphenol A reaction liquid through an outputting pipe; inputting acetone solvent into the adsorberto wash the fiber film coalescence material when the acidity is more than 0.001 mmol / L; inputting the washed acetone into a solvent pot to be recycled or be recycled after the acetone is distilled. The method provided by the invention has the advantages of low investment and simple process flow; the method does not lead in other impurities and does not change the performance of the bisphenol A; the temperature for deacidifying is low, the solvent can be recycled and the method can be used for producing the bisphenol A.

The invention relates to a dechlorination method for a high-chlorine raw material hydrogenation process, in particular to a dechlorination method suitable for a reaction effluent containing chloride ions and solid particles generated in a waste biomass fuel hydrogenation process, which comprises the following steps: in a suspended bed reaction part, a dechlorination agent is added together with a suspended bed catalyst into a feed, in a reactor, chloride ions are converted into high-melting-point chlorine salt by a dechlorinating agent, the high-melting-point chlorine salt enters a subsequent thermal high-pressure separation part along with a reaction product, in the thermal high-pressure separation part, the reaction product is divided into a gas phase and a liquid phase, the liquid carries catalyst particles and the chlorine salt to flow downwards, and the gas flows upwards. The method is suitable for the dechlorination process of the hot high-pressure gas of the material flow of the chloride ions generated in the hydrogenation process of the biomass fuel suspended bed, the problems that the content of the chloride ions in the hot high-pressure gas is high, and the chloride ions of follow-up equipment materials are corroded in the cooling process are solved, and the operation safety of the hot high-pressure gas entering a follow-up system is improved.

The invention belongs to the field of separation, and particularly relates to a hollow fiber positively charged membrane and a preparation method thereof, and the preparation method comprises the following steps: mixing the following components in parts by mass: a styrene maleic anhydride random copolymer, a main material, a pore-foaming agent and a solvent; performing stirring at 60 DEG C for 24 hours, standing for 24 hours to form a membrane casting solution, and then extruding the membrane casting solution and the core solution from a hollow fiber spinneret plate into a coagulating bath for sizing to obtain a hollow fiber positively charged membrane containing exposed amino groups, wherein the main material is one or a mixture of more of polysulfone, polyether sulfone, polyvinylidene fluoride and polyvinyl chloride; when the internal pressure type hollow fiber positively charged membrane is synthesized, the core liquid contains a polyamine substance; when the external pressure type hollow fiber positively charged membrane is synthesized, the coagulating bath contains polyamine substances. The hollow fiber membrane prepared by the method provided by the invention is obviously positively charged, and the pollution resistance (the ratio of accumulated water yield to water yield) is also obviously improved.

The invention belongs to the field of separation, and specifically relates to a hollow fiber positively charged membrane and a preparation method thereof, comprising the following steps: the following components in parts by mass: styrene maleic anhydride random copolymer, a main material, and a porogen and solvent; stirring at 60°C for 24 hours, standing for 24 hours to form a casting solution, and then extruding the casting solution and core solution from a hollow fiber spinneret into a coagulation bath for shaping to obtain a hollow fiber loaded positive containing exposed amino groups Electric membrane; the main material is polysulfone, polyethersulfone, polyvinylidene fluoride, and polyvinyl chloride; when synthesizing an internal pressure type hollow fiber positively charged membrane, the core The liquid contains polyamine substances; when synthesizing the external pressure type hollow fiber positively charged membrane, the coagulation bath contains polyamine substances. The hollow fiber membrane prepared by the method of the invention is obviously positively charged, and the pollution resistance (the ratio of cumulative water production to water production) is also obviously improved.

The present invention relates to a method for the manufacture of charge dissipating surface layers on components made of or consisting of dielectric polymeric materials or polymer-based composite materials intended for use in space and other extreme environments, said components having at least A surface, in particular, has two opposing surfaces, each of which has a planar shape or a three-dimensional shape. The method comprises the steps of carbonizing at least one surface of the component by ion bombardment in a vacuum environment while dynamically renewing the surface, said step utilizing a gaseous linear high current technology ion beam source in a noble gas bombarding the at least one surface with the formed ion beam and a predetermined amount of carbon-containing gas added in the ion beam gas blend to obtain a treated carbonized surface having a uniform surface resistivity in the range of charge dissipation Floor.

The present invention relates to a preparation method of silver-based η-Al2O3 mesoporous fiber antibacterial powder, comprising: 1) dissolving PEG600 in deionized water to obtain solution A, adding Al(NO3)3·9H2O to obtain solution B; 2) taking CO(NH2)2 was added to solution B to obtain solution C, and solution C was hydrothermally reacted to obtain product D; 3) product D was taken out, cooled and filtered to obtain product E, product E was washed, dried, and ground to obtain a precursor 4) Soak the mesoporous fiber in AgNO3 solution, add NH3·H2O, oscillate and adsorb to obtain silver-based η-Al2O3 mesoporous fiber antibacterial powder. The present invention adopts η-Al2O3 (PEG) mesoporous fiber as the carrier of antibacterial agent, effectively utilizes the good adsorption performance of mesoporous fiber, and the prepared antibacterial powder has obvious antibacterial effect, and since Al2O3 is the main chemical substance of ceramic glaze Components, using the mesoporous fiber as a carrier not only does not change the properties of the glaze, but also reduces the sintering temperature of the glaze and significantly improves the performance of the glaze layer.