4results about How to "Guaranteed Antioxidant" patented technology

The application provides an antioxidant composition and application and product thereof, and belongs to the technical field of cosmetics. The antioxidant composition is composed of propolis and mussel mucin, and the mass ratio of the propolis and the mussel mucin is 0.25-1:1. In the antioxidant composition, the propolis and the mussel mucin play a significant synergistic effect in the aspects of antioxidation and moisturization in a specific ratio range, and the product containing the composition has the characteristics of good uniformity, high temperature resistance, cold resistance stability and the like, and has a wide application in skin care products.

The application provides a wafer oxide removal process, and relates to the technical field of semiconductors.The wafer oxide removal process comprises the following steps: a removal step: etching and removing the oxide layer on the wafer surface by using an HF solution, wherein the volume ratio of HF to H2O in the HF solution is 1:50-1:100; and a treatment step: cleaning the wafer by using an SC1 solution, wherein the volume ratio of NH4OH to H2O2 to H2O in the SC1 solution is 1:1:5-1:2:45, and the temperature is 20-35 DEG C.In the process, the oxide layer is sequentially treated by the removal step and the treatment step, the concentration range of HF in the HF solution in the removal step is set to be relatively low, the treatment temperature range in the treatment step is set to be relatively low, and the concentration of H2O2 in the SC1 solution is greater than or equal to the concentration of NH4OH, so that the removal effect of the oxide layer is effectively improved, the quality of the wafer Si is ensured, the yield of subsequent processes is ensured, and the performance and reliability of the formed device are ensured.

This invention provides a highly conductive copper paste that cures in an air atmosphere, its preparation method, and its applications, belonging to the field of conductive paste preparation technology. The highly conductive copper paste comprises: 60-80% conductive copper powder; 3-10% polymer resin; 1-3% curing agent; 3-10% first solvent; 1-5% additives; and 7.5-17% particle-free conductive copper ink. The copper salt precursor in the particle-free conductive copper ink is dissolved in the form of copper ions in a mixture of its complexing agent and second solvent. When the highly conductive copper paste is heated and cured in an air atmosphere, the copper ions in the particle-free conductive copper ink are reduced in situ to nano-copper particles, which form welded connections between the conductive copper powder particles, constituting a conductive network composed of micron-sized conductive copper powder and in-situ generated nano-copper weld points. The highly conductive copper paste of this invention has low manufacturing cost, high conductivity, and the potential for room temperature dormancy and heat-triggered decomposition.

The application discloses a kind of storage-resistant antioxidant blending gasoline blending device and method, belong to gasoline stirring technical field, to solve the problem that conventional rotary injector nozzle is fixed, jet coverage is limited, tank wall and blind area is easily mixed unevenly, affect oil product stability, the application includes blending tank, the circumferential side wall of the inner chamber of blending tank is fixedly installed with the rotary injection assembly for blending gasoline, and the liquid inlet end of rotary injection assembly is communicated with valve one by oil pipe, and the inner wall of liquid outlet end of rotary injection assembly is fixedly installed with a plurality of auxiliary blending components for enhancing gasoline blending, the auxiliary blending component in the application automatically extends and conducts under high pressure, so that branch jet stream and main jet stream cooperatively form three-dimensional multidirectional turbulent flow field, directional impact tank wall and injection blind area, effectively avoid local concentration deviation of additive, guarantee gasoline antioxidant property and storage stability.