10results about How to "Improve key performance" patented technology

The invention provides a wafer pad layer aluminum film and a coating processing technology thereof, the wafer pad layer aluminum film comprises a first AL-containing layer and a third AL-containing layer, the material of the first AL-containing layer is selected from aluminum and / or copper, the first AL-containing layer is connected with a base layer of a wafer pad layer material, the material of the third AL-containing layer is selected from aluminum, the hardness of the first AL-containing layer is greater than or equal to 100 g / cm < 2 >, and the thickness of the first AL-containing layer is greater than or equal to 10 mm. The hardness of the third AL-containing layer is smaller than or equal to 50 g / cm < 2 >, and the thickness ratio of the first AL-containing layer to the third AL-containing layer is 1: 1. The hardness of the first AL-containing layer is larger than or equal to 100 g / cm < 2 >, the hardness of the second AL-containing layer ranges from 60 g / cm < 2 > to 80 g / cm < 2 >, and the hardness of the third AL-containing layer is smaller than or equal to 50 g / cm < 2 >. During preparation, the coating rate of the first AL layer ranges from 0.45 nm / s to 0.5 nm / s, the coating rate of the second AL layer ranges from 0.3 nm / s to 0.45 nm / s, and the coating rate of the third AL layer ranges from 0.25 nm / s to 0.35 nm / s. According to the invention, the problem of poor IMC after packaging ball mounting inversion is solved, and the key performance of the AL layer after film forming is improved.

The application discloses an integrated circuit parameter optimization method and system based on emulator sensitivity information and belongs to the technical field of integrated circuit electronic design automation. The method comprises the following steps: S1, acquiring design parameters, constraint conditions and target performance requirements and establishing a parameterized model; S2, calling an emulator to acquire performance response data and sensitivity information; S3, judging whether the optimization requirements are met according to the performance response, and if not, determining a parameter adjustment strategy based on the sensitivity information and generating new parameters; and S4, re-inputting the updated parameters into the emulator for iterative optimization until a termination condition is met. The application synchronously acquires performance and sensitivity information through a single simulation call, guides the parameter evolution direction by using a sensitivity matrix, realizes multi-parameter decoupling in combination with orthogonal transformation, effectively reduces the number of simulation calls, avoids local optimum and iterative divergence, and realizes efficient and stable automatic optimization of complex integrated circuit parameters.

The invention belongs to the technical field of protein functions and application, and particularly relates to application of TIPE2 protein in preparation of a preparation for inhibiting iNKT cell activation, and a nucleotide sequence for coding the TIPE2 protein is shown as SEQ ID NO.1. The TIPE2 protein provided by the invention can prevent excessive activation of iNKT cells to avoid further autoimmune diseases. The key effect of the TIPE2 in liver related diseases is expanded, and the unknown value of the TIPE2 in the iNKT cell biological function of immune-mediated liver injury is disclosed. It is proved that the TIPE2 is a key regulatory factor of liver homeostasis, and a clue is provided for the TIPE2 to become a potential therapeutic target for regulating immune-mediated liver injury.

A fluid and solid contact interface simulation method based on flow-solid interface coupling dynamic mesh, the initial mesh of the target geometric model is divided, and the flow field, temperature field and interface evolution driving field are solved according to the initial conditions and boundary conditions, after the theoretical displacement amount of the mesh node in each time step is obtained, based on the interface coupling dynamic mesh (ICDM) method, the local real normal displacement scalar is sequentially executed node state lock protection, equivalent normal projection and parallel synchronous processing; then through the grid node movement, the grid coordinates are updated and the flow field, temperature field and interface evolution driving field are re-solved on the updated grid to obtain a new round of node displacement, and whether the simulation reaches the preset time or the deformation target is judged; finally, the final interface topography, grid node coordinates, grid quality, flow field distribution, temperature field distribution, pressure field distribution and / or heat exchange performance parameters are output. The present application can realize the synchronous iterative update of the deposition behavior and the temperature field and even the flow field, dynamically reflect the influence of deposition on the heat exchange performance, thereby greatly improve the simulation accuracy and physical consistency and be suitable for the subsequent machine learning reverse design of a large number of structure parameters and heat exchange performance samples.

The application discloses a kind of sulphuric acid method titanium dioxide titanium liquid vanadium chromium manganese depth purification method and bifunctional mesoporous silica adsorbent, belong to titanium dioxide technical field.The application is with amino methylene phosphonic acid / 8-hydroxyquinoline bifunctional mesoporous silica adsorbent as adsorption material, under ORP-150 to-80mV, temperature 45~55 ℃, to sulphuric acid method titanium liquid is carried out multistage series connection adsorption purification, realizes the selective adsorption of V, Cr, Mn, V≤5mg / L in titanium liquid after purification, Cr≤8mg / L, Mn≤15mg / L, removal rate all reach 80% or more, the rutile type titanium dioxide prepared in whiteness, colour strength and color stability under ultraviolet irradiation condition etc.All have obvious promotion, adsorbent can be recycled, it is suitable for clean production of high-quality rutile type titanium dioxide.

The invention belongs to the technical field of power battery manufacturing, and discloses a power battery low-density high-performance heat-conducting structural adhesive and a preparation method thereof.The heat-conducting structural adhesive is formed by mixing a component A and a component B, and both the component A and the component B comprise modified hollow glass beads; in a heat-conducting adhesive layer formed by mixing and curing a component A and a component B, all organic components participate in a cross-linking reaction of isocyanate and polyol to form an enhanced long-chain interpenetrating reticular macromolecular polyurethane polymer, and a micro-network structure in the heat-conducting adhesive layer is constructed by taking modified hollow glass beads as a framework; large-particle-size modified hollow glass beads and small-particle-size aluminum hydroxide particles are uniformly and firmly coated, pores around the modified hollow glass beads are filled with the aluminum hydroxide particles to form a short three-dimensional heat-conducting channel, and all the components form a nano-micron-scale interpenetrating network in a cured heat-conducting glue layer. Therefore, the heat-conducting glue layer has low density and high heat-conducting property at the same time so as to meet the requirements of weight reduction and efficiency improvement of the electric automobile at the same time.

The application discloses an optical waveguide device structure and a forming method thereof, and comprises the following steps: forming a waveguide functional layer, a hard mask layer and a photoresist pattern on a substrate; performing first etching on the hard mask layer through the photoresist pattern to form a hard mask pattern; using a first free radical to perform first processing on a first sidewall of the hard mask pattern with the photoresist pattern, so as to reduce the surface roughness of the first sidewall; performing second etching on the waveguide functional layer through the hard mask pattern after the photoresist pattern is removed to form a waveguide pattern; using a second free radical to perform second processing on a second sidewall of the waveguide pattern with the hard mask pattern, so as to reduce the surface roughness of the second sidewall; and removing the hard mask pattern. The application can significantly improve the smoothness of the sidewall of the waveguide pattern, thereby improving the key performance of the device.

An X-band self-biased circulator includes a substrate and a microstrip circuit located on the substrate; the microstrip circuit is a double Y-junction structure, including a central circular junction, a large Y-junction branch and a small Y-junction branch arranged at intervals, and equivalent capacitive transmission lines and equivalent inductive transmission lines are arranged on the large Y-junction branch and the small Y-junction branch, and the ends of the three arms of the large Y-junction extend to form capacitive transmission lines as ports; the substrate includes a ferrite sheet, a primary dielectric sheet and a secondary dielectric sheet, the circular ferrite sheet is embedded in the annular primary dielectric sheet and fits tightly with the primary dielectric sheet, and the composite structure of the ferrite sheet and the primary dielectric sheet is embedded in the secondary dielectric sheet with a circular inner side and a hexagonal outer side and fits tightly with the secondary dielectric sheet; the capacitive transmission line port formed by extending the end of the large Y-junction is located on the secondary dielectric sheet. The present invention forms a multi-level structure by combining the ferrite sheet with the primary and secondary dielectric sheets, thereby strengthening the coupling effect between the ports; and the isolation effect of the circulator is enhanced by designing the slope of the structure of the entire circulator.

The invention relates to a high-strength high-bending aluminum alloy and a preparation method thereof, the aluminum alloy comprises the following alloy elements in percentage by mass: 0.87-0.92% of Si, less than or equal to 0.15% of Fe, 0.05-0.09% of Cu, 0.58-0.63% of Mn, 0.88-0.93% of Mg, less than or equal to 0.10% of Zn, less than or equal to 0.10% of Ti, 0.08-0.12% of Cr, less than or equal to 0.05% of Zr, less than or equal to 0.05% of V and the balance of Al and inevitable impurities, the content of each impurity element is less than or equal to 0.05%, and the total amount of the impurities is less than or equal to 0.15%. The manufacturing method comprises the steps of alloy smelting, bar casting, homogenizing heat treatment, saw cutting, extrusion forming, aging treatment and the like. According to the aluminum alloy, the yield strength is larger than or equal to 280 MPa, the tensile strength is larger than or equal to 310 MPa, the bending angle can be kept at 75 degrees or above, the ductility is larger than or equal to 10%, and all key performance is obviously improved.

The invention belongs to the technical field of guidance control, and discloses a solid carrier rocket atmosphere external guidance control method and system, and the method comprises the steps: designing a dual-redundancy navigation system; a new attitude control algorithm; optimizing a track correction module; the performance of the thrust vector control system is further improved through optimization of the thrust vector control TVC system, stable control over the complex attitude outside the atmospheric layer is achieved through the hybrid control technology of the liquid micro-thruster and the solid rocket engine, the attitude regulation and control capacity of the rocket is enhanced through configuration of the multi-redundancy thruster, and the performance of the rocket is improved. And it is ensured that enough control torque and correction capacity are provided in the track transfer process. According to the invention, the navigation precision is improved: through the design of the dual-redundancy navigation system, the precision drift of inertial navigation is greatly reduced, especially in a long-time flight process, high-precision orbit control can be maintained, and the hit rate of a target orbit is improved.