12results about How to "Eliminate the problem" patented technology

The embodiment of the invention discloses a chip packaging structure, a preparation method thereof and electronic equipment, and relates to the technical field of semiconductors. The chip packaging structure comprises a packaging substrate, a first component, a second component and an elevating assembly. The package substrate has a first surface and a second surface. The first component is connected to the first surface. The second component and the elevated assembly are connected to the second surface. The elevating assembly comprises a fixing layer and a plurality of conductive columns, and the conductive columns extend in the direction perpendicular to the second surface. The fixing layer surrounds part of the side surfaces of the conductive columns to limit the displacement of the conductive columns. The surface of one side, close to the packaging substrate, of each conductive column is connected with the second surface. The fixing layer fixes the plurality of conductive posts such that the elevated assembly can be used as a single part. In the process of connecting the conductive columns with the packaging substrate, the plurality of conductive columns can be connected to the second surface at the same time, the plurality of conductive columns do not need to be punched one by one, and the yield of the chip packaging structure can be improved.

A robotic monitoring, detection and fire extinction control system comprises a pumping station, a fire main and at least two robotized fire extinguishing units connected to the fire main comprising a fire monitor with drives for vertical and horizontal aiming and a head with a drive for adjusting the spray angle of the jet. Mounted at an inlet upstream of the fire monitor is a butterfly valve with a drive, and mounted at the outlet of the fire monitor, upstream of the head, are a pressure sensor and a portable control console that are connected to a switching unit at the inlet and, via a network controller, to a control device at the outlet. Mounted on the fire monitor is a fire detection and video surveillance device that is connected to a signal processing device that is connected to a video monitor device and to a process control system that are connected to a control device that is connected via a receiving and control device to fire alarms. A foam generating unit is connected to the robotized fire extinguishing units by a foam conduit; additional reserve pipes, connected to the robotized fire extinguishing units, are provided for supplying water and compressed air foam; and an additional controllable butterfly valve, mounted on the foam conduit, is provided and has a drive connected to the switching unit. The head is designed to be capable of supplying water and compressed air foam at a controlled concentration and rate.

The present application relates to the technical field of heating devices, and discloses a ceramic electric soldering iron, comprising a soldering iron head, a handle, a ceramic heating body, a positive wire and a negative wire, wherein the ceramic electric soldering iron further comprises a conductive wire and a ground wire, wherein the negative wire is connected to the soldering iron head, the positive wire is connected to the ceramic heating body, the conductive wire is connected to the negative wire at the front end of the ceramic heating body, the conductive wire is connected to a control measurement center (which can measure a grounding voltage and a grounding resistance), and the ground wire is connected to the handle. The ceramic electric soldering iron has the advantage of determining whether the grounding voltage less than 2 mV and the grounding resistance less than 2 Ω are satisfied.

The invention discloses a visual multi-tube sampler, which relates to the technical field of marine environment detection and collection, and comprises a ballast lead block, a collection frame, an underwater control center, a collection head and a support frame. A bearing head docking plate is arranged on the top of the collection frame, and an integrated mounting plate is arranged on the bottom. A cable guide extending toward the integrated mounting plate is arranged at the bottom of the bearing head docking plate, and the cable guide is used to accommodate an armored cable core cable between a bearing head assembly and an oil-filled junction box; the collection head comprises a center axis frame, a collection head frame, a plurality of sampling mechanisms, an underwater camera, an underwater lighting lamp and an altimeter. By installing the underwater control center and the underwater camera, the underwater lighting lamp and the altimeter on a structure that has no relative movement with the bearing head docking plate during operation, the existence of free cables is eliminated, and the probability of damage of connecting cables due to scratches and collisions is greatly reduced; the underwater camera is installed at the bottom center of the center axis frame and shoots downward, so as to obtain an ideal video image of a sample area without obstruction.

The invention relates to the field of minced garlic processing, in particular to a method for slowing down browning of minced garlic seasonings, which comprises the following steps: step 1, preparing composite garlic granules which comprise 50-60% of fresh garlic granules and the balance of rehydrated garlic granules, namely treating the fresh garlic granules: crushing fresh garlic into granular garlic granules, and adding the fresh garlic granules into the rehydrated garlic granules; putting the garlic granules into water, cleaning and then fishing out; treatment of the rehydrated garlic granules: soaking the dehydrated garlic granules in water for 40-60 minutes, and fishing out the soaked garlic granules; step 2, putting the fresh garlic granules and the rehydrated garlic granules into cold oil, adding condiments, and uniformly stirring; and step 3, filling the composite garlic granules which are uniformly stirred in the step 2, and killing and sterilizing. By implementing the scheme, the browning phenomenon of the minced garlic seasoning is greatly retarded.

The invention discloses a self-healing pH-sensitive hydrogel and a preparation method and application thereof, the self-healing pH-sensitive hydrogel comprises a carrier and a bioactive compound loaded on the carrier, the carrier is a cationic guar gum / hyaluronic acid / zinc ion compound, and the bioactive compound is a ferulic acid / beta-cyclodextrin compound; the synergistic antibacterial effect is achieved through FA, Zn and CG, meanwhile, FA and CG provide oxidation resistance, the hydrogel is endowed with self-repairing performance through electrostatic interaction of carboxyl in HA and quaternary ammonium salt groups in CG, and the wound healing effect of the hydrogel is comprehensively improved.

The invention provides a method for detecting a film layer on the surface of a wafer, which is used for detecting the film layer formed on the wafer, and comprises the following steps: providing incident light, and enabling the film layer to generate reflected light after receiving the incident light; and then, carrying out spectral analysis according to the reflected light, and comparing the spectral analysis with a first reference waveform so as to confirm the material of the coating layer. In addition, according to the spectral analysis of the reflected light, the reflected light is compared with a second reference waveform, so that the thickness of the coating layer is confirmed. Wherein the incident light and the reflected light are provided and received by a spectrograph which is vertically arranged on the coating layer. Through the detection method provided by the invention, the material and the film thickness of the coating layer on the upper surface of the wafer can be effectively detected and classified, the detection efficiency is greatly improved, and optimization is achieved.

The application discloses a high-purity full-water-soluble potassium sulfate fertilizer and a preparation method thereof, and belongs to the technical field of potassium sulfate fertilizers. The high-purity full-water-soluble potassium sulfate fertilizer is composed of the following components in parts by weight: 960-980 parts of industrial-grade potassium sulfate, 10-20 parts of urea phosphate, 5-15 parts of potassium nitrate, 1-3 parts of sodium hexametaphosphate, 0.5-1.5 parts of sodium cocoyl glutamate and 1-5 parts of citric acid-polyethylene glycol modified polyaspartic acid. The problems of slow dissolution and false saturation of traditional potassium sulfate fertilizers in low-temperature cold water are effectively eliminated.

According to the present invention, a method for producing a compound represented by general formula (3) by having a compound represented by general formula (1) and a compound represented by genera formula (2) react with each other reaches a sufficient reaction rate at a low temperature in a short time, and provides an alkoxysilyl alkylaminoalkyl-modified polysiloxane compound which has a low polymer content and good storage stability, while being suppressed in coloration. (In general formula (1), R1 represents a monovalent hydrocarbon group; X represents a hydrogen atom or R13Si (wherein R1 is as described above); and p represents an integer of 1 to 1,000.) (In general formula (2), each of R2 and R3 represents a monovalent hydrocarbon group; R4 represents a divalent hydrocarbon group which may contain a sulfur atom or the like; q represents 0 or 1; and r represents 0, 1 or 2.) (In general formula (3), R1 to R4, p, q and r are as described above; and Y represents a substituent represented by general formula (4) (wherein R2 to R4, q and r are as described above) or R13Si (wherein R1 is as described above).)

The application discloses a cavity electromagnetic field homogenization method for wireless energy transmission. The application uses an internal multi-port method to calculate electromagnetic field distribution in a metasurface resonant cavity under certain port configuration, and then finds a suitable port connection mode through a genetic algorithm, so that the electromagnetic field in the cavity is approximately uniformly distributed. The application realizes uniform distribution of electromagnetic field in the resonant cavity, and can realize efficient transmission everywhere in the cavity.

The utility model relates to the technical field of tension and compression testing machines, and discloses a servo tension and compression testing device, which comprises a bracket; the execution unit is fixedly arranged on the bracket; the tension and compression sensor is installed on an output shaft of the execution unit and used for extruding / stretching a tested workpiece, and the tested workpiece is fixedly arranged on the lower portion of the support; the deformation detection structures are respectively arranged on the tension and compression sensor and the bracket, and are used for detecting the axial deformation of the tension and compression sensor and the bracket in the axial direction when the tension and compression testing device stretches / extrudes the workpiece; through the arrangement of the deformation detection structure, the micro deformation generated by the tension and compression sensor and the bracket is detected by utilizing the displacement generated by the sliding block along the grating ruler, so that the problems caused by the deformation in the tension and compression test are eliminated, and the accuracy of the test device is improved.

The invention provides a method for realizing continuation of a double-layer equivalent source of a magnetic field, relates to the technical field of electromagnetic field control and adjustment, and can more accurately simulate magnetic field distribution in an actual application scene through detailed shape and position determination steps. Therefore, it can be ensured that the designed double-layer equivalent source can show good performance under various working conditions, when the magnetic parameters are calculated, the complexity of the magnetic field source and the influence of the actual working environment are comprehensively considered, and the magnetic field characteristics of the magnetic field source can be predicted more accurately. In this way, design adjustment and recalculation caused by inaccurate parameters in the subsequent stage can be avoided, and refined adjustment can be carried out according to the result of numerical calculation or experimental verification in the adjustment and optimization stage. The iterative optimization process can significantly improve the design performance of the double-layer equivalent source, maximizes the benefits of the double-layer equivalent source, analyzes the technical benefits of the design scheme and predicts the future development direction, and facilitates the evaluation of the feasibility of the design in technology and business.