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173results about How to "Reduce process cost" patented technology

Semiconductor fingerprint identification sensor and manufacture method thereof

The invention discloses a semiconductor fingerprint identification sensor and a manufacture method thereof. The semiconductor fingerprint identification sensor comprises an induction area, a control area and an interface area, wherein the induction area, the control area and the interface area are in communication connection; fingerprint information induced by the induction area is sent to the control area; after the fingerprint information is processed by the control area, the processed fingerprint information is output through the interface area; the induction area comprises an insulation layer, a routing layer, a substrate layer and a protection layer, wherein the insulation layer, the routing layer, the substrate layer and the protection layer are fixed in sequence; the routing layer is embedded between the insulation layer and the substrate layer; one surface, which contacts with the protection layer, on the substrate layer, is provided with sensor arrays; through holes corresponding to the sensor arrays are arranged on the substrate layer; and the sensor arrays are electrically connected with a sensing lead wire circuit of the routing layer through the through holes. The invention has the advantages of being low in cost, high in signal to noise ratio, high in reliability and simple in processing technology.
Owner:BOE TECH GRP CO LTD

Circulating production process for preparing hydrogen fluoride by utilizing fluorosilicic acid

The invention discloses a circulating production process for preparing hydrogen fluoride by utilizing fluorosilicic acid. The circulating production process comprises the following steps: 1) mixing the fluorosilicic acid with alkaline-earth metal fluoride or alkaline metal fluoride to react to obtain a mixed solution of the fluorosilicic acid and fluorosilicate; 2) distilling the mixed solution obtained by the step 1) and collecting hydrogen fluoride gas to obtain a fluorosilicate solid; 3) heating and decomposing the fluorosilicate solid to obtain a fluoride solid and silicon tetrafluoride gas; absorbing the silicon tetrafluoride gas with a fluorosilicic acid solution and filtering to obtain the fluorosilicic acid solution with increased concentration and silica gel sediment, so that one production period is finished; 4) taking the fluorosilicic acid solution obtained by the step 3) and the fluoride solid to react according to step 1) to step 3). According to the process disclosed by the invention, metal fluoride is actually not consumed, and only needs to be added at the initial stage of the process; the fluoride can be circularly utilized and only the fluorosilicic acid raw material and water are consumed; the process has low cost, a byproduct only contains silica gel and the yield of the hydrogen fluoride reaches 98.8 percent or more.
Owner:张旭

Preparation method of flexible super-hydrophobic and super-oleophobic structure

The invention discloses a preparation method of a flexible super-hydrophobic and super-oleophobic structure. The preparation method comprises the following steps of: (1) manufacturing a bottom layer of the flexible super-hydrophobic and super-oleophobic structure: rotatably coating a layer of negative photoresist on a substrate and carrying out exposure without using a mask; (2) rotatably coating a layer of negative photoresist on the negative photoresist after exposure of the step (1), and carrying out exposure by utilizing an array graphic mask; (3) carrying out second-time exposure on the photoresist of a structural layer: adopting the mask corresponding to the step (2) to carry out etching exposure; (4) developing: carrying out development on the structure after exposure in the step; (5) plating a protective layer film: forming a layer of protective film on the surface of the structure obtained in the step (4); (6) peeling: peeling the structure obtained after treatment of the step (5) from the substrate and obtaining the flexible super-hydrophobic and super-oleophobic structure. The preparation method disclosed by the invention is simple in process and low in cost, and has great promotion action for popularization and application of the flexible super-hydrophobic and super-oleophobic structure.
Owner:HUAZHONG UNIV OF SCI & TECH

Diamond salt fusing and tungsten plating method

The invention relates to a diamond salt fusing and tungsten plating method. The diamond salt fusing and tungsten plating method is characterized in that after greasy dirt on the surface of a diamond is removed through ultrasonic cleaning in acetone, the diamond is ultrasonically cleaned through alcohol and dried; and then the cleaned diamond, tungsten-containing ammonium salt and salt fusing salt are mixed according to a certain proportion and subjected to ball milling, powder obtained after ball milling is placed in an alumina crucible to be subjected to high-temperature treatment, the treatment temperature ranges from 900 DEG C to 1,200 DEG C, the insulating time ranges from 0.5 h to 4 h, and then cooling is achieved along with a furnace. The powder obtained after high temperature treatment is further ground, salt is removed through multiple times of ultrasonic vibrating and distilled water boiling, and then the tungsten-plated diamond is obtained. The surface of the tungsten-plated diamond prepared through the method contains WC and W, a plating layer is even, the comprehensive mechanical performance is good, the binding force is high after the tungsten-plated diamond and metal powder are sintered, and the tungsten-plated diamond is suitable for preparing various diamond cutting and grinding tools.
Owner:江苏虹普电子材料科技有限公司

Preparation method of polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent

The invention discloses a preparation method of a polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent, and belongs to the technical field of textile and chemical industry. The preparation method comprises the steps that hexamethylenediamine, adipic acid, double-end carboxyl polyethylene glycol and double-end amino polyether silicone oil are matched and mixed to be uniform according to the amount of substance, nitrogen protection is introduced in, the temperature is slowly increased for a reaction, phosphorous acid and a manganese dioxide solid body are added, and the temperature is increased for normal-pressure condensation polymerization; a sodium chloride solid body with the same mass as the phosphorous acid is added, slow stirring, cooling and standing layering are carried out, then, a water layer is removed, and the polyamide polyether organosilicone ternary polymerization type hydrophilic finishing agent is obtained. On the basis of the prior art, the reaction condition is optimized, and the manganese dioxide solid body is added as the catalyst for condensation polymerization, so that the reaction is carried out at normal pressure, and industrial production is facilitated; meanwhile, the prepared finishing agent has the good hydrophilic finishing effect on fabric, has the good improvement on the fabric soft hand feel, antistatic property and washing resistance, and is high in economic benefit.
Owner:中山市溢锦纺织有限公司

Circuit board structure and making method

The invention provides a kind of circuit board's structure and its preparation method, which includes: to form No.1 and No. 2 dielectric layer on the No. 1 and No. 2 loading plate, then separate one side of the No. 1 and No. 2 circuit layer that are formed on the No. 1 and No. 2 loading plate into one No. 3 dielectric layer and then laminate them, embed the No. 1 circuit layer into the position between the No. 1 dielectric layer and the No. 3 dielectric layer, embed the No. 2 circuit layer into the position between the No. 2 dielectric layer and No. 3 dielectric layer, and to form a No. 3 circuit layer on the outer surface of the No. 1 dielectric layer, form a No. 4 circuit layer on the outer surface of the No. 2 dielectric layer; the circuit board structure of the invention includes: sandwich layer plate, No. 3 circuit layer, No. 4 circuit layer; the circuit board structure of the invention and its preparation method enhances the wiring density for the circuitry of the circuit board, shortens the path for transmitting signal, improves the electric property quality of the circuit board, simplies the working procedures, shortens the time for all working procedures and reduces the cost for all working procedures, lessens the thcickness of circuit board, which meets the development trendancy of micromation.
Owner:PHOENIX PRECISION TECH CORP

Thin-layer antirust oil and preparation method thereof

The invention discloses thin-layer antirust oil. The oil contains 65-67wt% of lightweight refined oil, 9-11wt% of antirust compounding agent 1, 9-11wt% of antirust compounding agent 2, 10-14wt% of antirust compounding agent 3, 0.02-0.08wt% of antirust compounding agent 4, 0.06-0.1wt% of stearic acid, 0.4-0.6wt% of antioxidation compounding agent and 0.8-1.2wt% of surfactant. A preparation method of the thin-layer antirust oil comprises the following steps: adding the lightweight refined oil to a reactor and stirring the lightweight refined oil; adding the antirust compounding agent 1, the antirust compounding agent 2 and the antirust compounding agent 3 to the reactor in sequence and continuously stirring the mixture for 25-35 minutes; then adding the stearic acid, the antioxidant and theantirust compounding agent 4 to the reactor in sequence and continuously stirring the mixture for 25-35 minutes; and then adding the surfactant to the reactor and continuously stirring the mixture for 80-120 minutes, thus obtaining the thin-layer antirust oil. The thin-layer antirust oil has the following advantages: the production process of the antirust oil is simple; the antirust oil is non-toxic and harmless, has excellent moisture and heat resistance and salt mist resistance and can be sprayed, brushed or dipped on the parts; and the antirust oil has thin coating, so the parts with the antirust oil can be assembled without cleaning the antirust oil.
Owner:上海锦海特种润滑油厂

Three-dimensional grid core material woven fabric

The invention discloses a three-dimensional grid core material woven fabric. The three-dimensional grid core material woven fabric is composed of a first face layer fabric, a second face layer fabric and a core layer, wherein the first face layer fabric and the second face layer fabric are woven through weft and warp made of inorganic nonmetallic materials, and the core layer is used for connecting the first face layer fabric and the second face layer fabric. The low-density weft and warp of the first face layer fabric are interwoven in a tabby structure mode, a plurality of pieces of warp in adjacent sections are tied respectively to form stranding warp through wrap-directional filaments in a twisted-woven mode, and therefore the first face layer fabric which is of a continuous mesh grating-shaped structure is formed. Core layer filaments are distributed in a continuous V-shaped structure mode in the warp direction and are continuously and alternately distributed in an I-shaped or V-shaped mode in the weft direction, corresponding warp and weft of the first face layer fabric and the second face layer fabric are vertically connected at intervals, and the three-dimensional grid core material woven fabric is formed. The three-dimensional grid core material woven fabric has the advantages that the structure is advanced and reasonable, when used as core materials for manufacturing light building members, the three-dimensional grid core material woven fabric is good in compatibility for foaming cement or gypsum or other else, pouring is convenient, tamping is easy, and the strength of a produced product is high.
Owner:CHANGZHOU YUECHENG NEW MATERIAL

Nickel-free environment-friendly electroplating process

The invention belongs to the technical field of electroplating of plastic parts, and in particular relates to a nickel-free environmental protection electroplating process. The nickel-free environmental protection electroplating process of the present invention adopts nickel-free environmental protection electroplating, which reduces the toxicity of nickel to the human body; the processing process is simple and easy to implement, the process cost is low, the process flow is shortened and simplified, the processing time is short, and the production efficiency is high; pre-treatment Using plasma treatment, carbonyl, carboxyl, hydroxyl and other hydrophilic groups are formed on the surface of plastic structural parts, which can effectively roughen the surface of plastic structural parts and reduce the cumbersome process of conventional wet pretreatment; the conditions are mild and will not affect the plastic structural parts The structure and performance are affected; the palladium-free sensitizing solution and activation solution are used to replace the traditional colloidal palladium activation process, which avoids pollution while saving man-hours and reducing process costs; the metal coating is uniform and dense, with good stability; the process is low-toxic and environmentally friendly. Will not produce toxic carcinogenic and environmental pollution substances.
Owner:太仓市金鹿电镀有限公司

Improved hierarchical clustering method for sewage abnormity detection

The invention discloses an improved hierarchical clustering method for sewage abnormity detection. The invention provides an improved hierarchical clustering method applied to automatic monitoring ofsewage abnormity detection. According to the method, the terminal condition is judged through an LDA information gain algorithm in combination with a grid clustering idea in machine learning, so thathigh efficiency and accuracy of clustering are realized, an optimal clustering scheme of data is determined, and abnormity in sewage treatment is determined through judgment of a normal cluster and anabnormal cluster. In order to identify abnormal data in sewage treatment data, an improved hierarchical clustering algorithm based on grids is applied to detect data abnormity. According to the algorithm, grid clustering is used for data preprocessing, and an LDA algorithm is used for judging optimal clustering. Through combination of grid clustering, the overall clustering efficiency is improved; meanwhile, the accuracy degree of the whole clustering process is guaranteed through cohesion type hierarchical clustering, an LDA-based information gain algorithm serves as a clustering terminationcondition, and therefore the problem that the clustering effect is unstable in the hierarchical clustering algorithm is well solved, and the intra-class variance is minimum and the inter-class variance is maximum after projection.
Owner:CENT SOUTH UNIV
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